CAUJ-SVX01D-EN_01232012_ACCU 20-120TR IOM

SAFETY WARNINGOnly qualified personnel should install and service the equipment. The installation, starting up, andservicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specificknowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person couldresult in death or serious injury. When working on the equipment, observe all precautions in the literatureand on the tags, stickers, and labels that are attached to the equipment.

Remote Air-Cooled Condensers

January 2011 CAUJ-SVX01D-EN

Installation, Operation,

and Maintenance

Models A and Later Design Sequences

CAUJ-C20 CAUJ-C40 CAUJ-C80CAUJ-C25 CAUJ-C50 CAUJ-D10CAUJ-C30 CAUJ-C60 CAUJ-D12

Warnings, Cautions and Notices

Warnings, Cautions and Notices. Note that warnings, cautions and notices appear atappropriate intervals throughout this manual. Warnings are provide to alert installing contractorsto potential hazards that could result in death or personal injury. Cautions are designed to alertpersonnel to hazardous situations that could result in personal injury, while notices indicate asituation that could result in equipment or property-damage-only accidents.

Your personal safety and the proper operation of this machine depend upon the strict observanceof these precautions.

Read this manual thoroughly before operating or servicing this unit.

Important

Environmental Concerns!

Scientific research has shown that certain man-made chemicals can affect the earth’s naturallyoccurring stratospheric ozone layer when released to the atmosphere. In particular, several of theidentified chemicals that may affect the ozone layer are refrigerants that contain Chlorine, Fluorineand Carbon (CFCs) and those containing Hydrogen, Chlorine, Fluorine and Carbon (HCFCs). Not allrefrigerants containing these compounds have the same potential impact to the environment.Trane advocates the responsible handling of all refrigerants-including industry replacements forCFCs such as HCFCs and HFCs.

Responsible Refrigerant Practices!

Trane believes that responsible refrigerant practices are important to the environment, ourcustomers, and the air conditioning industry. All technicians who handle refrigerants must becertified. The Federal Clean Air Act (Section 608) sets forth the requirements for handling,reclaiming, recovering and recycling of certain refrigerants and the equipment that is used in theseservice procedures. In addition, some states or municipalities may have additional requirementsthat must also be adhered to for responsible management of refrigerants. Know the applicablelaws and follow them.

ATTENTION: Warnings, Cautions and Notices appear at appropriate sections throughout thisliterature. Read these carefully:

WARNINGIndicates a potentially hazardous situation which, if not avoided, could result indeath or serious injury.

CAUTIONsIndicates a potentially hazardous situation which, if not avoided, could result inminor or moderate injury. It could also be used to alert against unsafe practices.

NOTICE: Indicates a situation that could result in equipment or property-damage onlyaccidents.

WARNING

R-410A Refrigerant under Higher Pressure than R-22!

The units described in this manual use R-410A refrigerant which operates at higher pressuresthan R-22 refrigerant. Use ONLY R-410A rated service equipment or components with theseunits. For specific handling concerns with R-410A, please contact your local Tranerepresentative.Failure to use R-410A rated service equipment or components could result in equipmentexploding under R-410A high pressures which could result in death, serious injury, orequipment damage.

© 2012 Trane All rights reserved CAUJ-SVX01D-EN

Warnings, Cautions and Notices

Trademarks

Trane and the Trane logo are trademarks of Trane in the United States and other countries. Alltrademarks referenced in this document are the trademarks of their respective owners.

WARNING

Proper Field Wiring and Grounding Required!

All field wiring MUST be performed by qualified personnel. Improperly installed and groundedfield wiring poses FIRE and ELECTROCUTION hazards. To avoid these hazards, you MUSTfollow requirements for field wiring installation and grounding as described in NEC and yourlocal/state electrical codes. Failure to follow code could result in death or serious injury.

WARNING

Personal Protective Equipment (PPE) Required!

Installing/servicing this unit could result in exposure to electrical, mechanical and chemicalhazards.

• Before installing/servicing this unit, technicians MUST put on all Personal Protective

Equipment (PPE) recommendedfor theworkbeingundertaken.ALWAYSrefer toappropriate

MSDS sheets and OSHA guidelines for proper PPE.

• When working with or around hazardous chemicals, ALWAYS refer to the appropriate MSDS

sheets and OSHA guidelines for information on allowable personal exposure levels, proper

respiratory protection and handling recommendations.

• If there is a risk of arc or flash, technicians MUST put on all Personal Protective Equipment

(PPE) in accordance with NFPA 70E or other country-specific requirements for arc flash

protection, PRIOR to servicing the unit.

Failure to follow recommendations could result in death or serious injury.

CAUJ-SVX01D-EN 3

Table of Contents

Model Number Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Unit Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Dimensions and Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Unit Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Unit Dimensions & Weight Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Point load and isolator location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Rigging and Center-of-Gravity Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Unit Isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Leveling the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

General Unit Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Main Electrical Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Field Installed Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Refrigerant Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32Liquid Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32Liquid Line Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Discharge (Hot Gas) Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Discharge (Hot Gas) Line Components . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Final Refrigerant Pipe Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36Brazing Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36Leak Testing Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Field Installed Power Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38Main Unit Power Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Power Wire Sizing and Protection Device Equations . . . . . . . . . . . . . . . . 40Field Installed Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Operating Principals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4320-60 Ton Specs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4380-120 Ton Specs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

System Pre-Start Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45System Evacuation Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45Voltage Imbalance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48Electrical Phasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49Verifying Proper Condenser Fan Rotation . . . . . . . . . . . . . . . . . . . . . . . . . 50Low Ambient Damper Adjustment (Factory or Field Installed) . . . . . . . . 51Charging the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

4 CAUJ-SVX01D-EN

Service and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54Fuse Replacement Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54Fall Restraint - Condenser Section Roof . . . . . . . . . . . . . . . . . . . . . . . . . . 54Monthly Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Warranty and Liability Clause . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

CAUJ-SVX01D-EN 5

Model Number Descriptions

20 to 60 Ton

Digit 1 — Unit TypeC = Condenser

Digit 2 — CondenserA = Air-Cooled

Digit 3 — AirflowU = Upflow

Digit 4 — DevelopmentSequenceJ = Fourth

Digit s 5,6,7 — Nominal CapacityC20= 20 TonsC25= 25 TonsC30= 30 TonsC40= 40 TonsC50= 50 TonsC60= 60 Tons

Digit 8 — Power SupplyG = 200/230/60/3 XL4 = 460/60/3 XL5 = 575/60/3 XL

Digit 9 — Condenser Circuit1 = Single (20-30 Ton)2 = Dual (40-60 Ton)

Digit 10 — Design Sequence* = Factory Assigned

Digit 11 — Ambient Control0 = Standard1 = 0 F

Digit 12 — Agency Approval0 = None3 = cULus

Digits 13, 14 — MiscellaneousJ = Corrosion Protected Cond Coil1 = Spring Isolators2 = Rubber Isolators

Note: The service digit for each modelnumber contains 14 digits; all 14digits must be referenced.

6

80 to 120 Ton

Digit 1 — Unit TypeC = Condenser

Digit 2 — CondenserA = Air-Cooled

Digit 3 — AirflowU = Upflow

Digit 4 — DevelopmentSequenceJ = Fourth

Digits 5,6,7 — Nominal CapacityC80= 80 TonsD10= 100 TonsD12= 120 Tons

Digit 8 — Power SupplyF = 230/60/34 = 460/60/35 = 575/60/3E = 200/60/3

Digit 9 — Condenser Circuit2 = Dual Circuit

Digit 10 — Design SequenceA = First

Digit 11 — Ambient Control0 = Standard1 = 0 F

Digit 12 — Agency Approval0 = None2 = CSA3 = cULus

Digits 13, 14 — MiscellaneousJ = Corrosion Protected Cond Coil1 = Spring Isolators

Note: The service digit for each modelnumber contains 14 digits; all 14digits must be referenced.

CAUJ-SVX01D-EN

General Information

Unit Inspection

As soon as the unit arrives at the job site

• Verify nameplate data matches data on sales order and bill of lading (including electrical data).

• Verify that the power supply complies with the unit nameplate specifications.

• Visually inspect the exterior of the unit, including the roof, for signs of shipping damage.

• Check for material shortages. Refer to the Component Layout and Ship with Location illustration.

Important: If the job site inspection of the unit reveals damage or material shortages, file a claim with the carrier immediately. Specify the type and extent of the damage on the bill of lading before signing.

• Visually inspect the internal components for shipping damage as soon as possible after delivery and before it is stored. Do not walk on the sheet metal base pans.

Bridging between unit main supports may consist of multiple 2 by 12 boards or sheet metal grating.

• If concealed damage is discovered, notify the carrier's terminal of damage immediately by phone and by mail. Concealed damage must be reported within 15 days.

• Request an immediate joint inspection of the damage by the carrier and the consignee. Do not remove damaged material from the receiving location. Take photos of the damage, if possible. The owner must provide reasonable evidence that the damage did not occur after delivery.

• Notify the appropriate Trane office before installing or repairing a damaged unit.

Unit Nameplate

One Mylar unit nameplate is located on the outside upper right corner of the control panel door. It includes the unit model number, serial number, electrical characteristics, weight, refrigerant charge, as well as other pertinent unit data. A small metal nameplate with the Model Number, Serial Number, and Unit Weight is located just above the Mylar nameplate, and a third nameplate is located on the inside of the control panel door.

When ordering replacement parts or requesting service, be sure to refer to the specific model number, serial number, and DL number (if applicable) stamped on the unit nameplate.

Unit Description

All air cooled condensing units are designed for outdoor installations with vertical air discharge. These units may be installed on a flat roof or placed on a concrete slab at ground level.

Before shipment, each unit is leak-tested, evacuated, a Nitrogen holding charge is added, and the controls are tested for proper operation.

The condenser coils are an all aluminum Microchannel design. Louvered condenser grilles for coil protection are standard. Direct-drive, vertical discharge condenser fans are provided with built-in current and overload protection.

For “Ship with” items, see Figure 1, p. 8 for 20-60T units, or Figure 2, p. 8 for 80-120 T units.

If low ambient operation is required, low ambient dampers are available as a field or factory installed option.

WARNING

No Step Surface!

Do not walk on the sheet metal drain pan. Walking on the drain pan could cause the supporting metal to collapse, resulting in the operator/technician to fall. Failure to follow this recommendation could result in death or serious injury.

CAUJ-SVX01D-EN 7

General Information

The unit control panel contains all required fan cycling controls, compressor interlocks, and a 115 volt control power transformer. Field wiring, electrical schematics and panel connection diagrams are located inside the control panel access door.

Figure 1. Unit component layout and ‘shipwith’ locations 20 - 60 ton units

Figure 2. Unit component layout and ‘shipwith’ locations 80 - 120 ton units

8 CAUJ-SVX01D-EN

General Information

Table 1. General data

20 Ton 25 Ton 30 Ton 40 Ton 50 Ton 60 Ton 80 Ton 100 Ton 120 Ton

Model Number CAUJC-20 CAUJC-25 CAUJ-C30 CAUJ-C40 CAUJ-C50 CAUJ-C60 CAUJ-C80 CAUJ-D10 CAUJ-D12

Gross Heat Rejection (MBh)(a) 350 402 456 635 819 1002 1269 1639 2004

Condenser Fan Data

Quantity/Fan Dia. Type 2/26"/Prop 3/26"/Prop 3/26"/Prop 4/26"/Prop 6/26"/Prop 6/26"/Prop 8/26"/Prop 12/26"/Prop 12/26"/Prop

Fan Drive Type Direct Direct Direct Direct Direct Direct Direct Direct Direct

No. of Motors/HP Each 2/1.0 3/1.0 3/1.0 4/1.0 6/1.0 6/1.0 8/1.0 12/1.0 12/1.0

Nominal Total CFM 14600 20700 20700 26790 36890 40490 56490 73890 76280

Condenser Coil Data

Number of Coils/Size (Inches) 2/42x71 2/42x71 2/42x71 2/59x71 2/51x96 2/64x96 4/59x71 4/51x96 4/64x96

Size (ft2) 41.4 41.4 41.4 58.2 68.0 85.4 116.4 136 170.7

Rows/Fin per ft 1/276 1/276 1/276 1/240 1/240 1/240 1/240 1/240 1/240

Condenser Storage Capacity (lbs)(b) 18.7 18.7 18.7 23.5 25.0 31.5 47.1 50.0 62.9

Type Microchannel

Refrigerant Data(c)

No. Refrigerant Circuits 1 1 1 2 2 2 2 2 2

Refrigerant Type R-410A R-410A R-410A R-410A R-410A R-410A R-410A R-410A R-410A

Refrigerant Operating Charge (Lbs.)(d) 11.9 11.8 11.8 22.7 23.4 26.4 57.1 59.1 65.3

Minimum Outdoor Air Temperature for Mechanical Cooling

Standard Ambient Operating Range (F) 40-125 40-125 40-125 40-125 40-125 40-125 40-125 40-125 40-125

Low Ambient Option (F) 0 0 0 0 0 0 0 0 0

(a) Gross Heat Rejection is at a 30 F ITD (Initial Temperature Difference) between condensing temperature and ambient air entering condenser (includes the effect of subcooling).

(b) At conditions of 95° ambient, condenser is 95 percent full(c) Condensing units are shipping with nitrogen holding charge only.(d) Operating charge is for condensing unit only, and does not include charge for low side or interconnecting lines.

CAUJ-SVX01D-EN 9

Dimensions and Weights

Unit Clearances

Figure 3, p. 11 and Figure 4, p. 11 illustrate the minimum operating and service clearances for either a single, multiple, or pit application. These clearances are the minimum distances necessary to assure adequate serviceability, cataloged unit capacity, and peak operating efficiency.

Locate the unit as close to the applicable system support equipment as possible, to minimize refrigerant piping lengths.

Unit Dimensions & Weight Information

Overall unit dimensional data for each unit are illustrated in Figure 5, p. 12 to Figure 18, p. 25.

A Center-of-Gravity illustration and the dimensional data are shown in Figure 20, p. 28, Figure 21, p. 28, and Table 3, p. 26.

Table 2, p. 26 lists the typical unit operating and point loading weights.

Foundation

If the unit is installed at ground level, elevate it above the snow line. Provide concrete footings at each support location or a slab foundation for support. See Table 2, p. 26 for the unit operating and point loading weights when constructing the footing foundation.

Anchor the unit to the footings or slab using hold down bolts or isolators. Isolators should be installed to minimize the transmission of vibrations into the building. See “Unit Isolation,” p. 28 for isolator installation instructions.

For rooftop applications, ensure the roof is strong enough to support the unit. See Table 2, p. 26 for the unit operating weights.

Anchor the unit to the roof with hold-down bolts or isolators. Follow the instructions in section “Unit Isolation,” p. 28 for proper isolator placement and installation.

Check with a roofing contractor for proper waterproofing procedures.

NOTICE:

Equipment Damage!

Providing less than the recommended clearances may result in condenser coil starvation or recirculation of hot condenser air.

WARNING

Risk of Roof Collapsing!

Confirm with a structural engineer that the roof structure is strong enough to support the combined weight of the roofcurb and the unit. Refer to the 'Weights' Table 2, p. 26 section for typical unit and curb weights. Failure to ensure proper structural roof support could cause the roof to collapse, which could result in death or serious injury and property damage.

10 CAUJ-SVX01D-EN


Figure 3. Typical installation clearances for single, multiple, or pit applications: 20-60 ton units

Figure 4. Typical installation clearances for single, multiple, or pit applications: 80-120 ton units

CAUJ-SVX01D-EN 11


Figure 5. 20-ton air-cooled condenser

4" CONDUIT MAIN POWER

1 3/4" KO LOW VOLTAGE (30V MAX.)

37 11/16"

3 3/8"

CONTROL PANEL

35 13/16"

31 1/4"29 1/4"

4 1/2"

2 5/8"

5 5/16"

5 3/8"3 3/8"

1/2" X 4 KO (115V)

1/2" X 2 KO (115V)

4 3/8"

6 1/8"

88 5/16"

74 1/4"

60"

11 1/2"18"

1 1/4" x 4 1/2" SLOT FOR 115 VOLT CONTROL

4" LINE VOLTAGEACCESS

78" 5 3/16"

1 13/16"

LOW AMBIENTDAMPER (SEE NOTE 2)

FAN GRILLE

FAN GRILLE

CONTROL PANEL(SEE DETAIL A)

26 13/16"

CONTROL BOX BOTTOM(SEE DETAIL A)

13"6 1/4"

57 5/8"

1 1/4"

8"

72 1/2"

3/4" X 4 MTG HOLES

DOOR 43 1/4" W/ 180 DEG SWING

2 1

4 3

NOTES:1. SEE CONNECTION DRAWING FOR CONNECTION LOCATION AND SIZES.2. LOW AMBIENT DAMPER ONLY COMES WITH SELECTED UNIT .

DETAIL ACONTROL BOX BOTTOM

12 CAUJ-SVX01D-EN


Figure 6. 20-ton air-cooled condenser (connections)

VOLTAGE ACCESS

CONTROL PANEL

7/8" O.D.LIQUID LINE

8 1/16"13"

42"

SCA

LE1,

000

34 1/2"

5 7/16"5 3/4"

LIQUID LINEDISCHARGE LINE

COIL

1 3/8" O.D.DISCHARGE LINE

CONTROL PANEL SIDE

CONTROLPANEL SIDE

PLAN VIEW OF UNIT

CONNECTION DRAWING

CONNECTION DRAWING

CONTROL PANEL SIDE VIEW OF UNIT

ISOMETRIC DRAWING

ORIENTATION VIEW OF UNIT

NOTES:1. VERIFY WEIGHT, CONNECTION, AND ALL DIMENSION WITH

INSTALLER DOCUMENTS BEFORE INSTALLATION

CAUJ-SVX01D-EN 13


Figure 7. 25- and 30-ton air-cooled condenser

1/2" X 4 KO (115V)


1/2" X 2 KO (115V)

CONTROL PANEL

4 1/2"

3 3/8"

5 3/8"2 5/8"

37 11/16"

35 13/16"

5 5/16" 3 3/8"

31 1/4"29 1/4" 4" CONDUIT

MAIN POWER1.6

CONTROL BOX BOTTOM(SEE DETAIL A)

FAN GRILLE

LOW AMBIENTDAMPER (SEE NOTE 2)FAN GRILLE

4" LINE VOLTAGE ACCESS


88 1/2"

60 1/8"

74 1/4"

18"11 1/2"

88 5/16"

78"

4 3/8"

6 1/8" 5 3/16"

1 13/16"

13"6 1/4"


27 1/4"

57 5/8"

1 1/4"

8"

72 1/2"


2 1

34

3/4" X 4 MTG HOLES

CONTROL BOX BOTTOM

DETAIL A


14 CAUJ-SVX01D-EN


Figure 8. 25- and 30-ton air-cooled condenser (connections)

CONTROL PANEL

VOLTAGE ACCESS

SC ALE 1.000

SC

AL

E1

,000

34 1/2"42"

8 1/16"13"

7/8" O.D. LIQUID LINE


5 3/4" 5 7/16"

COIL

LIQUID LINEDISCHARGE LINE


ISOMETRIC DRAWING


CONNECTION DRAWING

CONNECTION DRAWING

PLAN VIEW OF UNIT

CONTROLPANEL SIDE

CONTROLPANEL SIDE NOTES:

1. VERIFY WEIGHT, CONNECTION, AND ALL DIMENSION WITHINSTALLER DOCUMENTS BEFORE INSTALLATION

CAUJ-SVX01D-EN 15



29 1/4"31 1/4"

35 13/16"

37 11/16"

3 3/8"

3 3/8"5 5/16"

2 5/8" 5 3/8"


1/2" X 2 KO (115V)

1/2" X 4 KO (115V)

4 1/2"


CONTROL PANEL

88 9/16"

88 5/16"

22 1/2"16"

4 3/8"

6 1/8"5 3/16"

1 15/16"

88 5/16"

79 1/4"

13"


FAN GRILLE

FAN GRILLE


4" LINE VOLTAGE ACCESS


6 1/4"

32 3/16"

BOTTOM OF CONTROL BOX (SEE DETAIL A)


2

3

6

8"

36 1/8"

36 1/8"

1 1/4"

1

4

5

3/4" X 6 MTG HOLES

85 5/8"

DETAIL ABOTTOM OF CONTROL BOX


16 CAUJ-SVX01D-EN



VOLTAGEACCESS

1 3/8" O.D.DISCHARGE

LIQUID LINE

SCAL E 1,00 0

5 11/16" 5 7/16"

27 7/16"

2 7/8"

41 7/8"

27"

10 1/2"

27 7/16"

49 1/2"

27"

1 3/8" O.D.DISCHARGE


DISCHARGE


CONTROLPANEL


ISOMETRIC DRAWING


CONNECTION DRAWING

CONNECTION DRAWING

PLAN VIEW OF UNIT

CONTROL PANEL SIDE

CONTROLPANEL SIDE



CAUJ-SVX01D-EN 17



29 1/4"31 1/4"

35 13/16"

37 11/16"

3 3/8"

3 3/8"5 5/16"

2 5/8" 5 3/8"


1/2" X 2 KO (115V)

1/2" X 4 KO (115V)

4 1/2"


CONTROL PANEL

88 5/16"113 13/16"

103 1/2"

16"22 1/2"

79 1/4"

1 15/16"

FAN GRILLE


FAN GRILLE




13"6 1/4"

32 1/4"



8 1/8"

48 7/8"

48 7/8"

85 5/8"

3/4" X 6 MTG HOLES

12

34

56

DETAIL ABOTTOM OF CONTROL BOX


18 CAUJ-SVX01D-EN



Note List - 97075

CONTROLPANEL

VOLTAGEACCESS

S CA LE 1, 00 0

SCA

LE

1,00

0

10 13/16"

74 7/16"

10 13/16"

67 3/8"

27 7/16"

61 3/16"

27 7/16"

61 3/16"

5 7/16"5 11/16"

LIQUID LINE






ISOMETRIC DRAWING


CONNECTION DRAWING

CONNECTION DRAWING

PLAN VIEW OF UNIT

CONTROLPANEL SIDE

CONTROLPANEL SIDE



CAUJ-SVX01D-EN 19



29 1/4"31 1/4"

35 13/16"

37 11/16"

3 3/8"

3 3/8"5 5/16"

2 5/8" 5 3/8"


1/2" X 2 KO (115V)

1/2" X 4 KO (115V)

4 1/2"


CONTROL PANEL

FAN GRILLE



FAN GRILLECONTROL PANEL(SEE DETAIL A)

1 15/16"

103 1/2" 5 3/16"

113 13/16"

22 1/2"16"

79 1/4"

114"

88 5/16"

13"


32 3/16"


6 1/4"

3/4" X 6 MTG HOLES


8 1/8"

48 7/8"

48 7/8"

85 5/8"

2 1

34

6 5


BOTTOM OF CONTROL BOX

DETAIL A

20 CAUJ-SVX01D-EN



VOLTAGEACCESS

CONTROLPANEL

SCA

LE1,

000

10 13/16"

74 7/16"

10 13/16"

67 3/8"

27 7/16"

61 3/16"

27 7/16"

61 3/16"

LIQUID LINE




SC AL E 1 ,0 00

5 11/16" 5 7/16"



CONNECTION DRAWING

CONNECTION DRAWING

PLAN VIEW OF UNIT


ISOMETRIC DRAWING

CONTROLPANEL SIDE

CONTROLPANEL SIDE



CAUJ-SVX01D-EN 21



1 13/16"

176 7/16"

83 1/8"30 1/4" 30 1/8"

83 1/4"

88 5/16"

176 11/16"

FAN GRILLE

1 1/4" x 4 1/2"SLOT FOR 115VOLT CONTROL

4" LINEVOLTAGEACCESS

FAN GRILLE

79 1/4"

7"

9"

14"


6 1/4" 13"

16 5/16"

BOTTOM OF CONTROLBOX (SEE DETAIL A)


2 1/4" x 1 1/4" 24 VOLTAGECONTROL WIRING

3/4" X 8MTG HOLES

DOOR 43 1/4" W/180 DEG SWING

1 1/4"

8"

72 1/8"

16"

72 1/8"

85 5/8"

12

4 3

6 5

8 7

29 1/4"31 1/4"

35 13/16"

37 11/16"

3 3/8"

3 3/8"5 5/16"

2 5/8" 5 3/8"

1 3/4" KO LOWVOLTAGE (30V MAX.)

1/2" X 2 KO (115V)

1/2" X 4 KO (115V)

4 1/2"

4" CONDUITMAIN POWER

CONTROL PANEL

DIMENSIONAL DETAIL

DETAIL A


22 CAUJ-SVX01D-EN



VOLT

AGE

ACC

ESS

CO

NTR

OL

PAN

EL

DIS

CH

ARG

ELI

NECO

IL

LIQ

UID

LIN

E

11/

8"O

.D.L

IQU

IDLI

NE

15/

8"D

ISC

HA

RG

ELI

NE

SC

AL

E1 ,

00 0

59/

16"

75/

16"

136

9/16

"

483/

8"

35/

16"

35/

16"

2111

/16"

191/

16"

141/

16"

ISO

ME

TRIC

DR

AW

ING

OR

IEN

TATI

ON

VIE

WO

FU

NIT

PLA

NV

IEW

OF

UN

IT

CO

NN

EC

TIO

ND

RAW

ING

CO

NN

ECTI

ON

DR

AWIN

G

CO

NTR

OL

PA

NE

LS

IDE

VIE

WO

FU

NIT

CO

NTR

OL

PAN

ELSI

DE

CO

NTR

OL

PAN

ELS

IDE

CAUJ-SVX01D-EN 23


Figure 17. 100- and 120-ton air-cooled condenser

1 15/16"

108 11/16"

20 1/16"

5 3/16"

108 5/8"

5 1/8"

20 1/16"

79 1/4"

7"

14"

9"

88 5/16"

FAN GRILLE


4" LINEVOLTAGE ACCESS

1 1/4" x 4 1/2"SLOT FOR 115VOLT CONTROL

FAN GRILLE


BOTTOM OF CONTROLBOX (SEE DETAIL A)

16 3/16"

2 1/4" x 1 1/4" 24 VOLTAGECONTROL WIRING

6 1/4"

13"

3/4" X 8MTG HOLES

DOOR 43 1/4" W/180 DEG SWING

8"

1 1/4"

97 5/8"

16"

97 5/8"

85 13/16"

29 1/4"

31 1/4"

35 13/16"

37 11/16"

3 3/8"

3 3/8"5 5/16"

2 5/8" 5 3/8"

1 3/4" KO LOWVOLTAGE (30V MAX.)

1/2" X 2 KO (115V)

1/2" X 4 KO (115V)

4 1/2"

4" CONDUITMAIN POWER

CONTROL PANEL

DIMENSIONAL DETAIL

DETAIL A


24 CAUJ-SVX01D-EN


Figure 18. 100- and 120-ton air-cooled condenser (connections)

VOLT

AGE

ACCESS

CONTROL

PANEL

COIL

SCALE

1,00

0

75/16

"

DISCHARGELINE

LIQUID

LINE

59/16

"

901/8"

162"

45/16

"41/4"

181/16

"131/16

"

213/8"

11/8"

O.D

.LIQUID

LINE

ISOMETRIC

DRAWING

ORIENTATIO

NVIEW

OFUNIT

PLA

NVIEW

OFUNIT

CONNECTIO

NDRAWIN

G

CONNECTIO

NDRAWING

CONTROLPANELSID

EVIEW

OFUNIT

CONTROL

PANELSIDE

CONTROL

PANELSIDE

CAUJ-SVX01D-EN 25


Weights

Point load and isolator location

Table 2. 20 to 120 ton weights and point load data

Weight CG Locations Weight on isolator mounting location (lbs.)

Tons Model Shipping Operating X Y Loc. 1 Loc. 2 Loc 3. Loc 4. Loc. 5 Loc. 6 Loc. 7 Loc. 8

20 CAUJC20 1163 1188 41.5 32.5 296.3 340.8 358.8 192.1 --- --- --- ---

25 CAUJC25 1213 1238 41.9 32.2 357.1 300.2 318.8 261.9 --- --- --- ---

30 CAUJC30 1211 1236 41.5 32.3 360.9 302.0 316.0 257.1 --- --- --- ---

40 CAUJC40 1758 1808 43.9 46.1 385.9 212.5 181.7 441.8 377.2 208.3 --- ---

50 CAUJC50 2078 2120 52.8 45.8 239.4 211.3 367.5 339.4 495.5 466.6 --- ---

60 CAUJC60 2086 2136 53.0 45.8 238.8 210.9 370.2 342.2 501.6 472.8 --- ---

80 CAUJC80 3142 3212 85.3 54.3 513.5 474.4 459.6 200.2 452.1 196.7 561.6 354.0

100 CAUJC100 3877 3960 111.4 53.9 636.7 402.1 610.1 383.6 605.8 380.5 579.2 361.9

120 CAUJC120 4325 4451 112.2 52.6 687.8 461.8 667.7 447.8 664.4 445.5 644.4 431.5

Figure 19. Mounting and isolator locations (see Table 3, p. 26)

Control Panel

80-120 Ton

1

2

3

4

5

6

7

8Y

X

Control Panel

Control Panel

20-30 Ton 40-60 Ton

1 1

2 2

3 3

4 4

5

6Y Y

X X

Table 3. Isolator mounting locations

Mounting Location

Unit Size 1 2 3 4 5 6 7 8

20/25/30 X 8” 8” 6' 8 1/8” 6' 8 1/8” - - - -

Y 4' 10 3/4” 1 1/4” 4' 10 3/4” 1 1/4” - - - -

40 X 8” 8” 3' 8 1/8” 3' 8 1/8” 6' 8 1/4” 6' 8 1/4” - -

Y 7' 3 1/8” 1 1/4” 7' 3 1/8” 1 1/4” 7' 3 1/8” 1 1/4” - -

50/60 X 8” 8” 4' 8 7/8” 4' 8 7/8” 8' 9 3/4” 8' 9 3/4” - -

Y 7' 3 1/8” 1 1/4” 7' 3 1/8” 1 1/4” 7' 3 1/8” 1 1/4” - -

80 X 8” 8” 6' 8 1/8” 6' 8 1/8” 9' 1/8” 9' 1/8” 14' 1/4” 14' 1/4"

Y 7' 3 1/8” 1 1/4” 7' 3 1/8” 1 1/4” 7' 3 1/8” 1 1/4” 7' 3 1/8” 1 1/4"

100/120 X 8” 8” 8' 9 5/8” 8' 9 5/8” 10' 1 5/8” 10' 1 5/8” 18' 3 1/4 18' 3 1/4”

Y 7' 3 1/8” 1 1/4” 7' 3 1/8” 1 1/4” 7' 3 1/8” 1 1/4” 7' 3 1/8” 1 1/4"

26 CAUJ-SVX01D-EN

Installation

Rigging and Center-of-Gravity Data

A Rigging illustration and Center-of-Gravity dimensional data table is shown in Figure 20, p. 28,Figure 21, p. 28, and Table 2, p. 26. See Table 2, p. 26 for typical unit operating weights table beforeproceeding.

Note: Use spreader bars as shown in diagram. Refer to installation manual or nameplate for unitweight. Refer to installation instructions located inside control panel for further rigginginformation.

1. Rig the condensing unit as shown in Figure 20, p. 28 and Figure 21, p. 28. Attach adequatestrength lifting slings to all four lifting brackets in the unit base rail. Do not use cables, chains,or slings except as shown.

2. Install spreader bars, as shown in Figure 20, p. 28 and Figure 21, p. 28, to protect the unit andto facilitate a uniform lift. The minimum distance between the lifting hook and the top of theunit should be 7 feet.

3. Test-lift the unit to ensure it is properly rigged and balanced, make any necessary riggingadjustments.

4. Lift the unit and position it into place.

WARNING

Improper Unit Lift!

Test lift unit approximately 24 inches to verify proper center of gravity lift point. To avoiddropping of unit, reposition lifting point if unit is not level. Failure to properly lift unit couldresult in unit dropping and possibly crushing operator/technician which could result in deathor serious injury and possible equipment or property-only damage.

WARNING

Heavy Objects!

Ensure that all the lifting equipment used is properly rated for the weight of the unit beinglifted. Each of the cables (chains or slings), hooks, and shackles used to lift the unit must becapable of supporting the entire weight of the unit. Lifting cables (chains or slings) may not beof the same length. Adjust as necessary for even unit lift. Other lifting arrangements couldcause equipment or property damage. Failure to follow instructions above or properly lift unitcould result in unit dropping and possibly crushing operator/technician which could result indeath or serious injury.

CAUJ-SVX01D-EN 27

Installation

Unit Isolation

To minimize unit sound and vibration transmission, us one of the following installation methods:

1. Install the unit directly on an isolated (detached) concrete pad or on isolated concrete footingslocated at each unit load point.

2. Install the optional spring isolators at each mounting location. See “Spring Isolators (availablefor 20-120 ton units),” p. 30.

Note: 20-60 ton units may install the optional neoprene isolators at each mounting locationinstead of the spring isolator. If this is the case, see “Neoprene Isolators (available for 20-60 ton units only),” p. 29.

Figure 20. Rigging and center-of-gravity data: 20-60 ton units

Figure 21. Rigging and center-of-gravity data: 80-120 ton units

Y

Y

28 CAUJ-SVX01D-EN

Installation

Neoprene Isolators (available for 20-60 ton units only)

Install the neoprene isolators at each unit mounting (load) point, using the following procedure:

1. Elevate the unit (one side at a time) to allow access to the base rail mounting holes.

Note: Use solid type blocks, i.e. 4" X 4" wood blocks or similar material to prevent collapsing. Keephands and other body limbs clear of elevated base rail while installing isolators to preventpersonal injury.

2. Align the mounting holes in the base rail of the unit with the holes in the top of the appropriateisolator. Refer to Table 4, p. 29 for the appropriate isolator for each load point.

3. Install a 1/2" NC bolt (field supplied) through the base rail of the unit into the threaded bolt holeof the isolator. Position the isolator to allow access to the mounting holes in the base of theisolator, then tighten securely.

4. Lower the unit and isolator onto the mounting surface. The maximum isolator deflection shouldbe approximately 1/4 inch.

5. Secure the isolator to the mounting surface using the base holes in the isolator.

6. Level the unit carefully. See “Leveling the Unit,” p. 31.

7. After the unit is level, tighten isolator base mounting bolts to secure them to the mountingsurface.

Table 4. Typical neoprene isolator selection & location (20-60 ton units only)

Shipping Weight

Operating Weight

Isolator Part No. On Mounting Location

Tons Model Loc. 1 Loc. 2 Loc 3. Loc 4. Loc. 5 Loc. 6

20 CAUJC20 1163 1188 R-3-RED R-3-RED R-3-RED R-3-BLACK --- ---

25 CAUJC25 1213 1238 R-3-RED R-3-RED R-3-RED R-3-RED --- ---

30 CAUJC30 1211 1236 R-3-RED R-3-RED R-3-RED R-3-RED --- ---

40 CAUJC40 1758 1808 R-3-RED R-3-BLACK R-3-BLACK R-3-RED R-3-RED R-3-BLACK

50 CAUJC50 2078 2120 R-3-BLACK R-3-BLACK R-3-RED R-3-RED R-3-RED R-3-RED

60 CAUJC60 2086 2136 R-3-BLACK R-3-BLACK R-3-RED R-3-RED R-3-RED R-3-RED

Figure 22. Neoprene 20-60 ton data

CAUJ-SVX01D-EN 29

Installation

Spring Isolators (available for 20-120 ton units)

Install the spring isolators at each unit mounting (load) point using the following procedure:

1. Elevate the unit (one side at a time) to allow access to the base rail mounting holes.

Note: Use solid type blocks, i.e. 4" X 4" wood blocks or similar material to prevent collapsing. Keephands and other body limbs clear of elevated base rail while installing isolators to preventpersonal injury.

2. Align the mounting holes in the base rail of the unit with the positioning pin in the top of theappropriate isolator. See Table 5, p. 30 for the appropriate isolator for each load point.

3. Position the isolator to allow access to the mounting holes in the base of the isolator.

4. Lower the unit onto the isolator. The positioning pin on the isolator must engage into the holeof the base rail. The clearance between the upper and lower isolator housings should beapproximately 1/4 to 1/2 inch. Refer to Figure 23, p. 30. A clearance greater than 1/2 inchindicates that shims are required to level the unit. See “Leveling the Unit,” p. 31.

5. Make minor clearance adjustments by turning the isolator leveling bolt (Figure 23, p. 30)clockwise to increase the clearance and counterclockwise to decrease the clearance. If properisolator clearance cannot be obtained by turning the leveling bolt, level the isolatorsthemselves. A 1/4 inch variance in elevation is acceptable.

6. Secure the isolator to the mounting surface using the base holes in the isolator.

7. After the unit is level, tighten the isolator base mounting

Figure 23. Spring isolator 20-120 ton data

Table 5. Typical spring isolator selection and location

Mdl CA Weights

CG Locations Isolator Part No. On Mounting Location

Tons Ship Oper X Y Loc. 1 Loc. 2 Loc 3. Loc 4. Loc. 5 Loc. 6 Loc. 7 Loc. 8

20 1163 1188 41.5 32.5 CP-1D-340 CP-1D-510 CP-1D-510 CP-1D-340 --- --- --- ---

25 1213 1238 41.9 32.2 CP-1D-510 CP-1D-340 CP-1D-340 CP-1D-340 --- --- --- ---

30 1211 1236 41.5 32.3 CP-1D-510 CP-1D-340 CP-1D-340 CP-1D-340 --- --- --- ---

40 1758 1808 43.9 46.1 CP-1D-510 CP-1D-340 CP-1D-340 CP-1D-510 CP-1D-510 CP-1D-340 --- ---



80 3142 3212 85.3 54.3 CP-1D-675 CP-1D-510 CP-1D-510 CP-1D-340 CP-1D-510 CP-1D-340 CP-1D-675 CP-1D-510



30 CAUJ-SVX01D-EN

Installation

Leveling the Unit

Before tightening the mounting bolts, level the unit carefully. Use the unit base rail as a reference.Level the unit to within 1/4 inch over its entire length. Use shims if adjustable isolators (neoprene)are not used.

If adjustable isolators (spring) are used, ensure that the proper isolator housing clearance ismaintained while leveling the unit. Isolators are identified by color and/or an isolator part number.Shims under the isolators may be required if the unit can not be leveled using the isolator levelingbolt.

General Unit Requirements

The checklist listed below lists steps required to successfully install a commercial air cooledcondenser. This checklist is intended to assist installing personnel with installation process. It doesnot replace detailed instruction called out in the applicable sections of this manual.

• Verify that the power supply complies with unit nameplate specifications.

• Check the unit for shipping damage and material shortage; file a freight claim and notify Traneoffice.

• Verify installation location of the unit will has required clearance for proper operation.

• Install appropriate isolators, if required.

Piping

• Install properly sized liquid line(s) between the liquid line connections on the unit and theevaporator. (i.e., DX evaporator or an EVP Chiller Barrel). Refer to the “Refrigerant Piping,” p. 32section for recommended liquid line components and guidelines.

• Install properly sized discharge (hot gas) line(s) between the discharge line connections on theunit and the compressor unit. Refer to the “Refrigerant Piping,” p. 32 section for recommendeddischarge line components and guidelines.

• Install shutoff valves in the liquid line(s) to isolate the filter drier(s) for service.

• Install proper filter driers in each liquid line.

• Leak test thesystem.Refer to the“LeakTestingProcedure,”p. 37 for recommendedprocedures.

Main Electrical Power Requirements

• Verify the power supply meets the required power requirements of the system.

• Install power wiring in accordance with all applicable codes.

• Install and connect properly sized power supply wiring, with over current protection, to themain power terminal block (1TB1) in the unit control panel.

• Install proper grounding wires to an earth ground.

WARNING



CAUJ-SVX01D-EN 31

Installation

Field Installed Control Wiring

• Verify the Control transformer (1T1) is wired for the proper operating voltage.

• Install the interlock circuitry wiring between the unit and the appropriate compressor unit topermit condenser fan operation when the compressor starter auxiliary contacts closes. Referto the Field Connection Diagram that shipped with the unit for interlocking information.

• Verify the appropriate jumpers have been installed on the unit to allow proper condenser fanoperation (If applicable). Refer to the control wiring diagram that shipped with the unit forjumper details.

Refrigerant Piping

Refrigerant piping must be properly sized and applied. These two factors have a very significanteffect on both system performance and reliability.

Note: Use Type “L” refrigerant grade copper tubing only.

Refrigerant Piping should be sized and laid out according to the job plans and specifications. Thisshould be done when the system components are selected. The primary objective when sizingrefrigerant piping for this unit is to make refrigerant line sizes as small as possible while avoidingexcessive refrigerant pressure drops.

Sizing refrigerant lines as small as possible minimizes the required refrigerant charge andmaximizes compressor life.

Trane recommends that the Refrigerant Line Sizing program in the “Trane C.D.S. ApplicationToolbox" be used to size the refrigerant lines. This program supersedes the line sizing tables in boththe Trane Reciprocating Refrigeration publication and the Trane Air Conditioning Manual. If you donot have access to this program, contact your local Trane Commercial Sales office for assistance.

Liquid Lines

Basic sizing parameters with the system operating at full load for liquid lines are:

• Maximum Liquid velocity: 600 fpm

• Maximum allowable pressure drop: 7 psig (1o F)

As the pressure drop in the liquid line increases, the potential for liquid flashing, due to reducedrefrigerant pressure corresponding to a reduced liquid temperature (subcooling), increases. Underthese conditions, liquid lines exposed to high surrounding ambient temperatures must beinsulated.

Note: Adding refrigerant to a system with improperly sized refrigerant lines will only decreasesystem performance and reliability and accentuate poor operating condition.

Isolate all refrigerant lines from the building. This prevents transferring line vibration to thestructure. Do not secure the lines rigidly to the building at any point since this will defeat theisolation system of the unit.

Refer to the appropriate unit illustration in Figure 5, p. 12 through Figure 18, p. 25 for refrigerantline size connections and locations. Connect the liquid line piping to the stubs provided at the liquidline shutoff valves.

Note: The installer must cut an appropriately-sized opening in the unit sheet metal for therefrigerant piping entrance into the unit.

32 CAUJ-SVX01D-EN

Installation

Liquid Line Components

Filter driers and valves (expansion valves, charging valves, etc.) should be provided in the liquidlines just before the evaporator. Minimize the use of valves, reducers and tube bends as much aspossible to avoid excessive pressure drop before the expansion valve.

Liquid Line Filter Drier

Install the filter driers (provided by the installer) in the liquid lines as close as possible to theexpansion valves. Locate them upstream of the moisture indicator and solenoid valves (Solenoidvalves may not be applicable).

Liquid Line Moisture Indicators

To aid in troubleshooting, charging and servicing the system, install moisture indicators in theliquid lines near the evaporator, down stream of the liquid line drier between the solenoid valve(if applicable) and the expansion valve.

Liquid Line Solenoid Valves

Liquid line solenoid valves are not recommended on units when they are connected to DX coils.Liquid line solenoid valves are recommended for refrigerant migration control when they areconnected to an EVP chiller and should be connected as described in the “Electrical Wiring”section.

Thermostatic Expansion Valve (TXV)

Trane recommends a balance-ported externally equalized valve to maintain satisfactory superheatcontrol down to lower valve loading conditions and to compensate for pressure drops betweenexpansion valve and superheat control point (evaporator refrigerant outlet). For fin and tubeevaporator applications, a 30% bleed port TXV is required for 20-60T units, and a 15% bleed portis required for 80-120T units.

For proper refrigerant distribution into coil, an expansion valve is required for each coil distributor.

NOTICE:

Equipment Damage!

Do not use any solenoid valve as a pumpdown device. Equipment damage will occur.

CAUJ-SVX01D-EN 33

Installation

Table 6. Valve selections

Applicable Units

Capacity

Bleed Selection Minimum Maximum

0 Any BPHE or any Fin and Tube OK Coils

BBIZE-1-1/2-GA 2 2

BBIZE-2-GA 2 3

BBIZE-3-GA 2.5 4

BBIZE-4-GA 3.5 5.5

BBIZE-5-GA 4.5 6.5

BBIZE-6-GA 5.5 7.5

BBIZE-8-GA 6.5 10.5

BBIZE-12-1/2-GA 8.5 13.5

BBIZE-15-GA 11 16.5

OZE-20-GA 13 22

OZE-25-GA 17 26

OZE-35-GA 20.5 39

OZE-50-GA 30.5 59

OZE-60-GA 45.5 70

15% 80-120 MCHE

BBIZE-1-1/2-GA (BP/15) 2 2.5

BBIZE-2-GA (BP/15) 2.5 3

BBIZE-3-GA (BP/15) 3 4.5

BBIZE-4-GA (BP/15) 4 6

BBIZE-5-GA (BP/15) 5 7.5

BBIZE-6-GA (BP/15) 6 9

BBIZE-8-GA (BP/15) 7 12

BBIZE-12-1/2-GA (BP/15) 9.5 15.5

BBIZE-15-GA (BP/15) 12.5 19

OZE-20-GA (BP/15) 15 25

OZE-25-GA (BP/15) 19.5 30

OZE-35-GA (BP/15) 23.5 45

OZE-50-GA (BP/15) 35 68

OZE-60-GA (BP/15) 52.5 70

30% 20-60T MCHE

BBIZE-1-1/2-GA (BP/30) 2 3

BBIZE-2-GA (BP/30) 2.5 3.5

BBIZE-3-GA (BP/30) 3.5 5

BBIZE-4-GA (BP/30) 4.5 7

BBIZE-5-GA (BP/30) 6 8.5

BBIZE-6-GA (BP/30) 7 10

BBIZE-8-GA (BP/30) 8 13.5

BBIZE-12-1/2-GA (BP/30) 11 17.5

BBIZE-15-GA (BP/30) 14 21.5

OZE-20-GA (BP/30) 17 28.5

OZE-25-GA (BP/30) 22 30

34 CAUJ-SVX01D-EN

Installation

Discharge (Hot Gas) Lines

Discharge lines should be pitched downward 1/2 inch for each 10 feet of horizontal run in thedirection of hot gas flow and away from the compressor. Insulate any portion of the dischargepiping that is exposed to outdoor ambient temperature.

Discharge line sizing is based on minimum velocity required for good oil movement in system.

Basic discharge line parameters are:

• Maximum allowable pressure drop: 6 psig

• Maximum velocity: 3500 fpm

Minimum velocities at Minimum Load:

• Horizontal Lines: 500 fpm

• Vertical Lines: Refer to the Table 7, p. 35

A double riser system may be necessary to meet the discharge line velocity requirements.

When either a single or double discharge riser is used, the line should drop well below thedischarge outlet of the compressor before starting the vertical rise to prevent the possibility ofrefrigerant draining back to the compressor during the “Off” cycle.\

Discharge (Hot Gas) Line Components

Field supplied hot gas mufflers, pipe anchors, single or double risers, oil traps, etc. as applicable,should be provide to prevent excessive line vibration and assure proper oil return to thecompressor for proper system operation.

A field supplied discharge “shutoff” valve in each hot gas line near the condenser is recommendedto facilitate refrigerant storage in the condenser during service procedures.

A “constant drain” oil trap is illustrated below and can be used as an alternative to a double riserapplication. The constant drain oil trap assures adequate oil return to the suction line even at partload conditions. Refer to “Reciprocating Direct Expansion Piping Systems” (AM-REF 1/82) forsuggested piping arrangement details.

Table 7. Minimum vertical line velocities

Line Dia. Minimum Velocity (fpm) Line Dia. Minimum Velocity (fpm)

7/8" 470 2-1/8" 750

1-1/8" 540 2-5/8" 825

1-3/8" 600 3-1/8" 915

1-5/8" 650 3-5/8" 975

Figure 24. Hot gas line components

Oil Trap

Drip Leg

Hot Gas

1/4" Solenoid

Filter

Oil ReturnLine

5 feet of 1/8"Copper Tubing

Valve

CAUJ-SVX01D-EN 35

Installation

Final Refrigerant Pipe Connections

To access the refrigerant pipe connections, remove the louvered side grills. Refer to Figure 5, p. 12through Figure 18, p. 25.

These condensing units are shipped with a Nitrogen holding charge. Install pressure gauges to theappropriate access valve(s) and take a reading. If no pressure is present, refer to the “Leak TestingProcedure” section. If pressure is present, relieve the pressure before attempting to unsweat the“seal” caps. If refrigerant connections are not capped, but are “spun-end” tubes, use a tubingcutter to remove the end from the pipe.

Brazing Procedures

Proper brazing techniques are essential when installing refrigerant piping. The following factorsshould be kept in mind when forming sweat connections.

1. When copper is heated in the presence of air, Copper oxide forms. To prevent copper oxide fromforming inside the tubing during brazing, sweep an inert gas, such as dry nitrogen, through thetubing. Nitrogen displaces air in the tubing and prevents oxidation of the interior surfaces. Anitrogen flow of one to three cubic feet per minute is sufficient to displace the air. Use a pressureregulating valve or flow meter to control the flow.

2. Ensure that the tubing surfaces to be brazed are clean, and that the ends of the tubes have beencarefully reamed to remove any burrs.

3. Make sure the inner and outer tubes of the joint are symmetrical and have a close clearance,providing an easy slip fit. If the joint is too loose, the tensile strength of the connection will besignificantly reduced. The overlap distance should be equal to the diameter of the inner tube.

4. Wrap the body of each refrigerant line component with a wet cloth to keep it cool during brazing.Move any tube entrance grommets away for the brazing area.

Note: Use 40 to 45% silver brazing alloy (BAg-7 or BAg-28) on dissimilar metals. Use BCup-6brazing alloy on copper to copper joints.

5. If flux is used, apply it sparingly to the joint. Excessive flux can enter the system which willcontaminate the refrigerant system.

6. Apply heat evenly over the length and circumference of the joint to draw the brazing materialinto the joint by capillary action. Remove the brazing rod and flame from the joint as soon asa complete fillet is formed to avoid possible restriction in the line.

7. Visually inspect the connection after brazing to locate any pin holes or crevices in the joint. Theuse of a mirror may be required, depending on the joint location.

NOTICE:

Equipment Damage!

To prevent damage to the system, do not drill a hole in the seal caps or saw the ends off pipestubs. This could introduce copper chips into the system piping.

WARNING

Hazard of Explosion!

Use only dry nitrogen with a pressure regulator for pressurizing unit. Do not use acetylene,oxygen or compressed air or mixtures containing them for pressure testing. Do not usemixtures of a hydrogen containing refrigerant and air above atmospheric pressure for pressuretesting as they may become flammable and could result in an explosion. Refrigerant, whenused as a trace gas should only be mixed with dry nitrogen for pressurizing units. Failure tofollow these recommendations could result in death or serious injury or equipment orproperty-only damage.

36 CAUJ-SVX01D-EN

Installation

Leak Testing Procedure

When Leak-testing a refrigerant system, observe all safety precautions.

Trane condensing units are shipped with a Nitrogen holding charge. If there is no pressure, the unitmust be leak tested to determine the location of leak as follows:

Note: These service procedures require working with refrigerant, Do NOT release refrigerant tothe atmosphere! The service technician must comply with all federal, state, and local laws.Refer to general service bulletin MSCU-SB-1 (latest edition).

Use refrigerant gas as a tracer for leak detection and use oil-pumped dry nitrogen to develop therequired test pressure. Test the high and low side of the system at pressures dictated by local codes.

1. Close the field supplied liquid line service valve(s) installed near the evaporator and thecompressor discharge service valve to isolate the system's high side from the low side.Pressure test the liquid line, discharge line, and condenser coils at pressures dictated by localcodes. Do not exceed 10# above the pressure control settings.

2. Connect a refrigerant cylinder to the charging port of the liquid line service valve. Use therefrigerant to raise the high side pressure to 12 to 15 psig.

3. Disconnect the refrigerant cylinder. Connect a dry nitrogen cylinder to the charging port andincrease the high side pressure. Do not exceed the condenser maximum working pressurelisted on the unit nameplate.

4. Use a halide torch, halogen leak detector or soap bubbles to check for leaks. Check all pipingjoints, valves, etc...

5. If a leak is located, use proper procedures to remove the refrigerant/nitrogen mixture, break theconnection and remake as a new joint. Retest for leaks after making repairs.

6. Repeat the test procedure for the low side of the system, charging through the suction pressuregauge port or through an access provided on the suction line by the installer. Increase thesystem pressure to 100 psig.

7. If a leak is located, use proper procedures to remove the refrigerant/nitrogen mixture, break theconnection and remake as a new joint. Retest for leaks after making repairs.

8. Open the liquid line service valve and the compressor discharge service valve.

WARNING


Never use an open flame to detect gas leaks. It could result in an explosion. Use a leak testsolution for leak testing. Failure to follow recommended safe leak test procedures could resultin death or serious injury or equipment or property-only-damage.

WARNING


Use only dry nitrogen with a pressure regulator for pressurizing unit. Do not use acetylene,oxygen or compressed air or mixtures containing them for pressure testing. Do not usemixtures of a hydrogen containing refrigerant and air above atmospheric pressure for pressuretesting as they may become flammable and could result in an explosion. Refrigerant, whenused as a trace gas should only be mixed with dry nitrogen for pressurizing units. Failure tofollow these recommendations could result in death or serious injury or equipment orproperty-only damage.

CAUJ-SVX01D-EN 37

Installation

Field Installed Power Wiring

An overall dimensional layouts for the field installed wiring entrance into the unit are illustrated inFigure 5, p. 12 through Figure 18, p. 25. To insure that the unit’s supply power wiring is properlysized and installed, follow the guidelines outlined below.

Note: All field installed wiring must conform to NEC guidelines as well as State and Local codes.

Verify that the power supply available is compatible with the unit’s nameplate ratings. The availablesupply power must be within 10% of the rated voltage stamped on the nameplate. Use only copperconductors to connect the 3-phase power supply to the unit.

Main Unit Power Wiring

Table 8, p. 39 and Table 9, p. 39 list the field connection wire ranges for the main power terminalblock 1TB1. Table 10, p. 42 lists the condensing unit electrical data. The electrical service must beprotected from over current and short circuit conditions in accordance with NEC requirements.Protection devices must be sized according to the electrical data on the nameplate. Refer to the“Electrical Service Sizing Equations”, for determining;

• Electrical service wire size based on “Minimum Circuit Ampacity" (MCA).

• “Maximum Over Current Protection” (MOP) device.

• “Recommended Dual Element fuse size” (RDE).

1. A field supplied disconnect switch must be installed at or near the unit in accordance with theNational Electrical Code (NEC latest addition). Refer to the “Electrical Service Sizing Equations”(DSS calculation), for determining the correct size.

2. Complete the unit's power wiring connections onto the main terminal block 1TB1 inside the unitcontrol panel. Refer to the customer connection diagram that shipped with the unit for specifictermination points.

3. Provide proper supply power (with over current protection) to the Compressor unit and AirHandling unit (“No Control”, “VAV”, and “Constant Volume”) applications. For chilled watersystems, provide a properly sized power supply to the circulating pump motor (EVP controlapplications). Be certain that these components are properly grounded.

4. Provide proper grounding for the unit in accordance with local and national codes.

WARNING



NOTICE:

Use Copper Conductors Only!

Unit terminals are not designed to accept other types of conductors. Failure to use copperconductors could result in equipment damage.

38 CAUJ-SVX01D-EN

Installation

Table 8. Customer connection wire range: 20-60 ton units

Customer wire selection and fuse replacement

Power Wire Selection to Main Terminal Block (1TB1)

Unit Voltage Terminal Block Size Connector Wire Range

All 175A (1) #14-2/0

Control Wire Selection to Control Terminal Block (1TB2) “See Note 6"

Wire Gauge OHMS per 1000 Feet

18 8

16 5

14 3

12 2

Table 9. Customer connection wire range (80-120 ton units)

Customer wire selection and fuse replacement

Power Wire Selection to Main Terminal Block (1TB1)

Unit Voltage Terminal Block Size Connector Wire Range

All 175 AMP (1) #12-2/0

Control Wire Selection to Control Terminal Block (1TB4) “See Note 6"

Wire Gauge OHMS per 1000 Feet Max Wire Length

18 8 500 FT

16 5 1000 FT

14 3 2000 FT

12 2 3000 FT

CAUJ-SVX01D-EN 39

Installation

Power Wire Sizing and Protection Device Equations

To correctly size the main power wiring for the unit, use the appropriate calculation(s) listed below.Read the load definitions that follow and use Calculation #1 for determining the MCA (MinimumCircuit Ampacity), MOP (Maximum Over current Protection), and RDE (Recommended DualElement fuse size) for each unit. Use Calculation #2 to determine the DSS (Disconnect Switch Size)for each unit.

Load Definitions:

• LOAD 1 = CURRENT OF THE LARGEST MOTOR (COMPRESSOR OR FAN MOTOR)

• LOAD 2 = SUM OF THE CURRENTS OF ALL REMAINING MOTORS

• LOAD 4 = CONTROL POWER TRANSFORMER = AND ANY OTHER LOAD RATED AT 1 AMP ORMORE

Calculation #1 (MCA, MOP, and RDE)

• MCA = (1.25 x LOAD 1) + LOAD 2 + LOAD 4

• MOP = (2.25 x LOAD 1) + LOAD 2 + LOAD 4

Select a fuse rating equal to the MOP value. If the MOP value does not equal a standard fuse sizeas listed in NEC 240 - 6, select the next lower standard fuse rating.

Note: If selected MOP is less than the MCA, then select the lowest standard maximum fuse sizewhich is equal to or larger than the MCA, provided the selected fuse size does not exceed800 amps.

• RDE = (1.5 x LOAD 1) + LOAD 2 + LOAD 4

Select a fuse rating equal to the RDE value. If the RDE value does not equal a standard fuse size aslisted in NEC 240 - 6 select the next higher standard fuse rating.

Note: Note: If the selected RDE is greater than the selected MOP value, then select the RDE valueto equal the MOP value.

Calculation #2

Disconnect Switch Sizing (DSS)

• DSS = 1.15 X (LOAD 1 + LOAD 2 + LOAD 4)

40 CAUJ-SVX01D-EN

Installation

Field Installed Control Wiring

Before installing any connecting wiring, refer to Figure 5, p. 12 through Figure 18, p. 25 for theelectrical access locations provided on the unit. Install appropriately sized control wiring for the 115volt electrical components as required by the application.

Since the unit-mounted 115V control power transformer (1T1) is provided on all units, it is notnecessary to run a separate 115 volt control power source to the unit.

Note: 200/230 Volt units are shipped with transformer 1T1 wired for 200 volt operation. If the unitis to be operated on a 230 volt power supply, rewire the transformer as shown on the unitschematic.

When the 115 volt control circuit is properly connected to the field provided interlock contacts 5K1for circuit #1 and 5K2 for circuit #2 (if applicable), proper condenser fan cycling and ambient controlfor the remaining fans is achieved with corresponding compressor operation.

Note: All field wiring must conform to NEC guidelines as well as state and local codes.

WARNING



WARNING

Hazardous Voltage!

Disconnect all electric power, including remote disconnects before servicing. Follow properlockout/tagout procedures to ensure the power can not be inadvertently energized. Failure todisconnect power before servicing could result in death or serious injury.

CAUJ-SVX01D-EN 41

Installation

Electrical Data

Table 10. Electrical data

Unit Characteristics Condenser Fan Motor

NominalTons Model No.

ElectricalCharacteristics

AllowableVoltageRange

MinimumCircuit

Ampacity(3),(5)

MaximumFuseSize

(2),(5)No./HP

(1)

FLA(Ea.)(1)

LRA(Ea.)(1)

KW(Ea.)

(1),(4)

20CAUJ-C20GCAUJ-C204CAUJ-C205

200-230/60/3460/60/3575/60/3

180-220/208-254416-508520-635

9.24.13.2

151515

2/1.02/1.02/1.0

4.11.81.4

20.79.07.2

0.90.90.9


200-230/60/3460/60/3575/60/3

180-220/208-254416-508520-635

13.35.94.6

201515

3/1.03/1.03/1.0

4.11.81.4

20.79.07.2

0.90.90.9


200-230/60/3460/60/3575/60/3

180-220/208-254416-508520-635

13.35.94.6

201515

3/1.03/1.03/1.0

4.11.81.4

20.79.07.2

0.90.90.9


200-230/60/3460/60/3575/60/3

180-220/208-254416-508520-635

17.47.76.0

201515

4/1.04/1.04/1.0

4.11.81.4

20.79.07.2

0.90.90.9


200-230/60/3460/60/3575/60/3

180-220/208-254416-508520-635

25.611.38.8

301515

6/1.06/1.06/1.0

4.11.81.4

20.79.07.2

0.90.90.9


200-230/60/3460/60/3575/60/3

180-220/208-254416-508520-635

25.611.38.8

301515

6/1.06/1.06/1.0

4.11.81.4

20.79.07.2

0.90.90.9

80

CAUJ-C80ECAUJ-C80FCAUJ-C804CAUJ-C805

200/60/3230/60/3460/60/3575/60/3

180-220208-254416-508520-635

34341512

40402015

8/1.08/1.08/1.08/1.0

4.14.11.81.4

20.720.79.07.2

0.90.90.90.9

100

CAUJ-D10ECAUJ-D10FCAUJ-D104CAUJ-D105

200/60/3230/60/3460/60/3575/60/3

180-220208-254416-508520-635

50502217

60602520

12/1.012/1.012/1.012/1.0

4.14.11.81.4

20.720.79.07.2

0.90.90.90.9

120

CAUJ-D12ECAUJ-D12FCAUJ-D124CAUJ-D125

200/60/3230/60/3460/60/3575/60/3

180-220208-254416-508520-635

50502217

60602520

12/1.012/1.0112/1.012/1.0

4.14.11.81.4

20.720.79.07.2

0.90.90.90.9

Notes:

1. Electric information is for each individual motor. 2. Maximum fuse size is permitted by NEC 440-22 is 300 percent of one motor RLA plus the RLA of the remaining motors. 3. Minimum circuit ampacity equals 125 percent of the RLA of one motor plus the RLA of the remaining motors. 4. All Kw values taken at conditions of 45°F saturated suction temperature at the compressor and 95°F ambient. 5. Local codes may take precedence.

42 CAUJ-SVX01D-EN

Operating Principals

Standard air cooled condensers function as the outdoor condensing units for appropriately sizedsplit refrigeration systems. These units, operating in conjunction with a matched indoorcompressor/evaporator configuration, provide refrigerant condensing for these systems down toa normal ambient temperature of 40º F. Operation to 0º F ambient is possible with the addition ofexternally mounted low ambient dampers.

All condenser fans are direct drive, 26 inch propeller type. They are driven by 1 HP thermallyprotected motors.

When wired properly, the unit will start and operate satisfactorily as long as the operatingtemperature is above the minimum operating temperature listed in Table 13, p. 52.

The condensing unit operation starts and stops automatically when the cooling demand is initiatedand terminated by the cooling circuit interlock relays. (See illustrations in diagram numbers 2307-9123, 2307-9124, 2307-9125, and 2307-9126)

The control components are mounted in the various areas of the unit as illustrated in diagrams2307-9123, 2307-9124, 2307-9125, and 2307-9126).

20-60 Ton Specs

Condenser fan cycling is accomplished through interlocking the fan operation with compressoroperation (5K1 & 5K2), liquid line pressure switches (4S11 & 4S12). When the low ambient optionis applied, ambient temperature thermostats (1S36 & 1S37) are used to provide additional fancycling control. Table 11, p. 43 lists the condenser fan sequencing data and Figure 27, p. 49illustrates the condenser fan locations with their respective fan and relay designators.

Table 11. Condenser fan sequencing data: 20-60 ton units

Controlling Device (3) Fan "ON" Fan "OFF" Fan Identification

Customer Interlock Circuit 1 5K1 Closed 5K1 Open 2B1, 2B2, 2B3 (1)


Fan Temperature Switch

1S36 (2)

67.5º F 65º F 2B3 (1)

1S37 (2)

67.5º F 65º F 2B6

Fan Pressure Switch

4S11

444 psig 255 psig 2B1 (1)

4S12

444 psig 255 psig 2B6

Notes:

1. Bold fan identifies fans used on 25, 30, 50 & 60 Ton units only. 2. 1S36 and 1S37 normally-closed contacts open on ambient temperature drop to 65°F. Contacts reclose on ambient

temperature rise to 65ºF and 67.5°F.

CAUJ-SVX01D-EN 43

Operating Principals

80-120 Ton Specs

Condenser fan cycling is accomplished through interlocking the fan operation with compressoroperation (6K1 & 6K2), and ambient temperature thermostats (1S42 & 1S43) are used to provideadditional fan cycling control. Table 12, p. 44 lists the condenser fan sequencing data andFigure 28, p. 50 illustrates the condenser fan locations with their respective fan and relaydesignators.

Table 12. Condenser fan sequencing data: 80-120 ton units

Controlling Device Fan ON Fan OFF Fan Identification



Fan Temperature Switch 1S42 (2)

Stage 1

53º F 45º F 4B3 (1)

Stage 2

73º F 65º F 4B1, 4B4 (1)

Fan Temperature Switch 1S43 (2)

Stage 1

53º F 45º F 5B3 (1)

Stage 2

73º F 65º F 5B1, 5B4

Notes:

1. Bold fan identifies fans used on CAUJ-D10 & D12 units only. 2. 1S42 and 1S43 normally-closed contacts open on ambient temperature drop to "OFF" setpoints. Contacts reclose on

ambient temperature rise on "ON" setpoints.

44 CAUJ-SVX01D-EN

System Pre-Start Procedures

Use the checklist provided below in conjunction with the “General Unit Requirement” checklist” toensure that the unit is properly installed and ready for operation. Be sure to complete all of theprocedures described in this section before starting the unit for the first time.

• Turn the field supplied disconnect switch, located upstream of the unit, to the “Off” position.

• Turn the “System” selection switch (at the Remote Panel) to the “Off” position and the “Fan”selection switch (if applicable) to the “Auto” or “Off” position.

• Check all electrical connections for tightness and “point of termination” accuracy.

• Verify that the condenser airflow will be unobstructed.

• Check the condenser fan blades. Ensure they rotate freely within the fan orifices and aresecurely fastened to the fan motor shaft.

• Verify that all compressor service valves, discharge service valves, and liquid line service valvesis back seated on each circuit.

• Inspect the interior of the unit for tools and debris.

System Evacuation Procedures

Each refrigeration circuit for split system applications must be evacuated before the unit can bestarted. Use a rotary type vacuum pump capable of pulling a vacuum of 100 microns or less. Verifythat the unit disconnect switch and the system control circuit switches are “OFF”.

The oil in the vacuum pump should be changed each time the pump is used with a high qualityvacuum pump oil. Before using any oil, check the oil container for discoloration which usuallyindicates moisture in the oil and/or water droplets. Moisture in the oil adds to what the pump hasto remove from the system, making the pump inefficient.

When connecting the vacuum pump to a refrigeration system, it is important to manifold thevacuum pump to both the high and low side of the system (liquid line access valve and suction lineaccess valve). Follow the pump manufacturer’s directions for the proper methods of using thevacuum pump.

WARNING

Hazardous Voltage!


NOTICE:

Compressor Damage!

Do not allow liquid refrigerant to enter the suction line. Excessive liquid accumulation in theliquid lines may result in compressor damage.

NOTICE:

Motor Damage!

Do not, under any circumstances, use a megohm meter or apply power to the windings of acompressor while it is under a vacuum. Electrical shorting between motor windings and/orhousing can occur while in a vacuum, causing motor burnout.

CAUJ-SVX01D-EN 45


The lines used to connect the pump to the system should be copper and of the largest diameterthat can practically be used. Using larger line sizes with minimum flow resistance can significantlyreduce evacuation time. Rubber or synthetic hoses are not recommended for system evacuationbecause they have moisture absorbing characteristics which result in excessive rates ofevaporation, causing pressure rise during the standing vacuum test. This makes it impossible todetermine if the system has a leak, excessive residual moisture, or a continual or high rate ofpressure increase due to the hoses.

An electronic micron vacuum gauge should be installed in the common line ahead of the vacuumpump shutoff valve, as shown in Figure 25, p. 47. Close Valves B and C, and open Valve A. Start thevacuum pump, after several minutes, the gauge reading will indicate the maximum vacuum thepump is capable of pulling. Rotary pumps should produce vacuums of 100 microns or less.

Open Valves B and C. Evacuate the system to a pressure of 300 microns or less. As the vacuum isbeing pulled on the system, there could be a time when it would appear that no further vacuumis being obtained, yet, the pressure is high. It is recommended that during the evacuation process,the vacuum be “Broken”, to facilitate the evacuation process.

To break the vacuum: Shutoff valves A, B, & C and connect a refrigerant cylinder to the chargingport on the manifold. Purge the air from the hose. Raise the standing vacuum pressure in thesystem to “zero” (0 psig) gauge pressure. Repeat this process two or three times during evacuation.

Note: It is unlawful to release refrigerant into the atmosphere. When service procedures requireworking with refrigerants, the service technician must comply with all Federal, State, andlocal laws. Refer to the General Service Bulletin MSCU-SB-1 (latest edition).

Standing Vacuum Test

Once 300 microns or less is obtained, close Valve A and leave valves B and C open. This will allowthe vacuum gauge to read the actual system pressure. Let the system equalize for approximately15 minutes. This is referred to as a “standing vacuum test” where, time versus pressure rise. Themaximum allowable rise over a 15 minute period is 200 microns. If the pressure rise is greater than200 microns but levels off to a constant value, excessive moisture is present. If the pressure steadilycontinues to rise, a leak is indicated. Figure 26, p. 47 illustrates three possible results of the“standing vacuum test”. If a leak is encounter, repair the system and repeat the evacuation processuntil the recommended vacuum is obtained. Once the system has been evacuated, break thevacuum with refrigerant, and complete the remaining “Pre-Start Procedures” before starting theunit.

46 CAUJ-SVX01D-EN


Figure 25. Typical vacuum pump hookup

Figure 26. Evacuation time vs. pressure rise

200

400

600

800

1000

1200

1400

1600

-10 0 10 20 30 40 50 60 70 80 90TIME IN MINUTES

PRES

SUR

E IN

MIC

RO

NS

Continuously increasing pressure indicates the presence of leaks, moisture or both.

State of equilibrium indicates the true amount of moisture left in

the system. It indicates that no leaks are present, but further

evacuation is required.

State of equilibrium indicates the true amount of moisture left in

the system. It indicates that no leaks are present and the

system is properly evacuated. Initial evacuation pressure

CAUJ-SVX01D-EN 47


Voltage Imbalance

Excessive three phase voltage imbalance between phases will cause motors to overheat andeventually fail. The maximum allowable voltage imbalance is 2%. Measure and record the voltagebetween phases 1, 2, and 3 and calculate the amount of imbalance as follows:

% Voltage Imbalance = 100 X [(AV - VD)/(AV)] where;

AV (Average Voltage) = (Volt 1 + Volt 2 + Volt 3)/3

V1, V2, V3 = Line Voltage Readings

VD = Line Voltage reading that deviates the farthest from the average voltage.

Example: If the voltage readings of the supply power measured 221, 230, and 227, the average voltswould be:

(221 + 230 + 227)/3 = 226 Avg.

VD (reading farthest from average) = 221

The percentage of Imbalance equals:

100 X [(226 - 221)/226)] = 2.2%

The 2.2% imbalance in this example exceeds the maximum allowable imbalance of 2.0%. Thismuch imbalance between phases can equal as much as a 20% current imbalance with a resultingincrease in motor winding temperatures that will decrease motor life. If the voltage imbalance isover 2%, notify the proper agencies to correct the voltage problem before operating thisequipment.

Electrical Phasing

Proper electrical phasing can be quickly determined and corrected before starting the unit by usingan instrument such as an Associated Research Model 45 Phase Sequence Indicator and followingthe steps below:

• Turn the field supplied disconnect switch that provides power to terminal block 1TB1 to the“Off” position.

• Connect the phase sequence indicator leads to the terminal block or to the “Line” side of theoptional factory mounted disconnect switch as follows;

Black (phase A) to L1

Red (phase B) to L2

Yellow (phase C) to L3

• Close the main power disconnect switch or circuit protector switch that provides the supplypower to the condensing unit.

• Observe the ABC and CBA phase indicator lights on the face of the sequencer. The ABCindicator light will glow if the phase is ABC. If the CBA indicator light glows, open the disconnectswitch or circuit protection switch and reverse any two power wires.

• Restore the main electrical power and recheck the phasing.

• If the phasing is correct, open the main power disconnect switch or circuit protection switch andremove the phase sequence indicator.

WARNING

High Voltage is Present at Terminal Block 1TB1 or Unit DisconnectSwitch 1S1!

To prevent injury or death form electrocution, it is the responsibility of the technician torecognize this hazard and use extreme care when performing service procedures with theelectrical power energized.

48 CAUJ-SVX01D-EN

Start-Up

Low Ambient Damper Operation

Low Ambient Dampers are available as a factory installed option or can be field-installed. Dampersare used to extend the operation of these units from the standard operational temperatures to aminimum of 0º F without hot gas bypass or 10º F with hot gas bypass. (These values apply whenwind speed across the condenser coil is less than 5 m.p.h.). If typical wind speeds are higher than5 m.p.h., a wind screen around the unit may be required. By restricting the airflow across thecondenser coils, saturated condensing temperatures can be maintained as the ambienttemperatures change.

The low ambient damper actuator controls damper modulation for each refrigerant circuit inresponse to saturated condensing temperature.

Low Ambient Thermostat Operation: 20-60 ton units

In addition to the low ambient dampers on 25, 30, 50 & 60 Ton units, a low ambient thermostat isinstalled to further restrict the airflow across the condenser by cycling the 2B3 condenser fan on25 & 30 Ton units plus 2B6 on 50 & 60 Ton units. The thermostat opens when the ambienttemperature approaches 65º F and closes at approximately 67.5º F.

Low Ambient Thermostat Operation: 80-120 ton units

In addition to the low ambient dampers a two stage low ambient thermostat is installed to furtherrestrict the airflow across the condenser by cycling the 4B1 + 4B6, 5B1 + 5B6 on 100 & 120 Ton units.The final stage thermostats opens when the ambient temperature approaches 65º F and closes at

Figure 27. Condenser fan locations: 20-60 ton units

CAUJ 20 Ton

CAUJ 40 Ton

CAUJ 25 & 30 Ton

CAUJ 50 & 60 Ton

CAUJ-SVX01D-EN 49

Start-Up

approximately 73º F. The second stage opens when the ambient temperature approaches 45º F andcloses at approximately 53º F.

Verifying Proper Condenser Fan Rotation

1. “Open” the field supplied disconnect switch or circuit protector switch that provides power tothe compressor unit and lock it in the “Off” position.

2. Open the disconnect switch or circuit protector switch that provides power to the condensingunit.

3. To Install temporary jumpers:

a. For 20-60 ton units: install temporary jumpers across terminals 1TB2-1 to 1TB2-3, 1TB2-1 to1TB2-8, and the applicable cycling controls, i.e., pressure switches and ambientthermostats, to start the condenser fans, as illustrated in Figure 27, p. 49.

b. For 80-120 ton units: Install temporary jumpers across terminals 1TB4-7 to 1TB4-9, 1TB4-7to 1TB4-11, and the applicable cycling controls, i.e., pressure switches and ambientthermostats, to start the condenser fans, as illustrated in Figure 28, p. 50.

4. “Close” the disconnect switch or circuit protector switch that provides power to the condensingunit. Turn the control circuit switch 1S5 to the “On” position. The fans will start when the poweris applied.

5. Check the condenser fans for proper rotation. The direction of rotation is clockwise whenviewed from the top of the unit.

All Fans are Rotating Backwards

1. Turn the field supplied disconnect switch or circuit protector switch that provides power to thecondensing unit to the “Off” position. Lock the disconnect switch in the open position whileworking at the unit.

2. Interchange any two of the field connected main power wires at the unit terminal block 1TB1in the unit control panel.

3. Remove all temporary jumpers previously installed in step 3 of “Verifying Proper CondenserFan Rotation”.

Figure 28. Condenser fan locations: 80-120 ton units

CAUJ 80 Ton

4B4

4B1

4B6

4B3

5B6

5B3

CAUJ 100 & 120 Ton

WARNING

Rotating Components!

The following procedures involve working with rotating components. Disconnect all electricpower, including remote disconnects before servicing. Follow proper lockout/tagoutprocedures to ensure the power can not be inadvertently energized. Failure to disconnectpower before servicing could result in rotating components cutting and slashing technicianwhich could result in death or serious injury.

50 CAUJ-SVX01D-EN

Start-Up

Note: Interchanging “Load” side power wires at the fan contactors will only affect the individualfan rotation. Ensure that the voltage phase sequence at the main terminal block 1TB1 is ABCas outlined in the “Electrical Phasing” section.

Some Fans are Rotating Backwards;

1. “Open” the field supplied disconnect switch upstream of the unit. Lock the disconnect switchin the “Open” position while working at the unit.

2. Interchange any two of the fan motor leads at the fan contactor for each fan that is rotatingbackwards.

3. Remove all temporary jumpers previously installed in step 3 of “Verifying Proper CondenserFan Rotation”.

Low Ambient Damper Adjustment (Factory or Field Installed)

When a unit is ordered with the low ambient option (i.e., Digit 11 is a “1” in the model number),a damper is factory installed over the lead condenser fan for each refrigeration circuit. SeeFigure 27, p. 49 and Figure 28, p. 50 for damper locations.

For field installation, mount the dampers over the condenser fans at the locations shown inFigure 27, p. 49 and Figure 28, p. 50 and connect the actuator, controller, and sensor for each circuit.(Refer to the Installation Instructions provided with each low ambient damper kit.)

The controller has a factory default setpoint of 80 ºF. This setpoint can be adjusted by installing afield supplied resistor on 2TB34 in the low ambient control panel located in the back of the maincontrol panel. (See the low ambient wiring diagram, that shipped with the unit or with the field kit,for resistance values and installation location.)

Inspect the damper blades for proper alignment and operation. Dampers should be in the closedposition during the “Off” cycle.

If adjustment is required:

1. Remove the sensor leads from the input terminals 6 and 7 for circuit #1 and/or 11 and 12 forcircuit #2. (Controller output signal will go to 0.0 VDC and the damper will drive to the closedposition.)

2. Loosen the actuator clamp.

3. Firmly hold the damper blades in the closed position.

4. Retighten the acuator clamp.

NOTICE:

Actuator Damage!

To prevent damage, do not depress actuator clutch while actuator is energized.

WARNING

Live Electrical Components!

During installation, testing, servicing and troubleshooting of this product, it may be necessaryto work with live electrical components. Have a qualified licensed electrician or otherindividual who has been properly trained in handling live electrical components perform thesetasks. Failure to follow all electrical safety precautions when exposed to live electricalcomponents could result in death or serious injury.

CAUJ-SVX01D-EN 51

Start-Up

To check damper operation, jumper between the sensor input terminals 6 and 7 and/or 11 and 12(if applicable). Controller output signal will go to 10 VDC and the damper will drive to the full openposition.

Charging the System

1. Verify that all discharge service valves and liquid line service valves for each circuit is backseated.

2. Attach a set of service gauges onto the liquid line and discharge line gauge ports for each circuit.

3. Charge liquid refrigerant into the liquid line of each refrigerant circuit with the required amountof R-410A. Refrigerant should be charged into the system by weight.

Use an accurate scale or a charging cylinder to monitor the amount of refrigerant entering thesystem. Refer to Table 14, p. 52 for the recommended refrigerant capacities for the condensingunit. The weight of refrigerant required for the liquid line and liquid line driers are listed inTable 15, p. 53.

If the pressure within the system equalizes with the pressure in the charging cylinder beforecharging is completed, complete the process by vapor charging into the suction (low) side ofthe system after the system has been started.

Table 13, p. 52 gives the minimum starting temperatures for both “Standard” & “Low”Ambient units.

Do not attempt to charge the system with the low ambient dampers and/or hot gas bypassoperating (if applicable). Disable the low ambient dampers in the “Open” position (refer to the“Low Ambient Damper Adjustment” section) and de-energize the hot gas bypass solenoidvalves before proceeding.

4. On units with dual circuits, start only one circuit at a time. To disable the second circuitcompressors, refer to the compressor sequencing information that shipped with thecompressor unit.

5. With the compressors operating, slowly open the “Low Side” valve on the manifold gauge set.The remainder of the refrigerant will be drawn into the system.

6. Once the charging for the operating circuit has been completed, check and record the:

• ambient temperature;

• compressor oil level (each circuit); compressor suction and discharge pressures (eachcircuit);

• superheat and subcooling (each circuit);

Record this data on an “operator’s maintenance log” like the one shown in Table 16, p. 53. If theoperating pressures indicate a refrigerant shortage, measure the system superheat and systemsubcooling. Repeat steps 1 through 6 for the second refrigeration circuit, if applicable.

Table 13. Minimum starting ambient temperatures

Standard Units Low Ambient Units

Unit Size With HGBP No HGBP With HGBP No HGBP

20-60 Ton Units 40 30 10 0

80-120 Ton Units 80-120 Ton Units 40 10 0

Note: Minimum starting ambients in degrees F, based on unit at minimum step of unloading and 5 mph wind across condenser.

Table 14. Recommended refrigerant capacities

Unit Size Operating Charge per Circuit1 Condenser Storage Capacity2

C20 12 19

C25 12 19

52 CAUJ-SVX01D-EN

Start-Up

C30 12 19

C40 11 24

C50 12 25

C60 13 32

C80 29 47

D10 30 50

D12 33 63

Notes:

1. CAUJ-C20 - C30 are single-circuit units; CAUJ-40 - C60 are dual-circuit units; CAUJ 80-120 are dual-circuit units

2. Pounds R-410A per circuit @ 95°F ambient, 95% full

Table 15. Liquid line & drier refrigerant requirements

Liquid Line O.D. Liquid Line Charge Sporlan Part No Drier Refrigerant Charge

5/8" 1.827 C-305-S 1 lb. - 1 oz.

3/4" 2.728C-307-SC-417-S

1 lb. - 1 oz.1 lb. - 8 oz.

7/8" 3.790C-307-SC-417-S

1 lb. - 1 oz.1 lb. - 8 oz.

1-1/8" 6.461 C-419-S 1 lb. - 8 oz.

Note: Refrigerant charge given in ounces per foot.

Table 14. Recommended refrigerant capacities

Unit Size Operating Charge per Circuit1 Condenser Storage Capacity2

Table 16. Sample maintenance log

Date

Current Ambient Temp.

(F)

Refrigerant Circuit #1 Refrigerant Circuit #2

Compr. Oil level

Suct. Press. (Psig)

Disch. Press. (Psig)

Liquid Press. (Psig)

Super-heat (F)

Subcool(f)

Compr. Oil level

Suct. Press. (Psig)

Disch. Press. (Psig)

Liquid Press. (Psig)

Super-heat (F)

Subcool(f)

- ok- Low

- ok- Low

- ok- Low

- ok- Low

- ok- Low

- ok- Low

- ok- Low

- ok- Low

- ok- Low

- ok- Low

- ok- Low

- ok- Low

- ok- Low

- ok- Low

- ok- Low

- ok- Low

- ok- Low

- ok- Low

Note: Check and record the data requested above each month during the cooling season with the unit running

CAUJ-SVX01D-EN 53

Service and Maintenance

Fuse Replacement Data

Fall Restraint - Condenser Section Roof

This unit is built with fall restraint slots located on unit top that must be used during servicing.

Table 17. Fuse replacement selection: 20-60 ton units

Fuse Description Unit Size Unit Voltage Fuse Type Fuse Size

Condenser Fan Fuse(1F1-1F3 on 20-30 ton)(1F1-1F6 on 40-60 ton)

All200/230 Volt

RK525 AMP

460/575 Volt380/415 Volt

15 AMP

Control Ckt Fuse (1F7)20-30 ton All FNQ-R 3.20 AMP

40-60 ton All FNQ-R 6.25 AMP

Compr Protector Fuse(1F8 on 20-60 ton)(1F9 on 40-60 ton)

All All ABC-6 6 AMP

Table 18. Fuse replacement selection: 80-120 ton units

Fuse Description Unit Size Unit Voltage Fuse Type Fuse Size

Control Circuit Fuse (1F1) All All Bussmann SRD-3.2 3.2 AMP

Transformer Fuse(1F12 & 1F13)

All200 Volt230 Volt460 Volt

FNQ-RFNQ-RFNQ-R

3.5 AMP3.2 AMP1.6 AMP

WARNING

Falling Off Equipment!

This unit is built with fall restraint slots located on unit top that MUST be used duringservicing. These slots are to be used with fall restraint equipment that will not allow anindividual to reach the unit edge. However such equipment will NOT prevent falling to theground, for they are NOT designed to withstand the force of a falling individual. Failure to usefall restraint slots and equipment could result in individual falling off the unit which couldresult in death or serious injury.

Figure 29. Fall restraint slot unit location and detail

54 CAUJ-SVX01D-EN


Monthly Maintenance

Air Handling Equipment

Before completing the following checks, turn the system control circuit switch 1S2 and 5S1 to the“Off” position. Open the main power disconnect switch for the Condensing Unit and Air HandlingUnit and “lock it” in the “Off” position before removing any access panels.

• Inspect the return air filters. Clean or replace them if necessary.

• Check the evaporator drain pan and condensate piping to ensure that there are no blockages.

• Inspect the evaporator coils for dirt. If the coils appear dirty, clean them according to theinstructions described in the “Coil Cleaning” section.

• Inspect the economizer damper hinges and pins (if applicable) to ensure that all moving partsare securely mounted. Clean the blades as necessary.

• Verify that all damper linkages move freely; lubricate with white grease, if necessary.

• Check Supply Fan motor bearings; repair or replace the motor as necessary.

• Check the fan shaft bearings for wear. Replace the bearings as necessary.

• Lubricate the supply fan bearings. Refer to the equipment manufacturer for their recommendedgreases.

Note: Over lubrication can be just as harmful as not enough grease. Use a hand greasegun to lubricate these bearings; add grease until a light bead appears all around the seal.Do not over lubricate!

Note: After greasing the bearings, check the setscrews to ensure that the shaft is held securely tothe bearings and Fan wheels. Make sure that all bearing supports are tight.

• Check the supply fan belt(s). If the belts are frayed or worn, replace them.

• Verify that all wire terminal connections are tight.

• Generally inspect the unit for unusual conditions (e.g., loose access panels, leaking pipingconnections, etc.)

• Make sure that all retaining screws are reinstalled in the unit access panels once these checksare complete.

Condensing Unit

• Manually rotate the condenser fans to ensure free movement and check motor bearings forwear. Verify that all of the fan mounting hardware is tight.

• Verify that all wire terminal connections are tight.

WARNING

Hazardous Voltage!


WARNING

Rotating Components!

The following procedure involves working with rotating components. Disconnect all electricpower, including remote disconnects before servicing. Follow proper lockout/tagoutprocedures to ensure the power can not be inadvertently energized. Failure to disconnectpower before servicing could result in rotating components cutting and slashing technicianwhich could result in death or serious injury.

CAUJ-SVX01D-EN 55


• Inspect the condenser coils for dirt and foreign debris. If the coils appear dirty, clean themaccording to the instructions described in the “Coil Cleaning” section.

• Inspect the compressor and condenser fan motor contactors. If the contacts appear severelyburned or pitted, replace the contactor. Do not clean the contacts.

• Check the compressor oil level. (Compressors “Off”)

System operation

• Close the main power disconnect switch for the condensing unit and all system supportequipment. Turn all system control circuit switches to the “On” position.

• With the unit running, check and record the:

– ambient temperature;

– compressor oil level (each circuit);

– compressor suction and discharge pressures (each circuit);

– superheat and Subcooling (each circuit);

• Record this data on an “operator’s maintenance log” similar to the one illustrated in the “FinalSetup” section of this manual. If the operating pressures indicate a refrigerant shortage,measure the system Superheat and system Subcooling. For guidelines, refer to the “SystemStart-Up” section.

Note: Do Not release refrigerant to the atmosphere! If adding or removing refrigerant is required,the service technician must comply with all federal, state and local laws. Refer to generalservice bulletin MSCU-SB-1 (latest edition).

Coil Cleaning

.

Regular coil maintenance, including annual cleaning enhances the unit’s operating efficiency byminimizing:

• compressor head pressure and amperage draw;

• water carryover;

• fan brake horsepower; and,

• static pressure losses.

At least once each year—or more often if the unit is located in a “dirty” environment—clean themicrochannel condenser using the instructions outlined below. Be sure to follow these instructionsas closely as possible to avoid damaging the coils.

WARNING

Live Electrical Components!

During installation, testing, servicing and troubleshooting of this product, it may be necessaryto work with live electrical components. Have a qualified licensed electrician or otherindividual who has been properly trained in handling live electrical components perform thesetasks. Failure to follow all electrical safety precautions when exposed to live electricalcomponents could result in death or serious injury.

NOTICE:

Coil Cleaners!

Coil cleaners can damage roofs, surrounding buildings, vehicles, etc. Cleaning substancesshould be checked to ensure that they will not cause damage to surroundings. Coils and roof (ifapplicable) should be rinsed thoroughly. Do not spray coil cleaners in windy conditions.

56 CAUJ-SVX01D-EN


To clean refrigerant coils, use a soft brush and a sprayer.

Note: DO NOT use detergents with microchannel condenser coils. Pressurized water or air ONLY.

1. Remove enough panels from the unit to gain safe access to coils..

Important: Bridging between the main supports required before attempting to enter into the unit. Bridging may consist of multiple 2 by 12 boards or sheet metal grating.

2. Straighten any bent coil fins with a fin comb.

3. For accessible areas, remove loose dirt and debris from both sides of the coil. For dual row microchannel condenser coil applications, seek pressure coil wand extension through the local Trane Parts Center.

Note: DO NOT use any detergents with microchannel coils. Pressurized water or air ONLY.

4. Pour the cleaning solution into the sprayer. If a high-pressure sprayer is used:

a. The minimum nozzle spray angle is 15 degrees.

b. Do not allow sprayer pressure to exceed 600 psi.

c. Spray the solution perpendicular (at 90 degrees) to the coil face.

5. Spray the leaving-airflow side of the coil first; then spray the opposite side of the coil. For evaporator and reheat coils, allow the cleaning solution to stand on the coil for five minutes.

6. Rinse both sides of the coil with cool, clean water.

7. Inspect both sides of the coil; if it still appears to be dirty, repeat Steps 6 and 7.

8. Reinstall all of the components and panels removed in Step 1; then restore power to the unit.

Microchannel Condenser Coil Repair and Replacement

If microchannel condenser coil repair or replacement is required, seek HVAC Knowledge Center information or Service Guide document RT-SVB83*-EN for further details.

WARNING

No Step Surface!

Do not walk on the sheet metal drain pan. Walking on the drain pan could cause the supporting metal to collapse, resulting in the operator/technician to fall. Failure to follow this recommendation could result in death or serious injury.

CAUJ-SVX01D-EN 57

58 CAUJ-SVX01D-EN

Warranty and Liability Clause

COMMERCIAL EQUIPMENT RATED 20 TONS AND LARGER AND RELATEDACCESSORIES

PRODUCTS COVERED - This warranty* is extended by American Standard Inc. and applies only tocommercial equipment rated 20 Tons and larger and related accessories.

The Company warrants for a period of 12 months from initial start-up or 18 months from date ofshipment, whichever is less, that the Company products covered by this order (1) are free fromdefects in material and workmanship and (2) have the capacities and ratings set forth in theCompany’s catalogs and bulletins, provided that no warranty is made against corrosion, erosionor deterioration. The Company’s obligations and liabilities under this warranty are limited tofurnishing f.o.b. factory or warehouse at Company designated shipping point, freight allowed toBuyer’s city (or port of export for shipment outside the conterminous United States) replacementequipment (or at the option of the Company parts therefore) for all Company products notconforming to this warranty and which have been returned to the manufacturer.The Company shallnot be obligated to pay for the cost of lost refrigerant. No liability whatever shall attach to theCompany until said products have been paid for and then said liability shall be limited to thepurchase price of the equipment shown to be defective.

The Company makes certain further warranty protection available on an optional extra-cost basis.Any further warranty must be in writing, signed by an officer of the Company.

The warranty and liability set forth herein are in lieu of all other warranties and liabilities, whetherin contract or in negligence, express or implied, in law or in fact, including implied warranties ofmerchantability and fitness for particular use. In no event shall the Company be liable for anyincidental or consequential damages.

THE WARRANTY AND LIABILITY SET FORTH HEREIN ARE IN LIEU OF ALL OTHER WARRANTIESAND LIABILITIES, WHETHER IN CONTRACT OR IN NEGLIGENCE, EXPRESS OR IMPLIED, IN LAWOR IN FACT, INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FORPARTICULAR USE, IN NO EVENT SHALL WARRANTOR BE LIABLE FOR ANY INCIDENTAL ORCONSEQUENTIAL DAMAGES.

Manager - Product Service

Trane Inc.

Clarksville, Tn 37040-1008

PW-215-2688

*Optional Extended Warranties are available for compressors and heat exchangers of CombinationGas-Electric Air Conditioning Units.

CAUJ-SVX01D-EN 59

Wiring Diagrams

Note: For easier access, published unit wiring diagrams (individual, separate diagrams for unitaryproduct lines) will become available via e-Library instead of through wiring manuals after2007.

Drawing Number Description

2307-9123 Power Schematic Diagram - Air-Cooled Condensing Unit - Line Voltage 200-230-460-575V/60HZ/3PH - CA 20-60 Ton

2307-9124 Unit & Field Connection Wiring Diagram - Air-Cooled Condensing Unit - Line Voltage 200, 230, 460, 575V/60HZ/3PH - CA 20-60 Ton

2307-9125 Power Schematic Diagram - Split System Condensing Unit - Duplex Condenser Units - CA 80-120 ton

2307-9126 Unit & Field Connection Wiring Diagram - Air-Cooled Condenser Unit - Duplex Condenser Unit - CA 80-120 ton

Trane optimizes the performance of homes and buildings around the world. A business of Ingersoll Rand, theleader in creating and sustaining safe, comfortable and energy efficient environments, Trane offers a broadportfolio of advanced controls and HVAC systems, comprehensive building services, and parts. For moreinformation, visit www.Trane.com.

Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.

We are committed to using environmentally

conscious print practices that reduce waste.

© 2011 Trane All rights reserved

CAUJ-SVX01D-EN 23 Jan 2012

Supersedes CAUJ-SVX01C-EN (10 Oct 2012)

CAUJ-SVX01D-EN_01232012_ACCU 20-120TR IOM

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Transcript of CAUJ-SVX01D-EN_01232012_ACCU 20-120TR IOM