Manual

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 intakefilter at leastevery 300 to 350 hours
of operation. Clean the filters with a mild detergent in warm
water and allowto dry thoroughly before reinstalling.
2. The indoor coil (evaporatorcoil), 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 notto 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
componentsto protectthem fromwateror spray. Allow the unit
to dry thoroughly, inspect allgasket materialfor 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 reinstallingthem.
3. Periodically (at leastyearly 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. Usean air conditioning or refrigeration thermometer to
check room, outdoor and coil operating temperatures. Use a
sling psychrometerto measurewet bulbtemperatures indoors
and outdoors.
4,
,
6,
Inspect the surrounding area (inside and outside) to ensure
that the units' clearances have not been compromised or
altered.
Inspectthe sleeveanddrainsystem periodically(at leastyearly
or bi-yearly) and dean of all obstructions and debris. Clean
both areaswith an antibacterial and antifungalcleaner. Rinse
both itemsthoroughly with water and ensure that the drain
outlets are operating correctly. Check the sealant aroundthe
sleeve and resealareas as needed.
Clean the front cover when needed. Use a mild detergent.
Washand rinsewith warmwater. Allow themto dry thoroughly
before reinstallingthem in the chassis.
Filters
Return Air
Grille
CondenserFanBlade
\
DischargeAir Grille IndoorBlower_
Condenser Gasket
Condenser Shroud
8asepan
Control Panel
Evaporator Coil
Wall Sleeve
2O