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ROUTINE MAINTENANCE
AIR FILTER
Clean the unit air intake fi lter at least every 300 to 350 hours
of operation. Clean the fi lters with a mild detergent in warm
water and allow to dry thoroughly before reinstalling.
COILS AND BASE PAN
The indoor coil (evaporator coil), the outdoor coil (condenser
coil) and base pan should be inspected periodically
(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 fi n pack. Use
a sweeping up and down motion in the direction of the verti-
cal aluminum fi n pack when pressure cleaning coils. Cover
all electrical components to protect them from water or spray.
Allow the unit to dry thoroughly before reinstalling it in the
sleeve.
BLOWER WHEEL / HOUSING / CONDENSER FAN /
SHROUD
Inspect the indoor blower housing, evaporator blade, con-
denser fan blade and condenser shroud periodically (yearly
or bi-yearly) 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 con-
denser shroud. Use warm or cold water when rinsing these
items. Allow all items to dry thoroughly before reinstalling
them.
ELECTRONIC / ELECTRICAL / MECHANICAL
Periodically (at least yearly or bi-yearly): inspect all control
components: electronic, 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 an electronic tester to measure wet bulb temperatures
indoors and outdoors.
Units are to be inspected and serviced by qualifi ed service
personnel only. Use proper protection on surrounding
property. Failure to follow this notice could result in
moderate or serious property damage.
NOTICE
EXCESSIVE WEIGHT HAZARD
WARNING
Use two people to lift or carry the unit, and wear
proper protective clothing.
Failure to do so may result in personal injury.
Do not use a caustic coil cleaning agent on coils or base
pan. Use a biodegradable cleaning agent and degreaser,
to prevent damage to the coil and/or base pan.
NOTICE
ELECTRIC SHOCK HAZARD
WARNING
Turn off electric power before inspections,
maintenances, or service.
Extreme care must be used, if it becomes
necessary to work on equipment with power
applied.
Failure to do so could result in serious injury
or death.
CUT/SEVER HAZARD
WARNING
Be careful with the sharp edges and corners.
Wear protective clothing and gloves, etc.
Failure to do so could result in serious injury.
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