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. 11. Ascertain that proper freeze protection exists. 12. Annually, all coils shall be properly cleaned with a coil cleaning solution. 13. The Contractor is to provide all air filters. The cost of all filters shall be included in the bid price. B. Air Handling and Fan Coil Units 1. Check bearings for play, excessive temperature, and lubricate and adjust where possible. 2. Check housing for rust. Clean and paint as required. 3. Check condition and alignment of drive shaft and couplings, sheaves, fan wheels, blades, and belts. Change and/or align as required. 4. Check and tighten mounting bolts. 5. Check motor air passages. Clean as required. 6. Lubricate bearings per manufacturer’s instructions. 7. Check conditions of coil’s air side surface and clean 8. Check temperature, vibration, and noise level of motors and bearings. 9. Ascertain that proper freeze protection exists. 10. Annually, all coils shall be properly cleaned with a coil cleaning solution. 11. The Contractor shall also provide full filter service to all units. Bag filters are to be maintained and changed two (2) times per year using minimum 65% efficiency filters. All other filters to be changed at indicated service intervals. FME 40% efficiency pleated filters are required. C. Boilers - General 1. Affirm water level rate of change and water conditions and adjust. 2. Record temperature and pressure, compare with record. 3. Check automatic make-up water control for proper operation and adjust as needed. 4. Review and note blow down procedures (Steam) take proper action when required. 5. Examine for corrosion. 6. Check operation of feed water regulator of water level control and adjust as needed. Disassemble, inspect, clean, and repair if necessary. 7. Check operation and safety of relief valve. 8. Check operation of low water fuel cutoff. Disassemble, inspect, clean and repair if necessary. 9. Check all wiring to units for grounds and tighten connections. 10. Check operation of contactors, switches, relays, and clean and/or replace as needed. 11. Ensure enclosures are dust free and covers are in place. 12. Ensure that controls and connecting lines are protected from freezing. Examine operation of all control valves in fuel lines. Dismantle to check if necessary. Repair or replace as needed.
