Operation Manual

The optional nozzles can be
easily attached to the unit
without tools to direct cold air
(or warm air with heat pump)
to a specific spot or area. The
chart below illustrates
application information for
each nozzle kit.
A condensate pump kit designed as an automatic condensate removal system for water dripping off of the
evaporator coil is available. This pump kit can be used in place of the condensate collection tank, which is
standard on every model except the 5-ton, where a condensate pump is standard equipment.
It is a convenience for those who do not want to empty the 5.0 gallon condensate tank. It is very
convenient on units that are permanently installed.
This pump is capable of pumping against a 20 foot head and is controlled by a float/switch mechanism
which turns the pump "on" when approximately 2 1/2 inches of water collects in the tank and
automatically switches "off" when the tank drains to a level of approximately 1 1/4 inches. A built-in
pump safety switch turns off the air conditioner if the condensate line becomes plugged or pump motor
failure should occur. A built-in check valve prevents drain back and short cycling of the pump.
9
Model
Nozzles
Round Duct
Number/Diameter
Compressed Length
Approximate
Extended
Length
2OAC12
2OACH12
2OAC18-24
2OACH18-24
2OAC36
2OACH36
2OAC60
2OACH60
2NK-1
2 x 4 inch
15 inches
21 inches Yes No No No
2NK-2
2 x 6 inch
22 inches
32 inches No Yes Yes No
2NK-3
2 x 8 inch
20 inches
29 inches No No No Yes
DISCHARGE AIR NOZZLE KIT ASSEMBLY
2NK-1
2NK-2
2NK-3
OPTIONAL CONDENSATE PUMP KIT
The pump kit in-
cludes tubing,
mounting bracket,
hardware, wiring
and insulated
mounting base.
Pump Kit
Pump kit installs in place
of the condensate bucket
located behind the door
on the front of the unit.