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920-087-02
(9-03)
J. RoutineMaintenance
NOTE: Units are to be inspected and serviced by qualified service personnel only.
1. Clean the unit air intake filter at least every 300 to 350 hours
of operation. Clean the filters with a mild detergent in warm
water and allow to dry thoroughly before reinstalling.
2. The indoor coil (evaporator coil), the outdoor coil (condenser
coil) and base pan should be inspectedperiodically (yearly
or bi-yearly) and cleaned of all debris (lint, dirt, leaves, paper,
etc.). Clean the coils and base pan with a soft brush and
compressed air or vacuum. If using a pressure washer, be
careful not to bend the aluminium fin pack. Use a sweeping
up and down motion in the direction of the vertical aluminum
fin pack when pressure cleaning coils. Cover all electrical
components to protectthem from water or spray. Allow the unit
to dry thoroughly, inspect all gasket material for deterioration
(replace as necessary), and then reinstall the chassis in the
sleeve.
NOTE: Do not use a caustic coil cleaning agent on coils or base pan. Use a biodegradable cleaning agent and degreaser.
Before reinstalling the chassis in the sleeve, inspect the
indoorblower housing, blower wheel, condenser fan blade,
and condenser shroud periodically (yearly or bi-yeafly) and
clean of all debris (lint, dirt, mold, fungus, etc.) Clean the
blower housing area and blower wheel with an antibacterial /
antifungal cleaner. Use a biodegradable cleaning agent and
degreaser on condenser fan and condenser shroud. Use
warm or cold water when rinsing these items. Allow all items
to dry thoroughly before reinstalling them.
3. Periodically (at least yearly or bi-yearly): inspectall control
components, both electrical and mechanical, as well as the
power supply. Use proper testing instruments(voltmeter,
ohmmeter, ammeter, wattmeter, etc.) to perform electrical
tests. Use an air conditioning or refrigeration thermometer to
check room, outdoor and coil operating temperatures. Use a
sling psychrometerto measure wet bulb temperatures indoors
and outdoors.
4,
,
6,
Inspect the surrounding area (inside and outside) to ensure
that the units' clearances have not been compromised or
altered.
Inspect the sleeve and drain system periodically(at least yearly
or bi-yearly) and dean of all obstructions and debris. Clean
both areaswith an antibacterial and antifungal cleaner. Rinse
both itemsthoroughly with water and ensure that the drain
outlets are operating correctly. Check the sealant around the
sleeve and reseal areas as needed.
Clean the front cover when needed. Use a mild detergent.
Wash and rinsewith warm water. Allow them to dry thoroughly
before reinstalling them in the chassis.
Filters
Return Air
Grille
CondenserFanBlade
\
Discharge Air Grille IndoorBlower_
Condenser Gasket
Condenser Shroud
8asepan
Control Panel
Evaporator Coil
Wall Sleeve
2O
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