Product data

40 QK SERVICE AND MAINTENANCE
Remove unit grille, filter, and condensate pan for clean-
ing, lubricating, or replacing parts.
To avoid personal injury or damage to unit, do not ser-
vice until all power sources are shut down, locked out,
and tagged out. Failure to do so could result in personal
injury or unit damage.
Minimum Maintenance
1. Check, clean, or replace air filter each month or as
required.
2. Check cooling coil, drain pan, condensate trap, and con-
densate drain pan each cooling season for cleanliness. Clean
as necessary.
3. Check fan motor and wheel for cleanliness each heating
and cooling season.
4. Check electrical connections for tightness and controls
for proper operation each heating and cooling season. Ser-
vice as necessary.
Servicing
TO CLEAN OR REPLACE RETURN AIR FILTERS
1. Open intake grille by turning screws as shown in
Fig. 18.
2. Slide filter out.
3. Vacuum clean or wash filter with soapy water. Rinse and
let air dry. If filter needs replacing, filters are available
from the local dealer.
If air filter is not replaced in the unit, dust and dirt
gather in air conditioner and operation becomes
impaired.
TO CLEAN OR REPLACE DRAIN PAN
1. Place a plastic sheet on the floor to catch any water that
may spill from drain pan.
2. Remove the air intake and distribution assembly. Re-
move the condensate water in the drain pan by pulling
out the rubber drain plug (Fig. 19) and letting water drain
into a 3-gallon bucket.
Do not use a screw driver to pry drain pan out of
assembly. It could damage the pan.
3. Remove screws holding the drain pan. On size 024, there
are 4 screws, and on sizes 036 and 048 there are 6 screws.
Carefully hold the drain pan to remove it from the
assembly.
4. Re-install the drain pan using the appropriate number of
screws. Center and align the metal fan inlet orifice
(Fig. 19) with the fan. Ensure the fan spins freely.
INSTALLATION OPTIONS
Fig. 18 – Intake Grille Slotted Screws
Fig. 19 – Drain Plug