installation operation maintenance odyssey - trane 0213.pdf · a registered letter of protest to...

InstallationOperationMaintenance

ODYSSEYLight CommercialSplit System 5-20 TonsTWE Model 50 Hz / 60 Hz

Air Handling Models

TWE 120 CD / TWE 120 C3TWE 160 CD / TWE 160 C3TWE 180 CD / TWE 180 C3TWE 210 CD / TWE 210 C3TWE 240 CD / TWE 240 C3

February 2013 TWE-IOM01-EN0213

R22 SeriesTWE 120 ED / TWE 120 E3TWE 160 ED / TWE 160 E3TWE 180 ED / TWE 180 E3TWE 210 ED / TWE 210 E3TWE 240 ED / TWE 240 E3

R407C Series

TWE-IOM01-EN02132

Model Nomenclature

Air Handling UnitModel Nomenclature

T W E 1 2 0 C D 0 0 A A

TWE = Cooling Only and Heat PumpAir Handling Unit (Convertible)

Nominal Gross Cooling Capacity (MBH)120 = 120 MBH160 = 160 MBH180 = 180 MBH For TWE model210 = 210 MBH 240 = 240 MBH

Major Design SequenceC = R22 Refrigerant

Service DigitA = First Parts List

Minor Design SequenceA = First Design SequenceB = Second Design SequenceC = Third Design Sequence

Factory Installed Options # 20 = No OptionsA = Discharge Plenum(Vertical application)B = Return Air Grille C = Discharge Plenum and Return Air GrilleS = Special request to be defined and approved

Factory Installed Options # 10 = No OptionsA = 1 HP Fan MotorB = 2 HP Fan MotorC = 3 HP Fan MotorD = 5 HP Fan Motor

Electrical CharacteristicsD = 380-415/3/503 = 230/3/60

E = 7.5 HP Fan Motor

E = R407C Refrigerant

3TWE-IOM01-EN0213

Contents

Model Nomenclature 2

General Information 4

Unit Installation 5

General Data 10

Electrical Wiring 11

Dimensional Data 12

Operation and Start-up 17

Maintenance 18

Trouble Shooting 19

TWE-IOM01-EN02134

General Information

ForewordThese instructions do not attempt tocover all variations in systems, nor toprovide for every possible contingencyto be met in connection withinstallation. Should further informationbe desired or should particularproblems arise which are notsufficiently covered for the purchaser’spurpose, the matter should be referredto the manufacturer.

ReceptionOn arrival, inspect the unit beforesigning the delivery note. Specify anydamage on the delivery note, and senda registered letter of protest to the lastcarrier of the goods within 72 hoursof delivery. Notify the local Trane SalesOffice at the same time. The unitshould be totally inspected within 15days of delivery. If any concealeddamage is discovered, stop unpackingthe shipment. Take photos of thedamage material if possible. Notify thecarrier immediately by phone andregistered mail. Notify the local TraneSales Office. Concealed damage mustbe reported within 15 days of delivery.Check the unit nameplate to confirmthat the proper unit was shipped.Available power supply must becompatible with electricalcharacteristics specified oncomponent nameplates.

General InformationThis manual covers the InstallationOperation, and Maintenance of theTWE120C single circuit air handlers,and the TWE160C, TWE180C,TWE210C and TWE240C dual circuitair handlers. These new air handlermodels are completely redesigned toincorporate a single slab coilassembly, improved applicationflexibility, servicing and maintenanceaccessibility, and an improvedaccessory line. They are of the fullyconvertible type (vertical to horizontal)without field removal or re-orientationof the coil assembly. (For TWE model)They are shipped in the verticalposition.

All unit (both single and dual circuits),have one drain pan that can beinstalled in any one of four positions.This allows for vertical or horizontalapplications and left or right exit.

Note: “Warnings” and “Cautions”appear at appropriate places inthis manual. Your personalsafety and the proper operationof this machine require that youfollow them carefully. Themanufacturer assumes noliability for installations orservicing performed byunqualified personnel.

HandlingThe unit will be supplied with ashipping base and protectivepackaging over the unit casing. Thepackaging should be kept on the unitduring handling or storage on site.

If it is necessary to remove thepackaging for inspection prior tocompletion of on site handling, retainpackaging parts and reapply them bytapping in position to prevent damageto the casing. The unit as supplied hasa shipping base which is suitable forhandling by a fork lift truck. If it isnecessary to sling the unit, usespreader bars under the shippingbase. Ensure that ropes do not causeabrasion to the surface of the unit.

WARNING: Open andlock unit disconnect to preventinjury or death from electricshock or contact with movingparts before attempting anyinstallation or maintenance.

InspectionInspect material carefully for anyshipping damage. If damaged, it mustbe reported to, and claims madeagainst the transportation company.Replace damaged parts withauthorized parts only. Check the unitnameplate to confirm that the properunit was shipped. Available withelectrical characteristics specified oncomponent nameplates.

TWE120 Vertical 180 154 35 39 40 37

5TWE-IOM01-EN0213

Unit Installation

Table 1 - Total unit weight and corner weights (kg)

Installations, Limitations andRecommendationsThe general location of the air handleris normally selected by the architect,contractor and/or buyer. For properinstallation, the following items mustbe considered.

a. Available power supply must agreewith electrical data on componentnameplate.

b. Air handler shipped wired for 380volt applications.

c. If external accessories are installedon the unit, additional clearancemust be provided.

d. All duct work should be properlyinsulated to prevent condensationand heat loss.

e. Refrigerant gas piping must beinsulated.

Caution: Properly insulate allrefrigerant gas piping to preventpossible water damage due tocondensation and to preventcapacity loss and possiblecompressor damage.

It is recommended that the outlinedrawings (Pages 12-14) be studiedand dimensions properly noted andchecked against selected installationsite. By noting in advance whichknockouts are to be used, properclearance allowances can be made forinstallation and possible future service.

Important: If adding externalaccessories to the unit,additional clearances must beconsidered for the overall spaceneeded.

When installing these units “freestanding” with discharge grills andisolaters, a top support with isolatershould be added to prevent tipping.Support and isolater can be attachedto a wall or other appropriate structure.

For installation of accessoriesavailable for this air handler, followthe instructions packed with eachaccessory.

Lifting RecommendationsBefore preparing the unit for lifting, thecenter of gravity should be determinedfor lifting safety. Because ofplacement of internal components, theunit weight may be unevenlydistributed. Approximate total unitweight and corner weights are given inTable 1.

WARNING: On sitelifting equipment must becapable of lifting the weight ofthe unit with an adequate safetyfactor. The use of under-capacitylifting devices may result inpersonal injury or death andcause damage to the unit.

The crated unit can be moved using aforklift of suitable capacity. For liftingthe unit into an elevated mountingposition, run lifting straps or slingsunder the unit and attach securely tothe lifting device. Use spreader barsto protect the unit casing from dam-age. Test lift the unit to determineproper balance and stability.

Caution : Use spreader bars toprevent straps from damagingthe unit. Install the bars betweenlifting straps, both underneaththe unit and above the unit. Thiswill prevent the straps fromcrushing the unit cabinet ordamaging the unit finish.

Installation ConsiderationFor proper installation and operation,check each of the following beforemounting the units.

a. Space Requirement andClearance

Allow adequate space for the unit andfree air or service clearance. SeeFigure 1a.

900 mm.

850 mm.

850 mm.

Figure 1aSpace requirement for TWE modelVertical Type

For servicing and routine maintenance,provide access to the unit throughremovable panels in the ceiling seeFigure 1b.

850 mm. 850 mm.

850 mm.

Figure 1bSpace requirement for TWE modelHorizontal Type

Shipping NetModel Configuration

Maximum Maximum #1 #2 #3 #4

Horizontal 180 154 84 39 39 84TWE160 Vertical 297 275 69 69 72 70




Horizontal 385 361 92 83 101 90

Corner Weights

TWE-IOM01-EN02136

Unit Installation

W#2

W#1

W#4

W#3

Horizontal SuspensionIf the air handler will be suspended, usea suspension mounting kit to isolate theunit from the structure. This is usuallyaccomplished through the use of springor rubber isolators, which are offered asan accessory. Mounting rods must befield supplied. Isolator selection isdependent upon total unit weight,including accessories. Approximate unitweights are provided in Table 1.

W#2

W#1

W#3

W#4

Figure 2b

Figure 2a

Caution: Before hanging the uniton suspension rods, reinforcethe cabinet around theknockouts, using a large washerinside the cabinet. Washershould be between the skin ofthe air handler and the nut onthe suspension rod.

Align holes (knockouts) in the cabinetwith structural supports and securesuspensions rods to the structure, thento the air handler cabinet. If knockoutlocations do not permit proper alignmentwith existing structure, it may benecessary to field fabricate crossmembers on existing structural beams.

Note: When other than bottomreturn is to be used, side panelremoved for return ductinstallation, must be securedover the bottom opening.

LevelingThis air handler has a double slopeddrain pan. In order to assure properdrainage along the length of drain pan, itis important to have the unit properlyleveled. Be sure the air handler is levelor slightly sloped in the direction of thecondensate connection.

Auxiliary Drain PanA field fabricated auxiliary drain panshould be installed under the unit for allhorizontal applications, and when airhandlers are installed above ceilings orin other locations where condensateoverflow may cause damage. This drainpan will eliminate any excesscondensation that may be due toextreme humidity or an obstructed drainin the primary drain pan. Drain linesfrom this pan must be installed, butshould not be connected to the primarydrain line from the unit, isolate theauxiliary drain pan from both the airhandler and the structure.

Installation PreparationsThe final position must be dictated byrequired service access to unit, weightdistribution over structural supports, andby the locations of electrical, refrigerantand condensate drainage connections.

Refrigerant Piping PreparationThe air handler is designed so thatrefrigerant piping can enter from eitherthe left or right hand side. The airhandler is shipped with the intent, thatthe refrigerant, lines will enter from theright hand side. To convert to left handentry, unbraze the elbow on the suctionline and rotate 180 degrees and rebraze.(See Figures 3 and 4).

Caution: Protect adjacentsurfaces from heat damage,when brazing in and around theair handler.These air handlers are shippedwith a holding charge in the coil.Cut the process tube or puncturethe cap to bleed off the nitrogenprior to any brazing. Temporarilycap off tubes if the refrigerantline connections are to be madelater. You will find a cloth bagthat contains two (2) brassclamps (straps) and cork"impregnated insulation materialapproximately 9" long by 4"wide, for attaching and insulat-ing the expansion valve bulb tothe suction line. On dual circuitsair handlers there will be two (2)cloth bags with like parts.

Refrigerant PipingInstallation, brazing, leak testing, andevacuation of refrigerant lines arecovered in the installation instructionspackaged with the outdoor unit. Readthe instructions before beginninginstallation of refrigerant lines.On air handlers that will have refrigerantlines entering the cabinet from the rightside, remove the split rubber grommetfrom the knockout in the end of the airhandler. Uncoil the cap tube with thebulb attached at the expansion valveand place the grommet on the cap tube.With the grommet around the tube, pushthe bulb through the hold and positionthe grommet back into it’s originalposition. One bulb and cap tube onsingle circuit units and 2 bulb (s)approximately 45 degrees off vertical, 10to 12 inches outside of the air handler.(See Figure 3 and 4.)

b. Location, Mounting andPositioning

Before installing any unit make sureproper preparation has been made ateach unit locating for piping andelectrical connections.

7TWE-IOM01-EN0213

Unit Installation

On air handlers that will haverefrigerant lines entering the cabinetfrom the left side, the bulb(s) should beattached to the suction tube(s) insidethe cabinet, in the same manner asabove, approximately 10" from the leftend of the unit.

After attaching to the suction line(s),either inside or outside of the cabinet,wrap the cork impregnated insulationaround the bulb(s) and suction tube(s).Refrigerant piping should then beinsulated.

Important : Ensure that therefrigerant lines passing throughthe cabinet are not resting onsharp sheet metal edges.

Important: When air handler isinstalled in the vertical positionand close proximity trapping ofcondensate is required, use of asubbase accessory to raise theair handler for clearance of thedrain trap is recommended. Fora typical drain trap assembly, seefigure 6a and 6b.

Repositioning Drain PanThese air handlers come with onedrain pan that can be installed in anyone of four positions; this allows forvertical or horizontal application andleft or right condensate lineconnection. The drain pan can also beeasily removed for periodic cleaning.

Important: All air handlers areshipped with the drain paninstalled in the horizontalposition and the connection onthe right side (as shown in figure5). If an alternate position isrequired, the drain pan should berepositioned before setting theair handler.

Step1. Remove the access plate at theopposite end of the drain connection.This plate secures and lifts the backend of the drain pan for sloping. Itmust be removed before the drain pancan be removed. This is done asfollows: (A) remove the screw, (B) liftthe access plate up, (C) pull the plateout. If the drain pan is to be moved tothe vertical position also remove theother two access plates.

Figure 3

LEFT SIDE HOOK UP(OPTIONAL)

NIPPLE

NIPPLE3/4"DIA2"

DIA

RIGHT SIDE HOOKUP (STANDARD)

NIPPLE

NIPPLE3/4"DIA2"

DIA

Figure 4

Condensate PipingThe drain pan condensate connectionis a female slip joint type for 1" ABSpipe. Use PVC cement and tubing asrequired (field supplied) to construct atrap. A union or flexible tubing andclamp may be installed if the drain panis to be removed periodically forcleaning. If the air handlers have metaldrain pans, the nipples will have plugsfactory installed. When it has beendecided which nipple is to be used,remove the plug from that nipple only.

Materials1 Tea

1 Plug

3 Street Ell

1 5-1/2" Nipple

3/4" GALVANIZEDPIPE & FITTINGS

2-3/4"MIN.

4" MIN.

Figure 6a

Figure 6b

3/4" PVC OR COPPERTUBING & FITTINGS Materials

1 Tea

3 90" Ell

1 Plug

1 6" Nipple

2 2" Nipple

1 3/4" NPT to PVCor copper adapter

2-3/4"MIN.

4" MIN.

DRAIN PAN

DRAINPAN

HORIZONTALDRAINCONNECTIONS

VERTICALDRAIN CONNECTIONS

Figure 5

LEFT SIDE HOOK UP(OPTIONAL)

RIGHT SIDE HOOKUP (STANDARD)

TWE-IOM01-EN02138

Step 2. (A) Remove the screw securingthe drain pan. (B) Lift the pan up. (C)Slide the pan out.

Step 3. Install the drain pan into thenew position. (A) Slide the drain paninto the opening. (B) Lift the drain panup. (C) Push it in all the way. (D) Drop itdown over the lip of the opening.Secure with screw.

Step 4. Install the access plate on theopposite end of the drain pain. (A)Slide the edge of the access plateunder the drain pan. (B) Lift the accessplate and drain pan up. (C) Push theaccess plate in. (D) Drop the accessplate down over the lip of the opening.Secure with screw. If the drain pan isbeing move to the vertical position,install the other access plates over thehorizontal position opening.

REMOVE 4 SCREWS ANDANGLE TO USE 2" FILTER

DRAIN PAN LOCATIONHORIZONTAL APPLICATION

ACCESS PLATEALTERNATIVE DRAIN PAN LOCATIONFOR VERTICAL APPLICATION

STEP 1

STEP 3

STEP 2

STEP 4

FiltersAir handlers are shipped with 1"washable filters installed. To replacefilters, remove lower access panel(either end) and slide old filters out andreplace with new ones See Figure 7.

ABC

A

B

C

ABC

D

A

B

C

D

Figure 7

9TWE-IOM01-EN0213

Unit Installation

Thermostat & ControlConnection1. Observe all notes on these

diagrams.2. Mount the thermostat in the desired

location.3. Install color coded cables between

outdoor unit, indoor unit andthermostat.

4. Connect control wiring to theterminal board located on the sideof the fan control box.

Table 2 - RecommendedThermostat Wire Size

Wire SizeMaximum Wire Length

(Physical Distancebetween Unit and T-stat)

Figure 8

FLANGK

KNOCKOUT

UNIT POWER ENTRY

To convert from a 1" filter to a 2" filteron units so equipped, remove loweraccess panels from both ends of theair handler. Remove two (2) screwsand the L shaped angles from both thetop and bottom of the filter track toincrease the width of the filter opening(see figure 7). The screws and Lshaped angles can be discarded orsaved for possible future use.

Duct ConnectionsThe supply and return ducts should beconnected to the unit with flameretardant duct connectors to reducevibration transmission. The return ductshould be sized to the samedimensions as the return inlet of theunit.

WARNING: Wheninstalling or servicing thisequipment, always exercisebasic safety precautions to avoidthe possibility of electric shockthat could result in severepersonal injury or death.

Electrical Connections1. All electrical lines, sizing, protection,

and grounding must be inaccordance with local codes.

2. If conduit is used, isolate whenevervibration transmission may cause anoise problem within the buildingstructure.

3. Ensure all connections are tight andno wires exposed.

4. All accessories must be installedand wired according to theinstructions packaged with thataccessory.

For air handler power entry only, or fordual power entry (power entry for airhandler) the electrical connections aremade in the fan control box located inthe right side of the air handler. Wiringentrance is through holes provided inthe end of the air handler cabinet (seeFigure 8). Breaker or fuse size can beselected using the nameplatesattached to unit.Single point power entry is used, (onepower entry for air handler).

22 - gauge 30 feet20 - gauge 50 feet18 - gauge 75 feet16 - gauge 125 feet14 - gauge 200 feet

Installation ChecklistComplete this checklist once the unitis installed to verify that allrecommended procedures have beenaccomplished before the system isstarted.Operational checks cannot beperformed until the systeminterconnection is complete.

• Verify that the unit electrical poweris disconnected.

• Inspect all field wiring connections.All connections should be clean andtight.

• Inspect unit ground connection(s).Ground must comply with allapplicable codes.

• Inspect unit suspensionarrangement (if used). Unit positionmust be secure. Remove any toolsor debris found in or near the unit.

• Inspect duct outlets. Outlets mustbe open and unrestricted.

• Inspect unit drain lines. Pipeconnections must be tight and drainline unrestricted.

• Inspect fan assembly to insure allmoving parts move freely.

• If unit is horizontally mounted, makesure secondary drain pan has beeninstalled.

• Inspect unit for proper filters,securely installed. All cabinetpanels must be secured.

• Inspect owner/operator on propersystem operating andmaintenanced procedure.

Checkout ProcedureComplete the “Installation Checklist”at the end of this manual onceinstalled all field wiring connections.All operational checks (unit running)must be made after outdoor unit isinstalled and system interconnection iscomplete.

TWE-IOM01-EN021310

General Data

UNIT MODELSPOWER CONNECTION V/ph/Hz 380-415/3/50 380-415/3/50 380-415/3/50 380-415/3/50 380-415/3/50MCA1 A 4.6 6.4 6.4 10.0 10.0SYSTEM DATA

Refrigerant TypeNo. Refrigerant CircuitsRefrigerant Connection Type BRAZE BRAZE BRAZE BRAZE BRAZESuction Line OD in (mm) 1 3/8 (34.93) 1 1/8 (28.58) 1 3/8 (34.93) 1 3/8 (34.93) 1 3/8 (34.93)Liquid line OD in (mm) 1/2 (12.7) 1/2 (12.7) 1/2 (12.7) 1/2 (12.7) 1/2 (12.7)

CASINGMaterial Galvanized & Electro-galvanized SteelColor Light GrayType of Insulation 10mm Fire Retardant Polyethylene Foam

COILFace Area sq ft (m2) 9.6(0.89) 12.7 (1.18) 14 (1.47) 16.3 (1.51) 18(1.67)Tube Size OD in (mm) 3/8 (9.53) 3/8 (9.53) 3/8 (9.53) 3/8 (9.53) 3/8 (9.53)Tube Type INNER GROOVED TUBERowsFins per inch 14 14 12 15 15Refrigerant Flow Control EXPANSION VALVEDrain Connection Size in (mm) 1 (25.4) 1 (25.4) 1 (25.4) 1 (25.4) 1 (25.4)Drain Connection Type PLASTIC - FEMALE PIPE

FANFan Type DOUBLE INLET CENTRIFUGAL WITH FORWARD CURVED WHEELNo. usedDiameter in (mm) 15 (381.0) 18 (457.2) 18 (457.2) 15 (381.0) 15 (381.0)Width in (mm) 15 (381.0) 18 (457.2) 18 (457.2) 15 (381.0) 15 (381.0)Drive Type BELT-ADJUSTABLE DRIVENominal Airflow2 cfm 4000 5300 6000 7000 8000

MOTORMotor Type TOTALLY ENCLOSED-FAN COOLED, THREE PHASE INDUCTION MOTORNo. of Motor Motor hp hp (kW) 2 (1.5) 2 (1.5) 3 (2.2) 3 (2.2) 5 (3.7)No. of SpeedMotor Speed rpm 1405 1405 1425 1425 1440V/ph/Hz 380-415/3/50 380-415/3/50 380-415/3/50 380-415/3/50 380-415/3/50RLA/LRA 3.66 - 21.0 3.66 - 21.0 5.08 - 34.0 5.08 - 34.0 8.03 - 63

FILTERType WASHABLE ALUMINUM AIR FILTERNo. usedSize (WxLxD) mm 355 x 635 x 25 927x400x25 927x400x25 555 x 727 x 25 555 x 727 x 25

DIMENSION (HxWxD)Crated (Shipping) mm 1651 x 1499 x 724 1867 x 1702 x 939 1867 x 1702 x 939 1867 x 2299 x 794 1867 x 2299 x 794Uncrated (Net) mm 1523 x 1410 x 635 1751 x 1613 x 850 1751 x 1613 x 850 1751 x 2210 x 702 1751 x 2210 x 702

WEIGHT Uncrated (Net) kg 154 275 285 355 361

1 MCA - Minimum Circuit Ampacity2 CFM is rated with standard air-dry coil.

POWER CONNECTION V/ph/Hz 230/3/60 230/3/60 230/3/60 230/3/60 230/3/60MCA1 A 7.3 7.3 10.0 10.0 16.6SYSTEM DATA

Refrigerant Type R22 R22 R22 R22 R22No. Refrigerant CircuitsRefrigerant Connection Type BRAZE BRAZE BRAZE BRAZE BRAZESuction Line OD in (mm) 1 3/8 (34.93) 1 1/8 (28.58) 1 3/8 (34.93) 1 3/8 (34.93) 1 3/8 (34.93)Liquid line OD in (mm) 1/2 (12.7) 1/2 (12.7) 1/2 (12.7) 1/2 (12.7) 1/2 (12.7)

CASINGMaterial Galvanized & Electro-galvanized SteelColor Light GrayType of Insulation 10mm Fire Retardant Polyethylene Foam

COILFace Area sq ft (m2) 9.6(0.89) 12.7 (1.18) 14 (1.47) 16.3 (1.51) 18(1.67)Tube Size OD in (mm) 3/8 (9.53) 3/8 (9.53) 3/8 (9.53) 3/8 (9.53) 3/8 (9.53)Tube Type INNER GROOVED TUBERowsFins per inch 14 14 12 15 15Refrigerant Flow Control EXPANSION VALVEDrain Connection Size in (mm) 1 (25.4) 1 (25.4) 1 (25.4) 1 (25.4) 1 (25.4)Drain Connection Type PLASTIC - FEMALE PIPE

FANFan Type DOUBLE INLET CENTRIFUGAL WITH FORWARD CURVED WHEELNo. usedDiameter in (mm) 15 (381.0) 18 (457.2) 18 (457.2) 15 (381.0) 15 (381.0)Width in (mm) 15 (381.0) 18 (457.2) 18 (457.2) 15 (381.0) 15 (381.0)Drive Type BELT-ADJUSTABLE DRIVENominal Airflow2 cfm 4000 5300 6000 7000 8000

MOTORMotor Type TOTALLY ENCLOSED-FAN COOLED, THREE PHASE INDUCTION MOTORNo. of Motor Motor hp hp (kW) 2 (1.5) 2 (1.5) 3 (2.2) 3 (2.2) 5 (3.7)No. of SpeedMotor Speed rpm 1705 1705 1715 1715 1730V/ph/Hz 230/3/60 230/3/60 230/3/60 230/3/60 230/3/60RLA/LRA 5.85-39 5.85-39 7.97-58 7.97-58 13.3-95

FILTERType WASHABLE ALUMINUM AIR FILTERNo. used

1

3

1

1

1

4

1

3

1

1

1

4

2

3

1

1

1

4

2

3

1

1

1

4

2

3

1

1

1

4

2

3

1

1

1

4

2

3

2

1

1

4

2

3

2

1

1

4

2

3

2

1

1

4

2

3

2

1

1

4Size (WxLxD) mm 355 x 635 x 25 927x400x25 927x400x25 555 x 727 x 25 555 x 727 x 25

DIMENSION (HxWxD)Crated (Shipping) mm 1651 x 1499 x 724 1867 x 1702 x 939 1867 x 1702 x 939 1867 x 2299 x 794 1867 x 2299 x 794Uncrated (Net) mm 1523 x 1410 x 635 1751 x 1613 x 850 1751 x 1613 x 850 1751 x 2210 x 702 1751 x 2210 x 702

WEIGHT Uncrated (Net) kg 152.5 273.5 283 353 360

1 MCA - Minimum Circuit Ampacity2 CFM is rated with standard air-dry coil.

TWE120CD/ED TWE160CD/ED TWE180CD/ED TWE210CD/ED TWE240CD/ED

UNIT MODELS TWE120C3/E3 TWE160C3/E3 TWE180C3/E3 TWE210C3/E3 TWE240C3/E3

R22/R407C R22/R407C R22/R407C R22/R407C R22/R407C

11TWE-IOM01-EN0213

Electrical Wiring

TO PUSH BUTTON “2PB”

TTA 150,180,200,240RD

POWER SUPPLY380–415V./3PH./50Hz.

220–230V./1PH./50Hz./60Hz.

EXTERNAL CONTROL

230V./3PH./60Hz.

TWE120-240 (EXPORT)

2PB SWITCH PUSH BUTTONTH THERMOSTAT

2M1,2M2,3M1 AUXILIARY N.O. CONTACT

DEVICE

ID. MOTOR

DESIGNATION

PT POWER TERMINAL

TB TERMINAL BLOCK 1M CONTACTOR BLOWER MOTOR.

3M2,A1,A2 AUXILIARY N.O. CONTACT

PT

L2L3

TTA MODELS

TO TERMINAL BLOCK

POWER SUPPLY

TTA 075,100,120RD13

TH

TB

L1

CONTROL BOX

2M1,2M23M1,3M2

A1,A2

C2{

L2

L1

C1

L3

{

23

13

C3

3M–3

3M–2

3M–1

9695O.L.

2M2/3M2/A2

2M1/3M1/A1

2M/3M

FACTORY WIRING & DEVICE BY MFR.

LEGEND

DESCRIPTION

FIELD WIRING

INDUCTION MOTOR

FUSE

MOTOR

I.D.

TTA 075,100,120RD00TTA 150,180,200,240RD00TTA 150,180,200,240RD0G

1. ALL FIELD WIRING TO BE IN ACCORDANCE WITH NATIONAL ELECTRICCODE (N.E.C.) CANADIAN ELECTRIC CODE AND/OR LOCAL STATE AND CITY CODES. PROVIDE DISCONNECTS FOR ALL POWER SUPPLIES.

2. DRAWING PRACTICES AND SYMBOLS ARE IN ACCORDANCE WITH AIR

3. COMPONENT TERMINAL MARKINGS ARE INDICATED BY ENCIRCLED

4. NUMBERS ON VERTICAL & HORIZONTAL LINE ARE CIRCUIT IDENTIFICATION.

CONDITIONING & REFRIGERATION INSTITUTE (ARI) GRAPHIC

5. THIS UNIT TO BE USED WITH EVAPORATORS OPERATING WITH INA TEMPERATURE RANGE OF 32ºF TO 53.5ºF.

ELECTRICAL STANDARDS.

NUMBERS AND/OR LETTERS.

NOTES

TWE120-240 (DOMESTIC)

Caution : Disconnect the power supply before opening the control box or servicing.

I.D.MOTOR

INDUCTION MOTOR 380V. 3PH. 50HZ.

FIELD WIRING

FACTORY WIRING & DEVICE BY MFR.

TB TERMINAL BLOCK

ID. MOTOR

DESIGNATION DEVICE DESCRIPTION

LEGEND

TB

380V./3PH./50HZ.POWER SUPPLY

L1

N

L3

L2

TWE-IOM01-EN021312

Dimensional Data

606

L

30

1523

1200TWE120

Model No.

TWE120

4651018

H I

Dimensions mm.

405

J K

6351410 402

282578

M N

40820

EModel No.

A B

Dimensions mm.

C D F G

A

F

G

13C

25

1313

D E

13B

10

9

IH

N

M

L

JK

4

3

12

5

13

11

7

2

85

1

6

5 DRAIN CONNECTION ø1"

4 SUCTION HOLE ø2"

3 LIQUID HOLE ø7/8"

2 HIGH VOLTAGE ENTRANCE ø7/8"

1 LOW VOLTAGE ENTRANCE ø7/8"

9 ACCESS PANEL

10 FILTER ACCESS PANEL

8 EVAPORATOR COIL

7 MOTOR

6 BLOWER

12 PULLEY MOTOR

13 BELT

11 PULLEY FAN

VERTICAL

HORIZONTAL

LEFT RIGHT

RETURN AIR OPENING

VERTICAL

RETURN AIR OPENING

HORIZONTAL

1268

1268

409

44

409

48

73

73

HORIZONTAL

WATER LADDER

* FOR HORIZONTAL APPLICATION ONLY

TWE 120 CD / C3TWE 120 ED / E3

13TWE-IOM01-EN0213

Dimensional Data

TWE 160-180 ED / E3

L K J

HI

O

P

8

5

M

N

5

4

3

12

13

11

7

2

1

6

A

10

BE

13

D

9

13

13

25

C

13G

F

298

463

Dimensions mm.

Dimensions mm.

4931248TWE160/180

Model No.I

392

J K

16131751

Model No.

TWE160/180

A

850

B C

29

1429

30

N

240

ML

774

O P

20

F

686

D E

530

G H



3 LIQUID HOLES ø7/8"

4 SUCTION HOLES ø2"


8 EVAPORATOR COIL


9 ACCESS PANEL

6 BLOWER

7 MOTOR

11 PULLEY FAN

13 BELT

12 PULLEY MOTOR

VERTICAL

HORIZONTALLEFT RIGHT

RETURN AIR OPENING

VERTICAL

RETURN AIR OPENING

HORIZONTAL

1467

588

90

1467

588

86 73

73

* FOR HORIZONTAL APPLICATION ONLY

WATER LADDER

HORIZONTAL

TWE 160-180 CD / C3

TWE-IOM01-EN021314

Dimensional Data

TWE 210-240 ED / E3

HI

J

3

94

5

R

Q

NO

P

6

LMK

4

6

13

14

12

8

2

7

1

A

11

25

F

G

13

B

ED

10

13

C

1313

152

Dimensions mm.

1394

Dimensions mm.

TWE210/240

Model No.

TWE210/240

Model No.

492

J

335

K

218265

L M

1751

A B

2210 702

C

408

D

29

1248

30105

N O

652

P Q R

41044

E F

1429

G H I

4 HOLE FOR TXV BULB ø7/8"



5 SUCTION HOLES ø2"

3 LIQUID HOLES ø7/8"

10 ACCESS PANEL

9 EVAPORATOR COIL


8 MOTOR

7 BLOWER


12 PULLEY FAN

13 PULLEY MOTOR

14 BELT

VERTICAL

HORIZONTAL

LEFT RIGHT

446

93 986 986

446

98690 986

VERTICAL

HORIZONTAL

RETURN AIR OPENING RETURN AIR OPENING

RETURN AIR OPENING RETURN AIR OPENING

73

73 * FOR HORIZONTAL APPLICATION ONLYHORIZONTAL

WATER LADDER

TWE 210-240 CD / C3

15TWE-IOM01-EN0213

Dimensional Data

TWE 120TWE 160-180With Plenum (Option)

Note: Horizontal applications with discharge plenum is special option, please contact Trane sales office.

(DOUBLE DEFLECTION)

VERTICAL

HORIZONTAL*

SUPPLY AIR GRILLE

(Special option)

G

DF

E

(DOUBLE DEFLECTION)SUPPLY AIR GRILLE

G

ED

FC

H

B

A

B

A

646204TWE120 1006

Model No.BA

49848 604

Dimensions (mm.)

DC FE

741416

G H

TWE160

TWE180 151450 48

1184216 48 1615

1615852654549

654549 852

152

152

RETURN AIR GRILLE

TWE-IOM01-EN021316

Dimensional Data

TWE 210-240With Plenum (Option)

H

G

EF

D

C

G

B

E

B

F I

C

A

H

HORIZONTAL*(Special option)

VERTICAL

604TWE210

Model No.

79

CA

164 905

B

Dimensions (mm.)

48

D

498

E F

704

G

2216

H

103

I

TWE240 62 1006 79 48 498 604 704 2216 103

B

A

B

SUPPLY AIR GRILLE(DOUBLE DEFLECTION)

SUPPLY AIR GRILLE(DOUBLE DEFLECTION)

RETURN AIR GRILLE

Note: Horizontal applications with discharge plenum is special option, please contact Trane sales office.

17TWE-IOM01-EN02013

Operation and Start-up

PreparationPerform the following checks andinspections before operating the unit:

Inspection Checklist• Unit is mounted securely to the

ceiling support rods (mountingunits).

• Ductwork connections arecomplete.

• Coil connections are complete andtight.

• Condensate drain pan connectionsare complete and tight.

• Electrical connections arecompleted. Wiring is correct and inaccordance with the wiring diagram.

• Ground connection is completed.• Check and retighten if necessary

set screws on the drive, fan pulley,fan bearings and wheel.

• Rotate fan by hand, to ensure that itruns freely and that there is nointerference.

• Check that fan is centrally located inthe housing, axially and radially.

• Check and retighten, if necessary,drive and bearing bolts, motorclamp plate bolts and isolator bolts.

• Check to ensure that pulley arecorrectly aligned and that shafts areparallel.

• Check belt tension as perinstruction given in the maintenancesection.

Start-Up ProceduresAfter completing all times under“Pre-Start-Up”, the unit may be startedand the following checks and adjust-ments performed.

a. Measure the motor voltage andamps on all phases to insure properoperation. Compare these readingswith the motor nameplate.

b. Disconnect load and start motor tocheck the direction of rotation. Ifthe rotation need to be changed,stop the motor completely andchange the direction of rotation.

c. After connecting the load, the motorshould start quickly and runsmoothly. If it does not, the powersupply should be switched off atonce and all connections, as well asthe power supply, be re-checkedbefore re-starting.

d. In the event of excessive vibrationsor unusual noises, the motor shouldbe disconnected from the load andchecked for poor alignment, loosemounting bolts, etc.

e. When the motor has been operatedunder load for a short period oftime, check that the operatingcurrent totally with the nameplatecurrent.

TWE-IOM01-EN021318

Maintenance

WarningDisconnect electrical power sourceand secure in disconnected positionbefore servicing the unit. Failure to doso may result in personal injury ordeath from electrical shock.

Monthly Inspection1. Check condition of air filters and

replace them if necessary.2. Check the drain pan to be sure that

it is clean and free to carry the flowof condensate through the drainline.

3. Check the coil surface forcleanliness. Clean if necessary.

Yearly Inspection1. Replace filters.2. Check coil surface. Clean by

vacuuming or flushing with coldwater. Do not use steam or hotwater.

3. Carry out checks as detailed ininspection checklist in theOperation Section.

4. Inspect the condition of theevaporator fan belt and replace ifnecessary. The belts fitted to TWEunits cannot achieve designperformance without the correcttensioning.

5. Check condition of vibrationisolators, replace if there is any signof wear, loosening or materialdeterioration.

6. Check fan bearings for noisyoperation and excessive lubricantleakage. Replace if necessary.

7. Inspect the condensate drain panand condensate piping to makesure they are clear and will carryaway all water.

8. Inspect the control panel wiring tomake sure connections are tightand insulation is intacted.

Change/Clean FiltersChange or clean air filters at leasttwice a year. Filters will be requiredmore frequent care under high loadcondition or dirty air. A clogged airfilters reduces airflow, cooling capacityand increases energy usage.

To clean permanent filters, the filtermedia and wash it in water to removedust, dirt and lint, allow to drythoroughly before re-installing in theunits. Do not rub or wring.

Permanent filters can also be cleanedby blowing with compressed air inopposite direction of filter airflow.

Belt MaintenanceClean fan belts and pulleys with a drycloth. Oil and grease must be kept offbelts. The use of a belt dressing is notrecommended. When replacing belts,use a matched set.

Do not force belts onto pulleys, butadjust motor position to allowmounting and then re-tighten.

To measure belt tension, use a belttensioner as shown in Figure 9.Determine actual deflection bydepressing one belt with the belttensioner and then adjust the belttension to the correct pounds forceand tighten all set screws to the propertorques.

Deflection

Sp

anForce

Figure 9

19TWE-IOM01-EN0213

Refrigerant Circuit

Head Pressure Too High P

Head Pressure Too Low P P

Suction Pressure Too High P P P P

Suction Pressure Too Low P P P P

Indoor Coil Frosting P P P P

Liquid Floodback (TXV) P

Liquid Floodback (Cap. Tube) P

Electrical

I.D. Motor Won’t Start P P P P P P P P P

P Primary Causes - S Secondary Causes

Trouble Shooting

SystemFaults

Pow

er S

uppl

y

Hig

h Vo

ltage

Wiri

ng

Low

Vol

tage

Wiri

ng

Con

trol T

rans

form

er

Ther

mos

tat

Low

Vol

tage

Fus

e

Circ

uit B

reak

er

Rel

ay (F

an)

Cap

acito

r (Fa

n)

Ther

mal

Cut

out

Low

Indo

or A

irflo

w

Hig

h In

door

Airf

low

Ref

rig. U

nder

char

ge

Ref

rig. O

verc

harg

e

Exce

ssiv

e Ev

ap. L

oad

Che

ck V

alve

(Lea

king

)

Res

trict

ion

LD C

oil

Res

trict

ion

(TXV

or C

AP)

Safety recommendationsTo avoid accidents and damage, thefollowing recommendations should beobserved during maintenance andservice visits:1. The maximum allowable pressures

for system leak testing on low andhigh pressure side are given in thechapter “Installation”. Alwaysprovide a pressure regulator.

2. Disconnect the main supply beforeany servicing on the unit.

3. Service work on the refrigerationsystem and the electrical systemshould be carried out only byqualified and experiencedpersonnel.

Maintenance ContractIt is strongly recommended that yousign a maintenance contract with yourlocal Service Agency. This contractprovides regular maintenance of yourinstallation by a specialist in ourequipment. Regular maintenanceensures that any malfunction isdetected and corrected in good timeand minimizes the possibility thatserious damage will occur. Finally,regular maintenance ensures themaximum operating life of yourequipment. We would remind you thatfailure to respect these installation andmaintenance instructions may result inimmediate cancellation of the warranty.

TrainingThe equipment described in thismanual is the result of many years ofresearch and continuous development.To assist you in obtaining the best useof it, and maintaining it in perfectoperating condition over a long periodof time, the constructor has at yourdisposal a refrigeration and airconditioning service school. Theprincipal aim of this is to giveoperators and maintenance techni-cians a better knowledge of theequipment they are using, or that isunder their charge. Emphasis isparticularly given to the importance ofperiodic checks on the unit operatingparameters as well as on preventivemaintenance, which reduces the costof owning the unit by avoiding seriousand costly breakdown.

TWE-IOM01-EN 0213

TWE-IOM01-EN 090730th-31st Floor, Vanit Building II1126/2 New Petchburi RoadMakkasan, Ratchthevee Bangkok 10400Thailand

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