Specifications

2
CONTENTS (cont)
Page
• ECONOMIZER EXV CONTROL
• EXV TROUBLESHOOTING PROCEDURE
• INSPECTING/OPENING ELECTRONIC
EXPANSION VALVE
Compressor Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 67
• COMPRESSOR OIL SYSTEM
Cooler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
• SUCTION SERVICE VALVE
• LOW FLUID TEMPERATURE
• LOSS OF FLUID FLOW PROTECTION
• TUBE PLUGGING
•RETUBING
• TIGHTENING COOLER HEAD BOLTS
• INSPECTING/CLEANING HEAT EXHANGERS
• WATER TREATMENT
• CHILLED WATER FLOW SWITCH
• CONDENSER WATER FLOW SWITCH AND
THERMISTORS
Refrigerant Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
• LEAK TESTING
• REFRIGERANT CHARGE
Safety Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
• COMPRESSOR PROTECTION
• COOLER PROTECTION
Relief Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
• PRESSURE RELIEF VALVES
• INSPECTION AND MAINTENANCE
MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Recommended Maintenance Schedule . . . . . . . . . . 73
TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . 73-90
Alarms and Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
• DIAGNOSTIC ALARM CODES AND POSSIBLE
CAUSES
Service Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
APPENDIX A — TOUCH PILOT™
DISPLAY TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . 91-109
APPENDIX B — NAVIGATOR™ DISPLAY
TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110-122
APPENDIX C — CCN TABLES . . . . . . . . . . . . . . 123-137
APPENDIX D — 30XW150-400 CPM
DIP SWITCH ADDRESSES. . . . . . . . . . . . . . . . 138-140
APPENDIX E — PIPING AND
INSTRUMENTATION . . . . . . . . . . . . . . . . . . . . . . 141, 142
APPENDIX F — GLOBAL TIME SCHEDULE
CONFIGURATION FOR i-Vu
®
DEVICE AND CSM
CONTROLLER . . . . . . . . . . . . . . . . . . . . . . . . . . . 143-145
APPENDIX G — MAINTENANCE SUMMARY
AND LOG SHEETS . . . . . . . . . . . . . . . . . . . . . . . 146-149
INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
START-UP CHECKLIST
FOR 30XW LIQUID CHILLERS . . . . . . . . CL-1 to CL-7
SAFETY CONSIDERATIONS
Installing, starting up, and servicing this equipment can be
hazardous due to system pressures, electrical components, and
equipment location. Only trained, qualified installers and ser-
vice technicians should install, start up, and service this equip-
ment. When working on this equipment, observe precautions in
the literature, on tags, stickers, and labels attached to the equip-
ment, and any other safety precautions that apply. Follow all
safety codes. Wear safety glasses and work gloves. Use care in
handling, rigging, and setting this equipment, and in handling
all electrical components.
WARNING
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.
WARNING
DO NOT VENT refrigerant relief valves within a building.
Outlet from relief valves must be vented in accordance
with the latest edition of ANSI/ASHRAE (American
National Standards Institute/American Society of Heating,
Refrigerating and Air Conditioning Engineers) 15 (Safety
Code for Mechanical Refrigeration). The accumulation of
refrigerant in an enclosed space can displace oxygen and
cause asphyxiation. Provide adequate ventilation in
enclosed or low overhead areas. Inhalation of high concen-
trations of vapor is harmful and may cause heart irregulari-
ties, unconsciousness or death. Misuse can be fatal. Vapor
is heavier than air and reduces the amount of oxygen avail-
able for breathing. Product causes eye and skin irritation.
Decomposition products are hazardous.
WARNING
DO NOT USE TORCH to remove any component. System
contains oil and refrigerant under pressure.
To remove a component, wear protective gloves and gog-
gles and proceed as follows:
a. Shut off electrical power to unit.
b. Recover refrigerant to relieve all pressure from sys-
tem using both high-pressure and low pressure ports.
c. Traces of vapor should be displaced with nitrogen
and the work area should be well ventilated. Refrig-
erant in contact with an open flame produces toxic
gases.
d. Cut component connection tubing with tubing cutter
and remove component from unit. Use a pan to catch
any oil that may come out of the lines and as a gage
for how much oil to add to the system.
e. Carefully unsweat remaining tubing stubs when nec-
essary. Oil can ignite when exposed to torch flame.
Failure to follow these procedures may result in personal
injury or death.
CAUTION
DO NOT re-use compressor oil or any oil that has been
exposed to the atmosphere. Dispose of oil per local codes
and regulations. DO NOT leave refrigerant system open to
air any longer than the actual time required to service the
equipment. Seal circuits being serviced and charge with
dry nitrogen to prevent oil contamination when timely
repairs cannot be completed. Failure to follow these proce-
dures may result in damage to equipment.
CAUTION
This unit uses a microprocessor-based electronic control
system. Do not use jumpers or other tools to short out
components, or to bypass or otherwise depart from rec-
ommended procedures. Any short-to-ground of the con-
trol board or accompanying wiring may destroy the
electronic modules or electrical components.