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Preventative Maintenance Programs
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Keeping your system properly maintained will lower energy and repair costs, prevent breakdowns and prolong the life of your equipment.
Preventative maintenance includes inspection and cleaning of all components for proper operation in the following applications:
We have PM programs to fit any size application and meet
your maintenance needs monthly, quarterly or annually,
including the inspections listed above, special coil
cleaning treatments, filter changes, Eddy Current
Testing, belt changes, etc.
Chiller Systems
Record suction and discharge. Check oil pressure.
Inspect refrigerant controls. Inspect refrigerant charge.
Inspect safety controls. Inspect low pressure cut out.
Inspect high pressure cut out. Inspect operation of
crankcase heater. Inspect shaft seals for signs of leaking.
Inspect operation of heat pump changeover. Inspect valves.
Check temperature drops across dryers and strainers.
Inspect Solenoid valves. Check oil color and level through
sight glass. Check capacity control operation.
Multi-Zone Air Handling System
Lubricate fan bearings; fan belts check; adjust and/or change
(if needed); fans and fan drive alignment; outside air intake
screens; fan coil units; condensate pans and drains; expansion
valves; bulb clamp; fans and scrolls; condition of cooling and
exhaust system.
Air Handling System
Lubricate fan bearings; fan belts check; adjust and/or change
(if needed) fans and fan drive alignment; outside air intake
screens; fan coil units; drip pans and drains; expansion valves;
bulb clamp; fans and scrolls; condition of cooling and exhaust
system.
Split Systems
Inspect all components for proper operation. Test all safety
controls. Measure operating voltages and amperages. Measure
operating temperatures. Measure compressor operating pressures,
sequencing and temperatures. Inspect hot gas bypass valve and
adjust if necessary. Adjust unloaders for proper capacity control.
Check thermostatic expansion valve operation and condition.
Inspect head pressure controller(s). Inspect oil level at sight
glass. Inspect filter drier indicator for proper conditions.
Inspect evaporator and condenser coil for leaks. Inspect heat
exchanger condition. Inspect condensate pans and drains, remove
visible dirt. Check supply fan motor operation and condition.
Inspect v-belts and motor bearings. Inspect economizer and
damper operations. Test, lubricate and adjust economizer
dampers and linkage. Inspect electrical components, terminal
connections and wiring.
Electrical
Record motor amperage and compare to rating. Lubricate motor
bearings; noise and vibrations; connections on magnetic
starters; voltage amperage on electrical heaters compare with
rating. Make sure all control boxes have proper covers.
Control Compressor
Drive belt tension (adjust or change if needed) and pulley
alignment; oil level; drain condensate from receiver; operation
and calibrations of pressure switch; operation and adjustment of
pressure reducing valve.
Pneumatic Air Dryer
Condenser coils; drain condensate; oil separator; air filter.
Exhaust Fans
Inspect bearings and shafts. Inspect integrity of fan wheels.
Check motor amperage and windings. Check motor bearings and note
abnormalities. Clean fan wheels and exhaust screens.
HVAC Package Unit
Inspect coil condition. Inspect controls. Inspect and
calibrate safeties. Inspect expansion valves and record
superheat. Inspect crank heater. Inspect evaporator temperature
differential. Inspect and clean condensate drains and pans.
Inspect economizer operation. Inspect and adjust if needed
damper linkage. Inspect motor operation. Inspect, adjust and/or
change belts (if needed) Inspect drive condition. Inspect fan
condition. Inspect for proper rotation. Inspect bearings.
Inspect alignment. Inspect contractors and points. Inspect
connections.
Direct Drives Circulating Pumps
Inspect pump head; inspect mechanical seals or stuffing box;
inspect and tighten motor and pump mounting; inspect and repair
piping insulation; inspect wiring and conduit; inspect general
condition for rust; inspect valves; inspect and lubricate motor
and pump head bearings; inspect motor pump coupling for
alignment; condition and security to shaft.
Kitchen, Refrigeration & Ice Machines
Check inlet water supply for worn o-ring. Check water
distributor jets for blockage. Check voltage and amperage to
motor. Check evaporator coil and clean as needed. Clean
condenser coil. Check hot water tank and clean as needed.
Check inlet valve seat clean scales as needed. Tighten all
electrician connections. Tighten all bolts. Oil motors if
applicable. Check capillary for cracks or worn out spots.
Check cube water flow system with ice machine cleaner.
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