Bryant R-22 - Manual

NOTE: Read the entire instruction manual before starting the
installation.
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TABLE OF CONTENTS
SAFETY CONSIDERATIONS .....................................................1
INTRODUCTION ..........................................................................2
INSTALLATION GUIDELINE ....................................................2
Residential New Construction ..................................................2
Add-On Replacement (Retrofit) ...............................................2
Seacoast (For Air Conditioners Only) .....................................2
ACCESSORY DESCRIPTIONS ...................................................2
Compressor Crankcase Heater..................................................2
Evaporator Freeze Thermostat..................................................2
Winter Start Control .................................................................2
Compressor Start Assist—PTC ................................................2
Compressor Start Assist Capacitor/Relay ................................2
Low-Ambient Controller ..........................................................2
MotorMaster™ Control ............................................................2
Low-Ambient Pressure Switch.................................................2
Wind Baffle...............................................................................3
Coastal Filter.............................................................................3
Support Feet ..............................................................................3
Liquid-Line Solenoid Valve .....................................................3
Thermostatic-Expansion Valve.................................................3
Isolation Relay ..........................................................................3
LOW-AMBIENT GUIDELINE.....................................................3
LONG-LINE GUIDELINE............................................................3
Approved Systems ....................................................................3
Interconnecting Tubing Sizing .................................................3
Metering Device Sizing ............................................................6
Liquid-Line Solenoid And Tubing Configuration ...................7
Charging Information................................................................8
2–Speed Applications ...............................................................8
UNIT IDENTIFICATION .............................................................8
Product Number Stamped on Unit-Rating Plate......................8
Serial Number Identification ....................................................9
CABINET.....................................................................................10
Remove Top Cover—Before 1/1/92 ......................................10
Remove Fan-Motor Assembly—Before 1/1/92 .....................10
Information Plate—Reliant Products......................................10
Control-Box Cover—Cube Products......................................10
Remove Top Cover— After 1/1/92 .......................................10
Remove Fan-Motor Assembly—After 1/1/92........................11
ELECTRICAL..............................................................................12
Aluminum Wire ......................................................................12
Contactors................................................................................13
Capacitors................................................................................14
Cycle Protector........................................................................15
Crankcase Heater ....................................................................16
Time-Delay Relay...................................................................16
Pressure Switches....................................................................17
Defrost Thermostats................................................................18
Defrost-Control Board ............................................................18
Fan Motors ..............................................................................21
Service Alarm Control Board.................................................21
Outdoor Thermostat(s)............................................................22
Compressor Plug.....................................................................24
Low-Voltage Terminals ..........................................................25
RECIPROCATING COMPRESSOR ..........................................25
Mechanical Failures ................................................................25
Electrical Failures ...................................................................26
System Cleanup After Burnout ..............................................27
Compressor Removal And Replacement ...............................27
COPELAND SCROLL COMPRESSOR ....................................28
Features ...................................................................................28
Troubleshooting ......................................................................28
Discharge Thermostat .............................................................28
Discharge Solenoid Valve ......................................................28
MILLENNIUM SCROLL COMPRESSOR ................................29
Features ...................................................................................29
Compressor Protection............................................................29
Troubleshooting ......................................................................29
Scroll Compressor, 3–Phase Monitor.....................................29
TWO-SPEED SYSTEM ..............................................................29
Cautions and Warnings...........................................................29
System Functions ....................................................................29
Factory Defaults......................................................................33
Major Components..................................................................33
LED Function/Malfunction Lights .........................................34
Troubleshooting ......................................................................34
REFRIGERATION SYSTEM .....................................................35
Refrigeration Cycle.................................................................35
Leak Detection ........................................................................35
Brazing ....................................................................................37
Service Valves ........................................................................38
Check-Flo-Rater™ (Bypass-Type) Heat Pumps Only...........39
Reversing Valve......................................................................39
Thermostatic-Expansion Valves (TXV) .................................40
Thermostatic-Expansion Valve (Bi-Flow TXV)....................41
Coil Removal ..........................................................................41
Liquid-Line Strainer (Heat Pumps Only) ..............................41
Accumulator ............................................................................43
Contaminant Removal ............................................................43
System Charging.....................................................................43
Checking Charge.....................................................................43
CARE AND MAINTENANCE...................................................45
SAFETY CONSIDERATIONS
Service and repair of these units should be attempted only by
trained service technicians familiar with Bryant standard service
instructions and training manual.
All equipment should be installed in accordance with accepted
practices and unit Installation Instructions, and in compliance with
all national and local codes.
Power should be turned off when servicing or repairing electrical
components. Extreme caution should be observed when trouble-
shooting electrical components with power on. Observe all warn-
ing notices posted on equipment.
Application Guide and
Service Manual
AIR CONDITIONERS AND HEAT PUMPS
USING R-22 REFRIGERANT
Cancels: AP01-3, SM01,02-4 SM01,02-5
10-00
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