27
M
od
Pac II, 9/09-15
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 M
od
Pac™ 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 power off 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. An obstruction will force water to dump into the middle of the unit and drain out the sides
of the M
od
Pac II™ A/C, 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
Oiling of the condenser fan motor or the evaporator blower motor is not recommended.
6.1 Scheduled Maintenance
Maintenance