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Our Maintenance Agreement Includes the Following Services

COMPLETE SYSTEM

  • Confirm against unusual noise & vibration
  • Maintain cleanliness of equipment rooms
  • Report to owner's designated responsible party upon entering & leaving premises for any possible adjustment necessary to the system
  • Notify responsible party of any services or materials  (excluding contract coverage) necessary to maintain  system up to design performance
  • Confirm general operation and condition

COOLING SYSTEM
Compressor:

  • Discharge and suction pressure
  • Confirm and /or adjust operation of capacity control
  • Visually confirm against oil contamination
  • Confirm and /or adjust high pressure cutout
  • Confirm operation of oil failure switch
  • Confirm operation of crankcase heaters
  • Inspect shaft seal for signs of leaking
  • Inspect for coupling wear
  • Adjust drive belt tension & pulley alignment
  • Confirm proper oil level and pressure

Refrigerant Circuit:

  • Confirm operation of solenoid valves
  • Confirm operation & adjustment of expansion valve
  • Inspect condition of cooling coil
  • Confirm operation & condition of chilled water pump
  • Confirm optium refrigerant charge

HEAT REJECTION SYSTEM
Water Cooled Condenser:

  • Check for waterside scaling and /or fouling
  • Adjust water regulating valve for optiumum discharge pressure

Cooling Tower, Evaporative or Air Cooled Condenser:

  • Lubricate bearings
  • Adjust fan belt tension and pulley alignment
  • Clean distributor pan or spray nozzles
  • Confirm float valve operations
  • Confirm bleed-off rate
  • Inspect cleanliness of air cooled condenser coil
  • Adjust water regulating valve for optimum discharge pressure

 

AIR HANDLING SYSTEM
Fan Coil Unit:

  • Adjust fan belt tension & pulley alignment
  • Lubricate bearings
  • Confirm proper drainage of drip pans & condensate drain

Filter Section:

  • Inspect condition of filters & change or replace filters as per contract agreement

TEMPERATURE & HUMIDITY CONTROL SYSTEM

  • Verify operation & calibration of controls

Control Air Compressor:

  • Confirm proper oil level
  • Drain condensate from receiver
  • Lubricate bearings
  • Verify operation & calibration of pressure switch
  • Verify operation & adjustment of pressure reducing valve
  • Adjust drive belt tension & pulley alignment

EXHAUST SYSTEM

  • Lubricate bearings
  • Adjust fan belt and pulley

HEATING SYSTEM

  • Confirm general operation and condition of:
    • Hot water boiler
    • Steam boiler
    • Duct furnace
    • Unit heaters
    • Heat exchanger
    • Electric resistance heaters
  • Inspect condition of heat transfer surfaces
  • Confirm proper quality of burner & pilot flames
  • Confirm performance of operation controls  (water make-up, operating thermostat, etc )
  • Confirm operation of safety controls (low water cutoff, high limit, etc
  • Inspect flue stack connection
  • Confirm proper air charge in expansion tank
  • Blow down boiler and low water cut off chamber