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73NetworkAIR FM DX 60 Hz Operation, Maintenance, and Troubleshooting
Semi-Annual Preventive Maintenance
* Perform all the Monthly/Quarterly Preventive Maintenance items and the items below.
Prepared by: _________________________________
Model Number: ______________________________
Serial Number: _______________________________
Date: _________________
Cleanliness
Check the cleanliness of the evaporator coil. Clean if required.
Mechanical
Check the glycol concentrate of the glycol loop (glycol modules only).
• Glycol % ____________________________
• Water % ____________________________
Electrical
Verify contactor and relay operation integrity.
Check the main power wiring for the following components:
• Reheat elements
• Evaporator and condenser motors
• Compressors
• Humidifiers
• Glycol pumps