Specifications include, but are not limited to: 1. Clean coils, condensers, strainers and traps; 2. Change oil, check and repair leaks; 3. Check for and repair leaks of refrigerant, add refrigerant as required; 4. Tighten, adjust and clean internal unit controls and safety devices (many sites have standalone thermostats); 5. Provide seasonal change-over, as required; 6. Clean drip pans and condensation lines as far as sanitary drains; 7. Maintain proper belt tension and alignment. Provide a spare belt of each size on site and replace worn belts as required; 8. Replace damaged, worn or inoperative components as required; 9. Maintain electrical wiring from disconnect switch to unit; 10. Adjust valves, controls, dampers and calibrate controls; 11. Clean, adjust and maintain humidifier apparatus; 12. Maintain thermostat calibration as required; 13. Provide technical assistance over-the-telephone; and 14. Change filters four (4) times per year and/or when needed, which may be dependent upon season and location (see Attachments A and B). Units must be shut down during filter change. a. Filters will be pleated DP-60, high efficiency filters with the exception of one inch (1”) filters, which will be DP-40 pleated, medium efficiency filter or washable filter. Replace interior washable, pleated filters with MERV 11 filters (minimum standard capacity).
