Carrier 25HCR installation instructions Installation Instructions, Table of Contents

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25HCR

COMFORTt SERIES R---22 HEAT PUMPS

SIZES 18 TO 60

1---1/2 TO 5 NOMINAL TONS

Installation Instructions

TABLE OF CONTENTS

PAGE

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . 2

INSTALLATION RECOMMENDATIONS . . . . . . . . . . . . . 2

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 10

Step 1 - Check Equipment & Jobsite . . . . . . . . . . . . . . . 3

Step 2 - Install on Solid Pad . . . . . . . . . . . . . . . . . . . . . . 3

Step 3 - Clearance Requirements . . . . . . . . . . . . . . . . . . 3

Step 4 - Operating Ambient . . . . . . . . . . . . . . . . . . . . . . 3

Step 5 - Install TXV . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 4

Step 6 - Check Defrost Thermostat . . . . . . . . . . . . . . . . . 4

Step 7 - Make Piping Connections . . . . . . . . . . . . . . 4 - 6

Step 8 - Make Electrical Connections . . . . . . . . . . . . 6 - 7

Step 9 - Compressor Crankcase Heater . . . . . . . . . . . . . 7

Step 10 - Install Electrical Accessories . . . . . . . . . . . . . . 7

Step 11 - Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 9

Step 12 - Check Charge . . . . . . . . . . . . . . . . . . . . . . . . . 10

Step 13 - Final Checks . . . . . . . . . . . . . . . . . . . . . . . . . . 10

CARE AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . 10

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Fig. 1 ---25HCR

NOTE: Read the entire instruction manual before starting the installation.

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Contents Table of Contents Installation InstructionsInstallation Recommendations Safety ConsiderationsElectrical Shock Hazard Unit Operation Hazard InstallationEquipment Damage Hazard Personal Injury and Environmental Hazard Check Defrost ThermostatUnit Damage Hazard Outdoor Unit Connected to Factory-Approved Indoor Unit Accessory UsageRefrigerant Tubing and Sweat Connections Route Ground and Power Wires Install Liquid Line Filter Drier IndoorConnect Ground and Power Wires Personal Injury Hazard Unit Operation and Safety HazardEnvironmental Hazard OF2 HK32EA003 Cooling Sequence of OperationHeating Quiet ShiftCare and Maintenance