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M-SV-001-EN Rev. G
Chapter 6.0 Maintenance
6.1 Preventative Maintenance Tasks
"Table 6-1 Preventative Maintenance Tasks" identifies tasks that should be performed on a regular
basis to maintain optimal performance of the system.
Table 6-1 Preventative Maintenance Tasks
Item
Task
Frequency
6 Mos
12 Mos
Other
General
Inspections
Check physical condition of compressor.
√
Check for excessive vibration from other rotating equipment.
√
Check for oil in the system. The compressor
must
operate in an oil-free environment. Ensure all
oil is removed from the system.
√
Compressor
Inspections
Connect to the compressor using the Service Monitoring Tools software and download fault
and event logs. Review and save logs for future reference.
√
Connect to the compressor using the Service Monitoring Tools software and perform a
calibration. Do not save the calibration to EEPROM if the compressor has been operating
correctly. Create and save a Calibration Report for future reference.
√
Electrical
Inspections
Check main power supply voltages.
√
Ensure electrical terminals are tight.
√
Check for signs of hot spots/discoloration on power cables.
√
Check amperages during operation are as per design.
√
Check DC bus voltage.
√
Replace DC Capacitor Bus Bar Assembly.
Energized:
10 years
De-
energized:
5 years
Check operation of all system safety devices and interlocks.
√
Perform moisture-prevention measures.
√
Replace Soft Start fan.
5 Years, Refer
to Customer
Notification
B-CN-041-EN
Electronic
Inspections
Ensure all communication cables are secure.
√
Ensure all electronic modules are secure.
√
Check physical condition of all exposed PCBs.
√
Check all exposed PCBs for dust build-up and clean if necessary.
√
Check discharge and suction pressure/temperature sensors for accuracy against calibrated
pressure/temperature gauges.
√
Refrigeration
Check operation of IGV assembly.
√
Check system refrigeration charge.
√
Check superheat/level control, if applicable.
√
Check system and motor-cooling liquid line to ensure sufficient sub-cooling.
√
Verify discharge check valve operation.
If there is backward gas flow immediately after stopping the compressor, replace the check
valve.
√
Check operating conditions external to the compressor.
√
Inspect/clean motor-cooling strainer (if service has taken place).
As required
Summary of Contents for Turbocor TTS Series
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