62
ARTC-SVX007A-EN
• Verify operation of Staging valves.
• Verify system operation by recording chiller operation
e.g. sub- cooling, superheat, water temps, etc.
Winter - Major Inspection
• Cleaning condenser tubes using the appropriate
equipment designed for tube punching.
• Connect to the compressors using the proper software
and perform routine maintenance checks.
• Remove panels from compressors and physically
check electrical components for wear and tear.
• Inspect all electrical panels and components for wear
and tear.
• Check and verify all safeties.
• Calibrate temperature sensors.
• Perform proper leak check on chillers and tag.
• Check operation of automatic valves on Chiller.
• Extract logs from chiller and clean SD card.
Maintenance Schedule
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury.
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Verify that no power is
present with a voltmeter.
WARNING
Refrigerant under High Pressure!
Failure to follow instructions below could result in an
explosion which could result in death or serious
injury or equipment damage.
System contains refrigerant under high pressure.
Recover refrigerant to relieve pressure before
opening the system. See unit nameplate for
refrigerant type. Do not use non-approved
refrigerants, refrigerant substitutes, or refrigerant
additives.
Table 19. Maintenance Schedule
Task Daily Annually 6 Months 12 Months Other
General Inspection
Check physical condition of chiller e.g. Insulation, compressors,
valves, sensors, etc.
X
Check Chiller for excessive vibration caused from external sources X
Check for oil in the system. Chiller must operate in an oil free
environment.
(a)
X
Verify external components are in working order e.g. Cooling
towers, Pumps, Air handlers, Water valves etc.
X
Verify chilled/ condenser water pressure gauges and record data X
Chiller Inspection
Clean condenser &/or evaporator using appropriate equipment
designed for tube punching (perform as needed) air cooled chillers
require condenser cleaning
X
Check the integrity of the evaporator and condenser tubes once
every 5 years or as needed.
(b)
X
Verify condenser water and chilled water pressure drops to insure
proper flow (use flow meter for better accuracy)
X
Compressor Inspection
Connect to the compressors using the Service Monitoring Tools
software and download event and fault logs, create yenta file
recordings. Review and save logs for future reference.
(c)
X
Using the proper software, perform bearing calibrations to verify
compressor performance (save calibration reports for proof)
X
Using the proper software, verify all adjustable settings are
accurate to your application via air/ water cooled
X
Check DC bus voltages on compressors X
Maintenance Procedures
To Next Page
Loading...
