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5 Installation and Cleaning
5.1 Proper Installation and Drainage
Older Koldfront window air conditioners included a drain plug that could be removed to assist with water
drainage in excessively humid operating environments. Current models DO NOT use drain plugs. WAC
series air conditioners were modified to increase unit operating efficiency and as a result the drain hole
and plug have been removed.
As water builds up towards the rear / back of the unit the fan blade will begin to splash and disperse that
water over the condenser coils which significantly aids in cooling the internal components and increases
the overall efficiency of the unit. If there is an over-accumulation of water, it will simply drain out of the
lower back edge of the unit onto the exterior ground. Provided that the unit has been installed properly
with a slight rearward slope as indicated below, there will not be drainage issues with the unit.
Service Note: Check that the air conditioner is tilted about 3° to 4° downward toward the outside. After
proper installation, water from the coils should not drain from the unit during normal use. Correct the
slope if necessary.
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