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428 01 5302 00

    9/12/13

INSTALLATION INSTRUCTIONS

R

410A Split System Heat Pump

Product Family: R4H3, R4H4, WCH3**4, WCH**4

These instructions must be read and understood completely before attempting installation.

DANGER, WARNING, CAUTION, and

NOTE

The signal words

 DANGER, WARNING,

CAUTION, 

and

 NOTE

 are used to identify levels of

hazard seriousness. The signal word 

DANGER

 is

only used on product labels to signify an immediate

hazard. The signal words

 WARNING,

 

CAUTION,

and

 NOTE

 will be used on product labels and

throughout this manual and other manuals that may

apply to the product.

DANGER

 

 Immediate hazards which 

will

 result in

severe personal injury or death.

WARNING 

 Hazards or unsafe practices which

could

 result in severe personal injury or death.

CAUTION 

 Hazards or unsafe practices which

may

 result in minor personal injury or product or

property damage.

NOTE 

 Used to highlight suggestions which 

will

 result in enhanced installation, reliability, or

operation.

Signal Words in Manuals

The signal word

 WARNING 

is used throughout this

manual in the following manner:

The signal word 

CAUTION 

is used throughout this

manual in the following manner:

Signal Words on Product Labeling

Signal words are used in combination with colors

and/or pictures on product labels.

WARNING

Safety Labeling and Signal Words

!

CAUTION

WARNING

!

TABLE OF CONTENTS

Inspect New Unit

2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Safety Considerations

2

. . . . . . . . . . . . . . . . . . . . . . . . . . .

Location

2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Clearances

 3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Unit Support

4

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Refrigeration System

 9

. . . . . . . . . . . . . . . . . . . . . . . .

Electrical Wiring

 10

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Defrost System

11 

 12

. . . . . . . . . . . . . . . . . . . . . . . . . . .

Start

up Procedure

13

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Refrigerant Charge

13 

 17

. . . . . . . . . . . . . . . . . . . . . . . . .

Sequence of Operation

17

. . . . . . . . . . . . . . . . . . . . . . . . .

Maintenance

17

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

R

410A Quick Reference Guide

18

. . . . . . . . . . . . . . . . .

!

WARNING

DEATH, PERSONAL INJURY, AND/OR PROPERTY

DAMAGE HAZARD
Failure to carefully read and follow this warning

could result in equipment malfunction, property

damage, personal  injury and/or death.
Installation  or repairs made by unqualified per-

sons could result in equipment malfunction, prop-

erty damage, personal  injury and/or death.
The information contained in this manual is in-

tended for use by a qualified service technician fa-

miliar with safety procedures and equipped with

the proper  tools and test  instruments.
Installation must conform with local building

codes and with the National Electrical Code

NFPA70 current edition or Canadian Electrical

Code Part 1 CSA C.22.1.

Summary of Contents for R4H3

Page 1: ...e following manner The signal word CAUTION is used throughout this manual in the following manner Signal Words on Product Labeling Signal words are used in combination with colors and or pictures on product labels WARNING Safety Labeling and Signal Words CAUTION WARNING TABLE OF CONTENTS Inspect New Unit 2 Safety Considerations 2 Location 2 Clearances 2 3 Unit Support 4 Refrigeration System 5 9 El...

Page 2: ...lations concerning zoning noise platforms and other issues Locate unit away from fresh air intakes vents or bedroom windows Noise may carry into the openings and disturb people inside Locate unit in a well drained area or support unit high enough so that water runoff will not enter the unit Locate unit away from areas where heat lint or exhaust fumes will be discharged onto unit as from dryer vent...

Page 3: ...l 6 152mm 24 610mm Service Wall Wall Wall 6 152mm 6 152mm Post Wall Wall 18 457mm 18 457mm 18 457mm 18 152mm 6 152mm 6 152mm 6 152mm 18 457mm 18 457mm 18 457mm 18 457mm 24 610mm Service 24 610mm Service 24 610mm Service 24 610mm Service 24 610mm Service 24 610mm Service 4 102mm 4 102mm wide fence 18 457mm 18 457mm ...

Page 4: ...latform for the unit must be level If installation is on a flat roof locate unit minimum 6 inches 152mm above roof level Place the unit over one or more load bearing walls If there are several units mount them on platforms that are self supporting and span several load bearing walls These suggestions are to minimize noise and vibration transmission through the structure If the structure is a home ...

Page 5: ...ng refrigeration tubing Tubing can kink easily and if this occurs the entire length of tubing must be replaced WARNING PERSONAL INJURY HAZARD Failure to relieve system pressure could result in personal injury and or death Relieve pressure and recover all refrigerant before servicing existing equipment and before final unit disposal Use all service ports and open all flow control devices including ...

Page 6: ...as velocity do not upsize vertical suction risers E LIQUID LINE FILTER DRIER NOTE It is recommended that an appropriate filter drier be installed in the liquid line Leave the plugs in the tube ends until the filter drier is installed The optimal location for the filter drier is close to the indoor coil Heat pump filter driers are bi flow type Either end can be pointed towards indoor coil Refer to ...

Page 7: ... CAUTION PRODUCT DAMAGE HAZARD Failure to follow this caution may result in product damage Braze with Sil Fos or Phos copper alloy on cop per to copper joints and wrap a wet cloth around rear of fitting to prevent damage to TXV H EVACUATING LINE SET AND INDOOR COIL The unit is shipped with a factory refrigerant charge The liquid line and suction line service valves have been closed after final tes...

Page 8: ...XV restricting refrigerant flow and affecting operation of the system Remove Suction service valve cap and insert a hex wrench into the valve stem Hold the valve body steady with an end wrench and back out the stem by turning the hex wrench counterclockwise Turn the stem until it just contacts the rolled lip of the valve body After the refrigerant charge has bled into the system open the Liquid se...

Page 9: ... to Figure 9 Route thermostat wiring through rubber grommet in bottom of Control Box Low voltage lead wires are provided in the control box for connection to thermostat wires use wire nuts Refer to Wiring Diagram on unit and Figure 10 for low voltage wiring examples NOTE Use No 18 AWG American Wire Gage color coded insulated 35 C minimum wire If thermostat is located more than 100 feet 30 5 m from...

Page 10: ...TALLING OUTDOOR THERMOSTATS SYSTEMS WITH ONE OUTDOOR THERMOSTAT G R W 3 C O R G R W 3 C E C W 2 Y W 2 O R C W 2 Y W 2 C L G Y E O R SYSTEMS WITHOUT OUTDOOR THERMOSTATS C G R W 2 C Y O R W 2 SUBBASE THERMOSTAT CONNECTION SPLICE INDOOR CONNECTION SPLICE OUTDOOR BOARD DEFROST SUBBASE THERMOSTAT CONNECTION SPLICE INDOOR CONNECTION SPLICE OUTDOOR BOARD DEFROST SUBBASE THERMOSTAT CONNECTION SPLICE INDOO...

Page 11: ...f the defrost thermostat itself will not be observed Skip to 3 2 Use a volt meter to confirm there is no voltage across the DFT leads 24 volts across the SFT terminals indicates an OPEN defrost thermostat Zero volts across the DFT terminals indicates a CLOSED defrost thermostat With this method the operation of the defrost thermostat can be observed during the test If the defrost thermostat is con...

Page 12: ... Defrost Control Board R8 OF1 K1 O1 R21 C2 R6 H9C1 C US R14 R13 D13 R7 C4 C10 JW2 JW1 D3 C16 C7 R28 D6 JW3 C13 R4 R1 R2 R3 R11 R5 R26 D1 D2 D10 A29 R9 D4 C19 C9 C1 OF2 CEBD430524 01A 5501A P2 1 Y T1 C C O DFT SPEEDUP P1 1 J1 1 P3 1 J2 30 60 90 W1 R20 1 HK32EA001 C17 U1 1 U3 O R W2 Y C ...

Page 13: ...th is beyond 80 feet 24 4m or greater than 20 feet 6 1m vertical separation See Long Line Guideline for special charging requirements A UNITS WITH COOLING MODE TXV Units installed with cooling mode TXV require charging by the subcooling method 1 Operate unit a minimum of 15 minutes before checking charge NOTE If outdoor unit has a 2 speed fan motor motor will operate in low speed when outdoor ambi...

Page 14: ...13 16 17 19 21 80 5 8 12 15 18 21 25 28 31 35 27 3 4 7 8 10 12 14 16 17 19 85 8 11 15 19 22 26 30 33 29 4 6 8 11 12 14 17 18 90 5 9 13 16 20 24 27 31 32 3 5 7 9 11 13 15 17 95 6 10 14 18 22 25 29 35 3 6 8 10 12 14 16 100 8 12 15 20 23 27 38 4 7 8 11 13 15 105 5 9 13 17 22 26 41 3 5 7 9 12 14 110 6 11 15 20 25 43 3 6 8 11 14 115 8 14 18 23 46 4 8 10 13 Optimum performance point 82 F 28 C outdoor am...

Page 15: ...0 84 29 82 28 80 27 308 92 33 90 32 88 31 86 30 84 29 82 28 317 94 34 92 33 90 32 88 31 86 30 84 29 326 96 36 94 34 92 33 90 32 88 31 86 30 335 98 37 96 36 94 34 92 33 90 32 88 31 345 100 38 98 37 96 36 94 34 92 33 90 32 364 104 40 102 39 100 38 98 37 96 36 94 34 374 106 41 104 40 102 39 100 38 98 37 96 36 384 108 42 106 41 104 40 102 39 100 38 98 37 395 110 43 108 42 106 41 104 40 102 39 100 38 4...

Page 16: ... ED 4X30 EA 4X30 14 17 A 3 EN 4X30 3 3 EHD4X30A 3 3 FEM4 P X 30 A TXV 3 FSA4X30 A 3 FEA4X30 A 3 FXM4X30 A 5 5 FS M U 4P30 A TXV 5 5 FVM FCM 4X36 5 3 ED 4X36 EA 4X36 14 17 21 A 5 3 EN 4X36 3 EHD4X36A 5 3 FEM4P36 A TXV FSA4X36 A 5 3 FEA4X36 A 5 3 F E X M4X36 A 5 5 FS M U 4P36 A TXV 5 3 ED 4X42 EA 4X42 21 24 A 3 EN 4X42 21 3 END4X42 17 3 EHD4X42A 5 FEM4 P X 42 A TXV 5 FXM4X42 A 5 FS M U 4P42 A TXV 5 ...

Page 17: ...st bank supplemental electric heat and providing electrical potential to the second heater sequencer if used If outdoor temperature falls below the setting of the outdoor thermostat field installed option contacts close to complete the circuit and bring on the second bank of supplemental electric heat When the thermostat is satisfied its contacts open de energizing contactor blower relay and seque...

Page 18: ...nts is only compatible with POE oils Vacuum pumps will not remove moisture from oil Do not use liquid line filter driers with rated working pressures less than 600 psig Do not install a suction line filter drier in liquid line POE oils absorb moisture rapidly Do not expose oil to atmosphere POE oils may cause damage to certain plastics and roofing materials Wrap all filter driers and service valve...

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