42
ComPac 9/04-12
Marvair
®
strongly recommends that the air conditioner be serviced a minimum of twice
a year – once prior to the heating season and once prior to the cooling season. At this
time the filters, evaporator coil, condenser coil, the cabinet, and condensate drains
should be serviced as described below. Also at this time, the air conditioner should be
operated in the cooling and heating cycles as described in Chapter 3, Start-Up. In
addition to this seasonal check-out, the ComPac
®
A/C should be maintained as follows:
Air Filter
Replace the air filter whenever it is visibly dirty.
Evaporator
If the evaporator becomes clogged or dirty, it may be cleaned by careful vacuuming
or with a commercial evaporator cleaning spray. DO NOT use a solvent containing
bleach, acetone, or flammable substances. Turn off power before cleaning.. Be
careful not to wet any of the electrical components. Be sure the unit has dried before
restarting.
Condenser
Periodically inspect the outdoor condenser coil and the cabinet air reliefs for dirt or
obstructions. Remove foreign objects such as leaves, paper, etc.
If the condenser coil is dirty, it may be washed off with a commercial solvent intended
for this purpose. TURN OFF POWER BEFORE CLEANING! Be sure that all
electrical components are thoroughly dry before restoring power.
Cabinet
The cabinet may be cleaned with a sponge and warm, soapy water or a mild detergent.
Do not use bleach, abrasive chemicals or harmful solvents.
Drains
Regularly check the primary and secondary condensate drains. The secondary drain
has a stand pipe (on AVP20-72). An obstruction will force water to dump into the middle
of the unit and drain out the sides of the ComPac, causing discoloration of the side panels.
If discoloration is noted, service the drains.
If a commercial drain solvent is used, flush out the drain pan and system with plenty
of fresh water to prevent corrosion.
Lubrication
Under normal conditions, the condenser fan and evaporator blower motors have a
five year supply of lubricant. However, if the unit is operated in a harsh environment,
lubricate the bearings more frequently with SAE 20 weight non-detergent oil.
M
AINTENANCE
6.1 S
CHEDULED
M
AINTENANCE
