Carrier AquaEdge 19MV, Руководство по запуску, эксплуатации и техническому обслуживанию

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Inspect the VFD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Recalibrate Pressure Transducers . . . . . . . . . . . . . 40
Recalibrate Temperature Thermistors . . . . . . . . . . . 40
Ordering Replacement Chiller Parts . . . . . . . . . . . . 40
TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . 41
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Checking Display Messages . . . . . . . . . . . . . . . . . . 41
Checking Temperature Sensors . . . . . . . . . . . . . . . 41
Checking Pressure Transducers . . . . . . . . . . . . . . . 44
Condenser Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
High Altitude Locations . . . . . . . . . . . . . . . . . . . . . . 45
Quick Test and 19MV Quick Test . . . . . . . . . . . . . . . 45
Quick Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
End of Life and Equipment Disposal . . . . . . . . . . . . 45
Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
APPENDIX A — PIC6 SCREEN AND MENU
STRUCTURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
APPENDIX B — CCN COMMUNICATION WIRING
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FOR MULTIPLE CHILLERS (TYPICAL) . . . . . . . . 57
APPENDIX C — MAINTENANCE SUMMARY
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AND LOG SHEETS . . . . . . . . . . . . . . . . . . . . . . . . 58
APPENDIX D — REMOTE CONNECTIVITY SETUP
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(BY CARRIER SERVICE) . . . . . . . . . . . . . . . . . . . . 59
INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
INITIAL START-UP CHECKLIST . . . . . . . . . . . . . . CL-1
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can be
hazardous due to system pressure and electrical components. Only
trained and qualified service personnel should install, repair, or
service air-conditioning equipment.
Untrained personnel can perform basic maintenance functions of
cleaning coils and filters and replacing filters. All other operations
should be performed by trained service personnel. When working
on air-conditioning equipment, observe precautions in the
literature, tags and labels attached to the unit, and other safety
precautions that may apply.
Follow all safety codes. Wear safety glasses and work gloves. Use
quenching cloth for unbrazing operations. Have fire extinguisher
available for all brazing operations.
It is important to recognize safety information. This is the safety-
alert symbol . When you see this symbol on the unit and in
instructions or manuals, be alert to the potential for personal
injury.
Understand the signal words DANGER, WARNING,
CAUTION, and NOTE. These words are used with the safety-
alert symbol. DANGER identifies the most serious hazards which
will result in severe personal injury or death. WARNING signifies
hazards which could result in personal injury or death. CAUTION
is used to identify unsafe practices, which may result in minor
personal injury or product and property damage. NOTE is used to
highlight suggestions which will result in enhanced installation,
reliability, or operation.
Centrifugal liquid chillers are designed to provide safe and reliable
service when operated within design specifications. When
operating this equipment, use good judgment and safety
precautions to avoid damage to equipment and property or injury
to personnel.
(Warnings continued on next page.)
DANGER
Failure to follow these procedures will result in severe
personal injury or death.
DO NOT VENT refrigerant relief valves within a building.
Outlet from rupture disc or relief valve must be vented
outdoors in accordance with the latest edition of ANSI/
ASHRAE 15 (American National Standards Institute/
American Society of Heating, Refrigerating, and Air-
Conditioning Engineers). The accumulation of refrigerant in
an enclosed space can displace oxygen and cause
asphyxiation.
PROVIDE adequate ventilation in accordance with ANSI/
ASHRAE 15, especially for enclosed and low overhead
spaces. Inhalation of high concentrations of vapor is harmful
and may cause heart irregularities, unconsciousness, or death.
Misuse can be fatal. Vapor is heavier than air and reduces the
amount of oxygen available for breathing. Product causes eye
and skin irritation. Decomposition products are hazardous.
DO NOT USE OXYGEN to purge lines or to pressurize a
chiller for any purpose. Oxygen gas reacts violently with oil,
grease, and other common substances.
NEVER EXCEED specified test pressures; VERIFY the
allowable test pressure by checking the instruction literature
and the design pressures on the equipment nameplate.
DO NOT USE air for leak testing. Use only refrigerant or dry
nitrogen.
DO NOT VALVE OFF any safety device.
BE SURE that all pressure relief devices are properly installed
and functioning before operating any chiller.
RISK OF INJURY OR DEATH by electrocution. High
voltage can be present on motor leads even though the motor is
not running. Open the power supply disconnect before
touching motor leads or terminals.
WARNING
DO NOT USE TORCH to remove any component. System
contains oil and refrigerant under pressure.
To remove a component, wear protective gloves and goggles
and proceed as follows:
a. Shut off electrical power to unit.
b. Recover refrigerant to relieve all pressure from system
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. Refrigerant 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 un-sweat remaining tubing stubs when neces-
sary. Oil can ignite when exposed to torch flame.
Failure to follow these procedures may result in personal inju-
ry or death.