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428 01 5103 02  

 May 2010

INSTALLATION INSTRUCTIONS

R

−

410A Split System Heat Pump

N4H3, C4H3, H4H3, T4H3,

NXH5, CXH5, HXH5, TXH5

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

2 

−

 3

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

Unit Support

4

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

Refrigeration System

5 

−

 10

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

Electrical Wiring

10 

−

 11

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

Defrost System

12 

−

 13

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

Start

−

up Procedure

14

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

Refrigerant Charge

14 

−

 17

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

Sequence of Operation

18

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

Troubleshooting

18

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

Maintenance

18

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

Comfort Alert

t

 Diagnostics Codes

19

. . . . . . . . . . . . . .

R

−

410A Quick Reference Guide

20

. . . . . . . . . . . . . . . . .

!

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.

Содержание C4H3

Страница 1: ...al 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 10 Electrical Wiring 10 11 Defr...

Страница 2: ...akes 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 vents Locate unit away from recessed or confined areas where recirculation of discharge air may oc...

Страница 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 ...

Страница 4: ...ise levels are required Supporting structure or platform 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 ...

Страница 5: ...cooling operation Heat pumps also use an outdoor piston for heating operation refer to section F Check piston size shipped with indoor unit to see if it matches required indoor piston size shown on outdoor unit rating plate If it does not match replace indoor piston with cooling piston according to size marked on outdoor unit rating plate Some outdoor models include a cooling piston in the accesso...

Страница 6: ...ine in the field use dehydrated or dry sealed deoxidized copper refrigeration tubing Do not use copper water pipe Do not remove rubber plugs or caps from copper tubing until connections are ready to be made Be extra careful when bending 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 syste...

Страница 7: ...DOOR WALL INDOOR WALL LIQUID TUBE SUCTION TUBE INSULATION CAULK HANGER STRAP AROUND SUCTION TUBE ONLY JOIST 1 25mm MIN THROUGH THE WALL SUSPENSION CAUTION UNIT OPERATION HAZARD Failure to follow this caution may result in improp er product operation Do not bury more than 36 1m of line set under ground Refrigerant may migrate to cooler buried section during extended periods of unit shut down causin...

Страница 8: ...s and suction tube stub is copper Figure 7 Liquid Service Valve with Heating Piston and Adapter Tube PISTON BODY LIQUID SERVICE VALVE PISTON PLASTIC WASHER ADAPTER TUBE BRASS NUT Vapor Service Valve VALVE CORE SERVICE VALVE G BRAZING CONNECTIONS NOTE For Liquid Service Valve Braze lineset to adapter tube BEFORE bolting adapter to valve This helps prevent overheating and damage to plastic washer or...

Страница 9: ...s free of air and water Watch the vacuum gauge as the system is pulling down The response of the gauge is an indicator of the condition of the system refer to Figure 8 With no leaks in the system allow the vacuum pump to run for 30 minutes minimum at the deep vacuum level Figure 8 Deep Vacuum Gauge Response and System Conditions 500 MINUTES 0 1 2 4 6 1000 1500 LEAK IN SYSTEM VACUUM TIGHT TOO WET T...

Страница 10: ... the main remote electrical disconnect device There may be more than one disconnect device Supply voltage must be 208 230 volts 197 volt minimum to 253 volts maximum 60 Hz single phase Outdoor units are approved for use with copper conductors only Do not use aluminum wire Refer to unit rating plate for minimum circuit ampacity and circuit protection requirements Grounding Permanently ground unit i...

Страница 11: ...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...

Страница 12: ...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...

Страница 13: ... 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 ...

Страница 14: ...Adjust charge by adding or removing 0 6 oz ft 17 g mm of 3 8 liquid line above or below 15 feet 4 6 m respectively For standard refrigerant line lengths 80 feet 24 4m or less allow system to operate in cooling mode at least 15 minutes If conditions are favorable check system charge by super heat method for fixed metering device and subcooling method for TXV If any adjustment is necessary adjust ch...

Страница 15: ...Measure suction pressure by attaching an accurate gage to suction valve service port 3 Measure suction temperature by attaching an accurate thermistor type or electronic thermometer to suction line at service valve 4 Measure outdoor air dry bulb temperature with thermometer 5 Measure indoor air entering indoor coil wet bulb temperature with a sling psychrometer 6 Refer to Figure 14 Find outdoor te...

Страница 16: ...14 16 18 20 20 20 75 3 11 13 16 18 18 19 82 6 8 12 15 16 17 85 4 7 11 14 15 16 90 4 8 12 14 15 95 6 10 12 14 100 4 8 11 12 105 3 6 9 11 110 5 7 10 115 3 6 8 Optimum performance point 82 F 28 C outdoor ambient and 80 F 27 C dry bulb 67 F 19 C wet bulb indoor conditions DOE B Test Conditions Where a dash appears do not attempt to charge system under these conditions or refrigerant slugging may occur...

Страница 17: ...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...

Страница 18: ...TROUBLESHOOTING Some models are factory equipped with the Comfort Alertt Diagnostics device in the control box refer to Figure 17 Comfort Alert provides around the clock monitoring for common electrical problems compressor defects and broad system faults If trouble is detected an alert code is displayed with a flashing LED indicator Alert codes are listed in Figure 18 The device is factory wired a...

Страница 19: ...ma tion 4 If low pressure switch present go to Flash Code 1 informa tion Yellow ALERT Flash Code 4 Locked Rotor 1 Run capacitor has failed 2 Low line voltage contact utility if voltage at disconnect is low 3 Excessive liquid refrigerant in compressor 4 Compressor bearings are seized Yellow ALERT Flash Code 5 Open Circuit 1 Outdoor unit power disconnect is open 2 Compressor circuit breaker or fuse ...

Страница 20: ...rigerants 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...

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