section 15010 general provisions · 2016. 12. 15. · general provisions 15010-2 etc. the shop...

GENERAL PROVISIONS 15010-1

SECTION 15010

GENERAL PROVISIONS

10.1 INSTRUCTIONS

A. The General Conditions, Information to Bidders, Special Conditions, and other pertinent

documents issued by the Engineer are a part of the Contract Documents and shall be

complied with in every respect.

B. This Contractor shall examine the general construction drawings, the electrical drawings and

lay out his work accordingly to avoid conflict.

C. THIS CONTRACTOR SHALL VISIT THE SITE IN ORDER TO FAMILIARIZE HIMSELF WITH

EXISTING WORKING CONDITIONS. FAILURE TO DO SO SHALL NOT RELIEVE

CONTRACTOR OF RESPONSIBILITY OF MAKING CHANGES REQUIRED BY

CONDITIONS ENCOUNTERED ON SITE.

D. This Contractor shall conform to standards prescribed by City, County, and State regulations or

ordinances having jurisdiction. Execution of the Contract Document indicates Contractors

knowledge of above regulations or ordinances and any changes that may be necessary to

conform to such regulations or ordinances shall be made by this Contractor without extra cost

to the Owner.

E. This Contractor shall provide all items, articles, materials, operations, or methods listed,

mentioned or scheduled on the Drawings, and/or herein, including all labor, materials,

equipment and incidentals necessary, required, or implied, for the completion of the various

systems.

F. Permits required for the installation of the work, as well as all authorized code inspections,

construction fees, meters and assessments shall be arranged for and paid for by the

Contractor. Final "meter deposits", if required by utility for permanent service, shall be made

by Owner.

10.2 DRAWINGS

A. The drawings indicate the extent and general arrangement of the various systems. If any

departure from these drawings is necessary, descriptions of these departures and a statement

of the reasons therefore shall be submitted to the Engineer for approval.

B. These drawings and specifications shall be considered a part of this Contract. Should an error

or omission occur in either or both the drawings and specifications, or conflict one with the

other, this Contractor shall not avail himself of such unintentional error, omission or conflict, but

shall have same explained to him and adjusted before signing the Contract or proceeding with

the work.

C. Shop drawings and required field drawings shall be prepared by the Contractor in quintuplicate

and hereinafter specified or required by the drawings. Shop drawings will include all

dimensions, grades, materials, etc., pertinent to installation. Equipment rooms shall be drawn

at large scale and shall show equipment, foundation, piping, and clearances for maintenance,


etc. The shop drawings will be coordinated with the work of related trades and shall be

submitted for approval before installation is begun.

D. Contractor agrees that Shop Drawing Submittal processed by the Engineer are not Change

Orders; that the purpose of Shop Drawing Submittal by the Contractor is to demonstrate to the

Engineer that the Contractor understands the design concept, that he demonstrates his

understanding by indicating which equipment and material he intends to furnish and install and

by detailing the fabrication and installation methods he intends to use. Contractor further

agrees that if deviations, discrepancies or conflicts between Shop Drawings and Specifications

are discovered either prior to or after Shop Drawing Submittal are processed by the Engineer,

the Contract Drawings and Specifications shall control and shall be followed.

10.3 LIST OF MATERIALS, FIXTURES AND EQUIPMENT

A. WITHIN THIRTY (30) DAYS AFTER AWARD OF CONTRACT, SUBMIT A COMPLETE LIST

OF MATERIALS, FIXTURES AND EQUIPMENT TO THE ENGINEER FOR APPROVAL.

There shall be eight (8) copies of data on each item and they shall be complete with names

and addresses of manufacturers, catalog and model numbers, trade names, capacities and all

other information required. DO NOT SUBMIT PARTIAL LISTS FROM TIME TO TIME.

Approval shall be based on manufacturer's published ratings only.

B. Contractor shall not delegate the authority to material supply houses to present data for

approval. This shall be done by the Contractor. Data shall be presented in hard backed three-

ring binders indexed and tabbed for ready reference to any article, material, equipment unit

and the like.

C. Contractor shall submit manufacturers' data and brochures on the following items:

Pipe.

Valves.

Piping Specialties (including expansion tank, air separator, water flow measuring devices,

thermometers, pressure gauge, pressure reducing valves, backflow preventors, pressure relief

valves).

Insulation.

Pumps.

Unit Heater.

Boiler.

Boiler stack.

Exhaust Fans.

D. Complete set of mechanical submittals shall be transmitted to the Engineer in three-ring hard

binders, all sets identical, with tabbed dividers indicating equipment, "Pump", "Piping


Specialties", etc. for each group. Partial submittals will not be acceptable. Operating and

Maintenance Manuals (three total) shall be bound and tabbed similar to the mechanical

submittals.

10.4 SUBSTITUTION OF MATERIALS

A. Where a definite material or unit of equipment is specified without mention of other

manufacturers or followed by the phrase "or approved equal" it is the intent that this item shall

be furnished with no substitutions. When other manufacturers are listed or if the phrase "or

approved equal" is used to set a definite standard of quality and/or design and is not used to

discriminate against any product of another manufacturer.

B. Open competition is expected, but in all cases, complete data must be submitted on all

proposed substitutions and samples shall be submitted for comparison and test when

requested by the Engineer.

C. It shall be the responsibility of the Contractor to ascertain if the substitute items will fit into the

space allotted as conveniently as the items specified. Any changes to the building or system

design necessary shall be arranged for in writing before material is ordered. All costs involved

in making such changes shall be borne by the Contractor. If such changes are deemed

inadvisable by the Engineer, the Contractor shall install items specified even though substitute

item had been previously approved. Engineer's approval of a substitute is for performance

and/or design only.

10.5 INSTALLATION DIRECTIONS

A. Obtain manufacturer's printed installation directions to aid in properly executing work on

equipment requiring such directions as directed by the Engineer. Submit such directions to

Engineer for approval prior to time of installation of equipment.

10.6 STARTING AND INSTRUCTIONS

A. All equipment and systems shall be tested as hereinafter specified.

B. Furnish a competent technician to supervise the starting, adjusting and testing of all equipment

and to train the operator in the operation of the system. Where specified, certain major items

of equipment shall be installed under the supervision of and tested by a specialist furnished by

the manufacturer of the equipment. Such specialist shall train the operator in the use of his

equipment.

C. Contractor shall furnish operating and maintenance instructions for each and every piece of

equipment supplied by him together with four (4) copies of spare parts lists. Information shall

be neatly bound in three (3) three-ring binders, indexed and labeled for each piece of

equipment supplied. Operations and Maintenance Manuals shall consist of manufacturers

original printed materials. No photo copies. Contractor will spend sufficient time with the

operator to acquaint him with the complete operation of the systems. Provide framed, glass

enclosed, typewritten instructions, easily read, explaining exactly the procedure to be followed

in starting up, and in shutting down the systems for each of the various control cycles.

Operators, such as switches, pushbuttons, changeovers, etc., shall be numbered and referred

to by number and function in the operating instructions.


10.7 PROTECTION OF EQUIPMENT AND MATERIALS

A. Responsibility for care and protection of equipment and material under this Contract rests with

this Contractor until equipment or materials have been tested and accepted.

B. All pipe ends, valves and parts of equipment left unconnected permanently or temporarily, shall

be capped, plugged or properly protected to prevent entry of foreign matter.

CODES AND STANDARDS 15020-1

SECTION 15020

CODES AND STANDARDS

20.1 APPLICABLE CODES

All work performed and all material used shall conform to the standard as set up by the current edition

of the following codes:

.1 ASHRAE - ASHRAE Guide latest edition.

.2 AGA - Standards for Installation of Gas Appliances and Piping.

.3 International Gas Code 2012.

.4 National Electrical Code.

.5 International Mechanical Code 2012.

.6 International Plumbing Code 2012.

.7 SMACNA Sheet Metal & Air Conditioning Contractors National Association.

.8 International Fire Codes - NFPA - 90-A, NFPA - 96, NFPA – 101, 2012.

.9 International Building Code 2012.

.10 Other applicable building, safety, or fire codes having jurisdiction over equipment, materials or

methods. The decision of the Engineer will be final in event of dispute over code to use or its

interpretation.

20.2 ELECTRICAL REQUIREMENTS

A. The Electrical Contractor shall furnish and install all manual starters as required. Where

magnetic starters, reversing starters, multiple speed starters, variable frequency drives, etc.,

are required, they shall be furnished by the Mechanical Contractor. All poly-phase motors and

all motors which are automatically controlled shall be furnished with magnetic starters, full

voltage, non-reversing type, complete with necessary auxiliary contracts for controls unless

otherwise noted. Heaters shall be of the melting alloy type, sized to the exact nameplate

running current of the motor. Overloads shall have visual trip indicators and shall be trip-free

with reset button held in. All magnetic motor starters or controllers shall be equipped with one

over-load element in each phase. Manually operated motors with magnetic controllers shall be

provided with oil-tight pushbutton stations and automatically controlled motors shall be

provided with oil-tight, "hand-off" automatic switches. All magnetic starters shall be provided

with red bull's eye pilot light in cover. Energy for controlled circuits shall be taken through

auxiliary contacts, and shall not be taken from the load contacts of the starters. All power

wiring shall be run in rigid conduit in damp locations or electrical metallic tubing in dry locations

as described in Division 16000 and shall conform to NEC Standards.

CODES AND STANDARDS 15020-2

20.3 MOTORS

A. Unless otherwise specified or required for the particular application, motors shall conform to

the following requirements. Refer to specific equipment specifications for special motor

voltage, phasing and starting requirements.

B. Each motor shall have sufficient capacity to start and operate the machine it drives without

exceeding the motor nameplate rating at the speed specified or at any speed and load which

may exist with the drive actually furnished.

C. Each motor that is provided with automatic control or under automatic control shall be capable

of frequent starts as the control may demand, however, not less than four starts per hour for

any motor.

D. All belt connected motors, regardless of size, shall be equipped with shafts and bearings that

will withstand both the normal belt pull of the drive furnished and the momentary or continuous

overloads due to acceleration or incorrect belt tension.

E. Motors shall be continuous duty at 100 percent of rated capacity and temperature rise shall be

based on 50oC ambient. Motors shall conform to NEMA Standard MG-1 and shall have a 1.5

service factor.

F. Each direct connected motor shall be securely mounted in accurate alignment. Each belt

connected motor shall be provided with a securely mounted adjustable base to permit

installation and adjustment and alignment of belts.

G. The insulation resistance between starter and rotor conductors and frames of motors shall be

not less than one-half megohm.

H. No shop test of motors will be required, but the insulation resistance and general operating

characteristics shall be determined at start-up and final inspection by the Contractor as

directed.

MECHANICAL SYSTEMS SCHEDULE 15030-2

SECTION 15030

MECHANICAL SYSTEMS SCHEDULE

30.1 GENERAL

A. The work specified herein shall include all labor, materials, equipment, tools, supplies and

supervision required to install and place in the mechanical systems and appurtenances

specified herein and/or indicated on the drawings or reasonably implied as necessary for

completion of the various systems.

30.2 SCOPE OF WORK

A. Furnish labor and equipment for demolition of existing chillers, cooling tower, pumps, and

related piping as shown on drawings and described herein.

B. Furnish and install new chiller, pumps and related piping as shown on drawings and described

herein.

C. Provide two (2) new boilers, pumps, and related piping as shown on drawings and described

herein (Additive Alternate No. 1).

30.3 WORK BY OTHERS

A. This Contractor shall bring adequate power to and make final connections to all equipment

furnished under this contract. All control wiring shall be by a separate controls contract. This

contract has NO controls. This Contractor shall coordinate with the separate Controls

Contractor. This Contractor shall set schedule and sequence of work in building and

coordinate schedule with separate Controls Contractor. This Contractor shall provide labor

and pipe fittings required by separate Controls Contractor for installation of meters and sensors

required by separate Controls Contractor and shown on drawings.

B. The Contractor shall furnish all major openings in building structure as required for installation

of the mechanical system; and shall assist with installation of all equipment in outside walls and

on roof.

C. All items of labor, materials and equipment not specifically stated herein or on plans to be by

others and are required to make the system complete and operative shall be by this

Contractor.

D. Painting - Contractor shall provide skilled craftsmen to prepare, apply, and paint the following:

1) Prime and paint all ferrous metal sleeves, supports and hangers exposed in finished

areas and elsewhere as indicated. No paint is required for zinc plated metal in non-

finished areas. Paint shall be rust inhibitive alkyd type, color and approval by

Engineer.

BASIC MATERIALS AND METHODS 15100-1

SECTION 15100

BASIC MATERIALS AND METHODS

100.1 EXCAVATION, TRENCHING AND BACKFILLING

A. Excavate trenches for underground pipe lines to required depth and provide a separate trench

for each utility sewer, gas and water line except where otherwise noted on drawings. Lay all

pipe in open trench unless given permission for tunneling. Excavate trenches of sufficient

width for proper installation of the work. When the depth of backfill over sewer pipe exceeds 10

feet, keep the trench below the level of the pipe as narrow as practical.

B. Sheet and brace trenches and remove water as necessary to permit proper installation of the

work. Under no circumstances lay pipe in water. Keep the trench free from water until pipe

joint material has hardened. The presence of ground water in the soil or the necessity of

sheeting or bracing trenches shall not constitute a condition for which any increase may be

made in the contract price. SHEETING AND BRACING OF TRENCHES SHALL BE DONE

WITHIN THE LATEST GUIDELINES OF OSHA.

C. Grade the bottom of trenches evenly and excavate bell holes to insure uniform bearing for the

full length of all pipes. Cut holes as necessary for joints and joint making. Excavate all hard

material to at least 4 inches below the pipe at all points. Refill such space and all other cuts

below grade with sand firmly compacted.

D. After pipe lines have been tested, inspected and approved by the Engineer and prior to

backfilling, remove forms and clean excavations of trash and debris to prepare for backfill.

E. When proper time has elapsed for joint hardening, if necessary, initial backfilling shall be

performed by hand, together with tamping until fill has progressed to an elevation at least one

foot above the top of pipes. During the initial backfilling, approved granular material (where

required) of loose soil free from lumps, clods, frozen material or stones shall be deposited in

layers of approximately 6 inch thickness and compacted by hand or with manually operated

machine tampers actuated by compressed air or other suitable means. Trench filling from the

point 1 foot above the top of pipe in unimproved areas (outside limits of buildings, parking

areas, driveways, alleys, streets and the like) backfill may be deposited by bulldozer, drag line,

or other suitable means in layers with sufficient surplus material neatly rounded over the trench

to compensate for "after settlement". All surplus excavated materials shall be disposed of by

the Contractor at his expense unless otherwise directed by the Engineer. Trench filling from

the point one foot above the pipes under improved areas (buildings, driveways, parking areas,

streets and the like) where danger from settlement exists backfill shall proceed in layers and

compacted to the Proctor Density as specified in the Engineering specifications governing the

project. Compaction tests as specified therein shall be observed and approved by the

Engineer prior to pouring of concrete, paving, etc.

100.2 GENERAL PIPING INSTALLATIONS

A. Arrange, install piping approximately as indicated straight, plumb, and as direct as possible;

form right angles or parallel lines with building walls. Keep pipes close to walls, partitions,

ceilings, offset only where necessary to follow walls as directed. Locate groups of pipes

parallel to each other; space them at distance to permit applying full insulation and to permit


access for servicing valves.

B. Install horizontal piping as high as possible without sags or humps. Grade drainage piping or

uniform slope of 1/4 inch per foot minimum; where this is impossible, maintain slope as

directed but in no case less than 1/8 inch per foot.

C. Locate valves for easy access and operation where concealed; provide access doors of the

proper type for the construction into which they are installed. Do not locate any valves with the

stems below horizontal.

D. Provide water supply, drain, vent and gas connections to equipment specified in other sections

requiring such services. Indicated locations and sizes of equipment connections are

approximate; exact locations and sizes of piping, valves, shall conform to approved shop

drawings and printed installation directions furnished by equipment manufacturers.

E. Drains and P-traps shall be provided at all coils, and pipe to floor drains. Such drains shall

consist of the necessary pipe, valves and fittings required in the opinion of the Engineer to

permit servicing of equipment, systems, etc.

100.3 PIPE SLEEVES

A. Pipe sleeves of cast iron or zinc coated steel pipe shall be provided for all pipes passing

through exterior walls, and slabs on grade, which do not have membrane waterproofing.

Sleeves may be omitted where pipes pass through exterior walls above ground to lawn

faucets, wall hydrants and downspout nozzles.

B. Sleeves passing through floors, utility trench, interior walls or floors rated one (1) hour or more,

and exterior walls which are provided with membrane waterproofing shall be sealed with

approved elastomeric fire proofing sealer. Provide an expandable fire caulk and restraining

collar for PVC pipe penetrating rated walls, floors, and ceilings. This caulking shall be UL

tested, rated and classified according to 1994 Underwriters Laboratories, Inc., Volume II, and

shall be approved by Fidelity Mutual and Southern Building Code Conference.

C. Sleeves passing through floors and exterior walls which are provided with membrane

waterproofing shall be threaded steel pipe fitted with companion flanges and arranged to

secure membrane. Companion flanges shall be drilled and tapped in such a manner that

bolting is affected from the outer (or upper) face only.

D. Pipe sleeves passing through potentially wet floors that do not have membrane waterproofing

such as in toilet rooms, kitchens, serving areas, etc., shall be zinc coated steel pipe and shall

project 2 inches above the finished floors, and shall be chalked watertight.

E. Sleeves shall be provided for all pipes passing through all other floors and walls, and shall be

constructed of zinc coated sheet steel not lighter than No. 26 gage, moisture resistant fiber, or

plastic.

F. Sleeves through exterior walls below grade shall be not less than 2 inches greater in inside

diameter than the outside diameter of the pipe it serves; all other sleeves shall be large enough

to provide approximately 1/4 inch clear annular space between the sleeve and pipe or between

the sleeve and insulation where insulation is required. Except as hereinbefore specified for wet


area floors, sleeves shall be of sufficient length to terminate flush with the finished floor or wall.

G. Spaces between pipes and sleeves passing through exterior walls, slabs on grade and over

crawl spaces, and waterproofed floors shall be chalked watertight. Spaces between pipes and

sleeves passing through floors, walls, and ceilings of machine spaces, such as mechanical

equipment, refrigeration, boiler, pump, fan, and machinery rooms, shall be packed and sealed

at both ends of sleeve to provide an airtight acoustical barrier.

100.4 FLOORS AND CEILING PLATES

A. Furnish and install chrome-plated type floor and ceiling plates or escutcheons on all exposed

pipe passing through floors, walls and ceilings. Inside diameter shall fit around insulation or

around pipe; when not insulated, outside diameter shall cover sleeve. Where sleeve extends

above finished floor, escutcheon shall clear sleeve extension. Secure escutcheons or plates to

pipe or sleeve but not to insulation.

100.5 RECORD DRAWINGS

A. This Contractor will be given two (2) sets of blueline prints by the Engineer. Indicate all

variations in running of pipe, location of drains, cleanouts, equipment, etc., from that shown on

original drawings in red pencil. These blueline prints shall be turned over to Engineer upon

completion of the job.

100.6 SYSTEMS CLEANING AND TREATMENT

A. All heating water piping shall be filled and circulated with a 2% solution of trisodium and clean

water. Circulation shall be for a minimum of two hours. Flush system and repeat two additional

times. The last time operate all control valves before flushing. Test and balance contractor will

be required to verify cleaning.

100.7 FILTER CLEANING

A. Air handling equipment on this project shall not be operated during any stage of construction,

clean-up, or testing without design efficiency filters and the approval of the Engineer and

Physical Plant.

B. Where operation of equipment is permitted by the Engineer for finished painting, plaster curing

or the like, disposable filters of double design efficiency shall be used and replaced with new

filters at time of acceptance. Also cover intake to filters with “roll filter media” to protect filters.

Change “roll filter media” over a week, or more often if required, to protect unit and system.

Where permanent cleanable filters are specified, such filters may not be used, but must be

installed new and clean at the time of acceptance.

100.8 IDENTIFICATION

A. All starters, controllers, panels, units of equipment shall be identified with self adhesive

engraved phenolic markers of an approved type indicating the equipment designation used on

the drawings AHU-1, Pump #1, Unit No. 1, etc. A list of markers shall be submitted for

approval prior to ordering. Valves shall be identified with brass tags and "S" hooks complete

with numbers and lists of function of the valve framed in glass and posted in the Equipment


Room.

B. Pipe lines accessible for maintenance (except piping in finished spaces) shall be identified as

to service with Seton, Set Mark semi-rigid plastic identification markers. Direction of flow arrow

shall be included on each marker. Color coded background shall be in accordance with ANSI

A13.1-1975 "Scheme for the Identification of Piping Systems". Locations shall be as follows:

1. Adjacent to each valve and fitting (except plumbing fixtures).

2. At each branch and riser take-off.

3. At each pipe passage through wall, floor and ceiling construction.

4. At each pipe passage to underground.

5. On horizontal runs - marked every 25 feet.

C. Paint all exposed piping per painting schedule.

100.9 TESTS

A. This Contractor shall conduct such tests as required to determine that systems and equipment

which he installs conforms to specifications. Contractor shall supply all labor, materials,

instruments, operations, etc., required to facilitate testing. Gages, thermometers, and

instruments used in testing shall be accurate, recently calibrated and approved by the Engineer

prior to test. Instruments installed permanently in systems, as specified hereinbefore, may be

used in testing when approved by the Engineer. Tests shall be as follows:

1. Water Piping - Domestic Systems: 100 PSI hydrostatic, with no discernable pressure

loss for a period of eight (8) hours.

2. Heating Water Piping: 100 PSI hydrostatic, with no discernable pressure loss for a

period of eight (8) hours.

3. Gas Piping: All gas piping shall be tested at twice the operating pressure or 100 PSI

which is greater with compressed air or nitrogen for a period of not less than eight (8)

hours.

4. Relief Valves: Fire equipment until safety valve relieve. Record temperature and/or

pressure at time of opening.

5. Safety Controls: Test equipment safety controls such as high temperature limit, high

pressure limit, pilot safety, flame failure, and other such safety controls for proper

operation prior to acceptance. Furnish certificate of such tests prior to request for final

payment.

6. Thermometers, Gauges, Etc.: Contractor shall remove, recalibrate and/or replace any

instrument installed in the system as directed by the Engineer when accuracy is

questionable, mercury columns are separated or other such conditions exist.

100.10 TESTING AND ADJUSTING OF EQUIPMENT

A. Upon completion of the various systems, this Contractor shall set and adjust all valves,

dampers, controllers, thermostats, etc.


B. Each and every phase of the heating system shall be operated for a sufficient period of time to

demonstrate to the satisfaction of the Engineer, the ability of the system to meet the capacity

and performance requirements.

100.11 PROTECTIVE DEVICES

A. All couplings, motor shafts, gears, belt drives, or other rotative or moving parts shall be fully

guarded, in accordance with ANSI B15.1 Safety Code for Mechanical Power Transmission

Apparatus. Guards shall be steel and expanded metal or sheet metal as approved. Guards

shall be rigid, suitably secured and readily removable for maintenance without disassembly of

the guarded unit.

100.12 GUARANTEE

A. This Contractor shall guarantee that this system when turned over to the Owner has been

installed in accordance with the Contract Documents. He shall also guarantee to keep all work

embraced in these Contract Documents in repair and proper working order, without charge, for

a period of one (1) year from date of acceptance of the work, except from damage by

conditions beyond his control.

PIPE AND FITTINGS 15110-1

SECTION 15110

PIPE AND FITTINGS

110.1 INSTALLATION

A. All piping installed on this project shall be new and of full weight and size shown and of proper

specification for service intended. ONLY PIPE AND FITTINGS MANUFACTURED IN THE

UNITED STATES WILL BE ACCEPTABLE. MILL TEST REPORTS AND

MANUFACTURER'S CERTIFICATION SHALL BE SUBMITTED TO ENGINEER ON ALL

SUCH MATERIALS USED. When piping is cut, it shall be reamed with pipe reamer and all

burrs, scale, trash and foreign matter removed. All piping shall be stored off the floor or ground

so as to prevent its collecting dirt, plaster, dust, etc. WHERE NON-FERROUS PIPING

CONNECTS TO FERROUS PIPING, INSTALL DIELECTRIC COUPLINGS.

B. Where piping is threaded dies shall be clean and sharp and joint compound shall be applied to

male end only. All joints shall be made up tight; the caulking of these joints will not be

tolerated. Pipe joint compound must be approved by the Engineer. Copper tubing may be cut

with a tubing cutter or hacksaw with guide. Copper tubing shall be thoroughly reamed, cleaned

with steel wool or emery cloth and non-corrosive flux before soldering. No solder less than

grade specified for service shall be used. Where not specified otherwise, 95/5 shall be used

and rolls shall be clearly stamped by the manufacturer as to grade. No other grade solder

allowed on the job. NO SOLDER FLUX WITH SOLDER BASE WILL BE ALLOWED.

C. Where welding is specified or approved, it shall be by electric arc by mechanics skilled in

operation and holding a test certificate acceptable to the Engineer. All scale and flux shall be

removed from piping after welding. No job made fittings will be acceptable but Weldolets or

Threadolets two (2) pipe sizes smaller than main will be allowed up to 4 inch maximum branch

size. Where openings are cut in lines for any purpose, no pump or other operating machine

shall be connected to the piping prior to its being thoroughly flushed in presence of the

Engineer. On welded line use flanged valves, strainers and specialties, weld neck flanges, and

properly rated slip-on flanges.

D. The Contractor shall submit three copies of his qualified welding procedures to the Engineer

for approval. Fabrication shall not begin prior to approval. Qualifications for welding shall be in

accordance with the latest editions and addenda of ASME Boiler and Pressure Vessel Code,

Section IX, Welding Procedure Qualifications, Article II and American National Standard Code

for Chemical Plant and Petroleum Refinery Piping, ANSI B31.3, Chapter V per the following

excerpts:

Para. 327.5

Para. 327.6

E. Any mechanic found installing piping without its being reamed, cleaned, deburred, etc., or in

any way contrary to above, shall be sufficient reason for all erected piping to be removed,

inspected by Engineer, corrected and re-erected, all at Contractor's expense.

110.2 MATERIALS

A. Pipe for the various services specified shall be as follows:

PIPE AND FITTINGS 15110-2

1. Utility and relief drains, including condensate drain, shall be Type "L" copper with

soldered joints.

2. Heating water piping above slab on grade shall be Schedule 40 black steel with screw

joints and malleable fittings or Type “L” copper with soldered joints for 2 inch diameter

and smaller. Butt weld Schedule 40 black steel pipe and weld fittings for 2-1/2 inch and

larger.

3. All domestic water piping inside of building shall be copper tubing, Type "L" conforming

to ASTM B88 with brazed or solder joint fittings, copper, brass, or bronze, conforming to

ANSI B16.18 or B16.22. Solder shall be lead free alloy or as approved. No solder base

flux shall be permitted. Below slab shall type "K" with no joints.

4. Gas piping above ground shall be seamless or welded Schedule 40 steel conforming to

ASTM A120 or ASTM A53. Fittings shall be malleable iron 150-pound conforming to

ANSI B16.9. Underground gas piping shall be steel welded or seamless ASTM A120 or

ASTM A53 factory coated and wrapped for resistance to erosion and corrosion. After

each joint is welded or joints are made field coating and wrapping with similar materials

shall be made and lines tested for leaks. Underground valves shall be lubricated plug

type installed in valve box marked "Gas".

VALVES 15120-1

SECTION 15120

VALVES

120.1 GENERAL

A. Valves and strainers shall be furnished and installed as shown on the drawings and as

specified herein; where required for service; and shall be as per the following schedule. Valves

by other reputable manufacturers which are equal to valves scheduled will be acceptable.

B. Valve for Steel and PVC Piping system

Pressure

Type 2" & Smaller Class SWP Applicable Service

Gate Nibco T-124 125 lb. Shutoff all services.

Globe Nibco T-211-Y 135 lb. Throttling all services, bypasses, etc.

Check Nibco T-413-Y Flow check, all services.

Plug Rockwell #142 175 lb. Gas, Plug Drain

2-1/2" & larger

Butterfly Stockham 150 lb. Throttling,balancing chilled/hot

LD-711552B water.

Gate Nibco F619 125 lb. Shutoff all services.

or T-619

Globe Nibco F-718-B 125 lb. Throttling all services, bypasses,

or T-718-B etc.

Check Nibco F-918-B or T-918-B Flow check, all services.

Plug Rockwell #143 175 lb. Gas.

C. Valves for Copper Piping Systems

Pressure

Type 3" & Smaller Class WOG Applicable Service

Gate Nibco S-124 200 lb. Shutoff, Domestic Water.

Globe Nibco S-211-Y 200 lb. Throttling, Domestic Water.

Check Nibco S-413-Y 200 lb. Non-Return, Domestic Water.

Strainers Muessco #351 300 lb. Domestic Water, .057

perforations.

VALVES 15120-2

NOTE: 1 inch and smaller NIBCO S-580 soldered ball valves may be substituted for above gate and globe

valves where pressures do not exceed valve rating (400 psi max. up to 350oF. Max.). Provide valves

with stem extensions where piping is to be insulated.

PIPING SPECIALTIES 15130-1

SECTION 15130

PIPING SPECIALTIES

130.1 THERMOMETERS

A. Thermometers shall be of the industrial mercury type with 9 inch adjustable angle cast

aluminum case with baked bronze finish and brass separable extension sockets. The proper

range shall be selected so that the operating temperature of the material measured will fall

approximately in the middle of the scale.

B. Furnish and install pressure gauges in pipe lines where shown on the drawings. Gauges shall

be Tretice or equal, #800 strength clear glass window, dial with black figures and graduations,

black pointer, brass movement, trumpet brass, Burdon tube, brassbottom connected socket

1/3 inch N.P.T. Accuracy shall be 1-1/2 inch. Dial range and graduations shall be appropriate

to the system, with indication in the middle 1/3 of the range. Each pump gauge inlet shall be

mounted with a Series 870 impulse damper and #865 "T" cock.

C. Furnish and install air vents where indicated, and at all other locations in supply and return

mains where rises and drops may occur, and at the tops of all supply and return risers, as full

size 6 inch high capped pipe air chamber (maximum size 4 inches). Connect a 1/8 inch

copper tube and run the tube to an accessible location and install a T handle manual pet cock

for draining in a bucket.

D. Furnish and install circuit set balance valves at each coil of each unit as shown. The balance

valves shall be bronze with brass ball and with glass and carbon-filled TFE seat rings. Valves

shall be equipped with differential pressure read-out ports across valve seat area. Read-out

ports to be fitted with integral EPT check valves, valve body to have 1/4 inch NPT drain/purge

port. Valves to have memory stop feature to allow valves to be closed for service and then

reopened to set point without disturbing balance position, and calibrated name plates to assure

specific valve settings. Valves shall be supplied with molded preformed insulation, suitable for

use on heating or cooling systems, to permit access for balance and read-out. Balance valves

to be leak tight at full rated working pressure of 300 psig at 250oF. Balance valves to be Bell &

Gossett Model "CB" circuit setters or approved equal by Gerand or Flowset. Provide a field

test kit equal to Bell and Gossett Model RO-4 with portable readout meter to Engineer sixty

(60) days after award of contract.

130.2 AIR CONTROL

A. Tangential air separator: ASME Code stamped for 125 psig, flanged connections, TACO or

approved equal.

B. Automatic air vent: High capacity type rated for 150 psig, cast iron casing with stainless steel,

brass, Buna-N and silicone rubber interval components. TACO or approved equal.

C. Compression Tank: Furnish and install as shown on plans, vertical bladder compression tanks

with two 1 inch NPT tappings in the shell. The tanks must be designed, constructed and

stamped for 125 psig @ 375oF. in accordance with Section VIII, Division I of the ASME Boiler

and Pressure Vessel Code, and registered with The National Board of Boiler and Pressure

Vessel Inspectors. The compression tank shall be painted with one coat of air dry enamel.

PIPING SPECIALTIES 15130-2

D. A Manufacturer's Data Report for Pressure Vessels, Form U-1 as required by the provisions of

the ASME Boiler and Pressure Vessel Code shall be furnished for each compression tank

upon request.

E. Each compression tank shall be equal to Taco, John Wood, or B&G.

130.3 HVAC MAKE-UP WATER SYSTEM

A. Water pressure reducing valve and connections: Single-seated, for dead end service for 30 to

125 pounds range on low pressure side. Cast iron or semi-steel body with brass or bronze

trimmings, flanged connections, composition diaphragm, and bronze springs.

1. Operation: Diaphragm and spring to act directly on valve stem. Delivered pressure

shall vary not more than one pound for each ten (10) pounds variation on inlet pressure.

B. Pressure relief valve: Bronze or iron body and bronze or stainless steel trim, with testing lever.

Comply with ASME Code for Pressure Vessels, Section VIII, bear ASME stamp.

C. Reduced pressure backflow preventor: Provide with air gap drain assembly. Equal to Watts or

Febco.

130.4 POT FEEDER

A. By-pass type for chemical treatment schedule 10 gauge heads, 2 inch system connections and

large neck opening for chemical addition. Feeders shall be five gallon for chilled water and

heating water systems. Feeders shall be equal to Ronningen Petter Model CST225-SE or

approved equal.

MECHANICAL DEVICES 15140-1

SECTION 15140

MECHANICAL DEVICES

140.1 PIPE HANGERS

A. General: Pipe hangers and supports shall be Fee & Mason, Grinnell, Elcen or approved equal,

similar and equal to Fee & Mason figure numbers shown.

B. Steel Pipe

1. All horizontal steel pipes to be supported as below:

Up to 2" 3/8" rod 7' spacing

2-1/2" - 3" 1/2" rod 10' spacing

4" 5/8" rod 12' spacing

2. Hangers and supports for steel pipe shall be as below:

Exposed Piping - 1/2" to 4" F & M Fig. 400 Zinc Plated

Exposed Riser

Clamps - 1/2" to 4" F & M Fig. 241 Zinc Plated

Concealed or

Insulated -1/2" to 2" F & M Fig. 199 Black

-2-1/2" to 4" F & M Fig. 239 Black

Riser Clamp -1-1/2" to 4" F & M Fig. 241 Black

C. Copper Pipe

1. All copper pipe to be supported as below:

Up to 3/4" 3/8"rod 5' spacing

1" to 2" 3/8"rod 7' spacing

2-1/2" to 4" 1/2"rod 10' spacing

2. Hangers and supports for copper pipe shall be as below:

Up to 4 inches Fee & Mason Figure 500 Copper Plated.

5 inches and larger Fee & Mason Figure 364 Copper Plated.

Riser clamps for copper pipes shall be Fee & Mason Figure 368 Copper Plated.

D. Cast Iron Pipe

1. All cast iron pipe to be supported at every joint.

2. Exposed piping 1-1/2 inches through 24 inches Fee & Mason Figure 239 galvanized.


3. Exposed riser clamps Fee & Mason Figure 241 galvanized.

4. Concealed piping 1-1/2 inches through 24 inches Fee & Mason Figure 239 black.

5. Concealed riser clamps Fee & Mason Figure 241 black.

E. Beam Attachments: For pipe 2 inches or smaller, beam attachments shall be Fee & Mason

Fig. 255L "C" clamp with lock nut for pipe sizes larger than 2 inches, Fee & Mason Figure 246

beam clamp shall be used.

F. Threaded Rod

1. All threaded rod will correspond with type of hanger used.

2. The load on the hangers shall be the determining factor and the maximum

recommended hanger rod load as catalog listed, shall govern as below:

Rod Diameter 3/8" Maximum Load 610



The above hanger rod loading is based on threaded hot rolled steel conforming to

ASTM-A-107.

3. All threaded rod shall be Fee & Mason Figure 263 galvanized.

140.2 FOUNDATIONS AND EQUIPMENT SUPPORTS

A. This contractor shall provide suitable foundations, supports, stands, suspended platforms for

machinery, tanks, and other equipment as indicated on drawings, specified herein or as

required to make a neat, substantial and workmanlike job. All foundations, supports, stands,

etc., shall be approved by the Engineer prior to construction.

B. Provide 4” thick reinforced concrete pad for pump, boiler, and expansion tanks. Concrete shall

be 3,000 PSO. Pads shall be 6” larger than equipment in each direction with chamfered

edges.

140.3 VIBRATION AND NOISE CONTROL

A. All rotating equipment shall be isolated from correcting piping, ductwork, structure or other rigid

utilities, etc. by means of the appropriate vibration isolation. The CONTRACTOR shall provide

and install the appropriate vibration isolation on any equipment, etc., with moving parts,

whether indicated on Plans or not.

140.4 PIPING FLEXIBLE CONNECTIONS

A. Provide stainless steel mesh type for all applications rated 175 PSI working pressure at 250oF.

1. 2 inches and larger: Provide steel or ductile iron flanges. Furnish manufacturer's tie

rod assembly.


2. 1-1/2 inches and smaller: Threaded union end connections. Utilize flexible connector

for service intended and as recommended by manufacturer.

B. Provide stainless steel mesh weatherproof type for outdoor applications.

MECHANICAL SYSTEMS INSULATION 15160-1

SECTION 15160

MECHANICAL SYSTEMS INSULATION

160.1 GENERAL

A. Insulation shall include all insulating materials, their applications, bands, tiewire, and weather

protection for all pipe, fittings, valves, and equipment as indicated and as specified herein.

B. Pipe insulation shall pass full thickness through hanger with galvanized iron sheet metal saddle

at each hanger as per schedule below:

Through 3" 16 ga. x 12"

C. Insulation shall be applied by an approved Insulating Contractor employing trained insulating

personnel.

D. No insulation shall be applied over pipes, fittings, or other surfaces which are not clean.

Insulation shall be applied after pipes have been thoroughly tested and proven tight by the

Mechanical Contractor.

160.2 INSULATE PIPING MATERIALS AS FOLLOWS

A. Domestic Water piping shall be insulated with 1/2 inch thick John-Manville "Flame Safe GPC"

fiber glass pipe insulation or approved equal. Longitudinal laps and butt strips shall be

smoothly secured with Benjamin-Foster 85-20 adhesive. Fittings and valves on pipe sizes

smaller than 3 inches shall be insulated with J-H #301 insulating and finishing cement to a

thickness equal to the adjacent pipe insulation. Fittings and valves 3 inches and larger shall be

insulated with molded Fiber Glass covers secured with Fiber Glass strapping tape and finished

with Foster 31-99 Mastic. Provide two (2) aluminum bands per section.

B. Heating water supply and return piping shall be insulated with one inch thick urethane foamed

between inner and outer jackets. Insulation shall pass Underwriters' Laboratory Test No. 723.

Insulation on piping outside building shall be insulated with 1-1/4 inch thick foam glass with

water proof jacket. End joints shall be waterproofed as per manufacturer's directions. All water

piping exposed to the weather shall be insulated and have .016 inch corrugated aluminum

jacket, all joints overlapped a minimum of 2 inches, secured with 1/2 inch aluminum strappings

and seals at 12 inches o.c. All fittings, tees and elbows shall be insulated with premold

insulation covers of the same insulation specified for piping. Provide lapping section of fab-

cloth and two generous coats of vapor sealer. Exterior valves and fittings shall be also covered

with premolded aluminum covers.

C. Valve bodies, unions, expansion compensators, flanged joints, strainers, etc. shall be insulated

with job fabricated sections of unicellular insulation. Sections of adjacent pipe insulation shall

be terminated close to fitting, valve, etc. and vapor sealed. Unicellular type insulation, nominal

3/8 inch thick for piping appurtenance 2 inches or less, and 1/2 inch thick for larger sizes shall

then be cut, formed and fitted and shall overlap adjacent insulation a minimum 1 inch.

Overlapped section shall be fitted and sealed with adhesive. For valves, use nesting size

sections of insulation. Secure all insulation with adhesive. Exposed piping, valves, and

appurtenances insulated with unicellular insulation in finished areas and equipment rooms,

where pipes are specified to be painted, shall be coated with white sealer recommended by

flexible unicellular insulation manufacturer prior to final coat.

DOMESTIC WATER SYSTEM 15200-1

SECTION 15200

DOMESTIC WATER SYSTEM

200.1 PIPING SYSTEMS

A. Domestic water piping shall be as per Sections 15100 and 15110.

B. Domestic piping systems shall be insulated as per Section 15160.

SOIL AND WASTE SYSTEMS 15250-1

SECTION 15250

SOIL AND WASTE SYSTEMS

250.1 PIPING

A. All soil, waste and vent piping shall be as per Section 15100 and Section 15110.

CLOSED CIRCUIT FLUID COOLER 15770-1

SECTION 15770

CLOSED CIRCUIT FLUID COOLER

PART 1 - GENERAL

1.0 CLOSED CIRCUIT FLUID COOLER

1.1 GENERAL

Furnish and install an induced draft, counter-flow, factory-assembled closed circuit fluid cooler, manufactured

by REYMSA Cooling Tower, Inc., as scheduled. The closed circuit fluid cooler shall consist of one (1) basin

section with coil, one (1) body section, one (1) re-circulating pump system, and one (1) fan duct. Approved

equal manufacturers are Baltimore Air Coil and Marley with stainless steel construction including but not

limited to water basin, coils, body, etc.

1.2 THERMAL PERFORMANCE

The closed circuit fluid cooler shall have the capacity to cool 450 U.S. GPM of water, from 101°F to 90°F, at a

design entering air wet-bulb temperature of 79°F.

Thermal performance shall be certified by the Cooling Technology Institute (CTI) in accordance with CTI

Certification Standard STD-201. In addition, the manufacturer guarantees that the closed circuit fluid cooler

shall meet the specified performance conditions when installed according to plans and per the guidelines

established in the closed circuit fluid cooler manufacturer’s Installation, Operation & Maintenance (IOM)

Manual.

2.0 CONSTRUCTION

The closed circuit fluid cooler shall be designed and constructed to withstand wind pressure of no less than

30 pounds-forces per square foot (psf) on external surfaces. The top of the closed circuit fluid cooler’s body

shall be designed and constructed to withstand a live load of no less than 40 psf in addition to the

concentrated loads of the fan or other equipment mounted thereon.

Body section shall be one (1) seamless, water-tight and leak-proof piece, constructed of high-performance

corrosion-resistant Fiberglass Reinforced Polyester (FRP) with Ultraviolet (UV) resistant resins. The

fiberglass reinforced polyester material shall have a thickness no less than ¼” inch; the closed circuit fluid

cooler’s structural members, body’s structure, and top cover , shall be specially reinforced to ensure

structural strength. Only a high grade isophalic polyester resin with UV inhibitor shall be used in the

manufacturing process.

2.1 BASIN SECTION

Basin section shall be one (1) seamless, water-tight and leak-proof piece, constructed of high-performance

corrosion-resistant fiberglass reinforced polyester (FRP) with Ultraviolet (UV) resistant resins. The fiberglass

reinforced polyester material shall have a thickness no less than ¼” inch, the basin’s walls and bottom shall

be specially reinforced to ensure structural strength. Only a high grade isophalic polyester resin with UV

inhibitor shall be used in the manufacturing process. No side fasteners will be allowed at the sidewalls of the

basin. There shall not be any metal support or structure in direct contact with water.

Following water connections shall be furnished as standard:

a. Hot water inlet

b. Cold water outlet

c. Drain

d. Overflow

e. Make-up water

f. Purge


2.2 FAN DUCT

The closed circuit fluid cooler should have one (01) fan duct constructed of high-performance corrosion-

resistant FRP with Ultraviolet (UV) resistant resins. The fiberglass reinforced polyester material shall have

a thickness no less than ¼” inch; the fan duct shall be specially reinforced to ensure its structural strength.

The fan Duct shall contain a direct-drive fan, a motor mounted on an FRP structure, and a corrosion-

resistant safety screen mesh (also known as “fan guard”). The fan duct is to be mounted on top of the

body section, held in place with stainless steel fasteners provided by the manufacturer, and no gasket

shall be required.

2.3 STANDARD FAN

The closed circuit fluid cooler shall contain one (01) standard fan. Fan shall be direct-drive, with axial,

propeller type fan blades. Airfoil design fan blades shall be manufactured of spark and corrosion resistant

Fiberglass Reinforced Polyamide (PAG) and shall be suitable for operation on a temperature range of -40º

F (-40º C) to 230° F (110º C). Fan hubs shall be manufactured of a pressure die cast aluminum alloy.

2.4 STANDARD FAN MOTORS

The closed circuit fluid cooler shall contain one (01) fan motor, rated at ______ HP at 850 RPM. The fan

motor shall be single speed, Totally Enclosed Fan Cooled (TEFC), and shall be suitable for 230/460 Volts,

3 phase, 60Hz service. The fan motor shall be rated for continuous operation, 1.15 service factor on sine

wave, NEMA premium efficiency, severe duty – IP54, marine duty, and inverter rated. Fan motor’s

construction shall be 100% cast iron and shall have Class F Insulation System. The fan motor shall meet

NEMA MG1 – 1.26.6, shall be Underwriters Laboratories (UL) Recognized, and CSA Certified.

3.0 FILL MEDIA MODULES

Fill media modules shall be fabricated from rigid, corrugated UV protected Polyvinyl Chloride (PVC)

sheets that are conducive to cooling water. Polyvinyl chloride corrugated sheets shall form a cross-

corrugated pattern with an angle of 60 degrees from the horizontal between adjacent sheets, to provide a

continuous and horizontal redistribution of air and water. Fill media modules shall provide no less than 69

ft2/ft

3 of surface area and a void-to-volume ratio of 95%. The manufacturing material, polyvinyl chloride,

shall be resistant to rot, fungi, bacteria and organic/inorganic acids, and alkalis as commonly found in

closed circuit fluid coolers; and shall meet CTI STD-136. Fill media modules’ flame spread rating shall be

less than 20 according to ASTM E84; and regarding flammability, fill media modules shall be self-

extinguishing in less than 5 seconds according to ASTM D635.

4.0 DRIFT ELIMINATORS

Drift eliminators shall be fabricated from rigid, corrugated UV protected polyvinyl chloride sheets and shall

be furnished in lightweight, easily removable sections with 2 changes in air direction to remove entrained

water particles from the leaving airstream. Drift losses shall not exceed 0.005% of the design circulating

flow. The manufacturing material, PVC, shall be resistant to rot, fungi, bacteria and organic/inorganic

acids, and alkalis as commonly found in closed circuit fluid coolers, and shall meet CTI STD-136. Drift

eliminators’ flame spread rating shall be less than 25 according to ASTM E84, and regarding flammability,

drift eliminators shall be self-extinguishing.

5.0 AIR INLET LOUVERS

Air inlet louvers shall be cellular type and shall be designed to minimize splash-out of falling water, reduce

light transmission into the fluid cooler, and reduce sound transmission out of the closed circuit fluid cooler

at minimal airside pressure loss. Air inlet louvers shall be fabricated from rigid, corrugated UV protected

PVC sheets and shall be easily removable to provide access for cleaning. The manufacturing material,

polyvinyl chloride (PVC), shall be resistant to rot, fungi, bacteria and organic/inorganic acids, and alkalis

as commonly found in closed circuit fluid coolers, and shall meet CTI STD-136. Air Inlet Louvers’ flame


spread rating shall be less than 20 according to ASTM E84, and regarding flammability, air inlet louvers

shall be self-extinguishing in less than 5 seconds according to ASTM D635.

6.0 HOT WATER DISTRIBUTION SYSTEM

Hot water shall enter into the closed circuit fluid cooler through a single inlet. All interior distribution piping

shall be polyvinyl chloride (PVC) schedule 40 pipe minimum. Water shall be evenly distributed over the fill

media by removable 2 ½ inch spray nozzles made of Acrylonitrile Butadiene Styrene copolymer (ABS).

Spray nozzles shall contain internal, interchangeable flow devices to provide an optimal spray pattern

within the 2 to 10 psig operating pressure range.

7.0 WATER DISTRIBUTION PAN

Cooled water is distributed externally over the copper coil heat exchanger using gravity spray nozzles

placed in a fiberglass pan, so water is evenly spread across the copper coil for better heat transfer.

8.0 COOL WATER RECIRCULATION PUMP

Water is recirculated to the water distribution system by a centrifugal, vertical inline recirculation pump

designed for optimum performance, easy installation, and simplified maintenance. The close-coupled

design results in improved alignment and increased seal life.

9.0 COPPER COIL

The copper coil tubes are constructed of 5/8” OD Type “L” copper with excellent thermal conductivity,

corrosion resistance, and durability. It is encased in a stainless steel frame, leak tested at 300 psi, and

uses 3” or 4” Victaulic connection depending on the model.

10.0 ACCESSORIES

10.1 BASIN HEATERS

The closed circuit fluid cooler shall be provided with one (1) basin heater system. The basin heater system

shall consist of one (1) electric immersion basin heater of 10.0 kW each with one (1) control panel and a

combination level sensor/thermostat well, all installed by others. Immersion basin heaters shall have 334

stainless steel sheaths. The combination level sensor/thermostat well shall consist of a stainless steel low

water probe with a brass and copper thermostat well mounted on a 2 inch stainless steel MPT plug. Basin

heaters enclosure shall be furnished with NEMA 4X Glass Reinforced Polyester, stainless steel captive

screws, a hinged silicone gasket cover, and shall meet flammability rating 4L94V-O. Basin heater

system’s contactor shall be a resistive silver-cadmium oxide contactor rated for 40 amperes.

10.2 ELECTRIC WATER LEVEL CONTROL

The closed circuit fluid cooler shall be provided with one (1) electric water level control system, and shall

be installed by others. The electric water level control system shall consist of one (01) 5-probe water level

controller and one (01) stilling chamber. Water level controller’s enclosure shall be furnished with NEMA

4X Glass-Filled Polycarbonate, shall have a full gasket cover, and shall meet flammability rating U194V-1.

Water level controller’s electrodes shall be ¼ inch stainless steel probes and shall sense high water

alarm, low water alarm, high water level, and low water level using a common ground. Stilling chamber

shall consist of a 2 inch Polyvinyl Chloride (PVC) schedule 80 Body, ½ inch Male Pipe Thread (MPT)

Polyvinyl Chloride schedule 80 mounting nipples, and ½ inch MPT drain plug.

10.3 VIBRATION SWITCH

The closed circuit fluid cooler shall be provided with one (1) vibration cut-out switch for shutdown of fan

motor. The vibration switch shall be installed by others. Vibration switch case shall be equal to NEMA 3R.

Vibration switch contacts shall be Single Pole Double Throw (SPDT)-double make leaf contacts for 5

amperes @ 480 VAC.


10.4 LADDER WITH STANDARD SUPPORTS

Aluminum ladder to grade shall be welded construction, with standard supports, ready to be installed to

the closed circuit fluid cooler by others; stainless steel fasteners shall be provided by manufacturer.

Supports’ standard material shall be stainless steel.

REFERENCE STANDARDS AND CODES

ASSOCIATION STANDARD / CODE

Cooling Technology Institute (CTI)

CTI STD-201 Standard for the Certification of Water-Closed Circuit

Fluid Cooler Thermal Performance.

CTI STD-136 Polyvinyl Chloride materials used for film fill, splash fill,

louvers, and drift eliminators.

American Society for Testing and Materials

(ASTM)

ASTM E84 Standard test method for Surface burning

characteristics of building materials

ASTM D635 Standard test method for rate of burning of plastics in a

horizontal position.

National Electrical Manufacturers Association

(NEMA)

MG1 Motors and generators.

MG1 – 1.26.6 Waterproof Specification.

Occupational Safety & Health Administration

(OSHA) 1910.23 Guarding floor and wall openings and holes.

CLOSE CIRCUIT COOLER WATER TREATMENT SYSTEM 15771-1

SECTION 15771

CLOSED CIRCUIT COOLER WATER TREATMENT SYSTEM

PART 1 - GENERAL

A. WORK INCLUDED

Provide a complete water treatment system for the cooling tower system. Provide water

treatment systems as indicated on the drawings and specified herein.

B. MANUFACTURERS

The water treatment chemical and service supplier shall be a recognized specialist whose

major business is in the field of water treatment. The supplier shall have been active in

the field of industrial water treatment for at least ten years and shall have a fully staffed

laboratory, development facility, service department, and full-time service personnel.

C. CHEMICALS

Provide, at no additional cost to the owner, all chemicals required for treating included

systems for eighteen months of operation.

D. WATER ANALYSIS

The appropriate chemicals to be used will be determined by the analysis of a water

sample taken from the building site by the water treatment supplier. Provide ingredients

necessary to achieve the desired water conditions.

E. INSTRUCTIONS

Instruct owner's personnel in the use and operation of each water treatment system,

including: monitoring equipment, feed equipment, preparation of chemical solutions,

charging of the chemical solution reservoirs, proper handling of chemicals, and proper use

of charts and logs.

PART 2 – COOLING TOWER SYSTEMS

Provide equipment of the appropriate size and type scheduled below for each cooling tower. System is to

be an ANCO COOLPAK 1575ES or an approved equal.

A. Automatic Control Panel: Provide a factory fabricated and tested, self-contained

conductivity, inhibitor, and dual biocide controller. It shall employ a continuous sample

method to constantly monitor conductivity; additionally, incorporating programmable timers

to control the inhibitor and biocide pumps. The inhibitor timer shall be programmed to

operate in the pulse mode. An electrical contact in the makeup water meter closes after a

set amount of water passes through the meter and actuates the pulse timer. The pulse

timer turns the inhibitor pump on for a preset time and then off until another contact is made.

The biocide timers are programmed on a 24 hour clock to alternately control the biocide

pumps.


1. Controller:

Programmable Timer Pulse, Limit, % of Time or Bleed

Biocide Timers 24 Hour Clock with 1-28 Day Cycle

Range 0-10,000 micromhos

Accuracy +/-1%

Display Illuminated 128 x 64 pixel LCD

Power 120/240 VAC - 50/60 Hz

Output Relays 3 amps per relay - 4 total relays

Output Signal One 4-20 mA, non-isolated, powered

Security Code Standard

Enclosure Material/Rating High Impact Resistant Polystyrene – NEMA 4X

Electrical Rating UL

Keypad 16 tactile push buttons

Water meter inputs Two contacting head, electronic pulse, paddle

wheel or turbine

2. Conductivity Sensor:

Body Material ABS

Electrodes 2 Electrode High Density Carbon

Temp. Compensation Automatic

3. Flow Assembly:

Body Material Glass Filled Polypropylene

Maximum Pressure 140 PSI @ 100F

Maximum Temp 140F

4. Flow Switch: Min. Flow - 1 gpm

B. Motorized Bleed Valve: Provide properly sized motorized bleed valves. They shall be 115

VAC, 1.7 amp, 150 in.-lbs. torque, 8 second cycle time. Valves shall be in-line

serviceable ball valves with a bottom entry, blow proof, stem design. Valves shall have an

operating pressure range up to 400 psig and a maximum operating temperature 120F.

Electric actuators shall be reversing type encased in a Nema 1 housing, epoxy coated for

added corrosion resistance. Gear train shall be of a permanently lubricated type. Units

shall be furnished with an internal automatically resetting thermal overload switch.

C. Water Meter: Provide a 1-1/2” paddle wheel insertion type electronic flow meter with a

process-ready open collector signal for each cooling tower. It shall be connected with the

energy management system. It shall be mounted in the makeup line to the cooling tower.

The meter shall be furnished with a copper tee installation fitting.

Construction Materials: Polypropylene molded sensor body

Flow rate range: .3 to 20 ft/ second

Pipe Size Range: .5 to 36 in.

Signal Frequency: 15 Hz per ft/sec nominal

Signal Supply Voltage: 3.5 to 24 VDC regulated

Signal Supply Current:


D. Pumps: Provide three electronic diaphragm chemical feed pumps with PVC head, 120

VAC, 60 Hz, electronic stroke and frequency controls, anti-syphon/pressure relief valve

assembly, foot valve assembly, injector/check valve assembly, chemically compatible

suction and discharge tubing, and ceramic suction line weight. Chemical pumps shall be

properly sized for system requirements and capable of injecting chemicals against system

pressure.

E. Flow Assembly: Provide a factory built Sch-80 PVC flow assembly with conductivity

electrode, check valve, injection tees and isolation valves.

F. Board Mounting: The above controller and flow assembly shall be mounted on a 24" x 24"

polypropylene board for wall mounting.

G. Stationary Containers and Rectangular Containment: Provide a 160 gallon poly container

for the corrosion inhibitor and a 75 gallon poly container for each of the two biocides.

Provide a poly rectangular containment basin to provide at least 110% containment for

the poly containers. Provide a pump shelf and bottom feed suction assembly for each

container.

H. Centerline Injection Assembly: Provide a Sch-80 PVC Injection Assembly that will enable

flow assembly water to be discharged into the center of the main condenser water line. This

assembly shall have ¾” NPT connections on the inlet and 1.5” NPT connections on the

outlet.

I. Chemicals: Provide chemicals, based on a water analysis of the system make up water and

materials of construction, to control scale, corrosion, microbiological growth, and to disperse

particulates. The chemicals shall be provided in sufficient quantities for twelve months of

operation.

PART 3 - EXECUTION

A. GENERAL

The equipment and piping shall be kept clean and free of dirt, welding slag, grease, and

like debris during installation.

B. SUPERVISION

Provide the services of an authorized representative of the water treatment company to

provide supervision of the system installation, operational check out and start up service

for the complete water treatment system.

C. EQUIPMENT PLACEMENT AND MOUNTING

The equipment and devices shall be located essentially as shown on the drawings;

however, actual placement shall be verified using field measurements, installation

diagrams and data relating to the equipment actually approved for installation on this

project. The equipment, including accessory devices, shall be mounted in strict

accordance with the water treatment company's instructions.

D. OPERATING INSTRUCTION

The contractor shall include in his price the services of an authorized representative of the


water treatment company to provide onsite operating and service instructions to the

Owner's designated operating personnel.

CLOSE COUPLED PUMP 15801-1

SECTION 15801

CLOSE-COUPLED PUMP

801.1 BASE MOUNTED

A. Pump shall be end suction, close-coupled horizontal, centrifugal type with capacities as

scheduled on drawings.

B. Pump casing shall be cast iron with smooth water passages and fitted with a bronze

replaceable wearing ring. Maximum casing working pressure shall be 125 PSIG.

C. The impeller supplied for the specified conditions shall be one piece bronze casting of a

diameter not greater than 90% of the casing cutwater diameter.

D. Pump shaft shall be carbon steel of a size and design to limit shaft deflection at the stuffing box

to no more than .002 inches.

E. Sealing of the pump liquid cavity shall be accomplished with a face type mechanical seal with

Ni-Resist stationary seat, carbon washer, ethylene propylene flexible members, brass metal

parts and 18-8 stainless steel spring. Seal shall be mounted over a bronze shaft sleeve. The

seal shall be capable of operating at 0oF to 250

oF.

F. Pump shall be close-coupled to a high efficiency, NEMA frame, ODP electric motor rated as

scheduled on drawings. Motor and pump bearing shall be regreaseable and sized for a

minimum of 20,000 hours B-10 life which is equivalent to 100,000 hours average bearing life.

Motor and pump shall be aligned and mounted on a steel base with drip pan. Motor shall be

high efficiency “E” motor rated for V.F.D. operation.

G. Pumps shall be Aurora or approved equal by B&C or Paco.

TESTING AND BALANCING AIR AND WATER SYSTEMS 15990-1

SECTION 15990

TESTING AND BALANCING AIR AND WATER SYSTEMS

Test and Balance Agency will be provided by Engineer. This Contractor shall use these specifications as

guidelines for coordination with Test and Balance Agency.

990.1 SCOPE OF WORK

A. Prior to acceptance and before final inspection, test and balance the air and water systems as

listed herein and as specified hereinafter and submit reports as specified hereinafter. Owner

will provide testing and balancing through the Engineer.

B. Mechanical Contractor shall provide and install any test ports or test wells required by Test

and Balance Contractor. Mechanical Contractor shall coordinate between Controls

Contractor and Test and Balance Agency.

990.2 GENERAL

A. Applicable publications: The publications listed below form a part of this specification to the

extent referenced. The publications are referred to in the text by the basic designation only.

1. American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE):

1977 ASHRAE Handbook of Fundamentals

2. Associated Air Balance Council (AABC):

71679 National Standards for Field Measurements and Instrumentation, Total

System Balance, Air Distribution - Hydronic Systems - Air Pollution -

Sound Vibration, 1979 Edition; 2nd Edition

B. General Requirements

1. Definitions:

Adjust: To regulate the specified fluid flow rate and air patterns at the terminal

equipment, (e.g., reduce fan speed, throttling, etc.).

Balance: To proportion flows within the distribution system (submains, branches and

terminals) in accordance with specified design quantities.

Procedure: Standardize approach and execution of sequence of work operations to

yield reproducible results.

Report Forms: Test data sheets arranged for collection of test data in logical order for

submission and review. This data should also form the permanent record which shall

be used as the basis for any future testing, adjusting, and balancing required.

Test: To determine quantitive performance of equipment.


2. Submittals: Submit the following:

Standards Compliance:

Testing Agency

Testing Agency Personnel

Professional Engineers

Instrument Calibration

Schedules:

Testing Agenda

C. Testing and Balancing Agency

1. Air and Water Systems Testing and Balancing: Upon completion of the installation and

field testing, performance test and adjust the supply, return, make-up, and exhaust air

systems, and chilled water systems to provide the air volume and water flow quantities

indicated. Accomplish all work in accordance with the agenda and procedures

specified and AABC 71679. Correct air and water system performance deficiencies

disclosed by the test before balancing the systems. This contractor shall verify the

cleaning of the chilled, heating and condenser water piping systems. This contractor

shall verify and provide test results of freeze protection.

2. The Contractor, as part of this contract, shall coordinate the services of a qualified

testing organization to perform the testing and balancing work as herein specified. Prior

to commencing work under this section of the specifications, the testing organization

shall have submitted proof to satisfy the Engineer that the organization is a member in

good standing and meets the technical standards for membership of the AABC as

published in the AABC 71679. The testing organization shall be independent of the

installing Contractors or equipment suppliers for this project.

3. Test and Balance Contractor shall be considered an extension of the Engineer, and will

report directly to the Engineer any and all deficiencies that will impair the balance of the

systems involved. This shall include, but not be limited to, reporting balancing valves,

or dampers not installed as called for on the plans or in the specifications. The TAB

Contractor shall correspond with the Engineer as required to indicate irregularities in the

performance of equipment, piping, ductwork, valves, dampers, etc., that will impair the

proper performance of the system(s). After control sequence of all mechanical

equipment has been reviewed and checked, report the Engineer any deficiencies

discovered.

D. Agenda

1. Preliminary Report: Review plans and specifications prior to installation of any of the

affected system. Submit a written report to the Engineer indicating any deficiencies in

the system that would preclude the proper adjusting, balancing, and testing of the

systems.

2. Submittal: An agenda shall be submitted and approved by the Engineer prior to start of

testing and balancing work. Include the following:

General description of each air and water system with its associated equipment, and

operation cycles for heating, intermediate, and cooling. Where different cycles are used


for day and night, they shall be described independently.

A complete listing of all air and water flow and air terminal measurements to be

performed.

Specific test procedures and parameters for determining specified quantities; e.g., flow

drafts, etc., from the actual field measurements to establish compliance with contract

requirements.

Samples of forms showing applications of procedures and calculations to typical

systems.

3. Procedure Reporting: Provide specific test procedures for measuring air quantities at

terminals. Specify type of instrument to be used, method of instrument application (by

sketch), and factors for:

Air terminal configuration.

Flow direction (supply or exhaust).

Velocity corrections.

Effective area applicable to each size and type of air terminal.

Density corrections (unless applicable data are covered elsewhere).

4. Area and Application Factors: Will not be required where pilot tubes are employed to

determine terminal capacity.

E. Procedures, General

1. Requirements: Adjust systems and components thereof that perform as required by

drawings and specifications.

2. Test Duration: Operating tests of heating and cooling coils, fans and other equipment

shall be of not less than four hours duration, after stabilized operating conditions have

been established. Capacities shall be based on temperatures and air and water

quantities measured during such tests.

3. Instrumentation: Method of application of instrumentation shall be in accordance with

the approved agenda. Furnish all personnel, instruments, and equipment for tests

specified herein.

Accuracy of Instruments: Instruments used for measurements shall be accurate.

Provide calibration histories for each instrument for examination. Calibrate each test

instrument by an approved laboratory or by the manufacturer. The Engineer has the

right to request instrument recalibration, or the use of other instruments and test

methodology, where accuracy of readings is questionable.

Application of Instruments: Comply with manufacturer's certified instructions.

Permanently-Installed Instruments: Do not install permanently-installed equipment

used for the tests, e.g., gages, thermometers, etc., until just prior to the tests to avoid


damage and changes in calibration.

Accuracy of all Thermometers: Plus or minus one graduation at the temperature to be

measured. Graduations shall conform with the following schedule:

Design Temperature Maximum

Medium Differential (F) Graduation (F)

Air 10 or less 1/2

Air over 10 1

Water 10 or less 1/10

Water 10-20 1/2

Water over 20 1

990.3 EXECUTION

A. Water System Procedures

1. Adjustment: Adjust heating and cooling water systems to provide required quantity to or

through each component.

2. Metering: Measure water quantities and pressures with calibration meters. Water

Measurements and Balancing: Use venturi tubes, orifices, or other metering fittings

and pressure gages. Adjust systems to provide the approved pressure drops through

the heat transfer equipment, prior to the capacity testing. Where flow metering fittings

are not installed, determine flow balancing by measuring temperature differential across

the heat transfer equipment. Perform measurement of temperature differential with the

air system, adjusted as described herein, in operation.

3. Automatic Controls: Position automatic control valves for full flow through the heat

transfer equipment of the system during tests.

4. Flow: Flow through by-pass circuits at three-way valves shall be adjusted to balance

that through the supply circuit.

5. Distribution: Adjust distribution by means of balancing devices (cocks, valves, and

fittings) and automatic flow control valves. Do not use service valves for adjustment.

Where automatic flow control valves are utilized in lieu of venturi tubes, record only

pressure drop across the valve if said pressure drop is within the pressure drop rating

on the valve tag.

B. Certified Reports

1. Submittal: Submit three copies of the reports described herein, covering air and water

system performance, to the Engineer prior to final tests and inspection.

2. Instrument Records: Include types, serial numbers, and dates calibration of all

instruments.

3. Reports: Reports shall identify conspicuously items not conforming to contract

requirements, or obvious maloperation and design deficiencies.


4. Certification: The reports shall be certified by an independent testing and balancing

Contractor who is versed in the field of air and water balancing and who is not affiliated

with any firm involved in the design or construction phases of the project. Certification

shall include checking or adherence to agenda of calculations, procedures, and

evaluation of final summaries.

C. Final Tests, Inspections, and Acceptance

1. Capacity and Performance Tests: Make test to demonstrate that capacities and

general performance of air and water systems comply with contract requirements.

2. Final Inspection: At the time of final inspection, the Contractor shall recheck, in the

presence of the Engineer random selections of data water and air quantities, air motion

and sound levels recorded in the certified report.

3. Points and Areas for Recheck: As selected by the Engineer.

4. Measure and Test Procedures: As approved for working forming basis of certified

report.

5. Selections of Recheck: (specific plus random): In general, selections for recheck will

not exceed 25 percent of the total number tabulated in the report, except that special air

system may require a complete recheck for safety reasons.

6. Marking of Settings: Following final acceptance of certified reports by the Engineer the

setting of all valves, splitters, dampers, and other adjustment devices shall be

permanently marked by the Contractor, so that adjustment can be restored if disturbed

at any time. Do not mark devices until after final acceptance.