Preventive Maintenance Agreement shall include, but not be limited to, the following services as required to keep the system operating properly. A. Air conditioning System Services - observe, check, clean and/or inspection of the following: 1. Obtain operating data and document compressor suction and discharge pressure. 2. Check low pressure, high pressure, oil pressure, crankcase heaters cut in, and cutout setting. 3. Check oil level and condition (dirty or foamy) and change when needed. 4. Check for moisture present in refrigerant and correct as required if site glass is provided. 5. Check refrigerant charge and re-charge as required. 6. Check refrigerant piping and compressor for leaks. 7. Check and clean switch contacts and motor starter contacts. 8. Check Motor voltage and amperage 9. Check temperature, vibration, and noise level of motors, bearing, and compressor. 10. Check conditions of coil’s air side surface and clean.
