Carrier 30HK040-060 User's Manual
Installation, Start-Up and
Service Instructions
CONTENTS
Page
GENERAL
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SAFETY CONSIDERATIONS
. . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25
Location
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Step 1 — Inspect Shipment
. . . . . . . . . . . . . . . . . . . . . 3
Step 2 — Rig the Unit
. . . . . . . . . . . . . . . . . . . . . . . . . . 3
• 30HK,HL UNITS
• 30HW UNITS
Step 3 — Place the Unit
. . . . . . . . . . . . . . . . . . . . . . . . 3
• 30HK,HL UNITS
• 30HW UNITS
Step 4 — Check Compressor Mounting and
Connections
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Step 5 — 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 — 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
30HK040-060
30HL050,060
30HW018-040
Reciprocating Liquid Chillers
50/60 Hz
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 2
Tab
5c
PC 903
Catalog No. 533-070
Printed in U.S.A.
Form 30H-10SI
Pg 1
11-98
Replaces: 30H-8SI
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