Table of Contents
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Installation, Operation and Maintenance
1.5 Through 5 Ton
Heat Pump
TABLE OF CONTENTS
INTRODUCTION ..............................................................................1
NOTES TO INSTALLER ....................................................................1
CODES ............................................................................................1
RECOGNIZE SAFETY SYMBOLS, WORDS AND LABELS ................1
INSPECTION AND UNPACKING ......................................................1
Clearances ..........................................................................2
Support ..............................................................................2
Exposure ............................................................................2
Proximity to Evaporator....................................................2
ELECTRICAL CONNECTIONS ..........................................................2
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.
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Summary of Contents for Fedders CH18ABD1
- Page 1 Installation, Operation and Maintenance 1.5 Through 5 Ton Heat Pump TABLE OF CONTENTS 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...
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Page 2: Introduction
INTRODUCTION You have made a major investment in a fine piece of equipment. Keep your investment sound by reading these instructions before installing this unit. This will ensure that the full potential of this equipment is achieved. It will also be helpful in avoiding any needless service costs or operational problems. -
Page 3: Support
INSTALLATION Condensing Unit Location The condensing unit should be located outdoors as close as possible to the evaporator. Consider the following factors: Clearances The air inlet should be located at least 12" from a wall or other obstruction for unrestricted air flow. The air outlet should be located so as to direct discharged air away from the building. -
Page 4: Service Valve Connections Braze Joints
Electrical Connections (cont.) Connect control wiring 1. Route 24 volt control 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 voltage wires, use No. -
Page 5: Connect Refrigerant Piping
Adjust charge 0.72 oz per foot of variation from chart for 1/2" and 1 1/8" line set. Liquid Line Sizes HEAT PUMP Can only be MODEL NUMBER 20’ vertical separation CH18ABD1 without CH24ACD1 additional accessories. CH30ACD1 CH36ACD1 CH42ACD1 CH48ACD1 Suction Line Sizes... -
Page 6: Subcooling Charging
As the temperature drops, the heat output from the heat pump will be reduced. The auxiliary heat installed in the system will come on as needed °F... -
Page 7: Defrost Operation
After a time period of 60 to 90 minutes, the heat pump will go into the defrost mode. At this time, the outdoor coil may be heavily iced or no ice may be visible, depending on the outdoor humidity. -
Page 8: Limited Warranty
LIMITED WARRANTY Limited Five Year Warranty: Fedders will provide a replacement part or component that proves to be defective in material or workmanship. Warranty Limitations: • Limited Warranty does not include allowances for labor or travel expense connected with the installation of...
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