Installation Instructions
1. WINDOW REQUIREMENTS
• These instructions are for a standard
double-hung window. You will need to modify
them for other types of windows.
• The air conditioner can be installed without the
side curtain panels if needed to fit in a narrow
window. See the window opening dimensions.
• All supporting parts must be secured to firm
wood, masonry or metal.
• The electrical outlet must be within reach of
the power cord.
• Follow the dimensions in the table and
illustration for your model.
Models
AHTR10, AHTR12
AHTR14
(With side curtain panels)
2. STORM WINDOW REQUIREMENTS
A storm window frame will not allow the air
conditioner to tilt toward the outside, and will
attach a piece of wood to the sill.
WOOD PIECES
WIDTH: 2
LENGTH: Long enough to fit inside the window
frame.
THICKNESS: To determine the thickness, place
than the top of the storm window frame or the
vinyl frame.
Attach securely with nails or screws provided by
the installer.
than storm
window
frame
Storm window
frame
10
A
B
A
B
than vinyl frame
(on some windows)
Wood
Sill
Vinyl frame
3. PREPARE THE AIR CONDITIONER
A. Install the top mounting rail with 4 Type A
screws (AHTR10 / AHTR12 / AHTR14) or 3
Type A screws (AHTR08) from the outside of
the case.
Top Mounting rail
B. Apply the weather seals provided to the bottom,
top and sides of the window to the seal around
the perimeter of the air conditioner.
Cut and apply
weather strip to
front and bottom
edge of window
frame.
Cut and apply
weather strip to
back edge of
the window sill.
C. Slide the side curtain panels into the side panel
rails.
D. Slide left and right side curtain frames into top
and bottom rails. Make sure that side curtains
snap into side of the frames.
Bottom
mounting
rail
Cut and apply
a weather strip
to side of the
curtain frame
(one on each
side).
Snap curtain
into frame
49-5000581 Rev. 2