Fedders CH18ABD1 Installation, Operation And Maintenance Manual Download Page 1

Installation, Operation and Maintenance

1.5 Through 5 Ton 
Heat Pump

INTRODUCTION ..............................................................................1

NOTES TO INSTALLER ....................................................................1

CODES ............................................................................................1

RECOGNIZE SAFETY SYMBOLS, WORDS AND LABELS ................1

INSPECTION AND UNPACKING ......................................................1

INSTALLATION

Clearances ..........................................................................2
Support ..............................................................................2
Exposure ............................................................................2
Proximity to Evaporator....................................................2

ELECTRICAL CONNECTIONS ..........................................................2

SERVICE VALVE CONNECTIONS

Braze Joints ..............................................................................3
Evacuation ................................................................................3
Opening the Service Valve (Step  Valve) ................................3
Opening the Service Valve (Straight Valve) ............................3

CONNECT REFRIGERANT PIPING ..................................................4

Precautions ................................................................................4
Liquid Line Sizes........................................................................4
Suction Line Sizes......................................................................4

SUBCOOLING CHARGING  ............................................................5

FINAL CHECKS FOR INSTALLER......................................................5

COOLING OPERATION  ..................................................................5

HEATING OPERATION  ..................................................................5

DEFROST OPERATION ....................................................................6

MAINTENANCE INSTRUCTIONS ....................................................6

CONDENSING UNIT NOMENCLATURE ..........................................6

LIMITED WARRANTY ....................................................................7

NOTE: 

THESE INSTRUCTIONS ARE INTENDED AS AN AID TO QUALIFIED
SERVICE PERSONNEL FOR PROPER INSTALLATION, ADJUSTMENT
AND OPERATION OF THIS EQUIPMENT. READ THE ENTIRE
INSTRUCTION MANUAL THOROUGHLY BEFORE ATTEMPTING
INSTALLATION OR OPERATION.

TABLE OF CONTENTS

 

Summary of Contents for CH18ABD1

Page 1: ...3 Opening the Service Valve Straight Valve 3 CONNECT REFRIGERANT PIPING 4 Precautions 4 Liquid Line Sizes 4 Suction Line Sizes 4 SUBCOOLING CHARGING 5 FINAL CHECKS FOR INSTALLER 5 COOLING OPERATION 5...

Page 2: ...SHOCK INJURY DAMAGE TO EQUIPMENT OR DEATH CONSULT A QUALIFIED INSTALLER FOR INFORMATION OR ASSISTANCE Installation and service personnel are required by some locales to be licensed Persons not qualifi...

Page 3: ...discharged on the unit as from dryer or furnace vent Proximity to Evaporator Locating the condenser as close as possible to the evaporator will increase the system capacities by reducing the line set...

Page 4: ...l wires through control wiring grommet and connect leads to control wiring 2 Use No 18 AWG color coded insulated wire If thermostat is located more than 100 ft from unit as measured along the control...

Page 5: ...INANTS PURGING WITH DRY NITROGEN AND A DEEP VACUUM IS NECESSARY ON ALL SWEAT TYPE MODELS AND ON THE UNCHARGED PORTIONS OF ALL MODELS NOT INCORPORATING PRECHARGED LINES IT IS DESIRABLE TO PULL A VACUUM...

Page 6: ...emperature and not changing the temperature during the day can be more economical than varying the thermostat setting If it is intended to set the temperature back at night consider that when the temp...

Page 7: ...outdoor coil warms you may notice steam coming off the coil When the coil reaches a predetermined temperature usually within 7 minutes the defrost cycle will end You may hear a hiss as the unit switc...

Page 8: ...f the equipment nor for refrigerant used For warranty purposes the purchase date is established by a proof of purchase If a proof of purchase can not be verified then warranty period will be measured...

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