CONTENTS (cont)
• PUMP OPERATION
Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
• TRANSDUCERS
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52-99
• ECONOMIZER EXV CONTROL
• EXV TROUBLESHOOTING PROCEDURE
• COMPRESSOR OIL SYSTEM
• ISOLATION VALVE
• EVAPORATOR FREEZE PROTECTION
• LOW FLUID TEMPERATURE
• LOSS OF FLUID FLOW PROTECTION
• TUBE PLUGGING
• EVAPORATOR RETUBING
All Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
RTPF Condenser Coil Maintenance and Cleaning
Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
• REMOVE SURFACE LOADED FIBERS
• PERIODIC CLEAN WATER RINSE
Condenser Fans. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
• LEAK TESTING
• REFRIGERANT CHARGE
Safety Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Relief Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
• COMPRESSOR DRIVES
• CONDENSER FAN DRIVES
• VFD STATUS
• VFD CONFIGURATION TABLES
• VFD ALARM RESET
• VFD REPLACEMENT PROCEDURE
• LONG TERM STORAGE
MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Page
• CURRENT ALARMS
• RESETTING ALARMS
• ALARM HISTORY
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
• TROUBLESHOOTING GUIDE
DISPLAY TABLES. . . . . . . . . . . . . . . . . . . . . . . . . 129-149
APPENDIX E - PIPING AND
AND LOG SHEETS . . . . . . . . . . . . . . . . . . . . . . . . . 159, 160
INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
START-UP CHECKLIST
FOR 30XV LIQUID CHILLERS . . . . . . . . CL-1 to CL-8
SAFETY CONSIDERATIONS
Installing, starting up, and servicing this equipment can
be hazardous due to system pressures, electrical compo-
nents, and equipment location (roof, elevated structures,
etc.). Only trained, qualified installers and service techni-
cians should install, start up, and service this equipment.
When working on this equipment, observe precautions in
the literature, on tags, stickers, and labels attached to the
equipment, and any other safety precautions that apply. Fol-
low all safety codes. Wear safety glasses and work gloves.
Use care in handling, rigging, and setting this equipment,
and in handling all electrical components.
Electrical shock can cause personal injury and death. Shut
off all power to this equipment during installation and ser-
vice. There may be more than one disconnect switch. Tag
all disconnect locations to alert others not to restore power
until work is completed.
Electrical shock can cause personal injury and death. After
unit power is disconnected, wait at least 20 minutes for the
VFD (variable frequency drive) capacitors to discharge
before opening drive.
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
WARNING
WARNING
Page
. . . . . 162-168
. . . . . . . . . . 169