Operating instructions

4. Check electrical connections for tightness and controls for

proper operation each heating and cooling season. Service

when necessary.

5. Ensure wires are not contacting refrigerant tubes or sharp

sheet metal edges.

6. Check and inspect heating section before each heating season.

Clean and adjust when necessary.

7. Check flue hood and remove any obstructions, if necessary.

AIR FILTER

Never operate the unit without a suitable air filter in the

return-air duct system. Always replace the filter with the same

dimensional size and type as originally installed (See Tables

1 and 2 for recommended filter sizes).

Inspect air filter(s) at least once each month and replace

(throwaway-type) or clean (cleanable-type) at least twice during

each heating and cooling season or whenever the filter(s) becomes

clogged with dust and/or lint.

EVAPORATOR BLOWER AND MOTOR

NOTE: All motors are permanently lubricated. Do not attempt to

lubricate these motors.

C00046

Fig. 18—Cooling Charging Chart, 48GS018 Units

Fig. 20—Cooling Charging Chart, 48GS030 Units

C00043

C00042

Fig. 19—Cooling Charging Chart, 48GS024 Units

C00044

Fig. 21—Cooling Charging Chart, 48GS036 Units