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Mnstallation

PH1Z024-060

Packaged Heat

Pump Units

Mnstructions

7-03

NOTE: Read the entire instrt/ction manual before starting the installation.

TABLE OF CONTENTS

SAFETY ( ONSIDERATIONS 2

INTRODUCTION 2

RECEIVrNG AND INSTALLATION .......................................................................................................................................................................... 6

Check Equipment ..................................................................................................................................................................................................... 6

IDENTIFY UNIT ................................................................................................. 6

INSPECT SHIPMENT ........................................................................................................................................................................................ 6

Provide Unit Support ................................................................................................................................................................................................ 6

SLAB MOL_T ................................................................................................................................................................................................... 6

GROL ND MOUNT ............................................................................................... 6

Provide ( learances ................................................................................................. 6

Place Unit ................................................................................................................................................................................................................. 6

Select and Install Ductwork ..................................................................................................................................................................................... 6

INSTALL FLANGES FOR DUCTWORK CONNECTIONS (PH1Z060 ONLY) .......................................................................................... 6

CONVERTING HORIZONTAL DISCHARGE UNITS TO DOVv_'FLOW (VERTICAL) DISCHARGE ........................ 7

Provide fbr (ondensate Disposal ..................................................................................... 7

Install Electrical Connections ......................................................................................... 9

HIGH-VOLTAGE CONNECTIONS .................................................................................... 9

ROUTING POWER LEADS INT() UNIT ................................................................................. 9

CONNECTING GROUND LEAD TO E.KIT GROUND ............................................................ l0

ROUTING CONTROL POWER WIRES .............................................................................. 10

ACCESSORY ELECTRIC HEAT WIRING ............................................................................ l0

SPE(IAL PRO(EDURES FOR 208-V OPERATION ................................................................... I 1

PRE-START-L P .................................................................................................... 11

START-UP .............................................................................................................. 12

(heck fbr Refi'igerant Leaks .......................................................................................... 12

LOCATE AND REPAIR REFRIGERANT LEAKS AND (HARGE THE UNIT AS FOLLOWS: ............................. 12

Start=L p Cooling Section and Make Adjustments ........................................................................ 12

CHECKING (OOLING CONTROL OPERATION .................................................................... 12

COMPRESSOR ROTATION ........................................................................................ 13

Refrigerant ( harge .................................................................................................. I3

NO CHARGE .................................................................................................................................................................................................... 13

LOW CHARGE COOLING ............................................................................................................................................................................. 13

T() USE THE COOLING CHARGING CHART ........................................................................................................................................... 13

HEATING MODE CHARGE .......................................................................................................................................................................... 13

Indoor Airflow and Airflow Adjustments ............................................................................................................................................................. 13

FOR 208/230-V ................................................................................................................................................................................................. 14

FOR 460-V MOTORS 14

Lnit Contlols 15

HIGH-PRESSURE RELIEF VALVE .............................................................................................................................................................. 15

LOSS OF CHARGE SWIT(H 15

COMPRESSOR OVERLOAD 15

Sequence of Operation 15

FAN OPERATION 15

(00LING 15

HEAT PUMP HEATING 15

DEFROST 17

ELECTRIC RESISTANCE HEATING 17