Preventative Maintenance and Repair of HVAC Systems-Condensers and Chillers at Various Facilities Including Summer and Winter Turnover

SCOPE OF WORK: A. The scope of this work is to provide preventative maintenance, repair of HVAC chiller and condenser systems including summer and winter switchovers of systems. B. Quarterly Preventive Maintenance Work (Every 3 months) 1. Startup of HVAC System for Summer and Winter 2. Inspection and general check-up of all HVAC units at all listed locations and provide report 3. Cleaning of equipment 4. Replace existing filters with new and provide report. 5. Refrigerant inspections - check pressures and quantity of refrigerant and provide report 6. Check compressor operating pressures 7. Check condition of fan belts, adjust or replace as needed (leave extra set of belts in unit) 8. Power wash condenser coils (at start up for Summer and Winter) 9. Chemically clean evaporator coils (at start up for Summer and Winter) including heat coils 10. Check operation of thermostats and calibrate as necessary 11. Check operation of safety controls and calibrate as necessary 12. Check condition of pulley and flywheels 13. Lubricate motors and bearings and tighten locking collars 14. Purge all condensate lines on a/c units and check condition 15. Check Freon levels - report units with leaks. 16. Check and adjust valves 17. Check running condition of all units - report any faulty parts with estimate. e.g. Condenser fan motor, blower motors, relays, limit controls, thermostats, etc. 18. All parts (filters/ belts/ spares/ cleaning solution/ etc.) and labor must be included in the base bid. 19. Maintenance of burners, heating control system and all related heating equipment including cleaning of heat coils. 20. Winter Turnover is to commence by October 1st and to be completed by October 31st or in a timeframe specified by NYCHA. 21. Summer Turnover is to commence by June 1st and be completed by July 1st or in a timeframe specified by NYCHA.

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Heating, Ventilating, and Air Conditioning (HVAC), Instrumentation and Control for HVAC, HVAC Air Distribution, Central HVAC Equipment.