Trane 2/4WCC30 Series Instrucciones de montaje

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, 1½- 5Ton, 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.

Page2

Installer’s Guide

IMPORTANT: Read this entire manual before beginning installation procedures.

IMPORTANT: RECONNECT ALL GROUNDING DEVICES.

ALLPARTSOFTHISPRODUCTCAPABLEOFCONDUCTING

ELECTRICAL CURRENT ARE GROUNDED. IF GROUNDING

WIRES, SCREWS, STRAPS, CLIPS NUTS OR WASHERS

USED TO COMPLETE A PATH TO GROUND ARE REMOVED

FORSERVICE,THEYMUSTBERETURNEDTOTHEIRORIGI-

NAL POSITION AND PROPERLY FASTENED.

Safety Considerations

Read this manual carefully before attempting to install, operate, or

perform maintenance on this unit. Installation and maintenance

should be performed by qualified service technicians only.

Note: "Warnings"and"Cautions"appearatappropriateplaces

in this manual. Your personal safety and the proper operation

of this air conditioning product require that you follow 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 SEVERE PERSONAL INJURY OR DEATH.

WARNING:Indicates a potentially hazardous situa-

tion which, if not avoided, could result in death or

serious injury.

CAUTION: Indicates a potentially hazardous situa-

tion which, if not avoided, may result in minor or

moderate injury. It may also be used to alert against

unsafe practices and where property-damage-only

accidents could occur.

NOTICE

Warning and Cautions appear at appropriate

locations throughout this guide. Read these

carefully.

NOTICE: Wear appropriate gloves,arm sleeve protectors,

and eye protection when servicing or maintaining this

equipment.

Page 3

Installer’s Guide

Read this manual carefully before attempting to install, operate,

or perform maintenance on this unit. Installation and maintenance

should be performed by qualified service technicians only. This

unit is listed by Underwriters Laboratory.

Model WC heat pump units are designed for outdoor mounting

with a vertical condenser discharge. They can be located either

at ground level or on a roof in accordance with local codes. Each

unit contains an operating charge of refrigerant as shipped.

Extreme mounting kits are available for slab (BAYEXMK002AA)

and curb (BAYEXMK003AA) mountings.

The indoor fan motor speed tap setting is provided in the

Maintenance section.

This guide is organized as follows:

Step 1-Inspect Shipment

Step 2-Determine Unit Clearances

Step 3-Review Location and Recommendation Information

Step 4-Unit Installation

Step 5-Unit Startup

Sequence of Operation

Maintenance

Introduction

Contents

Safety Considerations 2

Introduction 3

Step 1-Inspect Shipment 3

Step 2-Determine Unit Clearances 4

Step 3-Review Location and Recommendation

Information 12

Step 4-Unit Installation 13

Ground Level Installation 13

Rooftop Installation -- Curb Mounting 13

Covert Horizontal Airflow to Down Airflow 13

Install Full Perimeter Roof Mounting Curb 13

Lifting and Rigging 13

Placing the Unit on the Mounting Curb 14

Rooftop Installation -- Frame Mounting 14

Ductwork Installation 17

Attaching Downflow Ductwork to Roof Curb 17

Attaching Horizontal Ductwork to 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

Starting the Unit in Heating Mode 21

Heating Shutdown 21

Sequence of Operation 20

Demand Defrost Operation 21

Defrost Control 21

Final Installation Checklist 22

Maintenance 22

Owner Maintenance 22

Condenser Coil 22

Service Maintenance 22

Cooling Season 22

Heating Season 22

Indoor Fan Motor SpeedTap Setting 22

Warranty Information 24

Step1—Inspect Shipment

1. Check for damage after the unit is unloaded. Report

promptly to the carrier any damage found to the unit. Do not

drop the unit.

Important: To prevent damage to the sides and top of

the unit when hoisting, the use of “spreader bars” is

recommended.

2. Check the unit’s nameplate to determine if the unit is correct

for the intended application. The power supply must be

adequate for both the unit and all accessories.

3. Check to be sure the refrigerant charge has been retained

during shipment. Remove the Compressor access panel to

access the 1/4" flare pressure taps.

4. If this unit is being installed on a curb, verify that the correct

curb is provided with the unit.

•WC~3018 through WC~3036 use the small cabinet,

Model BAYCURB050A.

•WC~3042 through WC~3060 use the large cabinet,

Model BAYCURB051A.

5. If the unit is being hoisted, accessory kit BAYLIFT002AA is

recommended. It includes a kit of four (4) lifting lugs and

instructions.

Page4

Installer’s Guide

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

Installer’s Guide

Figure 2. WCC3018AthroughWCC3036A(2of2)

RETURN

SUPPLY

36 [79]

36 [78] 56 [124]

57 [125] 40 [88]

26 [56]41 [89]

25 [56] 158 [348]

158 [348]

158 [349]

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]

635 [25.0] 515.6 [20.3]

508 [20.0]

635 [25.0] 508 [20.0]

635 [25.0]

Page6

Installer’s Guide

Figure 3. WCC3042AthroughWCC3060A(1of2)

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Page 7

Installer’s Guide

RETURN

SUPPLY

42 [92]

47 [105]

61 [134]

60 [132]

33 [73]

79 [175]

52 [115]

76 [168]

78 [172]

49 [109]

62 [137]

63 [138]

66 [146] 31 [69]

46 [102]

80 [177]

69 [152]

35 [77]

36 [79]

41 [90]

31 [68]

30 [67]

46 [102]

36 [79]

36 [76]

673.1 [26.5]

46 [102]

44 [98]

41 [90]

48 [105]

47 [104]

58 [127]

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]

635 [25.0]

629.92 [24.8]

WCC3042AthroughWCC3060A(2of2)

Figure 4

Page8

Installer’s Guide

WCX3018AthroughWCX3036A(1of2)

Figure 5

RETURN SUPPLY

Page 9

Installer’s Guide

RETURN

SUPPLY

36 [79]

36 [78] 56 [124]

57 [125] 40 [88]

26 [56]41 [89]

25 [56] 158 [348]

158 [348]

158 [349]

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]

635 [25.0] 515.6 [20.3]

508 [20.0]

635 [25.0] 508 [20.0]

635 [25.0]

WCX3018AthroughWCX3036A(2of2)

Figure 6.

Page10

Installer’s Guide

WCX3042AthroughWCX3060A(1of2)

Figure 7.

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