PREVENTIVE MAINTENANCE SCHEDULE
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FREQUENCY OF MAINTENANCE, MONTHS
(FIRST 4 YEARS)
I T E M
CAUTION: Disconnect power supply and allow all rotating parts to stop before servicing the unit.
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Clean air filter (Aluminum)*
Pressure wash condenser & cooling coil as required
Check blower belt, tension, wear tear/replace if required
Check alignment of pulleys
Clean drain pan, drain pipe
Clean blower wheel
Check for loose bolts/screws & tighten as necessary
Check all electrical controls, components, wiring terminals, etc..., for sparks,
over heat, loose connections/repair or correct
Check for rusted/paint
Check all temperature, pressure readings as applicable and satisfy the
operation performance
Run test all motors and check the amperage
Grease/oil as required
Check vibration isolators
Clean and fix thermal bulbs in the correct location. Insulate it.
Check canvass connections, insulation damage
NOTE: Always observe for abnormal noise or vibration.
MAINTENANCE TOOLS/EQUIPMENT REQUIRED
STANDARD : Screw drivers (Slot & Phillips), adjustable wrenches, pliers, refrigeration wrenches & socket set wrenches, pulley
puller, etc.
SPECIAL : Manifold gauge set, R-22 charging cylinder, belt tension checker, leak detector, vacuum pump with electronic gauges,
thermometer, hook type ammeter/voltmeter/ohmmeter and oxy-acetylene brazing set etc.
* If fiberglass filters used, replace when very dirty.
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