Maintenance and Repair for Mechanical Cooling , Boilers , Automatic Temperature Control Systems and Refrigerant Equipment

2026-11-03

The following work shall be performed twice per year , every Fall and Spring Season , at the direction of the of the Manager for Facilities Maintenance as part of the base contract price . Spring Start Up • Contractor shall coordinate start - up of chiller with the College ’ s HVAC technician so that necessary adjustments can be made via the BAS , etc . • Fill evaporator with water – if required , vent all air . Fill water shall be tested before filling system to confirm manufacture water quality requirements . • Perform a full operational inspection and start - up of unit . • Listen for any unusual noises or vibrations . • Check thermometers and pressure gauges for accuracy . Document readings and / or deficiencies to College representative . • Check system for signs of refrigerant leaks , both visually and with leak testing methods ( electronic leak detector etc .) • Check oil circuit operation and all associated controls . Document oil temperature and pressure . Check for leaks . Verify compressor oil level and add oil if necessary . • Inspect condenser fan operation and blades . • Clean and inspect condenser coils per manufacturer ’ s recommended method ( per twice per season ). Contractor to provide coil cleaner , tools , and materials . • Test functionality of all operating and safety controls ( flow switch , HPS , LPS , etc .) Report and deficiencies to College representative . • Preform reading of compressor operating current . Verify it is within range and compare to reading on unit controller ( if applicable ). • Check compressor windings and insulation using OHM meter and Megohmmeter . Document findings to submit to College representative . • Tighten and / or repair all electrical connections in unit and check condition of all wiring . • Inspect condenser coils for both damage and cleaning on air - cooled units and report findings to the College . • Clean VFD ’ s and check operation . Preform recommended preventative maintenance on VFD ’ s per manufacturer ’ s specification . • Check condition of all contactors , motor starters , overloads , etc . Report any deficiencies to College representative . • Verify settings and operation of motor protection and / or overloads . • Take oil sample for analysis . Report findings to College representative . • Clean inside of controls cabinet and the surrounding area . • Fill out College maintenance log for chiller ...

Maryland

2026-05-02