Trane 2/4WCC30 Series Installer'S Manual Download

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18-EB24D1-1

Installer's Guide

ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES

Single Package Heat Pump, 13 SEER
Convertible, 1

- 5 Ton, R-22/R-410A

2/4WCC3018A through 2/4WCC3060A

2/4WCX3018A through 2/4WCX3060A

WARNING:

HAZARDOUS VOLTAGE - DISCONNECT POWER and DISCHARGE

CAPACITORS BEFORE SERVICING

Important — This Document is customer property. Please return to service information pack and give this Installer's Guide to the homeowner
upon completion of work.

Summary of Contents for 2/4WCC30 Series

Page 1: ...R Convertible 1 5 Ton R 22 R 410A 2 4WCC3018A through 2 4WCC3060A 2 4WCX3018A through 2 4WCX3060A WARNING HAZARDOUS VOLTAGE DISCONNECT POWER and DISCHARGE CAPACITORS BEFORE SERVICING Important This Document is customer property Please return to service information pack and give this Installer s Guide to the homeowner upon completion of work ...

Page 2: ...ow them carefully The manufacturer assumes no liability for installa tions or servicing performed by unqualified personnel WARNING DO NOT OPERATE THE UNIT WITH OUT THE EVAPORATOR FAN ACCESS PANEL OR EVAPO RATOR COIL ACCESS PANEL IN PLACE REINSTALL THE ACCESS PANELS AFTER PERFORMING MAINTENANCE PROCEDURES ON THE FAN OPERATING THE UNIT WITH OUT THE ACCESS PANELS PROPERLY INSTALLED MAY RESULT IN SEVE...

Page 3: ...Unit 17 Condensate Drain Piping 17 Air Filter Installation 18 Electrical Wiring 18 Electrical Connections 18 Electrical Power 18 Disconnect Switch 18 Overcurrent Protection 18 Power Wiring 18 Field Wiring Diagram 19 Control Wiring Class II 20 Step 5 Unit Startup 20 Pre start Quick Checklist 20 Starting the Unit in the Cooling Mode 20 Operating Pressures 20 Voltage Check 20 Cooling Shut Down 20 Sta...

Page 4: ...uide Figure 1 Step2 Determine Unit Clearances WCC3018AthroughWCC3036A 1of2 Figures 1 to 8 show the unit critical dimensions Figures 2 and 4 show the WCC clearances and Figures 6 and 8 show the WCX clearances RETURN SUPPLY ...

Page 5: ...161 354 508 20 0 903 29 35 9 16 635 25 0 635 25 0 515 6 20 3 36 79 57 125 36 79 57 125 40 88 40 88 25 56 25 56 36 78 38 84 61 134 56 124 41 89 27 60 43 94 26 56 36 80 58 127 37 81 58 128 42 92 41 91 26 58 26 57 158 348 162 357 162 358 169 372 508 20 0 635 25 0 508 20 0 635 25 0 508 20 0 635 25 0 635 25 0 515 6 20 3 508 20 0 635 25 0 508 20 0 635 25 0 ...

Page 6: ...Page 6 Installer s Guide Figure 3 WCC3042AthroughWCC3060A 1of2 RETURN SUPPLY ...

Page 7: ... 76 673 1 26 5 46 102 44 98 41 90 48 105 47 104 58 127 954 10 37 9 16 954 10 37 9 16 1055 70 41 9 16 1004 90 39 9 16 59 130 179 395 217 479 219 482 182 401 193 425 225 495 222 490 629 92 24 8 635 25 0 668 02 26 3 685 8 27 0 698 5 27 5 1004 90 39 9 16 193 425 668 02 26 3 698 5 27 5 698 5 27 5 698 5 27 5 635 25 0 635 25 0 635 25 0 635 25 0 629 92 24 8 629 92 24 8 WCC3042AthroughWCC3060A 2of2 Figure ...

Page 8: ...Page 8 Installer s Guide WCX3018AthroughWCX3036A 1of2 Figure 5 RETURN SUPPLY ...

Page 9: ... 0 635 25 0 515 6 20 3 36 79 57 125 36 79 57 125 40 88 40 88 25 56 25 56 36 78 38 84 61 134 56 124 41 89 27 60 43 94 26 56 36 80 58 127 37 81 58 128 42 92 41 91 26 58 26 57 158 348 162 357 162 358 169 372 508 20 0 635 25 0 508 20 0 635 25 0 508 20 0 635 25 0 635 25 0 515 6 20 3 508 20 0 635 25 0 508 20 0 635 25 0 WCX3018AthroughWCX3036A 2of2 Figure 6 ...

Page 10: ...Page 10 Installer s Guide WCX3042AthroughWCX3060A 1of2 Figure 7 RETURN SUPPLY ...

Page 11: ...6 76 673 1 26 5 46 102 44 98 41 90 48 105 47 104 58 127 954 10 37 9 16 954 10 37 9 16 1055 70 41 9 16 1004 90 39 9 16 59 130 179 395 217 479 219 482 182 401 193 425 225 495 222 490 629 92 24 8 635 25 0 668 02 26 3 685 8 27 0 698 5 27 5 1004 90 39 9 16 193 425 668 02 26 3 698 5 27 5 698 5 27 5 698 5 27 5 635 25 0 635 25 0 635 25 0 635 25 0 629 92 24 8 629 92 24 8 WCX3042AthroughWCX3060A 2of2 Figure...

Page 12: ...und it to ensure adequate serviceability maximum capacity and peak operating efficiency Note If practical install any internal accessories to the unit at the shop 2 Refer to the Installation section for instruction on convert ing the supply and return airflow covers to down airflow 3 The field assembled Roof Mounting Curb BAYCURB050A or BAYCURB051A or a field fabricated curb should be in place bef...

Page 13: ...allation sections to complete the installation Ductwork Filter and Electrical Wiring Rooftop Installation Curb Mounting ConvertHorizontalAirflowtoDownAirflow The factory ships the unit for horizontal airflow Perform this procedure to convert it to down airflow 1 Remove the three 3 sheet metal screws securing the supply air cover and the four 4 sheet metal screws securing the return air cover from ...

Page 14: ...Position the unit drip lip down over and in contact with the outside corner of the curb See Figure 12 insert A Continue to lower the unit on top of the curb with the unit drip lip astraddle and in contact with both the end and side rail of the curb The unit should now rest on top of the curb 3 Take the two 2 hold down brackets shipped with the curb and secure the unit to the curb See Figure 12 ins...

Page 15: ... 11 Lifting and Rigging Figure 12 Placing Unit on Curb Note Use the extreme mounting kit BAYEXMK003AA to additional holding strength to the unit to curb mounting EXISTING SHEET METAL SCREW HOLD DOWN BRACKET WITH CURB FLANGE OF CURB A ...

Page 16: ...Page 16 Installer s Guide Figure 14 Typical Rooftop Down Airflow Application with Frame Figure 13 Typical Rooftop Horizontal Airflow Application with Frame ...

Page 17: ... made with three inch canvas connectors to minimize noise and vibration transmission Elbows with turning vanes or splitters are recommended to mini mize air noise and resistance The first elbow in the ductwork leaving the unit should be no closer than two 2 feet from the unit to minimize noise and resistance To prevent leaking do not attach the ductwork to the bottom of the unit base Refer to the ...

Page 18: ...ical Wiring To connect power to the unit 1 Remove the Control access panel Pass the power wires through the Power Entry hole in the end of the unit See Figure 18 2 Connect the high voltage wires to the appropriate contactor terminals Single phase units use a two 2 pole contactor and three phase units use a three 3 pole contactor Connect the ground to the ground lug on the chassis See Figure 19 Be ...

Page 19: ...SSORY CONNECTIONS FIG 2 ECONOMIZER ACCESSORY CONNECTIONS GROUND WIRE Figure 20 WC Field Wiring Diagram NOTES 1 FUSED DISCONNECT SIZE POWER WIRING AND GROUNDING OF EQUIPMENT MUST COMPLY WITH CODES 2 BE SURE POWER SUPPLY AGREES WITH EQUIPMENT AND HEATER NAMEPLATE 3 LOW VOLTAGE WIRING TO BE 18 AWG MINIMUM CONDUCTOR 4 SEE HEATER NAMEPLATE FOR CURRENT RATING OF HEATER USED 5 SEE UNIT AND HEATER DIAGRAM...

Page 20: ...le 2 for recommended wire sizes and lengths for installing the unit thermostat The total resistance of these low voltage wires must not exceed one 1 ohm Any resistance in excess of 1 ohm may cause the control to malfunction because of the excessive voltage drop IMPORTANT Upon completion of wiring check all electrical connections includingfactorywiringwithintheunit andmake sure all connections are ...

Page 21: ...selected outdoor temperature If the outdoor temperature falls below the setting on the outdoor thermostat this additional heater stage will come on When the outdoor air temperature rises and the outdoor T stat setpoint is reached the system will revert back to first stage electric heating When the indoor ambient is satisfied TSH 2 contacts will open and the unit will revert back to the compressor ...

Page 22: ...d at the beginning of each heating season Visually inspect the unit to ensure that the airflow required for combustion and condenser coil is not obstructed from the unit Inspect the control panel wiring to verify that all electrical connections are tight and that the wire insulation is intact Does the unit run and operate as described in the section on Sequence of Operation in response to the room...

Page 23: ... IN IN CC1 RD LOAD BLOWER LOAD INDUCER YL CC1 RD PR IDM PR PARK IN IN CC1 RD Hi Speed Tap Setting Low Speed Tap Setting IGN PR P H L IDM BK HI LOW RD PR ORANGE YELLOW BLACK IGN PR P H L IDM BK HI LOW RD PR ORANGE YELLOW BLACK B B D D C C Figure 22 460 Volt Speed Taps Hi Speed Tap Setting Low Speed Tap Setting ...

Page 24: ...ed warranty does not cover failure of your Heat Pump if it is damaged while in your possession damage caused by unreasonable use of the Heat Pump and or damage from failure to properly maintain the Heat Pump as set forth in the Use and Care manual see Proper Maintenance section THE LIMITED WARRANTY AND LIABILITY SET FORTH HEREIN ARE IN LIEU OF ALL OTHER WARRANTIES AND LIABILITIES WHETHER IN CONTRA...

Page 25: ...nable use of the Heat Pump and or damage from failure to properly maintain the Heat Pump as set forth in the Use and Care manual see Proper Maintenance section THE LIMITED WARRANTY AND LIABILITY SET FORTH HEREIN ARE IN LIEU OF ALL OTHER WARRANTIES AND LIABILITIES WHETHER IN CONTRACT OR IN NEGLIGENCE EXPRESS OR IMPLIED IN LAW OR IN FACT INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FO...

Page 26: ...nder this warranty are limited to furnishing F O B Warrantor factory or warehouse replacement parts for Warrantor s products covered under this warranty Warrantor shall not be obligated to pay for the cost of lost refrigerant No liability shall attach to Warrantor until products have been paid for and then liability shall be limited solely to the purchase price of the equipment under warranty show...

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