Installation Instructions

Preliminary instructions:

READ BEFORE INSTALLING UNIT

1

1.  Check window opening size: the mounting parts 
furnished with this air conditioner are made to install in
a wooden sill double-hung window. The standard parts
are for window dimensions listed above. Open sash to
a minimum of 19″ (483mm). (FIG.1)

Heavy duty

NOTE: DO NOT USE ANY SCREWS OTHER THAN THOSE SPECIFIED HERE.

Do the following before starting to install unit. See illustrations below.
Check dimensions of your unit to determine model type:

Medium

Unit Height:

Unit Width:

Min. Window Opening:

Min. Window Width:

Max. Window Width:

18-5/8″

17-5/8″

26-1/2″

23-5/8″

19-1/2″

18-1/2″

31″

28″

42″

40-1/2″

2.  Check condition of window: all wood parts of window
must be in good shape and able to firmly hold the needed
screws. If not, make repairs before installing unit. 
3.  Check your storm windows: If your storm window
frame does not allow the clearance required, correct by
adding a piece of wood as shown (FIG.2), or by removing
storm window while room air conditioner is being installed. 

15,000~18,500 BTU

22,000~28,500 BTU

sash

1/2″ min

storm window frame or
other obstruction

FIG.1

19″ min

inner sill

outer sill

Capacity:

FIG.2

sash

1/2″ min

storm window frame or
other obstruction

19″ min

board thickness as
required, along entire inner
window sill; fasten to inner
sill with two nails or screws.

1-1/2″ min

inner sill

outer sill

16120300A04662

For Medium

 (15,000-18,500 BTU)

 + Heavy duty 

(22,000-28,500 BTU)

 Air Conditioner

Pay attention to danger and safety notices.

To avoid risk of personal injury, property damage, or product damage due to the weight of this device and sharp edges that may 
be exposed:

Air conditioners covered in this manual pose an excessive weight hazard. Two or more people are needed to move and install 
the unit. Wear protective gloves whenever lifting or carrying the unit. AVOID the sharp metal fins of front and rear coils. To 
prevent injury or strain, use proper lifting and carrying techniques when moving unit.
Carefully inspect location where air conditioner will be installed. Be sure it will support the weight of the unit overan extended 
period of time.
Handle air conditioner with care. 
Make sure air conditioner does not fall during installation.
If a new electrical outlet is required, have the outlet installed by a qualified electrician before installing unit.

Carefully read the installation manual before beginning.
Follow each step as shown.
Observe all local, state, and national electrical codes and by qualified, licensed, authorized personnel only.

INSTALLATION WARNINGS AND CAUTION

window sash seal

safety lock and

1/2″ long hex

head screw

top angle

foam gasket

washer head

locking screw

frame

assembly

(left)

side retainer

bottom rail

seal to unit

  frame

assembly

  (right)

1/2″  long

screws and

locknuts

locknut 3/4″

long flat

head bolt

sill angle

bracket

     window

support bracket

insulation 

panel

Installation Instructions