Trane RAUJ CAUJ 20 to 120 Tons Installation Manual

SAFETY WARNINGOnly qualified personnel should install and service the equipment. The installation, starting up, andservicing of heating, ventilating,

10 CAUJ-SVX01D-ENDimensions and WeightsUnit ClearancesFigure 3, p. 11 and Figure 4, p. 11 illustrate the minimum operating and service clearances for

CAUJ-SVX01D-EN 11Dimensions and WeightsFigure 3. Typical installation clearances for single, multiple, or pit applications: 20-60 ton unitsFigure 4. T

12 CAUJ-SVX01D-ENDimensions and WeightsFigure 5. 20-ton air-cooled condenser4" CONDUIT MAIN POWER1 3/4" KO LOW VOLTAGE (30V MAX.)37 11/16&qu

CAUJ-SVX01D-EN 13Dimensions and WeightsFigure 6. 20-ton air-cooled condenser (connections)VOLTAGE ACCESSCONTROL PANEL7/8" O.D.LIQUID LINE8 1/16&q

14 CAUJ-SVX01D-ENDimensions and WeightsFigure 7. 25- and 30-ton air-cooled condenser1/2" X 4 KO (115V) 1 3/4" KO LOW VOLTAGE (30V MAX.)1/2&q

CAUJ-SVX01D-EN 15Dimensions and WeightsFigure 8. 25- and 30-ton air-cooled condenser (connections)CONTROL PANELVOLTAGE ACCESSSCALE1 .0 00SCALE1,00034

16 CAUJ-SVX01D-ENDimensions and WeightsFigure 9. 40-ton air-cooled condenser29 1/4"31 1/4"35 13/16"37 11/16"3 3/8"3 3/8"

CAUJ-SVX01D-EN 17Dimensions and WeightsFigure 10. 40-ton air-cooled condenser (connections)VOLTAGEACCESS1 3/8" O.D.DISCHARGELIQUID LINESCALE1,000

18 CAUJ-SVX01D-ENDimensions and WeightsFigure 11. 50-ton air-cooled condenser29 1/4"31 1/4"35 13/16"37 11/16"3 3/8"3 3/8"

CAUJ-SVX01D-EN 19Dimensions and WeightsFigure 12. 50-ton air-cooled condenser (connections)Note List - 97075CONTROLPANELVOLTAGEACCESSSCALE1,000SCALE1,

© 2012 Trane All rights reserved CAUJ-SVX01D-ENWarnings, Cautions and NoticesWarnings, Cautions and Notices. Note that warnings, cautions and notices

20 CAUJ-SVX01D-ENDimensions and WeightsFigure 13. 60-ton air-cooled condenser29 1/4"31 1/4"35 13/16"37 11/16"3 3/8"3 3/8"

CAUJ-SVX01D-EN 21Dimensions and WeightsFigure 14. 60-ton air-cooled condenser (connections)VOLTAGEACCESSCONTROLPANELSCALE1,00010 13/16"74 7/16&qu

22 CAUJ-SVX01D-ENDimensions and WeightsFigure 15. 80-ton air-cooled condenser113/16"176 7/16"83 1/8"30 1/4"30 1/8"83 1/4"

CAUJ-SVX01D-EN 23Dimensions and WeightsFigure 16. 80-ton air-cooled condenser (connections)VOLTAGEACCESSCONTROLPANELDISCHARGE LINECOILLIQUID LINE1 1/8

24 CAUJ-SVX01D-ENDimensions and WeightsFigure 17. 100- and 120-ton air-cooled condenser1 15/16"108 11/16"20 1/16"5 3/16"108 5/8&qu

CAUJ-SVX01D-EN 25Dimensions and WeightsFigure 18. 100- and 120-ton air-cooled condenser (connections)VOLTAGEAC C E S SCONTROLPANELCOILSCALE1,00075/16&

26 CAUJ-SVX01D-ENDimensions and WeightsWeightsPoint load and isolator locationTable 2. 20 to 120 ton weights and point load dataWeight CG Locations We

CAUJ-SVX01D-EN 27InstallationRigging and Center-of-Gravity DataA Rigging illustration and Center-of-Gravity dimensional data table is shown in Figure

28 CAUJ-SVX01D-ENInstallationUnit IsolationTo minimize unit sound and vibration transmission, us one of the following installation methods:1. Install

CAUJ-SVX01D-EN 29InstallationNeoprene Isolators (available for 20-60 ton units only)Install the neoprene isolators at each unit mounting (load) point,

CAUJ-SVX01D-EN 3Warnings, Cautions and NoticesTrademarksTrane and the Trane logo are trademarks of Trane in the United States and other countries. All

30 CAUJ-SVX01D-ENInstallationSpring Isolators (available for 20-120 ton units)Install the spring isolators at each unit mounting (load) point using th

CAUJ-SVX01D-EN 31InstallationLeveling the UnitBefore tightening the mounting bolts, level the unit carefully. Use the unit base rail as a reference.Le

32 CAUJ-SVX01D-ENInstallationField Installed Control Wiring• Verify the Control transformer (1T1) is wired for the proper operating voltage.• Install

CAUJ-SVX01D-EN 33InstallationLiquid Line ComponentsFilter driers and valves (expansion valves, charging valves, etc.) should be provided in the liquid

34 CAUJ-SVX01D-ENInstallationTable 6. Valve selectionsApplicable UnitsCapacityBleed Selection Minimum Maximum0Any BPHE or any Fin and Tube OK CoilsBBI

CAUJ-SVX01D-EN 35InstallationDischarge (Hot Gas) LinesDischarge lines should be pitched downward 1/2 inch for each 10 feet of horizontal run in thedir

36 CAUJ-SVX01D-ENInstallationFinal Refrigerant Pipe ConnectionsTo access the refrigerant pipe connections, remove the louvered side grills. Refer to F

CAUJ-SVX01D-EN 37InstallationLeak Testing ProcedureWhen Leak-testing a refrigerant system, observe all safety precautions.Trane condensing units are s

38 CAUJ-SVX01D-ENInstallationField Installed Power WiringAn overall dimensional layouts for the field installed wiring entrance into the unit are illu

CAUJ-SVX01D-EN 39InstallationTable 8. Customer connection wire range: 20-60 ton unitsCustomer wire selection and fuse replacementPower Wire Selection

4 CAUJ-SVX01D-ENTable of ContentsModel Number Descriptions ... 6General Information ...

40 CAUJ-SVX01D-ENInstallationPower Wire Sizing and Protection Device EquationsTo correctly size the main power wiring for the unit, use the appropriat

CAUJ-SVX01D-EN 41InstallationField Installed Control WiringBefore installing any connecting wiring, refer to Figure 5, p. 12 through Figure 18, p. 25

42 CAUJ-SVX01D-ENInstallationElectrical DataTable 10. Electrical dataUnit Characteristics Condenser Fan MotorNominalTons Model No.ElectricalCharacteri

CAUJ-SVX01D-EN 43Operating PrincipalsStandard air cooled condensers function as the outdoor condensing units for appropriately sizedsplit refrigeratio

44 CAUJ-SVX01D-ENOperating Principals80-120 Ton SpecsCondenser fan cycling is accomplished through interlocking the fan operation with compressoropera

CAUJ-SVX01D-EN 45System Pre-Start ProceduresUse the checklist provided below in conjunction with the “General Unit Requirement” checklist” toensure th

46 CAUJ-SVX01D-ENSystem Pre-Start ProceduresThe lines used to connect the pump to the system should be copper and of the largest diameterthat can prac

CAUJ-SVX01D-EN 47System Pre-Start ProceduresFigure 25. Typical vacuum pump hookupFigure 26. Evacuation time vs. pressure rise2004006008001000120014001

48 CAUJ-SVX01D-ENSystem Pre-Start ProceduresVoltage ImbalanceExcessive three phase voltage imbalance between phases will cause motors to overheat ande

CAUJ-SVX01D-EN 49Start-UpLow Ambient Damper OperationLow Ambient Dampers are available as a factory installed option or can be field-installed. Damper

CAUJ-SVX01D-EN 5Service and Maintenance ... 54Fuse Replacement Data ...

50 CAUJ-SVX01D-ENStart-Upapproximately 73º F. The second stage opens when the ambient temperature approaches 45º F andcloses at approximately 53º F.Ve

CAUJ-SVX01D-EN 51Start-UpNote: Interchanging “Load” side power wires at the fan contactors will only affect the individualfan rotation. Ensure that th

52 CAUJ-SVX01D-ENStart-UpTo check damper operation, jumper between the sensor input terminals 6 and 7 and/or 11 and 12(if applicable). Controller outp

CAUJ-SVX01D-EN 53Start-UpC30 12 19C40 11 24C50 12 25C60 13 32C80 29 47D10 30 50D12 33 63Notes: 1. CAUJ-C20 - C30 are single-circuit units; CAUJ-40 - C

54 CAUJ-SVX01D-ENService and MaintenanceFuse Replacement DataFall Restraint - Condenser Section RoofThis unit is built with fall restraint slots locat

CAUJ-SVX01D-EN 55Service and MaintenanceMonthly MaintenanceAir Handling EquipmentBefore completing the following checks, turn the system control circu

56 CAUJ-SVX01D-ENService and Maintenance• Inspect the condenser coils for dirt and foreign debris. If the coils appear dirty, clean themaccording to t

CAUJ-SVX01D-EN 57Service and MaintenanceTo clean refrigerant coils, use a soft brush and a sprayer.Note: DO NOT use detergents with microchannel conde

58 CAUJ-SVX01D-ENWarranty and Liability ClauseCOMMERCIAL EQUIPMENT RATED 20 TONS AND LARGER AND RELATEDACCESSORIESPRODUCTS COVERED - This warranty* is

CAUJ-SVX01D-EN 59Wiring DiagramsNote: For easier access, published unit wiring diagrams (individual, separate diagrams for unitaryproduct lines) will

6 CAUJ-SVX01D-EN20 to 60 TonDigit 1 — Unit TypeC = CondenserDigit 2 — CondenserA = Air-CooledDigit 3 — AirflowU = UpflowDigit 4 — DevelopmentSequenceJ

Trane optimizes the performance of homes and buildings around the world. A business of Ingersoll Rand, theleader in creating and sustaining safe, comf

CAUJ-SVX01D-EN 7General InformationUnit InspectionAs soon as the unit arrives at the job site• Verify nameplate data matches data on sales order and b

8 CAUJ-SVX01D-ENGeneral InformationThe unit control panel contains all required fan cycling controls, compressor interlocks, and a 115 volt control p

CAUJ-SVX01D-EN 9General InformationTable 1. General data20 Ton 25 Ton 30 Ton 40 Ton 50 Ton 60 Ton 80 Ton 100 Ton 120 TonModel Number CAUJC-20 CAUJC-25