Operation Manual

PREVENTIVE MAINTENANCE

2OAC/OACH Series air conditioners are designed to last a long time and to give maximum

performance and reliability with minimum maintenance. To prolong the life of the unit, regular

maintenance must be performed as specified below:

1. BLOWER MOTOR ASSEMBLY

The motors for all models are sealed and require no oiling. Dust and

dirt may be removed from the motor vanes by washing, blowing with

an air hose or with a vacuum.

2. FILTERS

A clogged filter will cause the unit to operate at greatly reduced efficiencies. We recommend that the

filter be inspected on a regular bases every six weeks or more often depending on the environment.

The Evaporator washable foam filter is located behind the return air grille and can be easily removed

by pulling the grille out. The condenser washable foam filter is located in the grille on the back of the

unit. Remove the grille by lifting it out. The filter can then be removed for washing. The filters must

be washed periodically or as needed.

3. CONDENSATE PUMP

When servicing pump follow these steps;

1. Make certain that the unit is disconnected from the power source before attempting to service or

remove any component.

2. Be sure the floats move freely. Clean as necessary.

3. Remove the volute and check for obstructions. Clean as needed.

4. Clean the tank with warm water and mild soap when mineral deposits are visible.

5. Check the inlet and outlet piping. Clean as necessary. Be sure there are no kinks in the lines that

would inhibit flow.

GENERAL

When necessary maintenance steps outlined above are followed, the air conditioner will provide long

and reliable service. The refrigeration and electrical circuits of the system should only be serviced by

a fully qualified service technician.