Carrier 30HL050, 060 specifications Contents, Installation, Start-Up and Service Instructions

30HK040-060 30HL050,060 30HW018-040

Reciprocating Liquid Chillers 50/60 Hz

Installation, Start-Up and

Service Instructions

CONTENTS

Page

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

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

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Step 1 Ð Inspect Shipment . . . . . . . . . . . . . . . . . . . . . 3

Step 2 Ð Rig the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . 3

·30HK,HL UNITS

·30HW UNITS

Step 3 Ð Place the Unit . . . . . . . . . . . . . . . . . . . . . . . . 3

·30HK,HL UNITS

·30HW UNITS

Step 4 Ð Check Compressor Mounting and Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Step 5 Ð Make Piping Connections . . . . . . . . . . . . . 13

·30HK,HWC,HWS CONDENSER DESCRIPTION

·30HL,HWA SYSTEM CONDENSER

·30HWB CONDENSER DESCRIPTION

·30HK,HWC,HWS CONDENSER(S)

·30HWB CONDENSER

·30HK,HWB,HWC,HWS UNITS

·COOLER DESCRIPTION

·COOLER PIPING

Step 6 Ð Make Electrical Connections . . . . . . . . . . . 19

·30HK,HL UNITS

·30HW UNITS

·ALL UNITS

PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-27

Initial Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Check Refrigerant Charge . . . . . . . . . . . . . . . . . . . . . 26

·LIQUID CHARGING METHOD

Check Oil Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

·TO ADD OIL

·TO REMOVE OIL

START-UP AND OPERATION . . . . . . . . . . . . . . . . . . 27-30

Operation Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Operating Limitations . . . . . . . . . . . . . . . . . . . . . . . . . 27

·HIGH COOLER LEAVING CHILLED WATER (FLUID) TEMPERATURES (LCWT)

·LOW COOLER LCWT

·MAIN POWER SUPPLY

Check Refrigerant Feed Components . . . . . . . . . . . . 27

·THERMOSTATIC EXPANSION VALVE (TXV)

·FILTER DRIER

·MOISTURE-LIQUID INDICATOR

·LIQUID LINE SERVICE VALVE

·DISCHARGE LINE CHECK VALVE

·HOT GAS BYPASS VALVE

·LIQUID LINE SOLENOID VALVE (30HL ONLY)

·PRESSURE RELIEF DEVICES

Compressor and Unit Protective Devices . . . . . . . . . 28

·CIRCUIT BREAKER

·COMPRESSOR INTERNAL THERMAL PROTECTION

·CRANKCASE HEATER

·OIL PRESSURE SAFETY SWITCH (OPS)

Check Unit Safeties . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

·CONTROL MODULE

·HIGH-PRESSURE SWITCH

·LOW-PRESSURE SWITCH

·CHILLED FLUID TEMPERATURE CONTROLLER

·FREEZE-UP PROTECTION

·LOSS-OF-COOLER-FLOW PROTECTION

·COMPRESSOR GROUND FAULT SENSOR

UNIT OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-32

Capacity Control and Operating Sequence . . . . . . . 30

·30HK,HL UNITS

·30HW UNITS

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-35

Compressor Replacement . . . . . . . . . . . . . . . . . . . . . . 32

Circuit Breaker(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Brazed-Plate Cooler and Condenser

Heat Exchanger Replacement . . . . . . . . . . . . . . . . . 32

Brazed-Plate Cooler and Condenser

Heat Exchanger Cleaning . . . . . . . . . . . . . . . . . . . . . 32

Shell-and-Tube Condenser Cleaning . . . . . . . . . . . . . 32

Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

·THERMISTOR REPLACEMENT, 30HK,HL UNITS

·THERMISTOR REPLACEMENT, 30HW UNITS

SERVICING COOLER (30HK,HL ONLY) . . . . . . . . . 36,37

Tube Plugging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

·RETUBING

Tightening Cooler Head Bolts . . . . . . . . . . . . . . . . . . 36

·GASKET PREPARATION

·BOLT TORQUES

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 37-39

Complete Unit Stoppage and Restart . . . . . . . . . . . . 37

·GENERAL POWER FAILURE

·UNIT ON-OFF SWITCH IS OPEN

·CONTACTS OF ANY AUXILIARY INTERLOCKS ARE OPEN

·CHILLED FLUID PROOF-OF-FLOW SWITCH(ES) OPEN

·OPEN LOW-PRESSURE SWITCH

·TEMPERATURE CONTROLLER SHUTS UNIT DOWN ON OUT-OF-RANGE

·OPEN HIGH-PRESSURE SWITCH(ES)

·OPEN COMPRESSOR INTERNAL THERMAL PROTECTION

·OPEN OIL PRESSURE SWITCH

·OPEN CONTACTS ON COMPRESSOR GROUND- CURRENT SENSOR(S) (Accessory)

·OPEN 24-V CONTROL CIRCUIT BREAKER(S)

·COOLING LOAD SATISFIED

·THERMISTOR FAILURE

START-UP CHECKLIST FOR

CHILLER SYSTEMS . . . . . . . . . . . . . . . . . . . CL-1 to CL-4

Manufacturer reserves the right to discontinue, or change at any time, speci®cations or designs without notice and without incurring obligations.

Book	2	PC 903	Catalog No. 533-070	Printed in U.S.A.	Form 30H-10SI	Pg 1	11-98	Replaces: 30H-8SI
Tab	5c