CVHH Annual Inspection List Revised: 10 Oct 2014
CVHH Annual Inspection List
Follow the annual maintenance instructions provided in the text of this manual, including but
not limited to:
Compressor Motor
• Motor continuity.
• Motor meg test.
•Check motor terminals.
• Inspect motor terminal board.
Starter or AFD
• Inspect starter contacts.
• Check all connections per manufacturer specifications.
• Follow all manufacturer recommendations for starter or AFD maintenance.
• Inspect/clean/service the AFD cooling system (water- or air-cooled AFD).
• Record all applicable starter or starter component settings.
Oil System
• Annual oil analysis (follow recommendations).
• Clean and lubricate oil system as required.
• Electrical inspection.
• Pump motor continuity check.
• Run oil pump and check differential oil pressure.
Condenser
• Inspect for fouling and scaling in tubes.
• Check operation of condenser water flow sensing device.
• Factory recommendation to eddy current test tubes every three years.
Evaporator
• Inspect for fouling and scaling in tubes.
• Check operation of evaporator water flow sensing device.
• Factory recommendation to eddy current test tubes every three years.
Control Circuits
• Verify control parameters.
• Test appropriate sensors for accuracy.
• Ensure sensors are properly seated in wells with thermopaste installed.
• Check evaporator leaving water temperature low temperature cutout setpoint.
• Condenser high pressure switch check-out.
• Check adjustment and operation of the inlet guide vane actuator.
Leak Test Chiller
• Check purge times and unit performance logs. If warranted, pressure leak test.
• Review oil analysis. If required, submit refrigerant sample for analysis.
• Inspect unit for any signs of refrigerant or oil leakage.
• Check unit for any loose bolts on flange, volutes, or casing.
Purge Unit
• Review this manual and follow maintenance and/or inspection items identified.
• Review purge pump out data.
• Review overall operation of purge and service as necessary.
Exterior
• Inlet guide vane linkage.
• Clean and touch-up painted surfaces as needed.
• Repair deteriorated, torn, or missing insulation.
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