KPO PORTABLE AIR CONDITIONERS KWIKOOL
9
NOTE
KPO models utilize high static blowers. The KPO systems must
have a minimum of 25 feet of ducting for each inlet and outlet.
KPO12 and KPO25 must have 100 total feet of duct (min 2 ducts).
KPO5 must have 50 feet of total ducting (min one duct). For ex-
ample, if using a KPO12, 100 feet of duct is needed. Use four 25-
foot pcs or two 50-foot pcs on any outlet. If unsure about the cur-
rent application, call KWIKOOL at 1-800-KWIKOOL.
Customers using this unit only to blow conditioned air and that are not trying to condition a space may
not need to connect a return air duct. However, the KPO series requires a minimum amount of duct to
operate (see specifications). If operating this unit with no ducting, reduce the return air by at least 50%.
CAUTION
Allowing the KPO to operate without duct or without reducing the
return air could cause condensate water leakage, diminished tem-
perature difference and/ or evaporator motor failure.
Install condenser flex duct, hot air discharge in COOL mode.
Direct the hot air discharge away from the conditioned space and away from the condenser air in-
takes. This is especially true when the KPO is used in a confined space or indoor closed space.
This is done with 12” duct on KPO5 and a 20” duct onKPO12 and KPO25.
For the 12- and 25-ton KPO (the 25-ton KPO has 2 20” ducts) and one 12” duct for the 5-ton KPO,
clamp the duct onto the flange(s) on the control side of the KPO and route to the desired location.
See specifications for maximum duct length.
NOTE
It is not necessary to connect hot air discharge duct if using the
KPO in heat mode or outdoors and ducting cooling into a space.
When used indoors or in a confined space in COOL mode, and the hot air exhaust is ducted out, the
KPO must have a supply of makeup air for the condenser. The condenser make-up air cannot be duct-
ed into the KPO on standard models and must come from the surrounding space.
CAUTION
Make sure there is adequate fresh air supply, or the unit will shut
down on High Pressure alarm (HP) to protect the compressor from
catastrophic failure.
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