basic hvac requirements part t general 1.01...

SECTION 23 00 01

BASIC HVAC REQUIREMENTS

PART t GENERAL

1.01 SECTION iNCLUDES

Basic HVAC Requirements specifically applicable to Division 23 Sections, in addition toDivision 1 - General Requirements.

1.02 PLANS

These specifications are accompanied by plans indicating typical layouts, pipe andequipment location, etc. The plans and these specifications are complimentary each tothe other and what is called for by one shall be as binding as if called for by both. Shouldthere be a conflict between Drawings and specifications regarding a material shown ofwork described or detailed then the material of work having the greater value shall be

provided.

The plans as prepared are in general diegrammatic. The contractor shall carefully lay outhis work at the site to conform to the architectural, mechanical, electrical and structural

conditions to provide grading of piping, to avoid all obstructions and to c.•nform to detailsof installation as shown on the plans and supplied by the manufacturers of the equipmentto be installed, and thereby to provide an integrated satisfactorily operating installation.The General Contractor must coordinate the work of all trades. All necessary offsets

in piping, fittings, ductwork, etc. required to avoid interferences between piping,equipment, structural and architectural work are not shown but shall be furnished andinstalled by the Contractor without additional expense to the Owner.

These specifications and plans accompany;ng same are intended to cover systems whichwill not interfere with the design of the building, which will fit into the available spaces, andwhich will insure complete and satisfactory systems. Each contractor shall, therefore,carefully examine the plans and the building and shall be responsible for the proper fittingof his material and apparatus into the building,

Contractor's attention is directed that all equipment he proposes to furnish shall fit into the

spaces allocated for same on the plans, it shall be the Contractor's responsibility tofurnish data to evidence that sufficient space can be provided for the installation of

proposed equipment and that adequate access will exist for servicing and maintenance ofequipment. Should changes become necessary during construction, the contractor shallmake such necessary changes at his (the Contractor's) own expense.

Exceptions and inconsistencies in plans and specifications shall be brought to theArchitect's attention no later than five (5) days prior to the bid date. Otherwise, theContractor shall be responsible for any and all changes and additions that may benecessary to accommodate his particular apparatus or equipment.

1,03 CHANGES

Any changes from the plans necessary to make this work conform to the buiiding as it isconstructed, to make this work fit the work of other trades or to make this work conform tothe rules of city and municipa• bodies having jurisdiction shall be made by this contractor

Section - 23 00 01 - Basic HVAC Requirements -

at no additional cost to the Owner, However, no changes shall be made from the workdescribed on the plans and these specifications except on written order from theArchitect.

If any changes are required other than those mentioned above and the changes involveextra work on the part of the Contractor, no charges for this extra work shall be allowedunless authorized in advance of the work by a written order from the Owner and/orArchitect stating the charges to be made for the work.

Proposed use of item or equipment other than that specified or indicated may requireredesign of structure, partitions, foundations, piping, wiring, or other pars of mechanical,electrical, or architectural layout. Redesicln, new drawinCls, and detailing required shall beprepared and submitted to Architect/Enqineer for approval.

Where approved deviation requires different quantity, size and arrangement of wiring,conduit, equipment, etc. from that specified or indicated, provide such items and all otheradditional equipment required by system at not additional cost to the Owner.

1.04 PREqNSTALLATION MEETINGS

A. Section 01 30 00 -Administration Requirements: Pre-lnstallation Meetings.

B. Convene minimum one week prior to commencing work, when required

1.05 PROTECTION

All work, equipment and materials shall be protected at all time to prevent damage orbreakage either in transit, storage, installation or testing. All openings shall be closed withcaps or plugs during installation.

All material and equipment shall be covered and protected against dirt, water, chemicals,and mechanical injury. Failure on the part of the Contractor to provide adequateprotection will be cause for rejection of the unprotected equipment and materials. Inparticular, ductwork insulation which becomes saturated will be rejected and must beremoved from the job.

1.06 EXISTING FACILITIES

All piping, valves, fittings, switches, starters, conduit boxes and/or any other items ofmechanical or electrical equipment which are not in service at the completion of thiscontract shall be removed.

Where an existing service to existing building requires disconnection to facilitateinstallation of this work, this Contractor shall include in his bid the cost of such

disconnecting, re-routing and re-connecting. Where any existing facilities which are toremain occupied are affected by disconnection, re-routing or re-connection, then suchdisconnecting, re-connecting and re-routing shall be done in such a manner so as not tointerrupt any service to the building, including but not limited to, sanitary sewer, domesticwater, fire protection, alarm, communications, natural gas, refrigerant piping and electricalpower. Satisfactory arrangements shall be made with local authorities and/or the variousutility companies involved.


The method of disconnecting, re-routing and re-connecting shall be as shown onthe Drawings, or if not shown on the drawings, subject to the approval of theArchitect and Owner.

Unless noted otherwise, all equipment and material indicated or specified to be removedshall become the property of the Owner and shall be removed from the site at thediscretion of the Owner.

This Contractor shall carefully coordinate work in end around existing services andequipment and adjoining rooms to remodel areas. Coordinate shut-down, removal,capping, and turn-on of existing services with the facilities' engineering department andgeneral contractor to provide continuous (uninterrupted) service throughout theconstruction period. This Contractor shall refer to the architectural plans endspecifications and thoroughly familiarize himself with the construction phasing in remodelareas before beginning work.

1.07 ACCESSPANELS

All valves, traps, drains, cleanouts, etc., must be accessible. The Contractor shall,wherever required to service his installation, coordinate size and location of accesspanels with General Contractor. Refer to Section 08 31 13 - Access Doors and Frames.

1.08 SUBSTITUTIONS

The materials, products and equipment described and specified establish a standard ofquality, function, dimension and appearance to be met by any proposed substitutions.

B Reference Section 0t 60 00 - Product Requirements.

t•09 SUBMITTALS

A. Submit under provisions of Section 01 33 00,

The Contractor shall furnish copies of the manufacturer's literature and drawingsdescribing all proposed equipment and materials indicated in the specifications. Theproposed use of the exact equipment and materials specified shall not change thisrequirement of including literature describing the proposed equipment. Manufactureditems proposed for use, whether specified or proposed for substitution, shall be thecurrent, catalogued product of the manufacturer, and replacement parts shall beavailable.

Manufacturer's regular catalog sheets will not be acceptable under this requirementunless they indicate completely all of the specification requirements and submittal pagelabeling criteria stated above. Where drawings cover several sizes or types ofconstruction they shall clearly indicate the size or type of construction to be used on theproject. In cases where several sizes of the same type of equipment are required to befurnished, the submittal shall include a schedule identifying each piece of equipment,

complete with all capacity information needed to compare every submitted item with itsrespective specified item.

Brochures shall contain a certification that the equipment or materials are suitable for

conditions shown and specified; that the equipment or materials are believed to be inconformity with the plans and specifications, except as may be specifically described andthat approval is recommended. The certification shall be signed by the Contractor.


Brochures received not in conformity with these requirements will be returned for required

actions, if•ca•io•s a aii be ¢•adv n•tedand marked for the Engineer's consideration:

Approva1 of the brochures, or any par of the contents therein, shall not eliminateresponsibility for compliance with the plans and specifications, unless specific attentionhas been called in writing to proposed deviations at the time of transmittal of thebrochures and such deviations have been approved, nor shall it eliminate the

requirements or the responsibilities, if there are errors of any sort in the data submitted.

1.10 •NTERFERENCES AND COOPERATION

The plans are generally diagrammatic and the Contractor shall coordinate the work of thedifferent trades so that interferences between piping, equipment, structural andarchitectural work will be avoided. Not all offsets in piping, ductwork, etc., are shown• TheContractor shall cooperate with the General Contractor and all other contractors tocoordinate their work to avoid interferences and delays and arrange all parts of the work

to harmonize in sen,ice and appearance with all other parts.

The General Contractor shall coordinate the work of all trades. The various systems to beinstalled shall follow the normal, common sense priority of systems installation with the

highest system to lowest system installation as follows:

HVAC ductwork shall be installed up and against building (fioodroof) structuralmembers.

Sanitary waste and storm drainage piping system shall begin horizontal routing ashigh as possible between structural members, offsetting vertically only to avoidconflict with structure or to drop below HVAC ductwork where offset isunavoidable.

Electrical conduit shall be installed up, and against building structure, running

paraltel with HVAC ductwork and offsetting up into structural bay (void) or belowHVAC ductwork to obtain a change in direction or branch take-off. Electricalconduit installation shall not control or dictate the routing or installation of theHVAC ductwork.

HVAC heating and chilled water supply and return piping, domestic hot and coldwater supply and hot water circulating return piping, and medical gas piping shallbe installed beside and below the HVAC ductwork and electrical conduit,

Preferred installation shall be on trapeze, walt brackets, or racked on verticalchannel on the wall above the ceiling line, The completed installation shall notconflict with the installation or removal of ceiling system components of tile, Allmain-run and branch take-off isolation valves shall be readily identifiable and

accessible from a standing position on a step ladder.

Fire sprinkler piping system shall be installed below all other systems andcomponents. The fire sprinkler piping shall not conflict with the installation orremoval of ceiling system components or tile. The fire sprinkler system pipinglayout and installation shall be coordinated by the fire sprinkler contractor and theGeneral Contractor with all other trades performing work in the affected area, toavoid conflict with the installation or removal of any other systems components, or

to prevent ready access to valves, equipment of the other trades. Do not installsprinkler piping until ductwork mains are in place.

Section - 23 00 0I - Basic HVAC Requirements -

C. Refer to Section 01 30 00 for required overhead coordination drawing submittals, ifrequired.

1.11 CUTTING AND PATCHING

1=12

All cutting and patching of floors, walls and ceilings for installation of work covered inthese sections will be done by the General Contractor.

Where it becomes necessary to drill into or cut through any existing or completed floors,wails or ceilings to permit the installation of any work under this contract or to repair anydefects that may appear up to the expiration of the guarantee, such cutting and patchingshall be done by the General Contractor under the supervision of the Architect.

No joists, beams, girders or columns shall be cut without first obtaining written permissionfrom the Architect.

All driliing for expansion bolts, hangers and other supports shall be done subject to beapproval of the Architect, Labor and materials required to re#ace or rebuild parts orinjured portions shall be furnished at the Contractor's expense, subject to the satisfactionof the Architect.

PAiNTiNG

A Surfaces to be painted and types of paint shall be as specified in the Architecturalspecifications,

All surfaces to be painted shall be thoroughly cleaned, all rust scraped off and all oil andgrease removed before any paint is applie&

Finishing paint coats shall not be applied until all the plastering or other structural buildingwork is completed. Cloths shall be spread where necessary to prevent drops of paint, oil,etc, from defacing walls, floors, etc., and the Contractor shall be held responsible for alldamage by neglect of such precautions, The finished conditions of the painting shall besubject to the approval of the Architect, who may require retouching or repainting ofsurfaces not properly finished.

MATERIALS AND WORKMANSHIP

1.14

All materials shall be new, of the quality specified and free of any defects. Manufacturer'snames are listed to establish a standard of quality and construction.

The Contractor will be responsible for transportation of his materials to the job and fortheir storage and protection until the final acceptance of the job.

Contractor shall furnish all necessary scaffolding, tackle, tools and appurtenances of allkinds and all labor required for the safe and expeditious execution of his contract.

UTILITIES

The Contractor shall arrange and pay for any necessary revisions to existing utilityservices, including meter deposits and connection fees to all serving utility companies andshall install utilities, where applicable.


1.15 PERMITS AND INSPECTIONS

The Contractor will be responsible for all permits and inspections required by law for thecompletion of his work, Cost of all permits and inspections shall be paid for by theContractor. The Contractor shall obtain and pay for all certificates of approval which mustbe delivered to the Architect before final acceptance of the job. All materials and laborfurnished by the Contractor shall be in strict accordance with the rules and requirementsof the National Board of Fire Underwriters, state and municipal regulations and other

authorities who may have lawful jurisdiction over the work being done. One (1) copy of allpermits obtained under this contract and all inspections performed and/or certificates ofacceptances, approval or beneficial occupancy received for this work, shall be forwardedto the Engineer,

Each contractor shall be responsible for coordinating their work with the GeneralContractor and scheduling progress inspections through the General Contractor to allowfor the following inspections to be performed without impeding the progress ofconstruction. Generally the Contractor shall plan for inspections to occur two (2) weeksprior to the scheduled concealment of work in the area of inspection,

C. The minimum inspections required for this project shall include but not be limited to:

Rough Wall: All utilities, services and systems in-place including wall studs, crossbracing, supports, etc. (No sheetrock or insulation).

Corrected Rough Wall: (Before Sheetrock)

Above Ceilin.q: All utilities, services and systems in place, labeling on exposedpiping (No insulation on piping systems. Ceiling grid/channels may be installedbut no sheetrock or ceiling tile).

Above Ceilin¢l Final: All utilities, services and systems complete including

hangers, insulation, and labeling (ceiling grid and/or channel may be in place butno sheetrock or ceiling tile shall be installed).

Substantial Completion: All surfaces complete, fixtures installed and trim-outcomplete.

Final: Cleaned and ready for occupancy

1.16 EXAMINATION OF SiTE

All Contractors submitting proposals for this work shall first examine the site andconditions thereon and therein. All proposals shall take into consideration conditions asmay affect the work under this contract. They shall satisfy themselves as to existinggrades and the actual formation, and soil conditions,

They shall verify all service locations, depths, sizes, etc, No information given on theplans shall relieve the Contractor of this responsibility.

ESCUTCHEONS AND PLATES


Where pipes pass through ceilings or walls in finished spaces, install sectional plates orescutcheons to cover the annular opening between pipe and sleeve. Solid plates with setscrews shall be used where the sectional plates will not stay in place or are not availablein the required size, or where other individua• specification section(s) require one piece orgreater quality escutcheons or plates,

Inside diameter of escutcheons shall fit around insulation and around pipe when not

insulated; outside diameter shall cover sleeve. Secure escutcheons or plates to pipe orsleeve but not to insulation. All escutcheons shall be triple nickel-chromium plated brass,

or type 316L stainless steel.

1.18 FIRESTOPPING

Firestopping: Unused slots, sleeves and other penetrations in floors, wails or othergeneral construction shall be closed end sealed with an approved firestopping material.

Reference Section 07 84 00 - Firestopp[ng for appropriate firestopping materia]required for each wall rating and penetration size and type.

Floor slots and openings shall be closed with 16 gauge galvanized steel sheetsupported on t-inch by lqnch by 1/84nch structural angle drilled or supportedwith powder-driven studs into the building structure. Firestop with a layer ofsilicone elastomer not less than 1-inch thick which completely fills the opening.

The top surface of the silicone elastomer shall be approximately l-inch below thefinished floor slab.

Openings in wails sha;1 be closed with 16 gauge galvanized steel sheet securelyattached at the midpoint of the wall thickness and firestopped on both sides of thesteel sheet with not less than 1/8-inch thick layer of non-sagging silicone

elastomer to fully cover the opening.

4= Single or multiple pipes passing through walls and floors shall have the annularspace between pipes or between pipes and structure filled with silicone elastomerto provide a 3-hour rated firestop for floors and walls.

Pipe and Ducts: The annulus between exposed pipe and duct'work and walls or floors.finished spaces shall be refilled, sealed and painted to match adjacent surfaces.

1.20 QUALITY ASSURANCE

Perform Work in accordance with the 2009 international Building, Mechanical end

Plumbing Codes, the local authority having jurisdiction, and the Architect/Engineer, Asthe minimum standard for the level of quality, in all cases the greater quantity or betterquality shall be the first consideration for the basis of an acceptable product or process.The local authority having jurisdiction, the Architect and the Engineer shall have the finalauthority on the approval and/or use of any product or process specified or submitted forsubstitution. The greater quality and/or value specified herein for the system(s) andvarious components and installation procedures shall take precedence over the minimumrequirements of the herein before mentioned codes or that of NFPA 13, NFPA 14, orNFPA 24 in all instances.

B. Equipment and Components: Bear UL and FM label or marking,

C, Welding Materials and Procedures: Perform to ASME Code

Section - 23 00 0'l - Basic HVAC Requirements -

1.21

1.22

Valves: Bear UL/FM label or marking. Provide manufacturer's name and pressure ratingmarked on valve body.

Piping: All piping installed on this project shall bear the complete ASTM andManufacturer's marking. Labeling and identification requirements as required by ASTM.All installed piping 3'-0" or greater in length shall be readily identifiable per ASTM labelingcriteria. Piping not bearing this identification upon installation shall be removed andreplaced by the correctly labeled piping. Piping shall not be re-stenciled after it is installed,to meet this requirement.

CONTROLS

Where "automatic controls" are called for in the sections of this division, the control

instruments, such as motorized valves, etc., shall be installed by the Contractor furnishingthe controls, and all wiring and conduit necessary shall be furnished and installed by theTemperature Controls Contractor. Any 1t0 volt wiring required for the temperature

controls not shown on the electrical drawings, shall be provided by the temperaturecontrols contractor.

UNIONS

No unions are to be placed in any pipe in a location which will be concealed orinaccessible after completion of the building unless furnished with an access panel eitheras shown on the drawings or as specified herein. Unions must be installed on each sideof all pieces of equipment such as heating units, pumps, etc., so that such equipmentmay be readily disconnected.

1.23 INSULATION

All insulation work, as specified hereinafter in the various sections, shall be performed bycontractors who principle form of endeavor is in the insulation application business. Theymust have been actively engaged in this line of work as a contractor for a period of notless than three years prior to the bid date of this project. All insulation materials used onthis project, including finishes and adhesives on the exterior surfaces of ducts, pipes andequipment shall have a flame spread rating of 25 or •ees and a smoke developed rating of50 or less as determined by an independent testing laboratory in accordance with NFPA255-1972 as required by NFPA 90A.

1.24 TEMPERATURE AND PRESSURE TEST PLUG

Provide test plugs on the entering and leaving side of each coil or heating or coolingapparatus or equipment added or installed under this contract and as detailed.

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

Not Used

END OF SECTION


SECTION 23 05 '13

COMMON MOTOR REQUIREMENTS FOR HVAC EQUIPMENT

PART

I

'• .02

1,03

GENERAL

SUMMARY

A. Section includes single- and three-phase motors for application on equipment providedunder other sections [and for motors furnished loose to Project],

B. Related Sections:

1. Section 26 05 2(} - Grounding and Bonding for Electrical Systems.

2. Section 26 05 53 - Identification for Electrical Systems,

3. Section 28 29 13 = Enclosed Controllers and Section 26 29 23 = Enclosed Circuit

Breaker&

REFERENCES

A,

SUBMITTALS

A

American Bearing Manufacturers Association:

1, ABMA 9 - Load Ratings and Fatigue Life for Ball Bearings.

National Electrical Manufacturers Association:

1, NEMA MG 'l - 1993, Motors and Generators.

2, NEMA MG10-t994, Energy Management Guide for Selection and Use ofPolyphase Motors.

International Electrical Testing Association:

1, NETA ATS - Acceptance Testing Specifications for Electrical Power DistributionEquipment and Systems,

National Fire Protection Association

1. NFPA-70-1996, National Electric Code.

Underwriter's Laboratories

1. UL 674-1994, Electric Motors and Generators for use in Division 01 Hazardous(Classified) Locations.

U L 1004-1994, Electric Motors.

Section 01 33 00 - Submittal Procedures: Submittal procedures,

Product Data: Submit catalog data for each motor furnished loose, indicate nameplatedata, standard compliance, electrical ratings and characteristics, and physical

Section 23 05 13 - Common Motor Requirements for HVAC Equipment- Page 1

dimensions, weights, mechanical performance data, and support points,

,04 QUALIFICATIONS

A. Manufacturer: Company specializing in manufacturing products specified in this sectionwith minimum ten years documented experience.

B. Testing Agency: Company specializing in testing products specified in this section withminimum ten years documented experience.

.05 DEUVERY, STORAGE, AND HANDLING

A. Section 0t 60 00 - Product Requirements: Product storage and handling requirements.

1,06

F.

G.

H.

PART 2

201

B. Lift only with lugs provided. Handle carefully to avoid damage to components, enclosure,and finish.

C. Protect products from weather and moisture by covering with plastic or canvas and bymaintaining heating within enclosure.

D. For extended outdoor storage, remove motors from equipment and store separately.

ACCEPTABLE MANUFACTURERS

A, ABB.

B, Baldon

C, General Electric

D, MAGNETEK.

Reliance.

Square D.

Toshiba.

US Electric Motors.

PRODUCTS

PRODUCT REQUIREMENTS FOR MOTORS

A Alternating current, fractional and integral horsepower motors: NEMA Publication MG1and MG2 shall apply. NEMA MG10 shall apply for energy management selection ofpolyphase motors. Motors controlled by a variable frequency drive shall meet therequirements of NEMA MG1, Part 31.40.4,2.

B. Single phase voltage ratings:

1. Motors connected to 120 volt systems: 115 volts,

2. Motors connected to 208 volt systems: 200 volts.


3. Motors connected to 240 volt systems: 230/460 volts dual connection.

Three phase voltage ratings:

1. Motors connected to 208 volt systems: 200 volts.

2. Motors, less than 100 HP, connected to 240 volt or 480 volt systems: 230-460volts, dual connection.

3. Motors, 100 HP or larger, connected to 240 volt systems: 230 volts.

4. Motors, 100 HO or larger, connected to 4801 volt systems: 460 volts.

Motors shall be equipped with pre-lubricated steel ball or roller bearings with a ratedfatigue life of L-10 200,000 hours.

Bearings in motors controlled by variable frequency drives shall be guaranteed againstpremature bearing failure caused by discharge current.

Motor insulation shall be NEMA Design B for standard duty motors. Severe duty motorsshall have Class F insulation. Temperature rise will be in accordance with NEMA limitsfor class of insulation, service factor, and enclosure specified. Unless otherwise noted,motors shall be operated for 40 degrees C ambient temperature. Motors scheduled foruse with a variable frequency drive shall have spike resistant windings and shall be ratedfor inverter duty.

Motor enclosures shall be open drip-proof construction, except where exposed toweather where they hall be splash-proof with rodent screens. Where adverse vapors ordust Conditions prevail, enclosures shall be totally-enclosed, or totally-enclosed fancooled. In explosive atmospheres, explosion-proof fan-cooled enclosures with non-sparkfans shall be provided. Motor frames shall be of heavy-duty construction using steel,aluminum or cast iron. End brackets shall be of cast iron or aluminum construction.

Aluminum must have steel inserts in bearing cavity. Severe duty motors shall be castiron construction {frame, end brackets and terminal box) and have external hardwareincluding fan and fan cover plated to prevent corrosion or be of corrosion resistantmaterial. The air gap surfaces shall be coated with epoxy or zinc chromate to resistcorrosion.

Polyphase motors shall be EPACT 1992 compliant squirrel cage design with NEMADesign B or NEMA Design E locked-rotor, break-down and pull-out torque as standardunless otherwise specified. For heavy inertia loads, provide motors having design torquecharacteristic& Motors shall have minimum service factor of 1.'15.

Motors will have a power factor rating at full load and rated voltage of at least 90 percent.If a motor draws less than 1000 watts at full load, it is excluded from the 90 percent P.F.

requirement.

Section 23 05 13 - Common Motor Requirements for HVAC Equipment - Page 3

J. The minimum full load efficiency (P.F. x Eff,) shall meet or exceed values below:

Motor

Horse

Power

1

1.5

5

10

15

25

30

40

50

60

6

Pole

i 50.O

Nominal FulPLaad Efficiency_)en Motors

4 2

Pole PO8Z3

64.0 84.0

855 94.0 84.0

86.5 88,5 94,0

•7:• 87.5 85,588,5 88.5 87.590.2 89.5 88•

90.....2 91.0 89,591.0 91.0 90.291.7 91.7 91,0

92:4 92.4 91.O

Enclosed Motors

931Q 93.0 91,7

93.0 93.0 92.4

6 4 2

PoI....•........ Pol_........_•.... Pole8,0 82.6 75,5

85.5 84.0 82.5

86,5 84.0 84,0

87,5 87.5 85.5

8.5 87,5 875

90.2 ,• 91.0 J 90:290.2 :i 91,0 90.291.7 91.092,491.7 92.4 91.0

9310 9t.7

93,6 93.6 93.0 93.6 93.5 93.0

75 93.6 94,1 9310 93.6 94/1 93.0

100 94,1 94/1 93.0 94.1 94.5 93,6125 94,1 94,5 93.6 94:1 94.5 94.5

150 94,5 95,0 93.6 95.0 95.0 94.5200 94.5 95.0 94.5 95,0 95.0 95,0

2.02 SOURCE QUALITY CONTROL

Test motors in accordance with NEMA MG 1, including winding resistance, no-loadspeed and current, locked rotor current, insulation high-potential test, end mechanicalalignment tests,

PART 3 EXECUTION

3.01 INSTALLATION

A, Install securely on firm foundation. Mount ball bearing motors with shaft in any position.

8, Install in accordance with manufacturer's instructions.

C, Ground and bond motors in accordance w;th Section 28 05 26,

3.02 FIELD QUALITY CONTROL

A. Section 01 40 00 - Quality Requirements, 01 70 00 - Execution and CloseoutRequirements: Field inspecting, testing, adjusting, and balancing.


Perform inspections and tests listed in NETA ATS, Section 7,15.

END OF SECTION


SECTION 23 05 29

HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT

PART

1

1.02

GENERAL

SUMMARY

A, Section Includes:

1. Pipe hangers and supports.

2. Hanger rods.

3. Inserts.

4. Flashing,

5. Sleeves.

8. Mechanical sleeve seals,

7. Formed steel channel,

8. Equipment bases and supports.


2,

3.

4.

5,

6.

7.

8.

REFERENCES

A

Section 03 10 00 - Concrete Forming and Accessories: Execution requirementsfor placement of [inserts] [sleeves] in concrete forms specified by this section.

Section 033000 Castqn-Place Concrete: Execution requirements forplacement of concrete housekeeping pads specified by this section.

Section 07 84 00 - Firestopping: Product requirements for firestopping forplacement by this section.

Section 07 90 00 - Joint Protection: Product requirements for sealant materialsfor placement by this section,

Section 09 90 00 - Painting and Coating: Product and execution requirements forpainting specified by this section.

Section 23 05 48 - Vibration for HVAC Piping and Equipment: Product andexecution requirements for vibration isolators.

Section 23 2"• 13 - Hydronic Piping: Execution requirements for placement ofhangers and supports specified by this section.

Section 23 23 00 - Referigerant Piping: Execution requirements for placement ofhangers and supports specified by this section.

American Society of Mechanical Engineers:

Section 23 05 29 - Hangers and Supports for HVAC Piping and Equipment - Page 1

ASME B31.1 - Power Piping.

ASME B31,5 - Refrigeration Piping,

ASME 831,9 - Building Services Piping,

B, ASTM international:

1. ASTM E84 - Test Method for Surface Burning Charecterietics of BuildingMateria;s.

2, ASTM E1 lg - Method for Fire Tests of Building Construction and Materials,

3, ASTM E8"14 - Test Method of Fire Tests of Through Penetration Firestops.

4, ASTM F708 - Standard Practice for Design and Installation of Rigid PipeHangers.

5. ASTM E1966 - Standard Test Method for Fire-Resistive Joint Systems.

C American Welding Society:

1. AWS D1.1 - Structural Welding Code - Steel.

D• FM Global:

ft. FM - Approval Guide, A Guide to Equipment, Materials & Services Approved ByFactory Mutual Research for Property Conservation.

E. Manufacturers Standardization Society of the Valve and Fittings Industry:

1. MSS SP 58 - Pipe Hangers and Supports - Materials, Design and Manufacturer.

2. MSS SP 69 - Pipe Hangers and Supports - Selection and Application.

3. MSS SP 89 - Pipe Hangers and Supports - Fabrication end installationPractices,

F, Underwriters Laboratories Inc.:

1. UL 263 - Fire Tests of Building Construction and Mater;sis.

2. UL 723 - Tests for Surface Burning Characteristics of Building Materials.

3. UL '• 479 - Fire Tests of Through-Penetration Firestops.

4. UL 2079 - Tests for Fire Resistance of Building Joint Systems,

5. UL - Fire Resistance Directory.

G, lntertek Testing Services (Wamock Hersey Listed):

"I. WH - Certification Listings.

1.03 DEFINmONS

Section 23 05 29 - Hangers and Supports for HVAC Piping and Equipment- Page 2

A. Firestopping (Through-Penetration Protection System): Sealing or stuffing material orassembly placed in spaces between and penetrations through building materials to arrestmovement of fire, smoke, heat, and hot gases through fire rated construction.

1.04 SUBMITTALS

A. Section 01 33 00 - Submittal Procedures: Submittal procedures.

B. Shop Drawings: Indicate system layout with location including critical dimensions, sizes,and pipe hanger and support locations and detail of trapeze hangers.

C• Product Data;

1 Hangers and Supports: Submit manufacturer's catalog data including loadcapacity,

D Design Data: Indicate load carrying capacity of trapeze, multiple pipe, and riser supporth•ngers, •ndicate calculations used to determine load carrying capacity of trapeze,multiple pipe, and riser support hangers,

E. Manufacturer's •nstallation Instructions

1. Hangers and Supports: Submit specie; procedures and assembly of components,

F. Manufacturer's Certificate: Certify products meet or exceed specified requirements.

1.05 QUALIFICATIONS

A, Manufacturer: Company specializing in manufacturing Products specified in this sectionwith minimum three years documented experience.

B. Installer: Company specializing in performing Work of this section with minimum 3 yearsdocumented experience.

1.06 DELIVERY, STORAGE AND HANDLING

A. Section 01 60 00 - Product Requirements: Requirements for transporting, handling,storing, and protecting products.

B Accept materials on site in original factory packaging, labeled with manufacturer'sidentification.

C, Protect from weather and construction traffic, dirt, water, chemical, and damage, bystoring in original packaging.

1.07 ENVIRONMENTAL REQUIREMENTS

A. Section 01 60 00 - Product Requirements: Environmental conditions affecting productson s•te.

'1.08 FIELD MEASUREMENTS

A. Verify field measurements prior to fabrication.

1.09 WARRANTY


A, Section 01 70 00 - Execution and CIoseout Requirements: Product warranties andproduct bonds.

PART

2.01

PRODUCTS

PiPE HANGERS AND SUPPORTS

A, Hydronic Piping:

1, Conform to ASME B31.9, ASTM F708, MSS SP58, MSS SP69, MSS SP89.

2. Hangers for Pipe Sizes 1/2 to 1-1/2 inch: Carbon steel, adjustable swivel, splitring,

3 Hangers for Cold Pipe Sizes 2 inches and Larger: Carbon steel, edjustable,clevis.

4 Hangers for Hot Pipe Sizes 2 to 4 inches: Carbon steel, adjustable, clevis.

5 Hangers for Hot Pipe Sizes 6 inches and Larger: Adjustable steel yoke, cast ironroll, double hanger,

6 Multiple or Trapeze Hangers: Steel channels with welded spacers and hangerrods,

7 Multiple or Trapeze Hangers for Hot Pipe Sizes 8 inches and Larger: Steelchannels with welded spacers and hanger rods, cast iron roll

8. Wall Support for Pipe Sizes 3 inches and Smaller: Cast iron hooks.

9. Wall Support for Pipe Sizes 4 inches and Larger: Welded steel bracket andwrought steel clamp,

10. Wall Support for Hot Pipe Sizes 6 inches and Larger: Welded steel bracket andwrought steel clamp with adjustable steel yoke and cast iron roll

1 I. Vertical Support: Steel riser clamp.

12, Floor Support for Cold Pipe: Cast iron adjustable pipe saddle, lock nut, nipple,floor flange, and concrete pier or steel support.

13. Floor Support for Hot Pipe Sizes 4 inches and Smaller: Cast iron adjustable pipesaddle, lock nut, nipple, floor flange, and concrete pier or steel support.

14. Floor Support for Hot Pipe Sizes 6 inches and Larger: Adjustable cast iron rolland stand, steel screws, end concrete pier or steel support,

15. Copper Pipe Support: Copper-plated, carbon steel ring.

Refrigerant and Condensate Drain Piping:

1, Conform to ASME B31.5, ASTM F708, MSS SP58, MSS 8P69 and MSS SP89,

Section 23 05 29 - Hangers and Supports for HVAC Piping and Equipment- Page 4

Hangers for Pipe Sizes 1/2 to 1-1;2 inch: Carbon steel, adjustable swivel, splitring.

Hangers for Pipe Sizes 2 inches and Larger: Carbon steel, adjustable, clevis.

Multiple or Trapeze Hangers: Steel channels with welded spacers and hangerrods. With e•ectro-galvanized or stainless steel clamps with thermoplasticelastomer cushion similar to Unistrut's Cush-A-Clamp.

Wall Support: Steel channels with electro-galvanized clamps. At un-insulatadpiping provide clamp with a thermoplastic elastomer cushion insert similar toUnistrut's Cush-A-Clamp

Vertical Support: Steel riser clamp.

Floor Support: Steel channels with electro-galvanized clamps. At un-insulatedpiping provide clamp with a thermoplastic elastomer cushion insert similar toUnistrut's Cush-A-Ctamp

Copper Pipe Support: Copper-plated carbon-steel ring

2,02 ACCESSORIES

A Hanger Rods: Mild steel threaded both ends, threaded on one end, or continuousthreaded.

2.03 iNSERTS

A. Inserts: Malleable iron case of galvanized steel shell and expander plug for threadedconnection with lateral adjustment, top slot for reinforcing rods, lugs for attaching toforms; size inserts to suit threaded hanger rods.

2,04 FLASHING

A, Metal Flashing: 28 gage thick ga;vanized steel.

B, Metal Countarflashing: 22 gage thick galvanized steel.

C. Lead Flashing:

1. Waterproofing: 5 IbJsq, ff sheet lead.

2. Soundproofing: 1 IbJsq ft sheet •ead.

D. Flexible Flashing: 47 rail thick sheet butyl; compatible with roofing.

E. Caps: Steel, 22 gage minimum; 16 gage at fira resistant elements,

2.05 SLEEVES

A. Sleeves for Pipes Through Non-Fire-Rated Floors: 18-gage thick galvanized steel.

B. Sleeves for Pipes Through Non-Fire-Rated Beams, Walls, Footings and Potentially WetFloors: Steel pipe or 18-gage thick galvanized steel.


C. Sleeves for Round Ductwork: Galvanized steel.

D. Sleeves for Rectangular Ductwork: Galvanized steel.

Sealant: Refer to Section 07 90 00.

2.06 MECHANICAL SLEEVE SEALS

Product Description: Modular mechanical type, consisting of interlocking synthetic rubberlinks shaped to continuously fill annular space between object and sleeve, connectedwith bolts and pressure plates causing rubber sealing elements to expand whentightened, providing watertight seal and electrical insulation.

2.07 FORMED STEEL CHANNEL

A. Product Description: Galvanized 12 gage thick steel With holes 1-1;2 inches on center.

PART 3

3.01

EXECUTION

EXAMINATION

A. Section 01 30 00 - Administrative Requirements: Verification of existing conditions beforestarting work.

B. Verify openings are ready to receive sleeves.

3.02 PREPARATION

A. Do not drill or cut structural members.

3.03 INSTALLATION - INSERTS

A Install inserts for placement in concrete form&

B. Install inserts for suspending hangers from reinforced concrete slabs and sides ofreinforced concrete beams.

C. Provide hooked rod to concrete reinforcement section for inserts carrying pipe 4 inches

and larger.

D. Where concrete slabs form finished ceiling, locate inserts flush with slab surface.

E. Where inserts are omitted, drill through concrete slab from below and provide through-bolt with recessed square steel plate and nut recessed into and grouted flush with slab.

3.04 INSTALLATION - PIPE HANGERS AND SUPPORTS

A. Install in accordance with ASME 831.1, ASME B31.5, ASME 31.9, ASTM F708,

MSS SP 58, MSS SP 69 and MSS SP 89.

B. Support horizontal piping as scheduled.

C. •nstall hangers with minimum t;2 inch space between finished covering and adjacent


3.05

3.06

3.07

E.

F,

G

work.

Place hangers within 12 inches of each horizontal elbow

Use hangers with 1-1/2 inch minimum vertica• adjustmenL

Support vertical piping at every floor.

Where piping is installed in parallel and at same elevation, provide multiple pips ortrapeze hangsrs.

Support riser piping independently of connected horizontal piping,

Provide copper plated hangers and supports for coppsr piping.

Design hangers for pipe movement without disengagement of supported pipe,

Prime coat expossd steel hangsrs and supports. Rsfer to Section 09 90 00, Hangers andsupports located in crawl spaces, pipe shafts, and suspsndsd ceiling spaces are notconsidered exposed.

L. Provide clearance in hangers and from structure and other equipment for installation ofinsulation.

INSTALLATION - EQUIPMENT BASES AND SUPPORTS

Provide housekeeping pads of concrete, minimum 3-1/2 inches thick and extending 8inches beyond supported equipment. Refer to Section 03 30 00,

Using templates furnished with equipment, install anchor bolts, and accessories formounting and anchoring equipment.

Construct supports of steel members or formed steel channel, Brace and fasten withflanges bolted to structure,

D, Provide rigid anchors for pipes after vibration isolation components are installed.

INSTALLATION - FLASHING

A, Provide flexible flashing and metal Counterflashing where piping and ductwork penetrateweather or waterproofed walls, floors, and roofs.

B, Provide acoustical lead flashing around ducts and pipes penetrating equipment rooms forsound control.

C. Provide curbs for roof installations 14 inches minimum high above roofing surface, Flash

and counter-flash with sheet metal; seal watertight. Attach Counteff•ashing to equipmentand lap base flashing on roof curbs, Flatten and solder joints.

D, Adjust storm collars tight to pipe with bolts; caulk around top edge, Use storm collarsabove roof jacks. Screw vertical flange section to face of curb.

INSTALLATION - SLEEVES

A. Exterior watertight entries: Seal with mechanical sleeve seals,


Set sleeves in position in forms. Provide reinforcing around sleeves,

Size sleeves large enough to allow for movement due to expansion and contraction.Provide for continuous insulation wrapping.

D. Extend sleeves through floors I inch above finished floor level. Caulk sleeves.

Where piping or ductwork penetrates floor, ceiling, or wall, close off space between pipeor duct and adjacent work with firestopping insulation and caulk airtight. Provide closefitting metal collar or escutcheon covers at both sides of penetration.

Install chrome plated steel escutcheons at finished surfaces.

3.08 INSTALLATION - HANGER RODS

A. Trim any excess at all hanger rods to within 1 inch of the fastener nut.

3.09 FIELD QUALITY CONTROL

Section 01 4000 - Quality Requirements. 01 7000 Execution and CloseoutRequirements: Field inspecting, testing, adjusting, and balancing.

B. Inspect installed firestopping for compliance with specifications and submitted schedule.

3.10 CLEANING

A. Section 01 70 00 - Execution and Closeout Requirements: Requirements for denning.

B. Clean adjacent surfaces of firestopping materials,

3.11 PROTECTION OF F•NISHED WORK

Section 01 70 00 - Execution and Closeout Requirements: Requirements for protectingfinished Work.

B. Protect adjacent surfaces from damage by material installation.

3.t2 SCHEDULES

A, Copper and Steel Pipe Hanger Spacing:

COPPER

PIPE SIZE TUBING

Inches •IAXIMUM

HANGER

SPACING

Feet

1/2 5

3/4 ' 5

6

1-1/4 7

1-1/2

2-1/2 (NOte 2)

STEEL PIPE

MAXIMUM

HANGER

SPACING

Feet

7

7

7

COPPER

TUBING

HANGER ROD

DIAMETER

inches

3/8 3/8

3/8 3/8

3/8 318

318 3/8

STEEL PIPE

HANGER ROD

DIAMETER

Inches

9 ........... ............... 1/210 i/2 1/2

Section 23 05 29 - Hangers and Supports for HVAC Piping and Equipment- Rage 8

5

14 1/2 5/8

18 1/2 5/8

17 3f46 14

8 16 19

10 18 22

12 19 23

14 i 22 25

18 i 23 27

18 25 28

20 ii 27 30

24 28 32

Plastic and Ductilelron Pipe Hanger Spacing:

5/8

3/4

3/4

3/4

7;8

7;8

1-1/4

3,•4

7/8

I

1

1-1/4

1-1/4

Note 1 : Refer to manufacturer's recommendations for grooved end piping systems.

Note 2:20 feet maximum spacing, minimum of one hanger for each pipe section close to

joint behind bell. Provide hanger at each change of direction and each branchconnection. For pipe sizes 6 inches and smaller, subjected to Ioadings other than weightof pipe and contents, limit span to maximum spacing for water service steel pipe.

END OF SECTION


SECTION 23 05 48

ViBRATiON CONTROLS FOR HVAC PiPiNG AND EQUIPMENT

PART

1

GENERAL

SUMMARY


1. Vibration isolators.

B, Related Sections:

1. Section 23 05 29 - Hangers and Supports for HVAC Piping and Equipment:Product requirements for pipe hangers and supports.

Section 23 05 93 - Testing, Adjusting, and Balancing for HVAC: Requirements forsound and vibration measurements performed independent of this section.

Section 23 33 00 - Air Duct Accessories: Product requirements for both solid andflexible duct connectors for duct silencers specified for placement by this section,

2

3.

REFERENCES

A. Air Movement and Control Association International, Inc.:

1. AMCA 300 = Reverberant Room Method for Sound Testing of Fans.

American National Standards Institute:

1= ANSi $1•4 = Sound Level Meters.

2= ANSI $1 •8 = Reference Quantities for Acoustical Levels.

3. ANSI $1,13 - Methods for the Measurement of Sound Pressure Levels in Air,

4. ANSI 812.38 - Suwey Methods for the Determination of Sound Power Levels ofNoise Sources,

Air-Conditioning and Refrigeration Institute:

1, ARI 575 - Method of Measuring Machinery Sound within Equipment Space,

American Society of Heating, Refrigerating and:

1. ASHRAE 68 - Laboratory Method of Testing lmDuct Sound Power MeasurementProcedure for Fans.

2. ASHRAE Handbook - HVAC Applications,

ASTM •nternational:

1, ASTM E90 - Standard Test Method for Laboratory Measurement of AirborneSound Transmission Loss of Building Partitions and Elements,

Section - 23 05 48 -Vibration Controls for HVAC Piping and Equipment- Page 1

2 ASTM E477 - Standard Test Method for Measuring Acoustical and AirflowPerformance of Duct Liner Materials and Prefabricated Silencers.

ASTM E596 - Standard Test Method for Laboratory Measurement of the NoiseReduction of Soundqsolating Enclosures.

F. Sheet Metal and Air Conditioning Contractors':

1. SMACNA - HVAC Duct Construction Standard - Metal and Flexible.

1.04 SUSMI•ALS

A, Section 01 33 00 - Submittal Procedures: Submitfal procedures.

Shop Drawings: Indicate and locate vibration isolators, with static and dynamic load oneach. Indicate assembly, materials, thickness, dimensional data, pressure losses,acoustical performance, layout, and connection details for sound attenuation productsfabricated for this project.

Product Data: Submit schedule of vibration isolator type with location and load on each.Submit catalog information indicating, materials, dimensional data, pressure losses, andacoustical performance for standard sound attenuation products.

Design Data: Submit calculations indicating maximum room sound levels are notexceeded.

Manufacturer's Installation Instructions: Submit special procedures and settin9dimensions. Indicate installation requirements maintaining integrity of sound isolation.

Manufacturer's Field Reports: Indicate sound isolation installation is complete and inaccordance with instructions.

1.05 CLOSEOUT SUBMITTALS

A. Section 0'I 70 00 - Execution and Closeout Requirements: Closeout procedures.

Project Record Documents: Record actual locations of hangers including attachmentpoints.

.06 QUALITY ASSURANCE

Perform Work in accordance with AMCA 300, ANSI 81.13, AR] 575, ANSI $12.36,standards and recommendations of ASHRAE 68.

1.07 QUAUFICATIONS

Manufacturer: Company specializing in manufacturing products specified in this sectionwith minimum three years experience.

Installer: Company specializing in performing Work of this section with minimum threeyears experience•

1.08 FIELD MEASUREMENTS


Section - 23 05 48 - Vibration Controls for HVAC Piping and Equipment - Page 2

1.09 WARRANTY

A Section 0'1 70 00 - Execution and C{oseout Requirements: Product warranties andproduct bonds.

PART 2

2.01

2.02

PRODOCT$

INERTIA BASES

A. Structural Sases - Type "1 :

1. Design: Sufficiently rigid to prevent misa]ignment or undue stress on machine,and to transmit design loads to isolators and snubbers.

2 Construction: Welded structural steel with gusset brackets, supporting equipmentand motor with motor slide rails.

8. Concrete Inertia Bases - Type 2:

'1. Mess: Minimum of 1.5 times weight of isolated equipment,

2. Construction: Structured steel channel perimeter frame, with gusset brackets andanchor bolts, adequately reinforced, concrete filled.

3. Connecting Point: Reinforced to connect isolators and snubbers to base.

4. Concrete: Reinforced 3,000 psi concrete.

VIBRATION ISOLATORS

A. Open Spring Isolators - Type A:

1. Spring •solators:

a. For Exterior and Humid Areas: Furnish hot dipped galvanized housingsand neoprene coated springs.

b. Code: Color code springs for load carrying capacity,

2 Springs: Minimum horizontal stiffness equal to 75 percent ve•ical stiffness, withworking deflection between 0.3 and 0.8 of maximum deflection.

3. Spring Mounts: Furnish with leveling devices, minimum 0.25 inch thick neoprenesound pads, and zinc chromate plated hardware,

4 Sound Pads: Size for minimum deflection of 0.05 inch; meet requirements for

neoprene pad isolators.

B. Restrained Spring Isolators - Type B

'1. Spring Isolators:

& For Exterior and Humid Areas: Furnish hot dipped galvanized housings

and neoprene coated spring&b. Code: Color code springs for load carrying capacity.

Section - 23 05 48 - V!bration Contro!e for HVAC Pipng and Equipment - Page 3

2. Springs: Minimum horizontal stiffness equal to 75 percent vertical stiffness, withworking deflection between 0.3 and 0,6 of maximum deflection,

3. Spring Mounts: Furnish with leveling devices, minimum 0,25 inch thick neoprenesound pads, and zinc chromate plated hardware.

4. Sound Pads: Size for minimum deflection of 0,05 inch; meet requirements forneoprene pad isolators.

5. Restraint: Furnish mounting frame and limit stops

Closed Spring Isolators - Type C:

I. Spring Isolators:

a For Exterior and Humid Areas: Furnish hot dipped galvanized housings

and neoprene coated springs,b, Code: Color code springs for load carrying capacity,

2 Type: Closed spring mount with top and bottom housing separated withneoprene rubber stabilizers.

3 Springs: Minimum horizontal stiffness equal to 75 percent vertical stiffness, withworking deflection between 0.3 and 0.6 of maximum deflection.

4. Housings: Incorporate neoprene isolation pad meeting requirements forneoprene pad isolators, and neoprene side stabilizers with minimum 0,25 inchclearance.

Restrained Closed Spring Isolators - Type D:

1. Spring

a, For Exterior and Humid Areas: Furnish hot dipped galvanized housingsand neoprene coated springs.

b Code: Color code springs for load carrying capacity.

2 Type: Closed spring mount with top and bottom housing separated withneoprene rubber stabilizers.

3 Springs: Minimum horizontal stiffness equal to 75 percent vertical stiffness, withworking deflection between 0,3 and 0.6 of maximum deflection,

4. Housings: Incorporate neoprene isolation pad meeting requirements forneoprene pad isolators, and neoprene aide stabilizers with minimum &25 inchclearance and limit stops,

Spring Hanger - Type E:

t. Spring Isolators:

a. For Exterior and Humid Areas: Furnish hot dipped galvanized housingsand neoprene coated springs,

b. Code: Color code springs for load carrying capacity,

Section - 23 05 48 - Vibration Controls for HVAC P!ping and Equipment - Page 4

PART 3

Springs: Minimum horizontal stiffness equal to 75 percent vertical stiffness, withworking deflection between 03 and 0.6 of maximum deflection.

3, Housings: Incorporate neoprene isolation pad meetingneoprene pad isolator&

4. Misalignment: Capable of 20 degree hanger rod misalignment,

Neoprene Pad Isolators - Type F:

requirements for

Rubber or neoprene-waffle pads.

a. 30 durometer,

b. Minimum 1/2 inch thick.

c, Maximum loading 40 psi.d. Height of ribs: not to exceed 0.7 times width.

2. Configuration: 1/2 inch thick waffle pads bonded each side of 1/4 inch thick steelplate.

Rubber Mount or Hanger - Type G:

1. Molded rubber designed for 0,5 inches deflection with threaded insert.

Glass Fiber Pads -Type H:

2 Neoprene jacketed pre-compressed molded glass fiber.

EXECUTION

EXAMiNATiON

A. Section 01 30 00 - Administrative Requirements: Coordination and project conditions.

B. Verify equipment, ductwork and piping is installed before work in this section is started

3,02 EXISTING WORK

3.03

Provide access to existing piping and ductwork and other installations remaining activeand requiring access.

Extend existing piping and ductwork installations using materials and methodscompatible with existing installations.

INSTALLATION

A. Install isolation for motor driven equipment.

8, Bases:

1,

2.

Set steel bases for 1 inch clearance between housekeeping pad and base,

Set concrete inertia bases for 2 inch clearance between housekeeping pad and

Section - 23 05 48 - Vibration Controls for HVAC Piping and Equipment - Page 5

3.04

3,05

base

C. Adjust equipment level,

D. Install spring hangers without binding.

E. On closed spring isolators, adjust so side stabilizers are clear under normal operatingconditions.

F. Prior to making piping connections to equipment with operating weights substantiallydifferent from installed weights, block up equipment with temporary shims to final height,When full load is applied, adjust isoletors to load to allow shim removal.

G Provide pairs of horizontal limit springs on fans with more than 6 inch static pressure, andon hanger supported, horizontally mounted axial fans.

H Suppor• piping connections to isolated equipment resiliently to nearest flexible pipeconnector,

I, Connect wiring to isolated equipment with flexible hanging loop.

J. Pipe Isolation

'Ix Provide isolators for supports of all piping connected to isolated equipment fordistance indicated on Pipe •solation Schedule.

2• Isolator deflection shall have 1/2 the static deflection capabilities of the isolationsystem of the equipment to which it is connected.

3. Suspended piping: Type E spring hangers.

F•ELD QUALITY CONTROL

A. Section 01 40 00 - Quality Requirements, 01 70 00 - Execution and CloseoutRequirements: Field inspecting, testing, adjusting, and balancing.

B. Inspect isolated equipment after installation and submit report, Include static deflections.

SCHEDULES

Equipment Isolation Schedule:

•so•ated •qulpment

In±Li•e Fa•S

Fan Powered Terminal Units

Uni!s.........Cond singunits

° leeiatorDeflection

None 0.5 in.

None 0,5 in.

None 0.5 in.

None

END OF SECTION

Section - 23 05 48 -Vibration Controls for HVAC Piping and Equipment- Page 6

PART

1

SECTION 23 05 53

iDENTiFiCATiON FOR HVAC PiPiNG AND EQUIPMENT

GENERAL

SUMMARY

A, Section includes:

1. Nameplates,

2. Tags.

3. Stancils=

4. Pipe markers,

5. Ceiling tacks,

8. Labels,

7. Lockout devices.


1. Section 09 90 00 - Painting and Coating: Execution requirements for paintingspecified by this section.

REFERENCES

"1.03

A. American Society of Mechanical Engineers:

1. ASME A13,1 - Scheme for the Identification of Piping Systems.

SUEMITTALS

A. Section 01 33 00 - Submittal Procedures: Submittal procedures,

8, Product Data: Submit manufacturers catalog literature for each product required.

C. Shop Drawings: Submit list of wording, symbols, letter size, and color coding formechanical identification and valve chart and schedule, including valve tag number,location, function, and valve manufacturer's name and model number.

D. Samples: Submit three samples of each of the

1, t8 gauge painted sheet steel, gray background with red lettering of the style andsize proposed for mechanical equipment identification, stenciled or painted withthe words, "Mechanical Identification Scheme."

2. Brass valve tag engraved as specified, with valve chain and hook.

3. Plastic underground pipe markers.

Section 23 05 53 - Identification for HVAC Piping and Equipment- Page

1.04

F. Manufacturer's Installation

procedures, and installation.

CLOSEOUT SUBMITTALS

A.

B,

4. Plastic duct and pipe markers,

5. Plastic equipment markers.

6, Engraved plastic laminate nameplates.

Schedules: Submit a valve chart and schedule, with protective facing end mountingplate, including valve tag number, location, function, and valve manufacturer's name andmodel number, Submit list of wording, symbols, letter size, and color coding formechenical identification,

Instructions: Indicate installation instructions, special

Section 01 70 00 - Execution and CIoseout Requirements: CIoeeout procedures,

Project Record Documents: Record actual locations of tagged valves; include valve tagnumbers.

1,05 QUALITY ASSURANCE

A, Conform to ASME A13.1 for color scheme for identification of piping systems andaccessories,

1.06 QUALIFICATIONS

A. Manufacturer: Company specializing in manufacturing products specified in this sectionwith minimum three years documented experience,

B. Installer: Company specializing in performing Work of this section with minimum threeyears documented experience,

1.07 PREqNSTALLATION MEETINGS

A, Section 01 30 00 = Administrative Requirements: Pre-installation meeting,



1,09 EXTRA MATERIALS

A. Section 01 70 00 - Execution and Closeout Requirements: Spare parts and maintenanceproducts.

B. Furnish two containers of spray-on adhesive,

PART2 PRODUCTS

2.01 ACCEPTABLE MANUFACTURERS

A, Brady.

Section 23 05 53 - Identification for HVAC Piping and Equipment - Page 2

B, Metalcraft

C. PanduiL

D. Seton,

NAMEPLATES

2.02

Description: Laminated three-layer plastic with engraved black letters on light contrastingbackground color.

TAGS

Metal Tags: Brass with stamped letters; tag size minimum 1-1/2 inch square with smoothedges.

B. Chart: Typewritten letter size list in anodized aluminum frame,

2,03 PIPE MARKERS

Each pipe circuit is to be marked by pipe marker. Stick on type or plastic wrap it markersare not acceptable. Pipe markers shall be suitable for all temperatures anticipated insystem down periods as well as operational times.

Adhesive marker shall be made of minimum 0.005 inch thick vinyl with a minimum tensilestrength of 15 lb./inch. Adhesive shall be permanent cold temperature pressure sensitiveacrylic. Surface preparation shall be as prescribed by the manufacturer. The adhesivemarker shall be used on indoor applications only.

All plastic snap over type pipe identification shall be outdoor grade acrylic plastic. Strapon construction shall be used on pipe size (including insulation) six inches and over,

Paint for pipe identification shall be high-grade high gloss enamel in accordance withSection 09900.

Each marker shall indicate direction for flow with an arrow point away from the marker,When flow can be in each direction the marker shall have double-ended arrows,

F. The marker shall comply with ANSI AI 3.1 and ANSI Z53,1 for scheme and color codes,

t. The table below may be used as a guide

Classification

Color of

Color Letters for

Materials Inherently Hazardous

Flammable or Explosive Yellow Black

Chemically Active or Toxic Yellow Black

Section 23 05 53 - Identification for HVAC Piping and Equipment- Page 3

Extreme Temperature Yellow Black

or pressures

Radioactive Purple Yellow

Materials of inherently Low Hazard

Liquid or Liquid Admixture Green White

Gas or Gasesous Admixture Blue White

Fire Quenching Matarials

Water, AFF Foam, CO2, etc. Red White

The size of letters and color field shall comply with the following tsble

2.04

Outside

Diameter Length of Size Ofof Pipe Color Fisld Lettersor Covering A B

1 ;4 to 5/8 2 3/4

3/4 to 1-1/4 8 1/2

1-1/2 to 2 8 3/4

2-1t2 to 6 12 1-114

8to 10 24 2-t/2

Over 10 32 3-1/2

3 Letter styie shali be bold and easy to read simiiar to Sans Serif gothic bold

STENCILS

A. Stencils: With clean cut symbols and letters of following size:

Section 23 05 53 - Identification for HVAC Piping and Equipment - Page 4

1. Ductwork and Equipment: "1-3/4 inches high letters.

Stencil Paint: As specified in Section 09900, semi-gloss enamel, colors and lettering sizeconforming to ASME AI&"1,

2,05 CBIUNG TACKS

A Description: Steel with 3/4 inch diameter color coded head.

B Color code as follows:

1, Yellow - HVAC equipment

2, Red - Fire dampers/smoke dampers

3. Green - Plumbing valves

4. Blue - Heating/cooling valves

2,06 PLASTIC EQUIPMENT MARKERS

General: Provide laminated plastic equipment markers for all items of mechanicalequipment

Equipment identification tags shall identify the function and use of the equipment inlanguage corresponding to the drawings and schedule&

Aluminum nameplates shall be with black enamel background with etched or engravednatural aluminum lettering not less than 3/85 inch high.

Engraved •aminated plastic nameplates may be used on indoor equipment with 3/8 inchhigh lettering and contrasting letter color.

Stenciled high gloss painted lettering in accordance with Section 0£g00 may be usedwhen applied neatly, with minimum 1 inch high lettering over a contrasting color paintedbackground of suitable size far the lettering,

Attachment: Attach nameplates with rivets, stainless steel screws or bolts. Onequipment such as tanks and pumps which cannot be drilled or pierced, attachnameplates with brass chains and "S" hooks.

For HVAC equipment installed above ceiling, provide laminate tags attached to theceiling grid below. All smoke dampers, fire dampers, VAV boxes, humidifiers, etc. shallbe tagged.

2.07 VALVE TAGS

Each valve tag shall be minimum 20 gauges polished brass not less than 1-1/2 inches indiameter. Each tag shall identify service (1;4 inch stamped letters) and valves number(1/2 inch letters).

Tags shall be secured to the valve with approved meter seal, Brass "S' hook, Brass jackchain, or other approved methods.

C. Abbreviations for service shall be as follows with the system designation indicating the

Sect!on 23 05 53 - •dentification for HVAC P!ping and Equipment = Page 5

system served. (Note: color coded aluminum tags may used for this purpose in lieu ofbrass tags).

ABBREVIATIONS FOR SERVICE

HPS High Pressure Steam

HPC High Pressure Stream Condensate

MPS Medium Pressure Steam

MPC Medium Pressure Steam Condensate

IPS Intermediate Pressure Steam

IPC Intermediate Pressure Steam Condensate

LPS Low Pressure Steam

LPC Low Pressure Steam Condensate

CRV Condensate Receiver Vent Line

BPRV Back Pressure Relief Valve Vent Line

BDV Blow Down Tank Vent

BFW Boiler Feed Water

EXS Exhaust Steam Line

FP Fire Protection

HWS Heating Water Supply

HWR Heating Water Return

DCW Domestic Cold Water

DHWS Domestic Hot Water Supply

DHWR Domestic Hot Water Return

CHS Chilled Water Supply

CHR Chilled Water Return

DWS CondenserWater Supply

CWR Condenser Water Return

RS Refrigerant Suction

RL Refrigerant Liquid

RHG Freon Hot Gas


CA Compressed Air

SW Soft Water

GAS Natural Gas

DIWS De-Ionized Water Supply

DIWS De-Ionized Water Return

LP Liquefied Petroleum Gas

NO Nitrus Oxide

N2 Nitrogen

02 Oxygen

MA Medical Air

MV Medical Vacuum

WAGD Waste Anesthetic Gas Disposal

CD Condensate Drain

2.08 ENGRAVED PLASTIC LAMINATE SIGNS

General: Where indicated in other sections of the specifications, provide engravedinstruction signs, warning signs, operational instructions or other signs designated.

Emergency Operating Signs: For emergency instructions on sprinkler protection, fireprotection, air handler/fan start-stop, foam generation, emergency generator starting, orother emergency operating instructions, provide engraved, lam;nata, melamine plastic,white on red, not less than 1/8-inch thick.

1. Provide concise written instructions on the emergency operation of the device.

Letters shall be not less than 5/16-inch in height, engraved 1/16-inch deep in

block capital letters.

Information and Warning Signs: Provide general information and warning signs oflaminatad, melamine plastic, not less than 1/8-inch thick, with white engraved lettering onblack, with letters not less than 1/4-inch in height, block capitals.

Attachment: Attach signs directly to the equipment with rivets, bolts or screws, ifpossible• Otherwise, attach signs with angle brackets, U-bolts, or metal plates held inplace to piping with stainless steel draw-band&

1 Attachment with adhesives will not be permitted.

Locate signs not less than 5 feet nor more than 6 feet 6 inches above theoperating floor, directly visible from an operating aisle.

Section 23 05 53 - Identjficat!on for HVAC P!ping and Equ!pment- Page 7

2.09

2.10

2.11

2.12

& Locate signs to preclude damage during maintenance and repair or by operatingtraffic.

VALVE SCHEDULES AND FRAMES

A, General: Provide valve schedules for all valves except:

1. Chrome plated valves exposed in kitchens.

a. Chrome plated valves exposed in toilet rooms.b. Exterior sill cocks.

Freeze-proof hydrants.

8 Provide typed or machine printed schedules, one item per line, doubleSchedules:

spaced,

1.

2.

Printing shall be black on white, water-resistant, fungus-resistant paper.

For each valve, •ist the valve number, location, size, and use or operatingfunction.

3. Support schedules in full metal backed painted steel or extruded aluminumframes with removable, non-yellowing, clear plastic faces.

4 Screw or bolt schedules to equipment room walls where directed.

5. Coordinate valve numbers with valve tags so that no two valves or scheduleddevices have the same number.

DIRECTIONAL ARROWS

A. Flow Direction: Provide flow directional arrows either as part of duct and pipe markers orseparately, attached to pipes and ducts,

1. Conform to requirements for markers.

2. Size to conform to ANSI A13.1. (1" wide minimum).

LOCKOUT DEVICES

A. Lockout Hasps:

1. Anodized aluminum hasp with erasable •abel surface; size minimum7-1/4 x 3 inches.

8. Valve Lockout Devices:

2. Steel device preventing access to valve operator, accepting lock shackle.

UNDERGROUND HAZARDOUS TAPE

A. Description: 8right colored continuously printed aluminum foil polyethylene laminate tape

Section 23 05 53 - •dentification for HVAC Piping and Equipment - Page 8

(detectable), minimum 6 inches wide designed for direction burial,

Color code as follows:

1. Green - Sewer Lines.

2. Blue - Water Lines

3. Orange - Natural Gas

Continuously label tape "Caution "Pipe Type" buried below"

PART 3

3.02

PREPARATION

A. Degrease and clean surfaces to receive adhesive for identification materials,

B. Prepare surfaces in accordance with Section 09 g0 00 for stencil painting,

INSTALLATION

A, Apply stencil painting in accordance with Section 09 90 00,

B, Install identifying devices after completion of coverings and painting.

C. Install plastic nameplates with corrosive-resistant mechanical fasteners, or adhesive.

D. Install labels with sufficient adhesive for permanent adhesion and seal with clear lacquer,For unfinished canvas covering, apply paint primer before applying labels.

E, Install tags using corrosion resistant chain. Number tags consecutively by location,

F. Install underground plastic pipe markers 6 to 8 inches below finished grade, directlyabove buried pipe.

G, Identify air handling units, pumps, heat transfer equipment, tanks, and water treatmentdevices with plastic nameplates. •dentify in-line pumps and other small devices with tags.

H Identify control panels and major control components outside panels with plasticnameplates.

I. Identify valves in main and branch piping with tags.

J. Identify air terminal units and radiator valves with numbered tags.

K. Tag automatic controls, instruments, and relays. Key to control schematic,

L. Identify piping, concealed or exposed, with plastic pipe markers. Identify service, flowdirection, and pressure. Install in clear view and align with axis of piping. Locateidentification not to exceed 10 feet on straight runs including risers and drops, adjacent toeach valve and tee, at each side of penetration of structure or enclosure, and at eachobstruction,

M, identify ductwork with plastic nameplates, •dentify with air handling unit identification

Section 23 05 53 - Identification for HVAC Piping and Equipment - Page

number and area served. Locate identification at air handling unit, at each side ofpenetration of structure or enclosure, and at each obstruction.

Provide ceiling tacks to locate valves or dampers above T-bar type panel ceilings. Locatein corner of panel closest to equipment.

3.03 INSTALLATION - GENERAL

Provide ceiling tacks to locate valves or dampers above T-bar type panel ceilingsLocate in corner of panel closest to equipment.

Identify VAV boxes with plastic nameplates in clear view from below ceiling. Each VAVbox shall be labeled with its schedules mark (i.e. VAVI-10, etc.)

3.04 CONCEALED VALVES AND EQUIPMENT

Equipment Above Ceilings: Provide valve tagging and identification to equipment locatedabove ceilings, such as variable air volume boxes, plumbing, medical gas, fire protectionor mechanical, valves, traps, and other items before the ceilings are installed

Finished Surfaces: Where identification is to be provided on surfaces which requireinsulation, painting and finishing, install identification after covering and painting iscomplete.

3.05 PIPING SYSTEM IDENTIFICATION

General: •nstall pipe markers of one of the following types on each system indicated toreceive identification, and include arrows to show normal direction of flow:

Plastic pipe markers, with application systems as indicated under "Materials"paragraph in this Section. Install on pipe insulation segment where required forhot non-insulated pipes.

Location: Locate pipe markers and color bands as follows wherever piping is exposed toview in occupied spaces, machine rooms, accessible maintenance spaces (shafts,tunnels, plenums) exterior non-concealed locations, and concealed gas piping. Providemarkersl

1. Near each valve and control device.

Near each branch, excluding short rake-offs for fixtures and terminal units; markeach pipe at branch, where there could be question of flow pattern.

3.06 IDENTIFICATION OF PIPES

A. All piping systems shall be identified with pipe markers.

All markers shall identify the piping system, such as "oxygen", and shall further indicatethe direction of flow. At branches an identifying label and flow arrow shall be affixed tothe branch pipe as well as on the main supply on both sides of the branch •ine.

C. Markers shall be placed at I0 foot intervals on straight runs, at each valve or piece of


equipment served by the piping and at each side of walls or partitions, Where pipingpasses over duct work or other large obstruction(s) the pipe(s) shall be labeled on eitherside of the duct or obstruction (including flow arrow) and the duct or obstruction shall bearlabeling to read "Oxygen Piping Above" (as an example). Where piping is obscured byclose proximity to walls or other pipes, labels, markers and arrows shall be spaced at five(5) foot intervals. On parallel runs, marker shall be located at same relative position, Allmarkers, labels, and flow arrows sha•l be further secured by use of self-locking "TY-RAP"cable ties, or approved equal, secured at both ends of each label.

3.07 VALVE IDENTIFiCATiON

General: Provide a valve tag on every valve, cock and control device in each pipingsystem. Exctude check valves, valves within factory-fabricated equipment units, plumbingfixture faucets, convenience and lawn-watering hose bibs, and shut-off valves at

plumbing fixtures, and HVAC terminal devices, List each tagged valve in valve schedulefor each piping system.

Tagging Schedule: Comply with requirements of "Valve Tags" and "ValveSchedules and Frames" paragraph.

Mount valve schedule frames and schedules in machine rooms where indicated or where

directed,

3.08 MECHANICAL EQUIPMENT IDENTIFICATION

General: Install sign on or near each major item of mechanical equipment. Provide signsfor the following general categories of equipment and operational devices:

1. Main control and operating valves.

2, Meters and gauges.

3. Fuel-burning units including boilers, furnaces, heaters, and absorption units,

4. Pumps, compressors, chillers, condensers and motor driven units.

5. Heat exchangers, evaporators, cooling towers, heat recovery units.

Fans, blowers, and primary balancing dampers.

7, Packaged HVAC central-station units.

8. Tanks and pressure vessels.

Filters, humidifiers, and water treatment systems.

Text of Signs: In addition to name of identified unit, provide lettering to distinguishbetween multiple units, inform operator of operational requirements, indicate safety andemergency precautions, end warn of hazards and improper operations,

END OF SECTION

Section 23 05 53 - •dentification for HVAC Piping and Equipment- Page

SECTION 23 05 93

TESTING, ADJUSTING, AND BALANCING FOR HVAC

PART1 GENERAL

1.01 SUMMARY

A. Sectionlncludes:

2.

3,

Testing adjusting, and balancing of air systems,

Testing adjusting, and balancing of hydronic and refrigerating systems.

Measurement of final operating condition of HVAC systems.

Duct leak testing

Related Sections:

=

4.

5.

6.

7.

8.

9.

10.

11,

1,02 REFERENCES

Section 23 05 48 = Vibration Controls for HVAC Piping and Equipment

Section 23 09 23 - Direct-Digital Control System for HVAC: Requirements forcoordination between DDC system and testing, adjusting, and balancing work

Section 23 31 00 - HVAC Ducts

Section 23 33 00 - Air Duct Accessories

Section 23 34 00 - HVAC Fans

Section 23 36 00 - Air Termina• Units

Section 23 37 00 =Air Outlets and Inlets

Section 23 40 00 = HVAC Air Cleaning Devices

Section 23 73 00 - indoor Central Station Air Handling Units

Section 23 81 26- Ductless Split System Air Conditioning Units=

Section 23 82 19 - Terminal Heat Transfer Units

A. Associated Air Balance Council:

1. AABC MN-1 - National Standards for Testing and Balancing Heating, Ventilating,and Air Conditioning Systems.

B. American Society of Heating, Refrigerating and Air-Conditioning Engineers:

1. ASHRAE 111 - Practices for Measurement, Testing, Adjusting and Balancing of

Section 23 05 93 - Testing, Adjusting, and Balancing for HVAC - Page 1

1.03

Building Heating, Ventilation, Air-Conditioning and Refrigeration Systems.

Natural Environmental Balancing Bureau:

'1. NEBB - Procedural Standards for Testing, Adjusting, and BalancingEnvironmental Systems.

SUBMITTALS

A.

B.

C.

of

Section 01 33 00 - Submittal Procedures: Submittal procedure&

Prior to commencing Work, submit proof of latest calibration date of each instrument.

Test Reports: Indicate data on AABC MN-1 National Standards for Total System Balanceforms or forms prepared following ASHRAE 111 or NEBB Report forms.

Field Reports: •ndicate deficiencies preventing proper testing, adjusting, and balancing ofsystems and equipment to achieve specified performance.

Prior to commencing Work, submit report forms or outlines indicating adjusting,balancing, and equipment data required. Include detailed procedures, agenda, samplereport forms and Copy of NEBB Certificate of Conformance Certification.

F. Submit draft copies of report for review prior to final acceptance of Project.

Furnish reports in soft cover, letter size, 3-dng binder manuals, complete with table ofcontents page and indexing tabs, with cover identification at front and side. Include set ofreduced drawings with air outlets and equipment identified in color to correspond withdata sheets, and indicating thermostat locations.

Submit name of adjusting and balancing agency for approval within 60 days after awardof contract.

1.04 CLOSEOUT SUBMITTALS

A. Section 01 70 00 - Execution and Clceeout Requirements: Closeout procedures

Project Record Documents: Record actual locations of flow measuring stations, balancingvalves and rough setting.

Operation and Maintenance Data: Furnish final copy of testing, adjusting, and balancingreport inclusion in operating and maintenance manuals.

1.05 QUALITY ASSURANCE

Perform Work in accordance with AABC MN-1 National Standards for Field Measurement

and •natrumentation, Total System Ba;ance, ASHRAE t'• 1, NEBB Procedural Standardsfor Tasting, Balancing and Adjusting of Environmental Systems.

1.08 QUALIFICATIONS

Agency: Company specializing in testing, adjusting, end balancing of systems specified inthis section with minimum three years documented experience certified by AABC orCertified by NEBB.

Perform Work under supervision of AABC Certified Test and Balance Engineer or NEBB

Section 23 05 93 - Testing, Adjusting, and Balancing br HVAC - Page 2

Certified Testing, Balancing and Adjusting Supervisor or registered professional engineerexperienced in performance of this Work and licensed in State of Texas,

1.07 SEQUENCING

A. Section 01 10 00 - Summary: Work sequence

B. Sequence balancing between completion of systems tested and Dote of SubstantialCompletion.

1.08 SCHEDULING

A. Section 01 30 00 - Administrative Requirements: Coordination and project conditions.

PART 2 PRODUCTS


A. Air Technologies, Inc.

B. Engineered Air Balance

C. Energy Testing & Balance, Inc.

D. Mechanical Performance, Inc.

E. PHI Service Agency,

F. Testing Specialties, Inc.

PART 3

3,01

EXECUTION

EXAMINATION

A. Section 01 30 00 = Administretive Requirements: Coordination and project conditions.

B. Verify systems are complete and operable before commencing work. Verify the following:

2.

3.

4.

6.

7.

8.

Systems ere started and operating in safe and normal condition.

Temperature control systems are installed complete and operable.

Proper thermal overload protection is in place for electrical equipment.

Final filters are clean end in place. If required, install temporary media in additionto final filters.

Duct systems are clean of debris.

Fans are rotating correctly.

Fire, smoke, motorized and volume dampers are in place and open.

Air coil fins are cleaned and combed.


3.02

3.03

3,04

10.

11.

Repod

Access doors are closed and duct end caps are in place.

Air outlets are installed and connected.

Duct system leakage is minimized,

any defects or deficiencies noted during performance of services to

Architect/Engineer.

Promptly report abnormal conditions in mechanical systems or conditions which preventsystem balance,

E. If, for design reasons, system cannot be properly balanced, report as soon as observed.

F. Beginning of work means acceptance of existing conditions.

PREPARATION

A. Furnish instruments required for tasting, adjusting, and balancing operations.

B. Make instruments available to Architect/Engineer to facilitate spot checks during testing.

•NSTALLAT@ON TOLERANCES

A. Air Handling Systems: Adjust to within plus or minus 5 percent of design.

B. Air Outlets and Inlets: Adjust total to within plus 10 percent and minus 5 percent of designto space. Adjust outlets and inlets in space to within plus or minus 10 percent of design,

C. Hydronic Systems: Adjust to within plus or minus 10 percent of design.

ADJUSTING

A, Section 01 70 00 - Execution and CIoseout Requirements: Testing, adjusting, andbalancing,

B. Verify recorded data represents actual measured or observed conditions.

C. Permanently mark settings of valves, dampers, and other adjustment devices allowingsettings to be restored. Set and lock memory stops.

D. After adjustment, take measurements to verify balance has not been disrupted. Ifdisrupted, verify correcting adiustments have been made,

E, Report defects and deficiencies noted during performance of services, preventing systembalance.

F. Leave systems in proper working order, replacing belt guards, closing access doors,closing doors to electrical switch boxes, and restoring thermostats to specified settings.


G. At final inspection, recheck random selections of date recorded in repcrL Recheck pointsor areas as selected and witnessed by Owner.

Check and adjust systems approximately six months after final acceptance and submitreport.

3.05 AIR SYSTEM PROCEDURE

At Adjust air handling end distribution systems to obtain required or design supply, return,and exhaust air quantities.

Make air quantity measurements in main ducts by Pitot tube traverse of entire crosssectional area of duct,

C. Measure air quantities at air inlets and outlets.

Adjust distribution system to obtain uniform space temperatures free from objectionabledrafts,

Use volume control devices to regulate air quantities only to extent adjustments do notcreate obiectienable air motion or sound levels. Effect volume control by using volumedampers located in ducts.

Vary total system air quantities by adjustment of fan speeds. Provide sheave drivechanges to vary fan speed. Vary branch air quantities by damper regulation.

Provide system schematic with required and actual air quantities recorded at each outletor inlet.

Measure static air pressure conditions on air supply units, including filter and coilpressure drops, and total pressure across fan. Make allowances for 50 percent loading offilters.

Adjust outside air automatic dampers, outside air, return air, and exhaust dampers fordesign conditions.

Measure temperature conditions across outside air, return air, and exhaust dampers tocheck leakage.

At modulating damper locations, take measurements and balance at extreme conditions.Balance variable volume systems at maximum airflow rate, full cooling, and at minimumairflow rate, full heating.

For variable air volume system powered units set volume controller to air•low settingindicated. Confirm connections properly made and confirm proper operation for automaticvariable-air-volume temperature control.

3.06 DUCT LEAK TESTING

All ductwork designed to operate at static pressures in excess of 3-inch wg shall be leaktested in accordance with SMACNA HVAC Air Duct Leakage Test Manual with a

maximum leakage rate to meet International Energy Conservation Code Section 803.3.6.

3.07 SCHEDULES

A. Equipment Requiring Testing, Adjusting, and Balancing:


2.

3.

4.

5.

6,

7,

8.

Air Cooled Refrigerant Condensing Units

Air Coils.

Fans,

Air Terminal Units.

Air Inlets and Outlets.

Exhaust Systems.

Air Handling Equipment.

Primary air duct system leak test.

B. Report Forms

1. Title Page:

Name of Testing, Adjusting, and Balancing AgencyAddress of Testing, Adjusting, and Balancing AgencyTelephone and facsimile numbers of Tasting, Adjusting, and BalancingAgencyProject nameProject location

Project ArchitectProject EngineerProject ContractorProject altitudeReport date

Summary Comments:

Design versus final performanceNotable characteristics of system

Description of systems operation sequenceSummary of outdoor and exhaust flowspressurizationNomenclature used throughout reportTest conditions

to indicate building

3. Instrument List:

a. Instrument

b. Manufacturer

c. Model number

d Serial number

e. Rangef. Calibration date

4. Electric Motors:

a, Manufacturer


Modal/Frame

HP/BHP and kW

Phase, voltage, amperage; nameplate, actual, no loadRPM

Service factor

Starter size, rating, heater elementsSheave MakeCize/Bore

V-Belt Drive:

Identification/location

Required driven RPMDriven sheave, diameter and RPM

Belt, size and quantityMotor sheave diameter and RPM

Center to center distance, maximum, minimum, and actual

Air Cooled Condensing Unit:

Identification/number

Location

Manufacturer

Model number

Serial number

Entering DB air temperature, design and actualLeaving DB air temperature, design and actualNumber of compressors

Cooling Coil Data:

Identification/number

Location

Service

Manufacturer

Air flaw, design and actual

Entering air DB temperature, design and actualEntering air WB temperature, design and actualLeaving air DB temperature, design and actualLeaving air WB temperature, design and actualWater flow, design and aetuaiWater pressure drop, design and actualEntering water temperature, design and actualLeaving water temperature, design and actualSaturated suction temperature, design and actualAir pressure drop, design and actual

10. Air Moving Equipment:

a. Location

b. Manufacturer

c. Model number

d. Serial number

e. Arrangement/Class/Dischargef. Air flow, specified and actual

Section 23 05 93 - Tasting, Adjusting, and Balancing for HVAC - Page 7

Return air flow, specified and actualOutside air flow, specified and actualTotal static pressure (total external), specified and actualInlet pressureDischarge pressureSheave Make/SizeCore

Number of Belts/Make/Size

Fan RPM

11. Return Air/Outside Air Data:

Identification/location

Design air flowActual air flow

Design return air flowActual return air flow

Design outside air flowActual outside air flow

Return air temperature

Outside air temperature

Required mixed air temperatureActual mixed air temperature

Design outside/return air ratioActual outside/return air ratio

12. Exhaust Fan Data:

Location

Manufacturer

Model number

Serial number

Air flow, specified and actualTotal static pressure (total external), specified and actuai•nlet pressure

Discharge pressureSheave Make/Size/Bore

Number of Belts/Make/Size

Fan RPM

13. Duct Traverse:

a. System zone/branchb. Duct size

c, Area

d. Design velocitye. Design air flowf. Test velocity

g. Test air flowh. Duct static pressure

i. Air temperature

j. Air correction factor

14, Duct Leak Test:

Description of ductwork under testDuet design operating pressure


18.

Duct design test static pressureDuct capacity, air flowMaximum allowable leakage duct capacity times leak facterTest apparatus

1 ) Blower2) Orifice, tube size3) Orifice size4) Calibrated

Test static pressure

Test orifice differential pressure

Leakage

Terminal Unit Data:

Manufacturer

Type, constant, variable, single, dual duct•dentification/number

Location

Model number

Size

Minimum static pressure

Minimum design air flowMaximum design air flowMaximum actual air flow

Inlet static pressureFan RPM

Air Distribut;on Test Sheet:

a. Air terminai number

b. Room number/location

c. Terminal typed. Terminal size

e. Area factor

f. Design velocityg. Design air flowh. Test (final) velocity

i. Test (final) air flowj. Percent of design air flow

END OF SECTION


SECTION 23 07 00

HVAC iNSULATiON

PART1 GENERAL

1.01 SUMMARY

A. Section Includes:

1. Piping - Glass Fiber

2. Piping - Jackets

3. Piping Cellular Foam

4. Ductwork - Glass Fiber, Flexible

B, Related Sections:

Section 07 84 O0 - Firestopping: Product requirements for firestopping forplacement by this section.

Section 09 90 00 - Painting and Coating: Execution requirements for paintinginsulation jackets and covering specified by this section.

Section 23 05 29 - Hangers and Supports for HVAC Piping and Equipment:Product and Execution requirements for inserts at hanger 1ocations.

Section 23 05 53 - Identification for HVAC Piping and Equipment: Productrequirements for HVAC piping and equipment identification.

1,02 REFERENCES

A. ASTM International:

ASTM A167 - Standard Specification for Stainless and Heat-ResistingChromium-Nickel Steel Plate, Sheet, and Strip.

ASTM 8209 - Standard Specification for Aluminum and Aluminum-Alloy Sheetand Plate,

ASTM C177 - Standard Test Method for Steady-State Heat Flux Measurementsand Thermal Transmission Properties by Means of the Guarded-Hot-PlateApparatus,

ASTM C195 - Standard Specification for Mineral Fiber Thermal insulatingCement.

ASTM C449/C449M - Standard Specification for Mineral Fiber Hydraulic=SettingThermal Insulating and Finishing Cement,

ASTM C518 - Standard Test Method for Steady-State Heat Flux Measurementsand Thermal Transmission Properties by Means of the Heat Flow MeterApparatus.

Section 23 07 00 - HVAC insulation - Page 1

8

10

11.

12.

13.

I4.

I5.

16.

17.

18.

19.

20.

21.

22.

23.

24.

25.

26.

ASTM C533 - Standard Specification for Calcium Silicate Block and PipeThermal Insulation,

ASTM C534 - Standard Specification for Preformed Flexible Elastomeric CellularThermal Insulation in Sheet and Tubular Form,

ASTM C547 - Standard Specification for Mineral Fiber Pipe Insulation,

ASTM C552 - Standard Specification for Cellular Glass Thermal Insulation.

ASTM C553 - Standard Specification for Mineral Fiber Blanket ThermalInsulation for Commercial and Industrial Applications.

ASTM C591 - Standard Specification for Unlaced Preformed Rigid CellularF•olyisocyanurate Thermal Insulation.

ASTM C592 - Standard Specification for Mineral Fiber Blanket Insulation andBlanket-Type Pipe Insulation (Metal-Mesh Covered) (industrial Type).

ASTM C610 - Standard Specification for Molded Expanded Perlite Block andPipe Thermal Insulation.

ASTM C612 - Standard Specification for Mineral Fiber Block and Board ThermalInsulation.

ASTM C795 - Standard Specification for Thermal Insulation for Use in Contactwith Austenitic Stainless Steel.

ASTM C921 - Standard Practice for Determining the Properties of JacketingMaterials for Thermal Insulation.

ASTM C1071 - Standard Specification for Thermal and Acoustical Insulation(Glass Fiber, Duct Lining Material).

ASTM Cl126 - Standard Specification for Faced or Unlaced RigidPhenolic Thermal Insulation.

ASTM Cl13B - Standard Specification for Flexible, Low Permeance VaporRetarders for Thermal Insulation.

ASTM C1290 - Standard Specification for F•exible Fibrous Glass BlanketInsulation Used to Externally •nsulate HVAC Ducts.

ASTM D1784 - Standard Specification for Rigid Poiy (Vinyl Chloride) (PVC)Compounds and Chlorinated Poly (Vinyl Chloride) (CPVC) Compounds.

ASTM E84 - Standard Test Method for Surface Burning Characteristics ofBuilding Materials.

ASTM E9B - Standard Test Methods for Water Vapor Transmission of Materials.

ASTM E1B2 - Standard Test Method for Surface Flammability of Materials Usinga Radiant Heat Energy Source.

ASTM G21 - Standard Practice for Determining Resistance of Synthetic

Section 23 07 00 - HVAC Insulation - Page 2

1.03

1.04

.05

1.06

'• ,07

Polymeric Materials to Fungi.

B. Sheet Metal and Air Conditioning Contractors':

1. SMACNA - HVAC Duct Construction Standard - Metal and Flexible.

SUBMITTALS


E•. Product Data: Submit product description, thermal characteristics and list of materialsand thickness for each sen4ce, and location.

Samples: Submit one sample of representative size illustrating each insulation type.

Submit manufacturers published literatureD. Manufacturer's Installation Instructions:

indicating proper installation procedures.

QUALIFICATIONS

A. Manufacturer: Company specializing in manufacturing products specified in this sectionwith minimum three years experience.

B. Applicator: Company specializing in performing Work of this section with minimum threeyears experience.

DEUVERY, STORAGE, AND HANDLING

Section 01 60 00 - Product Requirements: Requirements for transporting, handling,storaging, and protecting products.

Accept materials on site in original factory packaging, labeled with manufacturer'sidentification, including product density and thickness.

Protect insulation from weather and construction traffic, dirt, water, chemical, and

damage, by storing in original wrapping.

B.

C.

ENVIRONMENTAL REQUIREMENTS

A.

B.

Section 01 60 00 - Product Requirements: Environmental conditions affecting 3roductson site.

•nstall insulation only when ambient temperature and humidity conditions are within rangerecommended by manufacturer.

C. Maintain temperature during and after installation for minimum period of 24 hours.

FIELD MEASUREMENTS


PART 2 PRODUCTS

2.01 PiPiNG - GLASS FIBER

Section 23 07 00 - HVAC insulation - Page 3

2•02

Insulation: ASTM C547; rigid molded, non-combustible.

1. 'K' value: ASTM C335, 0.24 at "75 degrees F.

2. Minimum Service Temperature: -20 degrees F.

3. Maximum Service Temperature: 300 degrees F.

4. Maximum Moisture Absorption: 0.2 percent by volume.

Vapor Barrier Jacket

1. ASTM C921, white kraft paper reinforced with glass fiber yarn and bonded toaluminized film.

2. Moisture Vapor Transmission: ASTM E96; 0.02 perm inches.

3. Secure with self sealing longitudinal laps and butt strip&

4. Secure with oub,vard clinch expanding staples and vapor barrier mastic.

C. Tie Wire: 18 gage stainless steel with twisted ends on maximum 12 inch centers.

D. Vapor Barrier Lap Adhesive

1. Compatible with insulation•

E. Insulating Cement/Mastic

1, ASTM Cl 95; hydraulic setting on mineral wool.

F. Fibrous Glass Fabric

1. Cloth: Untreated; 9 oz/sq yd. weight.

2. Blanket: "•,0 Ib./cu. ft. density.

G. indoor Vapor Barrier Finish

1. Vinyl emulsion type acrylic, compatible with insulation, white color.

PIPING CELLULAR FOAM

A. insulation: ASTM C534; flexible, cellular elastomedc, molded or sheet.

2.

3.

4.

5.

'K' Value: ASTM C177 or C518; 0.27 at 75 degrees F.

Minimum Service Temperature: -40 degrees F.

Maximum Service Temperature: 220 degrees F.

Maximum Moisture Absorption: ASTM D1056; 1.0 by volume.

Moisture Vapor Transmission: ASTM E96; 0.20 perm inches.


Maximum Flame Spread: ASTM E84; 25.

Maximum Smoke Developed: ASTM E84; 50.

Connection: Waterproof vapor barrier adhesive,

B. Elastomeric Foam Adhesive

1, Air dried, contact adhesive, compatible with insulation.

2.03 DUCTWORK - GLASS FIBER, FLEXIBLE

A. •nsulation: ASTM C553; flexible, noncombustible blanket.

I. 'K' ('Ksi') value: ASTM C518, 0.29 at 75 degrees F,

2. Maximum service temperature: 250 degrees F.

3, Maximum moisture absorption: 0.20 percent by volum&

4. Density: "I .0 Ib/cu ft.

B. Vapor Barrier Jacket

1, Kraft paper reinforced with glass fiber yarn and bonded to aluminized film.

2. Moisture vapor transmission: ASTM E96; 0.04 1.3 perm,

3. Secure with pressure sensitive tape.

C. Vapor Barrier Tape

1, Kraft paper reinforced with glass fiber yarn and bonded to aluminized film, withpressure sensitive rubber based adhesive.

D, Tie Wire: Annealed steel, 16 gage.

2.04 PIPING - JACKETS

A. PVC Plastic

1. Jacket: ASTM C921, One piece molded type fitting covers and sheet material, offwhite color.

a. Minimum Service Temperature: -40 degrees F.b. Maximum Service Temperature: 150 degrees F.

c. Moisture Vapor Transmission: ASTM E96; 0.002 perm inches.d, Maximum Flame Spread: ASTM E84; 25.

e. Maximum Smoke Developed: ASTM E84; 50.f. Thickness: 20 rail.

g, Connections: Brush on welding adhesive.

2. Covering Adhesive Mastic


PART3 EXECUTION

3,01

3.02

Compatible with insulation.

EXAMINATION

A. Section 01 30 00 = Administrative Requirements: Coordination and project conditions.

B, Verify piping, equipment and ductwork has been tested before applying insulationmaterials.

C. Verify surfaces are clean and dry, with foreign material remove&

INSTALLATION - PiPiNG

A. install materials in accordance with manufacturer's instructions.

B. Exposed Piping: Locate insulation and cover seams in least visible locations.

C Insulated pipes conveying fluids below ambient temperature: insulate entire systemincluding fittings, valves, unions, flanges, strainers= flexible connections, and expansionjoints.

D. Insulated pipes conveying fluids below ambient temperature:

Furnish factory-applied or field=applied vapor retarder jackets. Secure factory-applied jackets with pressure sensitive adhesive self-sealing •ongitudinal lapsand butt strips. Secure field-applied jackets with outward clinch expandingstaples and seal staple penetrations with vapor retarder mastic.

2. Insulate fittings, joints, and valves with molded insulation of like material andthickness as adjacent pipe. Finish with glass cloth end vapor retarder adhesive orPVC fitting covers.

E For hot piping conveying fluids over 180 degrees F, insulate flanges and unions atequipment. If 180 degrees F or under, then bevel and seal ends of insulation.

F. Insulated pipes conveying fluids above ambient temperature

1, Furnish factory-applied or field=applied standard jackets. Secure with outwardclinch expanding staples or pressure sensitive adhesive system on standardfactory-applied jacket and butt strips or both,

2, Insulate fittings, joints, and valves with insulation of like material and thickness asadjoining pipe= Finish with glass cloth and adhesive or PVC fitting covers.

G. inserts and Shields:

t• Application: Piping or Equipment 1-1;2 inches diameter or large•

2= Shields: Galvanized steel between pipe hangers or pipe hanger roils and inserts.

3, Insert location: Between support shield and piping and under finish jacket,

4, Insert configuration: Minimum 6 inches long, of thickness and contour matching

Section 23 07 00 = HVAC insulation - Page 6

3,03

3.05

adjoining insulation; may be factory fabricated,

5, Insert materiel: Compression resistant insulating material suitable for plannedtemperature range and service,

H Continue insulation through penetrations of building assemblies or portions of assemblieshaving fire resistance rating of one hour or less. Provide intumescent firestopping whencontinuing insulation through assembly, Finish at supports, protrusions, and interruptions,Refer to Section 07 84, 00 for penetrations of assemblies with fire resistance ratinggreater than one hour.

Pipe Exposed in Mechanical Equipment Rooms(less than 10 feet above finished floor) orFinished Spaces: Finish with PVC jacket and fitting covers,

INSTALLATION - DUCTWORK

A Install in accordance with manufacturer's instructions.

B. Insulated ducb•vork conveying air below ambient temperature:

I. Provide insulation with vapor retarder jackets.

2. Finish with tape and vapor retarder jacket.

3. Continue insulation through walls, sleeves, hangers, and other duct penetrations,

4. Insulate entire system including fittings, joints, flanges, fire dampers, flexibleconnections, and expansion joints.

5, insulate hi-efficiency filter frames and VAV box reheat coils

C. Insulated ductwork conveying air above ambient temperature:

1, Provide with or without standard vapor retarder jacket.

2. Insulate fittings and joints. Where service access is required, bevel and seal endsof insulation.

D. External Duct •nsulatian Application:

"I, Secure insulation with vapor retarder with wires and seal jacket joints with vaporretarder adhesive or tope to match jacket.

2. •nstall without sag on underside of ductwork, Use adhesive or mechanicalfasteners where necessary to prevent sagging. Lift ductwork off trapeze hangersand insert spacers.

3 Seal vapor retarder penetrations by mechanical fasteners with vapor retarderadhesive.

4, Stop and point insulation around access doors and damper operators to allowoperation without disturbing wrapping.

PIPING - GLASS FIBER INSULATION SCHEDULE

PiPiNG SYSTEMS PiPE SiZE r•lN•


Heating Systems •ndoors:Heating Water Supply and Return

Cooling Systems Indoors:

Chilled Water Supply and Return

All above grade make-up water and drainpiping that continuously holds water

(Outside, Above Grade)

CooUng Systems in Crawl Spaces,Chilled Water Supply and Return

Heating Systems in Crawl Spaces,and In Mechanical Rooms:

Hot Water Supply and Return

3.06 PIPING - CELLULAR FOAM INSULATION SCHEDULE

inch

1-1/2" & smaUer

2" & larger

t-1/2" & smaller

2" & larger

All

All

All

PiPiNG SYSTEMS PiPE SIZE

inch

A, Condensate Drains All

B Refrigerant Liquid and Suction Piping All

1-1/2"

1 -1/2"

2o

MIN,

THICKNESS

Inch

1/2"

3.07 DUCTWORK-GLASS FIBER FLEXIBLE INSULATION SCHEDULE

SYSTEM MIN, THICKNESS

Supply t 1/2"Outside Air t 1/2°

Return, Relief 1 1;27

MIN, iNSTALLED

R=VALUE

6

5

5

END OF SECTION


SECTION 23 09 23

DIRECT DiGiTAL CONTROL SYSTEM

PART 1 GENERAL

1.01 DESCRIPTION

It is the intent of this specification to describe the basic architecture and performancerequirements of the Building Automation System (BAS). The BAS shall be based on adistributed system of fully intelligent, stand-alone controtlers, operating in a multi=tasking,multi=user environment on a true peer-to-peer, token passing Local Area Network (LAN),called the Controller LAN. All "primary" equipment shall be served by stand alonecontrollers residing directly on this Controller LAN. System architectures with primaryequipment controllers residing on masteflslave (polling) networks or subnetworks will notbe acceptable. The Building Automation System shall include all work station softwareand hardware, Process Control Units (PCU)/NCU, Secondary LAN Controllers (SLC),Local Area Networks (I_AN), sensors, control devices, actuators, installation andcalibration, supervision, adjustments and fine tuning necessary for a complete and fullyoperational system.

Each installation shall comply with local, state, end federal code requirements asapplicable=

C= The Alamo Colleges - PAC campus presently has a Schneider Etectric PCW. Thefollowing shall be provided by the successful controls contractor on one of theworkstations:

Expand PCW existing graphics to display the new equipment herein specified andprovide live data on the graphics as required for all points in the input/outputsummaries,

Existing BAS software on the PCW shall be utilized to communicate with all newpoints. Software separate from the existing BAS software that resides in thebackground or that must be loaded into the memory will not be acceptable.

Wide Area network communications shall be provided to communicate to thisspecified project so that rea• time data access is always available, Auto dialcommunication over telephone line is not acceptable. PC anywhere typecommunication is also not acceptable. The existing 8AS software shallcommunicate over the District WAN and display data in the same manner asSAC campus direct LAN connected points,


Acceptable manufacturers:

1. Schneider Electric•

The DDC system equipment shall be installed by the factory owned office of one of themanufacturers listed above. Distributors or Representatives of the manufacturer, or any

Section 23 09 23 - Direct Digital Control System - Page 1

other installer w]ll not be acceptable bidders for this project.


C. Personal Computers, sensors, awitches, valves, actuators, dampers, transducers,thermostats, analog controllers, etc. may be provided from another manufacturer than thelisted acceptable menufacturar complies with this specification.

.03 RELATED WORK

A. See related sections General Requirements: Division 1, Related mechanical work:Division 15, Related electrical work: Division 16.


A. The controls shall be installed by competent mechanics and checked out by competenttechnicians regularly employed by the manufacturer of the equipment.

B. Single source responsibility of the contrors contractor shal• include installation, calibration,and check-out of the systems.

C. The centrals contractor shall have an in-place, local support facility with technical staff,spare par•s inventon•', and all necessary test diagnostic equipment.

.05 SUBMITTALS

A. Submit under provisions of Section 01300.

B. Submittals shall consist of:

1. Data sheets of all products.

2. Wiring interconnection diagrams including panel and device power, and sources.

3. List of materials of all proposed devices and equipment.

4, Sequence of operation, in text form.

5, Controls schematics and system diagrams.

1.06 CONTROLAND POWER WIRING

A. All electrical contro• wiring, conduit, raceway and cable systems shall be furnished andinstalled under this section,

1. Wiring of interlock systems includes, but is not limited to, all fan interlocks andmotorized dampers. See schedule on the drawings for motorized dampers to beinterlocked.

2 Wiring of control equipment includes, but in not limited to, all necessary relays,switches and other equipment specified or required to accomplish interlocks andcontrol sequences specified.

3. Wiring shall conform to National Electrical Code and ANSI C2

B Low voltage wiring shall be run in EMT conduit in exposed areas, attic spaces, and invertical risers. Low voltage wiring shall be run in Schedule 80 PVC conduit outside. Line


voltage control wiring shall be run in EMT conduit.

All "i 20V power wiring required to make the control system completely functional, which isnot shown on the electrical drawings shall be provided by the contrela contractor inaccordance with Division 28 specification requirements.

PART 2 PRODUCTS

2.01 WAN

The bidder shall provide required hardware interfaces and software to insure that all newspecified point data for this project is routed over the ALAMO COLLEGES wide areanetwork to the existing workstation at the PAC campus so that full monitor and control isprovided.

2.02 LOCAL AREA NETWORKS (LAN)

A. Primary Controller LAN N-• Bus:

The PAC campus has an existing Primary Controller LAN N-1 Bus between buildings.Provide on-site for this project, a minimum of 1 PCU or SLCI (TAC) / NCU/(JCI) topreserve this existing configuration of Primary Controller LAN N-1 controller per building.Additional controllers within the building may then be secondary LAN N-2 type controllers

The Primary Controller LAN shall be a high speed "bus type" network over whichinformation is transmitted in a "global" fashion between all the nodes on the network.

The Primary Controller LAN shall have the capacity to contain not less than 64 nodes as aminimum. Each work station, PCU/NCU, or "gateway" device shall represent a node tothe network.

The Primary Controller LAN shall connect the nodes in a fully distributed environment,each PCU/NCU operating autonomously while communicating with all other nodes on thenetwork. Controller LANe requiring a communication controller (for any reason) will not beacceptable. LAN lengths in excess of 24,000 ft. shall be supported.

A break in the communication path of the Primary Controller LAN shall be announced asan alarm and shall automatically initiate a Controller LAN reconfiguration such that theresulting sections of the Controller LAN continue to function as separate LANe. No lossof control shall result from such a break in the Controller LAN

2.03 TRANSMISSION SYSTEM

The BAS shall utilize the LAN architecture to allow all of the Process Control Units

PCU/NCU to share data as we•l as to globalize alarms, The Controller LAN shall bebased on a peer-to-peer, token passing technique with a data speed of not less than19,200 baud. Systems which require a "master" communications controller or networkmanager for the Controller LAN are not acceptable.

B. Communication Techniques

The Controller LAN shall support node interface devices for the work stations which shell


function as a "gateway" to convert, buffer, and filter the Controller LAN data to the RS-232data port of the PC work station. These "gateway" devices shall suppor• local hardwiredwork stations as well as auto-answer/auto-dial modems and remote pagers. The

"gateways" shall allow PC work stations to interface to the Controller LAN at any point onthe network directly without having to be connected to a PCUINCU in order tocommunicate with the system.

To ensure high throughput, data transmission shall use "packetized" communizationtechniques, such that dozens of "messages" are contained in each "packet".

D Network Support:

The "turnaround time" for a global point to be received by any node, including operatorstations, shall be less than 3 seconds. The Primary Controller LAN shall provide forautomatic reconfiguration if any station (F•rocess control unit, PC work station, gateway,etc.) is added or lost. Should the transmission cable be cut, the two sections shallreconfigure with no disruption to the system's operation and without any operatorintervention.

E. Network Trees & Summaries:

Provide automatic, on-line configuration summaries listing each device or node on eachtier of a mult[4iered BAS system architecture. Separate summaries shall exist for:Controller LAN, Commercial LAN, Secondary LAN Controller network. Each summaryshall list the point address/name, the device type, the device name, the revision level, andthe revision date.

2.04 PROCESS CONTROL UNITS (PCU)(NCU)

Each PCU/NCU in the system shall contain its own microprocessor and memory with aminimum 30 day battery backup. Each PCU/NCU in the system shall be a completelyindependent stand-alone "master" with its own hardware clock calendar and all firmwareand software to maintain complete control on an independent basis. Each PCU/NCUshall include the following capabilities:

Acquire, process, and transfer information to the PC operator work stations orother PCU/NCU's on the network.

Accept, process, and execute commands from the other PCU/NCU's or otherinput devices, or multiple PC work stations.

Allow access to both data base and control functions by multiple work stations atthe same time.

Record, evaluate, and report the changes of state and/or value that occur amongpoints associated with the PCU/NCU. If any operator work station ortransmission network fails, but the power to the PCU/NCU does not, thePCU/NCU shall continue to perform all control functions associated with thepoints to which the PCU/NCU remains connected.

Specifically, a PCU/NCU shall contain memory and processing capability toperform in a stand-alone mode:


Scheduled start/stop

Adaptive optimized start/atopDuty cyclingAutomatic temperature ControlDemand control via a sliding window, predictive algorithmEvent initiated control

Calculated pointScanning and alarm processingFull Direct Digital ControlTrend loggingGlobal communications

Maintenance scheduling

Automatic and Adaptive tuning of PID loops

PCU/NCU Global Communications:

Each PCU/NCU shall have the ability to transmit any or all I/O points as global points ontothe network for use by other PCU/NCU's and to utilize data from other panels as part ofits data base. To maximize system throughput, and minimize unnecessary networktraffic, analog inputs shall be transmitted only after an operator specified change of valuehas occurred since the last broadcast value. This change of value threshold shall beoperator selectable on a per point basis,

PCUINCU Field Input/Output Capability:

The following point types must be supported by the PCU/NCU'e.

t. Discrete/digital input (contact status).

2. Discrete/digital output (maintained, momentary, dual momentary, floating).

Analog input (4-20 mA or 1-5 VDC with 12-bit A2D conversion resolutionminimum).

4. Analog output (4-20mA and 0-10 VDC with 8-bit D/A resolution minimum).

Pulse input capable of accepting 10 pulses/second and accumulating total,

Pulse Width Modulation (F•WM) output capable of producing a pulse anywherebetween 0-655 seconds in duration with 0.01 second resolution,

'7. Every digital output and analog output shall have an HOA switch inside thePCU/NCU initially set to Auto. When manually set to the Hand position, the digitaloutput will be kept "on" or the analog output shall be driven to one end of itsthrottling range. The opposite position will occur when manually set to "off'.Each Hand, Off, or Auto manual setting will be indicated at the central workstationfor all outputs,

Each PCU/NCU shall have the ability to monitor, control or address not less than300 data points.

PCU/NCU Point Scanning: It shall be possible to independently set the scan orexecution speed for each point in the PCU/NCU to an operator selected time from

Section 23 09 23 - Direct D!gital Control System - Page 6

1 te 254 secends.

10. PCUfNCU Upload/Download Capability:

Each PCUINCU shall be able to download from or upload to any PC operators

work station. All point data shall be modifiable from any authorized PC operatorswork station and downloaded to the PCU/NCU over the Controller LAN. It shall

not be necessary to enter parameters locally at the PCU;NCU for controlprograms to take effect. This upload/download shall be readily performed on aregular basis without interrupting the control functions in the PCU;NCU. Allupload/downloads shall be performed without the operator workstation beingtaken "offline", and shall be completed in no more than 15 seconds.

11. PCU/NCU Diagnostics:

Provide diagnostics which support the following dynamic (one second refresh)parameters:* Processor loading

* LAN Loading

* Memory data

12. PCU/NCU Test Mode Operation:

Each PCUfNCU shall have the ability to place inputYoutput points in a testnod& The test mode shall allow control algorithms to be tested anddeveloped on line without disrupting the field hardware and controlledenvironment, The treatment of all I/O points in the test mode shall be asfollows:

1)

2)

Scanning and calculation of all input points in test mode shall beinhibited. Manual control of input points in test mode will allowsetting the analog or digital input point to an operator determinedtest value, which can be issued from any fixed or portableoperator console.It shall be possible to control all output points, but only the database state/value shall be changed - the external field hardware isleft unchanged. Failure to provide test mode capability willpreclude acceptance,

2,05 Secondary LAN Controllers

Secondary LAN Controllers (SLCs) may be utilized for:

I Fancoils, Unit Ventilators, Constant Volume AHUs,

Heatpumps, and VAV boxes,

Split system AHUs,

Seconda• LAN Controllers {SLCs) may not be used for VAV AHUs or Central

ChillerABoiler plant control.

Secondary LAN Controllers shall be connected to the Controller LAN via a SecondaryLAN Controller •nterface (SLCI). The SLCl shall be a PCU/NCU without any directlyconnected points. SLCs shall be connected to the SLC• via a high speed, RS-485subnetwork, For system reliability, distribution of risk, and high throughput, not more than

Section 23 09 23 - Direct Digital Controi System - Page 7

64 SLCs shall be connected to any single SLCl.

The SLCI shall provide common, and memory intensive functions for locally connectedSLCs, including: time scheduling, custom or global calculations, and historical datacollection. The operator interface for all SLCI database entry and application programsshall be fully integrated and consistent with other PCU/NCUs.

Secondary LAN Controllers shall function standalone for the local loop functions of theSecondary LAN unit. Complete P•D algorithms shall reside and execute at the SLC level.Secondary LAN Controllers with Proportional only, Proportional;Integral only, or withvalues for PID which cannot be tuned from the primary PC work stations areunacceptable,

E. Secondary LAN Controller Field Input/Output Capability:

The following point types must be supported by the SLCs:

Discrete/digital input (contact status).Discrete/digital output (maintained, floating)•Analog inputPulse input capable of accepting 5 pulses/second and accumulating total.Pulse Width Modulation (PWM) output capable of producing a pulse anywherebetween 0-655 seconds in duration with 0.01 second resolution.

F, The SLC shall additionally provide the following:

A local clock featuring an integral 7 day start/stop schedule to be used as adefault if not connected to the SLCI. If the communications LAN should be cut,

the SLC will continue to operate on this weekly time schedule.

Object Module Programming to allow flexibility in meeting specific applicationrequirements. Controllers with only canned or burned in software logic will not bepermitted.

3. Distributed standalone operation

To ensure "tight" integration between all system hardware and software, as well as longterm component availability, the SLC• and SLC shall be originally manufactured by thesame manufacturer who supplies the PCU;NCUs, Controller LAN, and workstationapplication software, Private labeling of these components does not fulfill thisrequirement,

2.06 TRANSDUCERS

Where analog outputs are required, they may be either direct outputs or may utilize PulseWidth Modulation transducers. In either case provide a gauge and analog feedback forpneumatic outputs. PWM to pneumatic, voltage, current, or resistance transducers maybe used as long as they are of the same manufacturer as the control system, Thesetransducers shall receive their PWM signal from the controller as a "setpoint" and retainthe last "setpoint" until receiving another such signal from the controller, even if thecontroller is inoperative. Provide for local manual override of the transducer, if thecontroller is inoperative.


2.07 SENSORS

A Temperature Sensors:

Provide RTD. thermistor, or solid state sensors for all temperature application& Sensorsshall be linear, drift free, and require only a one time calibration. Resolution shall bebetter than .5 degrees F for Secondary LAN Controller applications, and better than .2degrees F for PCU/NCU applications.

B, Liquid immersion sensors shall be provided with wells for insertion into the piping. (Strap-on temperature sensing will not be allowed unless stated otherwise in the specification),

C. Indicating Digital Sensor (IDS):

IDS's shall be provided where specified in the sequence of operation. Each IDS shall beprovided with the following:

1. Integral Microprocessor

2. Local LED display showing space temperature, space setpoint, and outside airtemperature

3. Fan start/atop button with light for "ON" status

4, Local sensor setup and offset control

5. Password protected access to temperature setpoint

D, Humidity Sensors: Sensors shall have a humidity monitoring range of 20/90% Fullrange accuracy shall be _+3% RH.

E. Outdoor Combination Humidity & Temperature Sensor: Shall be a Vaisala modelHMD60UO,,'YO Outdoor humidity and temperature transmitter and solar radiation shield.

F. Static Pressure Sensors: Sensors shall be provided with a 4-20 ma output. Monitoringrange shall be 0. t t2.5 inches H20. Accuracy shall be ± 1% of full sca;e.

G Fan or pump status Proof: Status when specified shall be proven by adjustable thresholdcurrent sensing relay. Pressure unless DP switch specifically specified.

2,08 FLOW METER AND BTU METER

A. Row meters shall be the insertion turbine type with wetted metal components constructedof electroless nickel plated brass and with a weathertight aluminum electronics enclosure.

B. Sensor: Electronic impedence sensing (non magnetic and non photoelectric).

C. Accuracy: +/- 0.5% of reading at calibrated velocity+/- 1% of reading from 3 to 30 fps velocity (10:1 range)+/- 1% of reading from 0.4 to 20 fps velocity (50:1 range)

D. Pipe Size: 1-1/4" to 72" nominal


E Onicon model F-1200 Dual Turbine Flow Meter. Provide Onicon System 10-LON BTUmeter.

2.09 CONTROL VALVES

A, New control valves shall be electric.

B. Sizing:

Water valves shall be sized for a maximum 5 PSIG pressure drop. Steam valvesshall be sized for pressure drop equal to 80% of inlet pressure.

C Valves 2" and smaller shall be screwed pattern; 2-1/2" and larger shall have flangedbodies.

Use ball or globe valves for coil valves, Use globe valves for boiler mixing. Use butterflyvalves for changeover.

2,10 DAMPER ACTUATORS

A Damper actuators sha•l be electric unless specified to be pneumatic.

Electric modulating damper actuators shall be of the direct coupled rotary type using 0 -10 volt, floating, or PWM inputs. A•I outside air dampers shall have spring returnactuators to close on loss of power.

2.'11 CONTROL DAMPERS

All automatic control dampers shall be opposed blade type with blades made of 16 gaugegalvanized steel and a maximum of 8" wide. Frames shall be roll formed galvanizedsteel, double thickness reinforced for structural strength equal to 13 gauge channel typeframes.

Flexible metal jamb seals and EPDM blade seals shall be provided to allow no more than0.5% maximum leakage, i,e. less than 10 CFM per square foot leakage at 4"w.g..Specification Reference: Ruskin CD46 or equal.

2.12 MISCELLANEOUS CONTROL DEVICES

Freezestats, where specified in sequence of operations, shall be manual reset with 20foot element attached in horizontal loops to entering air face of center cooling coil.Control shall be responsive only to the lowest temperature along the element.

DDC controllers shall be installed in Nema-I enclosures fully enclosed cabinets with allsteel construction. Cabinets shall have hinged door with Icoking •atch or bolt on cover

plate. All cabinet •ocks shall be common keyed. Panel shall be wall mounted or freestanding as located on mechanical drawings.

All devices shall be located within the cabinet and mounted to a sub-panel unless stated

otherwise in this specification.

Section 23 0g 23 - Direct Digital Control System - Page "• 0

D. Provide nameplates for all door flush mounted devices

PART 3 BAS SOFTWARE

3.01 SOFTWARE:

This Contractor shall provide all software required for efficient operation of all theautomatic system functions required by this specification. Software shall be modular indesign for flexibility in expansion or revision of the system. It is the intent of thisspecification to require provisions of a system which can be fully utilized by individualswith no, or limited, previous exposure to PC's and programming techniques andlanguages. If the system to be provided requires the use of any modified BASIC, "C",PASCAL, or DRUM Language program, or writing "line" programming statements tomodify operation or strategy in the system, the vendor shall provide unlimited, no charge,software modification and support for a period of five (5) years after the completion ef theproject in addition to the warranty period specified elsewhere. Systems which are factoryprogrammed are unacceptable.

The software shall include a General Purpose Operating system, as well as BuildingAutomation System Application software. All available vendor work station applicationsoftware shall be provided with the system, and shall reside in each and every PC."Unbundled" software packages where the vendor can charge the user extra fees, orrequire dedicated work stations, or require system reheating for access, areunacceptable.

The software in the system shall consist of both "firmware" resident in the PCU/NCU'sand "software" resident in the operator work stations. The architecture of the system, andthe application sofb,vare/firmware shall be distributed with no single system componentresponsible for a control function for the entire Controller LAN. Each PCU/NCU shallcontain the necessary firmware and I/O capability to function independently in case of enetwork failure. No active energy management or environmental control sequences shallbe resident in the PC work stations. All PC work stations shall be removable from the

system without loss of centre] function - only alarm menitoring• long term historycollection, end operator monitor/command/edit functions would be lost.

3.02 OPERATING SYSTEM

The operating system for the operator work stations shall be capable of supporting thefollowing features:

1, Memory map support with memory protection

2, Input/Output control

3. Power failure and automatic restart

4. Multiple partitions

5. Multi-tasking disk support

6, Concurrent foreground-background operations

Task scheduling in the operating system shall be event driven

Section 23 09 23 - Direct Digital Control System - Page

3.03 BUILDING MANAGEMENT SYSTEM SOFTWARE

The primary operator interface to the system shall be through a graphical, "objectoriented", interactive presentation using a mouse and cursor for object selection andcommends,

The cursor shall be a "floating arrow", with software support for homing-in to thenearest object, when the display is complex or detailed.

2. The system shall support "op-up" windows for point commands end editing.

The system shall be based on interactive prompts and choices, using "dialogboxes" as opposed to memorization of commands, "syntax", exact spellings, etc.This interactive prompt and choices approach shall be used in monitoring,issuing commands, and editing. Command choices shall be as simple as"clicking" the cursor over the correct word choice prompts (ie, ON OFF), withouttyping in the letters. Editing mode choices shall prompt with ranges or options (ie,16 CHARACTERS for point name, or D•RECT/REVERSE for action).

Dynamic Graphic Flow Chart Programming:The operator shall have the ability to construct "dynamic" graphic flow charts ofsystem control sequences, while the system is on-line. This flow chart utility shallbe usable both for on4ine control logic development (ie, programming), and forlive displays of the interactive process variables occurring throughout thesequences of operations. Flow chart elements shall consist of "Icons" selectedfrom a "toolkit". Discrete Icons shall exist for:

Each point type (AI, DO, etc.)Each DDC Module or Block

2)3)4)5)

7)

8)g)

Analog output PIDFloating output PIDTwo position output (thermostatic control)Reset (with secondary input bias)High/Low selector (4 input, dual output)Re•ayRelay, Delay before breakRelay, Delay before makeRelay, Interval timer

c, Each Application program appended to a point

t ) Calculations2) Event sequences3) Time schedules4) Demand control5) Trend6) Runtime7) Consumption8) Alarm inhibit/enable9) Secondary LAN control (AHU, Heat Pump, VAV, PID)

d "Lines" (values passed between DDC modules or points)


e. Pages

The cursor and mouse shall be used to place the Icons on the graphic, and toconnect the Icons (where meaningful) with "lines". "Lines" shall display thecurrent state or value of data passing between icons, or Modules.

Text may be inserted into the graphic to describe the sequence ofoperation in sentence format. Once completed the graphics shall be ableto be printed out for permanent records.During and/or after completing construction of the dynamic graphic flowchart, the cursor may be placed on the Icon, and by "clicking" the mouse,the Icon may be exploded into the associated database editor for adding,deleting, or modifying the paint, module, or application program.Similarly, the point may have its "pop-up" window called up to issue pointcommands, or overrides. Systems requiring graphic programminglanguages which are off-line, or require time delays for compiling, orwhich are not integrated into the primary operator work station are notacceptable.

Zoom

It shall be possible for an operator to locate any system point to monitorstatus, issue commands, or edit associated database without knowledgeof the point's name, address, or associated controller, and without havingto refer to a "tree" directory. The operator shall be able to zoom in on abuilding in a campus graphic, zoom in on a floor in a building graphic,zoom in on a system in a floor plan graphic, etc.

The system software shall be compiled for faster execution speeds and shall offer all ofthe following features and capabilities:

1, Input/Output Capabilities:

From any local PC work station or any remotely connected PC work station, thesystem operator shall have the capabilities through the keyboard/mouse to:

Request dynamic displays of current values or status using a tabular orgraphic format. A global database sort utility shall allow an expandedtabular display of only the points on the current graphic display. Thisexpanded tabular display shall list point name, hardware address,dynamic state or value, alarm status, override status, and test modestatus.

Command selected equipment to a specified state.Initiate logs and reportsChange analog limitsAdd, delete, or change points within each PCU/NCU or applicationroutine.

Change point I/O descriptors, status, and alarm descriptors andengineering unit descriptors while the system is on-line.Add new PCU/NCUs and SLCs to the system while the system is on-line.Modify and set up maintenance scheduling parameters.Develop, modify, delete or display full range of colorgraphic displays

Section 23 09 23 - Direct Digital Control System = Page 13

providing dynamic, animated displays. All development, editing anddisplay work shall be performed with the system fully on line and in fullcommunications with the Controller LAN.

Select discrete or analog sample data from the field to be automaticallyarchived in the assigned work station. This archiving shall occur even ifthe Secondary LAN is running third party software such as wordprocessing or electronic spreadsheets.A comprehensive report writer capability shall be provided in each workstation to sort and extract data from the archived files and to generatefinished custom reports. Reports shal• be capable of manual initiationand/or printout as well as automatic printout. The system will have thecapability to print reports on a dally, weekly, monthly, yearly or scheduledbasis. This report writer shall provide the capability for statistical datamanipulation and extraction. As a minimum the custom report writermust provide the capability to generate four types of reports: 1) Statisticaldetail reports, 2) Summary reports, 3) Trend graphic plots for up to fourvariables, 4) xoy graphic plots.

1)

2)

This report function shall be "on-line" for both development andprintout, and shall not require export to a third party spreadsheetprogram for execution.In addition to this "on-line" function, the historical database shall

be capable of being converted to Data Interchange Format (DIF)for use in third party spreadsheet programs such as Lotus 1-2-3,for off-line manipulation. Transmission to DIF files shall bemanual or automatic based on operator selectable parametersincluding: time of day, frequency (daily, weekly, monthly, yearly),scheduled days (32 days minimum). File transfer shall support"appending" new data to the existing file data.

Support two printer operations. The alarm printer will print all alarmannunciations and return to normal, operator acknowledgements, actionmessages, system alarms, operator sign-on and sign-off. All operatorcontrol activities shall include the operators initials in the printed and diskrecord.

1) The data printer will be reserved for printing reports, page prints,and data base prints. Both printer functions shall be availablefrom any PC work station.

The operator will have the option of selecting daily, weekly or monthly asa scheduled frequency to synchronize time and date in Process ControlUnits from the PC workstation. This function will be performed for dial upas well as direct connected locations. This program shall accommodateautomatic daylight savings time adjustments.

The operator may print a selected Process Control Unit data basewhenever desired. The operator shall be able to select any or all controlparameters as needed. A "bindable" printout of the database of eachPCU/NCU (including SLCs), with a floppy disk backup shall be submittedwith "aa-builts" as par• of the final acceptance procedure.

The CRT shall have a feature to indicate audibly and visually, Off-Normal


conditions and messages pending, whether in BAS operating mode orthird party software mode.

The operator may request a summary of all points on the Controller LANcurrently in the "test" mode or in an off-normal condition.

Operator Access:

Operator access to the BAS shall be via software password at every PC work station andat each PCU/NCU. Over f000 passwords/operators shall be supported. The owner willnot be constrained to fixed password levels, but may enable any or all the followingfunctions for any operator:

COMMAND FUNCTIONS

* View graphic pagesPoint monitor

Point contro•

* View summaries

Test-on,"Test-off

Alarm acknowledgementManual override

Exit from BAS to DOS

DATABASE FUNCTIONS

* Passwords

* Report generator* Message routing* PCU/NCU database save

* Holiday schedules* Time schedules

* Calculations

* Secondary LAN controllerparameters

Graphic pagesTrend samplingOff-line database editingOn-line database & restore editingDDC control modules

Event sequencesDemand control parameters

Runtime parameters

Data Base Creation and Support:

The intent of this specification is to provide an BAS system which will allow the owner toindependently perform his own modifications to the system from any operator workstation. All changes shall be done utilizing standard procedures and must be capable ofbeing done while the system is on-line and operational. The PCU/NCU on the ControllerLAN shall automatically check a PC work station's data base files upon connection toverify a current data base match. A utility shall inform the operator if the PCU/NCU'sdatabase files do not match the backup files stored on the PC workstation, along with thedate of last PCUINCU modification and date of last backup. The owner must have as a

minimum, the on line capability to:

Add and delete points

2. Modify any point parameter,

Determine which PC work station(s) points will be directed to, on a point by pointbasis.

4. Change, add, or delete English language descriptors (i.e., name). System I/O


points may be identified either by name o_/r by it's logical address, Up to 16characters shall be available for the English language descriptor, which shall beused in all control sequences. Use of a second abbreviated point "name" forcontrol sequences is unacceptable complexity.

Add, modify, or delete alarm limits.

6 Add, modify, or delete points in start/stop programs, trend logs, etc.

Create custom relationship between points. A general purpose user utility shallbe provided, such that the user can implement software interlocks, calculations,etc.

Assign application programs to points (as opposed to assigning points toprograms).Obtain an "audit trail" of which application programs are controlling an individualpoint, on a point by point basis.

10. Create and/or modify DDC loops and parameters,

11. Create and/or modify override parameters.

12. Add, modify, and delete any applications program.

13. Add, delete, develop and/or modify custom dynamic color graphic displaysutilizing either custom symbols or system supported library of symbols. Graphicsshall support at least sixteen (16) colors and not lees than sixty (80) outputs ofreal time, live dynamic data per graphic. The system shall allow this dynamicgraphic data to be displayed as an animated symbol (i.e,, when a pump starts thepipe fills up with water), an ASCII set (Le., on-off), a decimal (i.e,, 96.3F), or as ananalog bar graph. Each operator work station shall support not less than 1,000separate graphic pages. This contractor shall include fifteen (15) developedgraphics as approved by the owner's representative for this project, The followinggraphic pages shall be provided as a minimum:

Index page of all graphics, with direct selectionFloor plan of each floor, with zone temperaturesSchematic of each unique system, with values and status

t4. Select a graphic screen refresh rate between 1 second refresh and 60 secondrefresh rate.

Operator Work Station: Any operator work station shall

Accept data from the Controller LAN on an as needed basis without having toscan the entire network of PCU/NCUs or SLCs for updated point data.

Interrogate the Controller LAN for updated point data when requested by thesystem operator.

3. Allow operator command of equipment connected to PCU/NCUs and SLCs.

4. Allow operator to place specific F'CU/NCUs and SLCs in or out of service.

Section 23 09 23 - Direct Digitai Controi System - Page 16

Allow parameter editing of PCU/NCUs, SLCs, end "gateway" nodes (limited onlyby an individual operator's access assignments).

6• Store duplicate data base on file for every PCU/NCU and SLC and allow this database to be downloaded to the remote panel while the system is on line.

Control or modify specific programs on a per PCUtNCU, or SLC basis.

Develop, store and modify dynamic color graphics utilizing system suppliedmouse and mouse supported software, It shall be possible for both mousesupported work stations and non-mouse supported work stations to coexist onthe same Controller LAN.

Provide data archiving of assigned points throughout the system and to supportoverlaid graphing of this data utilizing up to four (4) variables.

10. To maintain system integrity, the operator shall have available an automaticPCU/NCU save utility. The database of the PCU/NCUs shall be automaticallyuploaded to a work station at 02:00 AM, for backup purposes, This utility willfunction for both direct connect and dial-up work stations.

The BAS shall support not less than 15 operator work stations, each withsimultaneous access to the Local Area Network. Regardless of how the operatorwork stations are connected to the Controller LAN (i.e., hardwired or via modem),the network shall support all specified functions.

Alarm Processing:

The BAS shall have the following alarm processing features, all of which shall be ownerdefinable through the input keyboard:

Each off normal condition shall cause an alarm and an appropriate message,including the time of the alarm, system and point descriptor and alarm condition.The operator shall have the capability to select, at any time, which state/valueshall be considered alarms and which alarms shall cause automatic dial-out to

Occur.

Each critical alarm or change-of-state message shall be displayed. All ControllerLAN network alarm messages shall be stored on disk and may be reviewed onthe CRT and/or printed on operator selected printers at any time. It shall bepossible to sort this alarm/change-of-stata data base by date, time and/or itemfields. An alarm summary may be displayed which shall show all new alarms andindicate which is the "best" graphic page to select to act upon the alarm condition.

Automatic user defined time delay of alarms during equipment start-up orshutdown shall be provided to prevent nuisance and false alarms.

Unique alarm delays on analog and discrete input points to prevent "flutter"alarms.

The operator shall have the capability to route specific alarms to specific workstations, and/or to specific pagers.


Unacknowledged alarms will continue to blink even if they have "returned tonormal". Only operator acknowledgement can remove the blinking alarmindication. Red will signify points in alarm while green will signify points in normalcondition.

Each operator work station will have the ability to notify an operator of an alarmcondition in one or mare points or controllers anywhere in the system. Alarmnotification shall consist of:

a Automatic print of the alarm condition as described above.Display of an ICQN indicating an alarm condition, including while in athird party program.

Operator selectable audible alarm indication. The audible alarm maysound once, constant or not at all, at owners option.

Relay operation at the PC workstation, used to activate notificationdevices where the operator will be too far from the PC to see visualindication, or the environment is too noisy to hear the PC's audible.Provide a strobe light for alarm indication for all PC workstations locatedin central plant areas.

Event Processing:

The BAS software shall have the ability to automatically initiate commands, user-definedmessages, take specific control actions or change control strategy and applicationprograms as a result of an event condition.

An event condition may be an analog high or low value crossing an operatordefined limit, a change=of-state, a specified state, or alarm occurrence, a return tonormal or logical combinations of the above. Events shall not be limited to alarmoccurrences only but shall also include time, dates, as specified system results,All event assignments or modifications shall be owner defined through the inputkeyboard.

H. Automatic Restart:

The PCU/NCU shall include a software program to automatically restart field equipmenton a restoration of power following a PCU/NCU power failure,

An owner defined time delay between individual equipment restart shall beprovided. In addition, the software program shall allow equipment to beenergized or de-energized based upon the time of day stardstop program in effectat the time of power restoration at the PCU/NCU

Messages:

The system shall be capable of automatically displaying or printing a user-definedmessage subsequent to the occurrence of selected events. Events shall not be limited toalarm occurrences. It shall be possible for the owner to construct independent messagesfor each PCUINCU, each with as many as 60 characters. The operator shall be able to:

1. Compose, change, or delete any message

Section 23 09 23 - Direct Digital Control System - Page t8

Display or log any message at any time

Assign any message to any event

Free Form Historical Reports:

An operator shall be able to manually request reports from e console keyboard= Allreports shall have time and date and shall not be limited to "canned" or "standard" format.Data shall be gathered from the fieid LAN's automatically and erchived on owner selected

work stations. The systems shall include a report writer function which supports as aminimum the following functions:

1 Long term data archiving to hard disk.

Automatic directives to download to transportable media such as floppy diskettesor tapes for storage.

Data selection methods to include data base searchs, sorts, and manipulation

4. Data extraction shall support mathematical manipulafion

Data reports shall allow development of XY curve plotting, tabular reports (bothstatistical and summary),and multi-point timed based plots with net less than four(4) variables displayed.

Generating reports either normally at operator direction, or automatically underPC directions,

Prepared Historical Report:

Provide an on4ine, historical, database sort report utility, with the following features:

Prompts to select data base sort by time, by date, by point (or range of points)with system supplied default values of 24 hours, today, all Controller LAN points,respectively.

Prompts for activating "conditional" sorts, including: changes=of-state, alarms,returns to normal, operator sign on/off, operator acknowledgements, commanderrors, program control of a point, test on/off, manual on/off, program control(ATC, Demand, Event) override, power restore, LAN reconfiguration, controller offline, time/date modifications, and archive disk memory 90% full, 95% full, and full.

Single keystroke retreival resulting in a repor• listing the most recent conditionfirst, along with the time, date, address, name, condition type, and value.

Parameter Save/Restore;

The most current operating system including the most current parameter changes andmodifications will be stored on disk or diskette.

M. Data Collection:

The operator work station shall have the ability to automatically collect and stere in disk


files the following information:

Daily KWH consumption, peak demand, and time of peak demand for up to 32KWH meters over a 2-year period.

2. Daily consumption for up to 30 meters over a 2-year period.

Daily billable exclusive and shared override KWH consumption and billableoverride time as well as non-billable exclusive and shared override KWH and non-

billable override time for up to 1024 zones over a 10-year period.

Provide archiving of stored data for use with system supplied custom reports,(i.e., it shall be possible to request the status of a temperature be•een 10/1/gland 10/3/91 on an hourly basis).

Archiving to disk shall automatically occur as long as the PC work station is ONand physically capable of communicating with the Controller LAN(s), regardless ofwhat programs are currently being executed at the time data is needed to bestored to disk (i.e,, an operator can be developing a financial spread sheet inLOTUSTM when the BAS stores field trending information to disk--the current

LOTUSTM program shall not be interrupted or halted) for archiving.

N. Graphic Display:

On-line graphic development shall be supported on all work stations connected to theLAN either as "hard-wired" direct connect or via remote dial-in. The system shall support

any mix of mouse supported work stations or non-mouse work stations.

The systems graphic software shall provide the following minimum features:

"Page Linking" such that it is possible to "zoom" into a specific AHU or any otherpage through a sequence of graphics without using anything but the systemmouse.

2. Generate, store, and retrieve library symbols for use in generating graphic pages.

3. Single or double height characters.

Sixty (60) dynamic points of data per graphic page.

Pixel level resolution. Graphics will be displayed on EGA monitors with a 640 X350 resolution, and on VGA monitors with a 640 X 480 resolution, minimum.Color selections will be made from a color bar consisting of 16 colors, with

adjacent text description.

Animated objects for discrete points (i.e, when a pump starts, the pipe fills withwater or when a damper shuts it goes closed on the screen).

Analog bar graphs for analog points. The operator shall be able to locate up to 60bar graphs per graphic page, with options as to bar graph color, dimensions,horizontal/vertical orientation, and limit values.

8. The real time value of each input or output from the PCU/NCU's DDC control


block modules shall be dieplayable on the color graphic.

9. .An on-line "Draw" utility with a "toolkit" containing the following

? Library Symbols * Fill * Page Links? Line * Undo * Point Values

? Box * Move * Line Values

? Circle * Delete * Arc

Provide for import of .PCX file format graphics developed in third part,] programssuch as Paintbrush= Such imported graphics shall be used as a "backdrop", sothat all other dynamic and animated system features may be superimposed onthis graphic. Similarly, it shall be possible to import CAD type drawings, by firstconverting the CAD drawing from .DXF format to .PCX format.

O. Maintenance Management:

Each PCU/NCU, acting in conjunction with the operator work station's graphic displays,shall support a maintenance management program on all specified points. This programas a minimum shall provide the following:

Discrete run time monitoring on per point basis. Run time shall be able to beaccumulated on two basis - since the beginning of time, and since last reset.

Maintenance scheduling targets on specific equipment with auto annunciation,auto scheduling and auto shutdown.

Equipment safety targets which generate an alarm or user defined message if theequipment has not been serviced and cleared in time. The program shall alsoallow automatic shut down of the equipment if the safety •imit is exceeded.

4 CRT display of maintenance material needed including estimated labor.

& Single command reset on a per point basis.

P. Context Sensitive Help Screens:

Provide a dedicated function key which will call up a context sensitive help screenassociated with the current keyboard/mouse input.

Q. Application Sensitive Help Screens

Provide the capability to develop help screens tailored to job specific applications. Thesescreens shall be displayed by selecting an Icon from an associated graphic display.

3.03 PCU/NCU/SLCI APPLICATION ROUTINES

A. General:

A PCU/NCU shall include various software packages, each of which performs aspecialized application routine. All of the application routines listed shall be inter-active,compatible with and capable of global operation as necessary. The use of any applicationroutine shall not cause any other software to malfunction.


Demand Monitoring and Load Shedding:

Each PCU/NCU supports a program designed te control the electrical "demand" due topeaks in electrical energy consumption.

The Demand program shall operate in a global fashion and shall be able tocontrol outputs in any PCU/NCU or SLC to maintain the Demand setpoint,regardless of which panel the meter is connected to. Systems using a demandprogram that does not operate in a gbbal fashion are unacceptable under thisspecification. Systems containing multiple Controller LANs shall have this globalfunction occur between LANs as well.

The input to this program shall be a pulse count from the incoming power meterconnected directly to a pulse accumulator in a PCU;NCU.

Forecast demand (KW) shall be predicted by the sliding window method,

The system shall provide a minimum of 3 demand targets per demand meter.The system shall automatically change targets based upon (1) time, (2) status ofpro-selected points, or (3) temperature.

Each lead shall not only be assigned a load shed priority, but will be assigned aminimum "ON" time and a maximum "OFF" time. All loads in any one prioritylevel will be shed before loads of the next priority level will be shed, Loads will beshed and restored on a "round-robin" basis, All parameters shall be operatorselectable and displayable via the CRT, The system shall provide for a minimumof seven priority levels.

Equipment connected to Secondary LAN Controllers (SLCs) will havetheir occupied deadbands widened in lieu of shedding the loads.

Demand forecasting shall be by the "sliding window" technique. "Ideal rate","instantaneous" or other non-forecasting demand programs using analog valuesfor KW are not acceptable under this specification.

To avoid overcorrection (oscillation) by shedding and restoring loads for minorperturbations, a control band (upper and lower limit) shall be included so that theload will be shed when the upper limit is exceeded, and restored when the lowerlimit is reached.

A printed message shall be generated when the demand target upper limit isexceeded and all priority loads have been she& The demand exceeded alarmwill also show on the CRT.

Maximum demand and its time of occurrence, and energy consumption for the

day shall be stored at midnight. Monthly consumption shall be stored and reseton a user selected day.

Automatic Time Scheduling (ATS);

Each PCU/NCUISLCI shall provide self-contained ATS programs for automaticstart/stop/scheduling of building loads. Each ATS program shall support up to seven (7)


normal day schedules, seven (7) "special day" schedules and two (2) temporary dayschedules. The special days schedule shall support up to 30 unique date/durationcombinations. Each load shall support an individua• time program, as a minimum.

Each load shall be able to be assigned at least 18 control actions per day with 1minute resolution. Operator selectable time schedule operation choices shallinclude the following: 1) Start, 2) Optimized Start, 3) Stop, 4) Optimized Stop,5) Cycle, 6) Optimized Cycle.

A minimum of 30 holiday periods up to 99 days in length may be specified for theyear.

It shall be possible to create "temporary" schedules up to a week in advance thatwill be in operation only on the day or days specified.

Support a temporary "special day" date and duration to be broadcast to selectedor all sites to account for unusual situations such as temporary operating hours or

"snow days".

In addition to individual load scheduling, provide for group scheduling bydesignating equipment to be linked to a "master" time schedule, for quickschedule changes of large groups of equipment which follow a commonschedule. The master schedule shall provide a choice of fixed start and stoptimes by day, or plus and minus adjustments to the existing schedule, in minutes.Master schedules shall provide a choice of immediate activation or activation at a

later date and time.

Support control actions to be performed at any operator selectable time of day aswell as at "sunrise" and "sunset". Sunrise and sunset parameters shall beselectable based on time zone, latitude, and longitude.

"Distributed" Start/Stop Time Optimization (SSTO):

Each controlled point shall include an adaptive, self learning, software program to performoptimized start-up and/or shutdown of selected equipment. The SSTO program shallstart HVAC equipment at the latest possible time and still allow the equipment to achievethe desired zone conditions by occupancy time. The SSTO program shall also shut downHVAC equipment at the earliest possible time before the end of the occupancy period,and still maintain desired comfort conditions.

The SSTO program shall perform optimized start/stop as a function of outsideconditions and individual inside conditions. The SSTO program shall be adaptive,self4uning with the capability to adjust to changing conditions unattended.Systems using global optimization based on "representative" inside conditions arenot acceptable.

The system operator shall be able to, for each point under control of the SSTOprogram, establish and modify the following parameters:

The occupancy periodThe desired temperature at the beginning of the occupancy periodThe desired temperature at the end of the occupancy periodThe maximum earliest start allowed prior to the scheduled start of the


occupancy period, The actual system calculated time to start shall bedisplayable as a system value.

The Central Plant shall be stetted as the result of the first zone being activated byits distributed

SSTO program - not by a separate time based or optimized program,

Duty Cycle Control (DCC):

Each PCU/NCU shall include a software program to perform Temperature CompensatedDuty Cycle Control. The DCC program shall periodically stop and start loads, based onspace temperature, and according to various On/Off patterns. This temperaturecompensation consists of modifying the off portion of the cycle based on operatorspecified comfort parameters. The total cycle time shall be maintained by increasing theon portion of the cycle by the same amount that the off portion is reduced. The resultshould be a net reduction in both the electrical demand and the energy consumed. The

BAS operator shall be able to set and modify the following parameters for each individualload.

Minimum and maximum Off time

On/Off time in one minute increments

3. Time period from beginning of interval until load can be cycled

4. Manually override the DCC program and place a load in an On or Off state

5. Cooling Target Temperature (degs.) and Differential

Heating Target Temperature (dogs.) and Differential

7, Cycle off adjustment (min./deg,) for both cooling and heating target temperatures

Night Setback/Setup Program:

Each PCU/NCU and SLC shall provide software to automatically reduce the heatingspace temperature setpoint or raise the cooling space temperature setpoint duringunoccupied hours. The night setback program shall be operated in coniunction andcoordinated with the scheduled start/stop and optimum starb'stop programs.

G. Calculated Points:

Each PCU/NCU/SLCI shall provide the operator a means of defining calculations andtotalization computed from monitored points (analog/digital points), constants, or othercalculated point& Calculations shall be executed at the uniquely assigned point scanrates.

The operator shall be able to employ any of the following arithmetic, algebraic,Boolean and special function operations to define the computation:

add square root greater thansubtract and less than


multiply or equalsdivide not not equalnegate month greater than or equal today year less than or equal tominute hour minutes past midnightday of week exclusive or enthalpydewpoint relative humidity

Numeric values generated from the calculations shall be treated like any otheranalog value in that alarm limits may be assigned to them. These values may beused in any PCU/NCU/SLCI on the controller LAN for any function that a"hardwired point" might be used (i.e., control sequences, setpoints, targets,

Event Initiated Programming (EIP):

Each PCU/NCU/SLCI shall provide event initiated programs. An event may be initiated byany data point. Triggering an EIP shall cause a series of control actions in a sequence,i.e., if point A reaches a Hi alarm, start pumps 1 thru 12. Up to 25 sequences can bedefined. Each sequence may cause up to 16 control actions. Sequences may bechained together.

The time interval between each control action shall be operator definable frombetween 0 to 3600 seconds. Each motor may lock out associated analog alarmswhen the motor is Off by programming each desired analog point for alarmdisable.

2. The output of a sequence may be an analog value.

The programming shall provide for "skip" logic without requiring any programmingcode or machine type language input.

The system shall have the ability to verify completion of one action beforeproceeding to the next sequential action. If proper states are not verified the EIPshall be able to skip to an operator specified next action.

Direct Digital Control (DDC) Modules;

Each PCU/NCU shall provide "Block" or "Modular" programming software so that theoperator can easily develop custom control strategies and sequences of operation,without learning a programming language.

Control loops and sequences shall be defined using "modules" that areanalogous to traditional pneumatic or electric control devices. Modules may belinked together to form more complex control strategies. The use ofmathematical equations, "BASIC", or proprietary programming languages fordefining a DDC control loop is unacceptable.

The following types of modules shall be supported in firmware for each PCU/NCUin the system:

a PID controller with analog output or PWM outputPID controller with floating (paired) output

Two-position controller

Section 23 09 23 - Direct Digital Contro• System - Page 25

gh,

Primary and secondary reset schedule selectorHi/Lo signal selectorSingle pole double throw releySingle pole double throw time delay relay with delay before break, delaybefore make end interval time capabilities

Should a sensor fail or be taken out of service, the DDC program shall execute auser defined failsafe output.

The value or state of each of the lines which interconnect DDC modules shall be

displayable on the CRT graphic pages to allow logic diegrems of the DDCstrategies to be shown with actual values,

Self Tuning PID Loops:

Three methods of tuning PID Loops shall be available: Manual, Automatic, and Adaptive.To assist the operator in tuning a PCU/NCU with Direct Digital Control PID or floatingloops, a "tuning" utility shall be provided that will allow the collection of data and tuning ofthe process in real time.

The tuning utility shall display the following information on the CRT upon operatorrequest:

Control loop being tunedInput (process) variableOutput (control) variableSetpoint of loopProportional bandIntegral (reset)Intar,zalDerivative (rate) Interval

The above information shall be displayed on any PC work station CRT in agraphical format with automatic scaling such that the input and output variable aresuperimposed on a graph of "time" vs. "variable". This program shall allow theoperator to affect the output variable by modifying the setpoint, gain, etc., andview the results on the display. In addition to viewing the results on the CRT, itshall be possible to print the module parameters being tuned with the graph whileit is being tuned.

Automatic Tuning: Provide PCU/NCUs with an on-line utility which may bemanually turned on to "disturb" the process. This utility shall then monitor theresults and calculate new parameters for sample interval, Proportional gain,Integral gain, and Derivative gain. This utility shall be usable during thecommissioning process to establish reasonable values, then turned off.

Adaptive Tuning: Provide PCU;NCUs with an on-line utility which may runcontinuously. Adaptive tuning shall be initiated automatically whenever anoperator defined change in the process (input) variable is detected. This utilityshall monitor the process (control loop) after a natural disturbance, andautomatically recalculate the Proportional gain, Integral gain, and Derivative gain.This utility shall be used to keep a system tuned, as the equipment ages andoccupancy and loads change, after commissioning.


PART 4

4.01

Self Tuning Parameters: Provide the following operator selectable self tuningparameters to support automatic and adaptive tuning:

Adaptive control enabling point: The system point whose statusdetermines whether adaptive control is enabled or disabled.Maximum bump: Output step change required to produce a change inthe input, greater than the noise level, but not so great as to damageequipment.Settling time: The time it takes the PtD input (process variable) to settledown after a process disturbance. For automatic tuning, the time intervalbetween setting the PID output to the control point and the beginning ofthe tuning cycle. For adaptive tuning, the minimum time that will beobserved between parameter calculations.Maximum overshoot: Percent allowed

Target damping: The desired reduction in the process variable overshootfrom the first overshoot (maximum overshoot) to the second, in percent.Noise band: The minimum process variable perturbation that will initiatean adaptive calculation of the P•D parameters, in percent of the inputrange.

Trend Logging:

Each PCU/NCU/SLCI in the system shall contain a trending program that will storesamples of all of the PCU/NCU/SLCI data points. The trend log file will be updated inmemory continuously at discretely assignable intervals by the trend program. As thePCUINCU/SLCI data files begin to fill, the PCUINCU,'SLCI shall have the capability toautomatically initiate an upload request and shall then store the data on hard disk forfuture use. The trending program may also be "time synchronized" to start sampling at anoperator specified time each day and cease sampling at operator specified end times.The sampling on the trend interval established by the operator shall allow sampleresolution of one minute. Sampling shall allow co=ordination with the "on" state of aspecified point, i.e., sample when "on", cease to sample when "off'.

It shall be possible to display the trend samples for each PCU/NCU/SLCI in thesystem from the operator's work station in a graphic format. The trend graphshall be automatically scaled and shall display at least 60 samples of data in aplot of time vs. data on the operator work station= It shall be possible to print thegraph at any time while being displayad on the CRT.

A systemwide twelve point trend log shall be available. This trend log shallsupport operator selected sample intervals, print intervals, print start times, andprint stop times.

EXECUTION

SEQUENCE OF OPERATION

General Requirements

Space Local indication: When an IDS (indicating digital sensor) is specified, theIDS shall display digital readouts of temperature and temperature setpoint. Theoperator shall delete these readouts from the District Central Workstation on anindividual IDS basis as desired. The operator shall, at the workstation, assign


individual passwords for each IDS to allow specific people to access that IDSdata locally,

Local Override Buttons: Where specified, provide local override buttons, with the1 Hour software override times.

Space temuerature sensor locat adjustment: Where specified, provide atemperature setpoint adjustment that can be limited in software to plus or minus 2Deg F adjustment range from aetpoint,

Actuators: All valve and damper actuators shall be electronic bjpe, Only OAdamper actuators need to be spring return.

DDC Out#uts: Separate DDC outputs will be provided for each valve, damperactuator.

DDC Control: All sensors and actuators specified below shall beControlledimenitored by the direct digital control system. Thermostats andhumidistats wired to actuators will not be allowed unless specified that way.

After hours and Unoccupied Periods: Provide night building low limits of 50 DegF and night high limits of 85 Deg F. Provide dewpoint calculations in softwarefrom the Space humidity sensor readings and display dewpoint readings on thegraphics pages for each humidity sensor, Dewpoint high limit unoccupied shallbe 62 Deg.

Pulse contacts:

a. Electric utility meter: The main electric utility meter with terminal stripshall be as specified in division 26, The controls contractors shall connectto the terminal strip and through DDC software shall provide KWHconsumption values and calculated instantaneous KW based on themeter's KWH;pulse value, Demand values shall be continuouslycalculated and displayed on the graphics page at the central workstation.

Domestic water meter: The water meter with terminal strip shall be as

specified in division 22. The controls contractors shall connect to theterminal strip and through DDC software shall provide domestic waterflow values, based on the meter's gallons/pulse value, that shall becontinuously calculated and displayed on the graphics page at the centralworkstation

Sequence of Operations and 1/O Summaries

1, Refer to sequences and I/O summaries shown on the plan drawings.

4,02 ALAMO COLLEGES WORKSTATION GRAPHICS

Equipment Graphics: Provide color graphic system displays of all system point andapplication data as described in the control sequences and I/O Summaries. All data shallbe dynamic live data that automatically updates on a regular basis,

B• Provide simplified floor graphics for the areas covered in this specification, The roomnumbers on the construction documents may not be the actual numbers used, verify


room numbers with the Owner.

C. Graphics shall match manufacturer's existing Alamo Colleges graphics.

4.03 WEB ACCESS

Additional to wide area network communications over the Alamo Colleges District WAN,the bidder shall provide Web access at this building, including required hardware andsoftware.

Owner shall be able to monitor and control all points specified on this project by accessingthe internet anywhere in the world. Special software shall not be required at the remotePC other than standard internet software.

C. Password access shall be provided.

Graphics creation is not required. Text type display is acceptable as long as monitor endcontrol is provided.

Coordinate with the technologies department at ALAMO COLLEGES in setting up Webaccess within the District's private WAN.

4.04 COMMISSIONING

4.05

Control system to be set up and checked out by factory trained competent techniciansskilled in the setting and adjustment of BAS equipment used in this project, Thistechnician to be experienced in the b•'pe of systems associated with this BAS.

At time of final observation, demonstrate the sequence of operation for each system to

Architect. Perform system demonstration as directed by Owner and Architect.

TRAINING

Provide a minimum of 16 hours of instruction to Owner's personnel in two eight hour

sessions in the operation and maintenance of the control system. Provide training afterthe system has been installed and checked out.

4.06 WARRANTY

At completion of final test of installation end acceptance by Owner, provide any serviceincidental to proper performance for a period of one year.

Equipment shall be warranted for one year (inciuding defects in workmanship andmaterial) under normal use and service. During warranty period supplier shall alsoreplace or repair, free of charge, any equipment proven to be defective in workmanship ormaterial.

Certain electronic devices not manufactured by the BAS supplier, such as computers,

printers and CRT's display, shall carry the original manufacturers warranty. Pass anyregistration and warranty documents and warranty rights to the Owner.

END OF SECTION

Section 23 09 23 = Direct Digital Control System - Page 29

PART t

1,01

1.02

GENERAL

SUMMARY


1,

2,

A=

Heating water piping, above ground

Chilled water piping, above ground.

Equipment drains and over flows.

4. Unions and flanges.

5. Pipe hangers and supports

6. Valves,

Related Sections:

t, Section 07 84 00 - Firestopping: Product requirements for firestopping forplacement by this section,

2 Section 08 31 13 - Access Doors and Frames: Product requirements for access

doors for placement by this section,

3 Section 09 90 00 - Painting and Coating: Product requirements Painting forplacement by this section.

4 Section 23 05 29 - Hangers and Supports for HVAC Piping and Equipment:Product requirements for pipe hangers and supports, sleeves, [and firestopping]for placement by this section.

5. Section 23 05 53 - Identification for HVAC Piping and Equipment: Productrequirements for pipe identification for placement by this section.

6. Section 23 07 00 - HVAC Insulation: Product requirements for Piping Insulation

for placement by this section.

7. Section 23 21 16 - Hydronic Piping Specialties: Product and executionrequirements for piping specialties used in heating and cooling piping systems.

8 Section 23 25 00 = HVAC Water Treatment: Product and execution requirements

for cleaning and chemical treatment of heating and cooling piping systems.

REFERENCES

American Society of Mechanical Engineers:

1. ASME B16.3 - Malleable Iron Threaded Fittings,

2. ASME B16.4 - Gray Iron Threaded Fittings.

Section 23 21 13 - Hydronic Piping = Page 1

& ASME B1 &18 - Cast Copper Alloy Solder Joint Pressure Fittings,

4, ASME B16.22 - Wrought Copper and Copper Alloy Solder Joint PressureFittings,

5. ASME 831.1 - Power Piping.

8. ASME 83i.9 = Building Services Piping.

7. ASME Section IX - Boiler and Pressure Vessel Code - Welding and BrazingQualifications.

ASTM International:

l ASTM A53/A53M - Standard Specification for Pipe, Steel, Black and Hot-Dipped,Zinc-Coated, Welded and Seamless,

2 ASTM A234/A234M - Standard Specification for Piping Fittings of WroughtCarbon Steel and Alloy Steel for Moderate and High Temperature Service,

3. ASTM A395;A395M - Standard Specification for Ferritic Ductile Iron Pressure-Retaining Castings for Use at Elevated Temperatures.

4. ASTM A536 - Standard Specification for Ductile Iron Castings.

5. ASTM B32 - Standard Specification for Solder Metal.

6, ASTM 888 - Standard Specification for Seamless Copper Water Tube.

7, ASTM B584 - Standard Specification for Copper Alloy Sand Castings forGeneral Applications.

8 ASTM D'1784 - Standard Specification for Rigid Poly (Vinyl Chloride) (PVC)Compounds and Chlorinated Poly (Vinyl Chloride) (CPVC) Compounds.

9 ASTM D1785 - Standard Specification for Poly (Vinyl Chloride) (PVC) PlasticPipe, Schedules 40, 80, and I20.

"•0, ASTM D2235 - Standard Specification for Solvent Cement for Acrylonitrile-Butadiene-Styrene (ASS) Plastic Pipe and Fittings,

It ASTM D2241 - Standard Specification for Poly (Vinyl Chloride) (PVC) Pressure-Rated Pipe (SDR Series).

12• ASTM D2310 - Standard Classification for Machine-Made "Fiberglass" (Glass-

Fiber-Reinforced Thermosetting-Resin) Pipe.

13. ASTM D2464 - Standard Specification for Threaded Poly (Vinyl Chloride) (PVC)Plastic Pipe Fittings, Schedule 80,

14. ASTM D2466 - Standard Specification for Poly (Viny• Chloride) (PVC) PlasticPipe Fittings, Schedule 40.

15. ASTM D2467 - Standard Specification for Poly (Vinyl Chloride) (PVC) P•astic

Section 23 21 t3- Hydronic Piping - Page 2

Pipe Fittings, Schedule 80.

16 ASTM D2564 - Standard Specification for Solvent Cements for Poly (VinylChloride) (PVC) Plastic Piping Systems.

17 ASTM 02880 - Standard Specification for Acrylonitrile-Butadiene-Styrane (ABS)and Poly (Vinyl Chloride) (PVC) Composite Sewer Piping,

18 ASTM D2751 - Standard Specification for Acrylonitrile-Butadiene-Styrene (ABS)Sewer Pipe and Fittings.

19, ASTM D2855 - Standard Practice for Making Solvent-Cemented Joints with Poly(Vinyl Chloride) (PVC) Pipe and Fittings,

20, ASTM D3309 - Standard Specification for Polybutylene (PB) Plastic Hot- andCold-Water Distribution Systems,

21, ASTM F708 - Standard Practice for Design and •nstellation of Rigid PipeHangers.

22. ASTM F845 - Standard Specification for Plastic Insert Fittings for Polybutylene(PB) Tubing.

23. ASTM F876 - Standard Specification for Crosslinked Polyethylene (PEX) Tubing.

24. ASTM F877 - Standard Specification for Crosslinked Polyethylene (PEX) PlasticHot-and Co•d-Water Distribution Systems.

25. ASTM F1476 - Standard Specification for Performance of Gasketed MechanicalCouplings for Use in Piping Applications

American Welding Society:

1. AWS A5.8 - Specification for Filler Metals for Brazing and Braze Welding,

2. AW8 D1.1 - Structural Welding Code - Steel.

American Water Works Association:

1. AWWA C105 - American National Standard for Polyethylene Encasement forDuctile4ron Pipe Systems.

2. AWWA Cl10 - American National Standard for Ductile-Iron and Grey-Iron

Fittings, 3 in. through 48 in. (75 mm through 1200 ram), for Water and OtherLiquids.

& AVWVA Cllt - American National Standard for Rubber-Gasket Joints for

Ductile-Iron Pressure Pipe and Fittings,

4 AWWA C151 - American National Standard for Ductile-Iron Pipe, Centrifugally

Cast, for Water.

Manufacturers Standardization Society of the Valve and Fittings Industry:

1. MSS SP 58 - Pipe Hangers and Supports - Materials, Design and Manufacturer,

Section 23 21 13 - Hydronic Piping - Page 3

3,

4,

5,

6.

7.

8.

9.

MSS SP 67 - Butterfly Valves.

MSS SP 69 - Pipe Hangers and Supports - Selection and Application.

MSS SP 70 - Cast •ron Gate Valves, Flanged and Threaded Ends.

MSS SP 71 - Cast Pen Swing Check Valves, Flanged and Threaded Ends,

MSS SP 78 - Cast •ron Plug Valves, Flanged and Threaded Ends.

MSS SP 80 - Bronze Gate, Globe, Angle and Check Valves,

MSS SP 85 - Cast Iron Globe & Angle Valves, Flanged and Threaded,

MSS SP 89 - Pipe Hangers and Supports - Fabrication and InstallationPractices.

MSS SP 110- Ball Valves Threaded, Socket-Welding, Solder Joint, Groovedand Flared Ends.

.03 SYSTEM DESCRIPTION

A, Where more than one piping system material is specified, provide compatible systemcomponents and joint& Use non-conducting dielectric connections whenever jointingdissimilar metals.

B. Provide flanges, union, and couplings at locations requiring servicing. Use unions,flanges, and couplings downstream of valves and at equipment or apparatusconnections. Do not use direct welded or threaded connections to valves, equipment or

other apparatus.

C. Provide pipe hangers and supports in accordance with MSS SP 69, unless indicatedotherwise.

E, Use ball or butterfly valves for shut-off and to isolate equipment, part of systems, orvertical risers.

F. Use ball or butterfly valves for throttling, bypass, or manual flew control services, unlessnoted otherwise. Use ba;I valves for reheat coil piping. Use butterfly valves for throttlingof chi•led water systems. Use ball valves for {solation service in chilled water systems.

G. Ball valves for balancing shall have memory stops.

H. Use lug end butterfly valves (z 2-1/2") to isolate equipment.

I. Use ball valves with cap for drains at main shut-off valves, low points of piping, bases ofvertical risers, and at equipment.

.04 SUBMITTALS


B. Shop Drawings: Indicate schematic layout of each piping system, including equipment,critical dimensions, and sizes.

C. Product Data:


1 Piping: Submit data on pipe materials, fittings, and accessories. Submitmanufacturers catalog information.

2. Valves: Submit manufacturers catalog information with valve data and ratings foreach service.

3. Hangers and Supports: Submit manufacturers catalog information including loadcapacity.

D. Test Reports: Indicate results of each piping ayatem pressure test.

E. Manufacturer's Installation Instructions: Submit hanging and support methods, joiningprocedures and isolation.

F. Welders' Certificate: •nclude welders' certification of compliance with ASME Section IX.

.05 CLOSEOUT SUBMITTALS

A. Section 01 70 00 - Execution and Closeout Requirements: CIoseout procedures.

B. Project Record Documents: Record actual locations of valves, equipment andaccessories.

C. Operation and Maintenance Data: Submit instructions for installation and changingcomponents, spare parts lists, exploded assembly views.


A. Perform Work in accordance with ASME B31,1 and ASME B31.g code for installation of

piping systems and ASME Section IX for welding materials and procedures.

8 Perform Work in accordance with applicable authority for welding hanger and supportattachments to building structure.

,07 QUAUFICAT•ONS

A. Manufacturer: Company specializing in manufacturing products specified in this sectionwith minimum three years experience.

B• Fabricator or Installer: Company specializing in performing Work of this section withminimum three years experience.

.08 DELIVERY, STORAGE, AND HANDLING

A. Section 01 60 00 - Product Requirements: Product storage and handling requirements.

B. Accept valves on site in shipping containers with labeling in place. Inspect for damage.

C. Provide temporary end caps and closures on piping and fittings. Maintain in place untilinstallation.

D. Protect piping systems from entry of foreign materials by temporary covers, completingsections of the Work, and isolating parts of completed system,

1.09 ENVIRONMENTAL REQUIREMENTS

Section 23 2t 13 - Hydronic Piping - Page 5

PART 2

2=01

A. Section 01 60 00 = Product Requirements.

B. Do not install underground piping when bedding is wet or frozen.


A. Verify field measurements prior to fabricatian.

1,11 COORDiNATiON

A. Section 01 30 00 = Administrative Requirements: Requirements for coordination.

B. Coordinate trenching, excavating, bedding, and backfilling of buried piping systems.

1,12 EXTRA MATERIALS

A. Section 01 70 00 - Execution and Closeout Requirements: Spare pe•ts and maintensnee

products.

PRODUCTS

HEATING WATER PIPING, ABOVE GROUND

A, Steel Pipe: ASTM A53/A53M, Schedule 40, 0.375 inch wall for sizes 12 inch and larger,black,

1. Fittings: ASME BI&3, malleable iron or ASTM A234/A234M, forged steelwelding type.

2, Joints: Threaded for pipe 2 inch and smaller; welded for pipe 2=1/2 inches andlarger.

B. Copper Tubing: ASTM B88, Type L, hard drawn.

•, Fittings: ASME B16.18, cast brass, or ASME B16.22 solder wrought copper.

2. Tee Connections: Mechanically extracted collars with notched and dimpledbranch tube.

3. Joints: Solder, lead free, ASTM B32, 95-5 tin-antimony, or tin and silver, withmelting range 430 to 535 degrees F. or braze, AWS A5,8 BCuPsilver/phosphorus/copper alloy with melting range 1190 to 1480 degrees F.

2,02 CHILLED WATER PIPING, ABOVE GROUND

A Steel Pipe: ASTM A53/A53M, Schedule 40, 0.375 inch wall for sizes 12 inch and larger,black.

1. Fittings: ASME B16.3, malleable iron or ASTM A234/A234M, forged steelwelding type.

2, Joints: Threaded for pipe 2 inch and smaller; welded for pipe 2-1/2 inches andlarger.

B, Copper Tubing: ASTM B88, Type L hard drawn.


2.03

2•04

2.05

Fittings: ASME B16.18, cast brass, orASME B16.22, solder wrought copper.

Tee Connections: Mechanically extracted collars with notched and dimpledbranch tube.

Joints: Solder, lead free, ASTM B32, 95-5 tin-antimony, or tin and silver, withmelting range 430 to 535 degrees F. or Braze, AWS A5.8 BCuPsilverChosphorus/copper alloy with me•ting range 1190 to 1480 degrees F.

EQUIPMENT DRAINS AND OVERFLOWS

A. Copper Tubing: ASTM B88, Type L hard drawn.

1.

2,

Fittings: ASME B16,18, cast brass, or ASME Bt5.22 solder wrought copper.

Joints: Solder, lead free, 95-5 tin-antimony, or tin and silver, with melting range430 to 535 degrees F.

UNIONS AND FLANGES

A. Unions for Pipe 2 inches and Smaller:

1. Ferrous Piping: Class 150, malleable iron, threaded.

2. Copper Piping: Class 150, bronze unions with soldered joints.

3. Dielectric Connections: Union with galvanized or plated steel threaded end,copper solder end, water impervious isolation barrier.

B, Flanges for Pipe 2-1/2 inches and Larger:

1. Ferrous Piping: Class 150, forged steel, slip-on flanges. Use weld neck whereadjacent to fittings.

2, Copper Piping: Class 150, slip-on bronze flanges,

3, Gaskets: 1/16 inch thick preformed neoprene geskets.

C. Grooved and Shouldered Pipe End Couplings:

1. Housing Clamps: Malleable iron galvanized to engage and lock, designed topermit some angular deflection, contraction, and expansion.

2. Sealing Gasket: C-shape elastomer composition fer operating temperaturerange from -30 degrees F to 230 degrees F.

Accessories: Steel bolts, nuts, and washers.

BALL VALVES

A. 2 inches and Smaller: MSS SP 110, Bronze or Stainless steel, two piece body, stainlesssteel ball full part, teflon seats and stuffing box ring, threaded ends with union, leverhandle with balancing stops. Provide handle extension for insulated lines.

Over 2 inches: Cast steel body, chrome plated steel bail, Teflon seat and stuffing box


PART3

3,01

seals, lever handle, flanged= Provide handle extension for insulated lines.

2.06 BUTTERFLY VALVES

A. Body: Cast or ductile iron, lug ends, stainless steei stem, extended neck.

B. Disc: Aluminum bronze= Chrome plated ductile iron or stainless steel.

C. Seat: Resilient replaceable EPDM or Buna N.

D. Handle and Operator: 10 position lever handle or infinite positbn •ever handle withmemory stop. Provide hand-wheel and gear drive with chain-wheel operators for valvesin remote locations,

2.07 PIPE HANGERS AND SUPPORTS

A. See Specification Section 23 05 29 - Hangers and Supports for HVAC Piping andEquipment.

EXECUTION

EXAMI NATION

A, Section 01 30 00 = Administrative Requirements: Coordination and project conditions.

B, Verify excavations are to required grade, dr,,/, and not over=excavated.

3,02 PREPARATION

A. Ream pipe and tube ends. Remove burrs, Bevel plain end ferrous pipe.

8. Remove scale and dirt on inside and outside before assembly.

C, Prepare piping connections to equipment with flanges or unions.

D. Keep open ends of pips free from scale and dirt. Protect open ends with temporary plugsor cap&

E After completion, fill, clean, and treat systems. Refer to Section 23 25 00.

3.03 INSTALLATION - PIPE HANGERS AND SUPPORTS

A Install pipe hangers and supports in accordance with Section 23 05 29.

3.04 INSTALLATION - ABOVE GROUND PIPING SYSTEMS

B.

C=

D.

E,

inetall piping in accordance with ASME 831.9,

install in accordance with manufacturer's instructions.

Route piping parallel to building structure and maintain gradient.

Install piping to conserve building space, and not interfere with use of space.

Group piping whenever practical at common elevations,

Section 23 21 13 - Hydronic Piping = Page 8

3.05

G.

H.

J.

K

L

M

N.

Sleeve pipe passing through partitions, wails and floors. Refer to Section 23 05 29.

Install firestopping at fire rated construction perimeters and openings containingpenetrating sleeves and piping, Refer to Section 07 84 00,

Install pipe identification in accordance with Section 23 05 53.

Install piping to allow for expansion and contraction without stressing pipe, joints, orconnected equipment,

Provide access where valves and fittings are not exposed. Coordinate size and locationof access doers with Section 08 31 13.

Slope hydronic piping and arrange systems to drain at low points. Use eccentric reducersto maintain top of pipe aligned.

Where pipe support members are welded to structural building framing, scrape, brushclean, and apply one coat of zinc rich primer to welds.

Prepare unfinished pipe, fittings, supports, and accessories, ready for finish paintingRefer to Section 09 90 00.

Install valves with stems upright or horizontal, not inverted.

O. Insulate piping; refer to Section 23 07 00,

FIELD QUAUTY CONTROL

A Section 01 4000 - Quality Requirements, 01 7000 - Execution and Closeout

Requirements: Field inspecting, testing, adjusting, and balancing,

Test piping systems in accordance with ASME

END OF SECTION
