Install Instructions
B. Moved the Angled Support Arms
toward the exterior wall until the feet
touch the wall. Place the level on the
Main Supports of the bracket and
adjust the Support Arms that it is
tilted slightly downward toward the
outside of the window. This will allow
for proper condensate drainage of the
unit. Please refer to Fig. 8.
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mrcool.com
Installation Instructions
For Vinyl Type Windows with a Lipped Seal
A2. Secure the bracket to the windowsill by drilling 1/8 in (3.175 mm) pilot holes through the holes
of the vertical portion of the bracket and into the windowsill, refer to the arrows in the image below.
Then, install the supplied Type A 1/2” screws (12.7 mm) into the vertical portion of the bracket and
windowsill, as shown in Fig. 6 below.
For Wooden Type Windows with a Flat Seal
A3. Secure the bracket to the windowsill by drilling 1/8 in (3.175 mm) pilot holes through the holes
of the bracket and into the windowsill, refer to the arrows in the image below. Then, install the
supplied Type A 1/2” screws (12.7 mm) into the vertical portion of the bracket and windowsill, and
the Type A 1” screws (25.4 mm) into the horizontal portion of the bracket and base of the
windowsill, as shown in Fig. 7 below.
Fig. 6
Use Type A
1/2” Screw
Fig. 7
Use Type A
1” Screw
Use Type A
1/2” Screw
Use Type A
1/2” Screw
Use Type A
1” Screw
Depending on the
level used, place at
either location below
to check level.
Fig. 8
Level Reading
With bracket
tilted slightly
downward.
Use Type A
1/2” Screw










