The Vendor shall inspect and perform preventative maintenance bi-annually (spring and fall). Operational inspection of unit(s) to include but not limited to testing of proper operation in all modes; cooling, reheat, dehumidification, humidification, and indicating lamps. Each inspection shall include the following; 1. Inspect air filters, clean washable filters, and install new filters quarterly or as needed. 2. Inspect and test compressor operation; temperatures, pressures, superheat, subcooling, amperage, voltage (power & control) and, sounds levels for unusual noise. 3. Inspect refrigerant for low charge and moisture identification. 4. Check for any leaks and repair as necessary. 5. Inspect the evaporator coil and clean if necessary. 6. Inspect evaporator fans and motor for proper operation. 7. Check supply and return air temperature. 8. Check all control set points and adjust as required. 9. Perform electronics/microprocessor testing and diagnostics as applicable. 10. Inspect all electrical controls for visual damage, chattering, loose connections, pitting and heat damage. 11. Tighten all electrical connections. 12. Check and tighten all accessible set screws on pulleys, fans, and bearings. 13. Clean condensate pans and pump basins as required by visual inspection. 14. Clean condensate drains as needed. 15. Inspect air-cooled condenser...
