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INSTALLATION
WALL MOUNTING INFORMATION
1. Two holes for the supply and return air openings
must be cut through the wall as shown in Figures
3A and 3B on pages 8 and 9.
2. On wood frame walls, the wall construction must
be strong and rigid enough to carry the weight of
the unit without transmitting any unit vibration.
3. Concrete block walls must be thoroughly inspected
to insure that they are capable of carrying the
weight of the installed unit.
MOUNTING THE UNIT
1. These units are secured by wall mounting brackets
which secure the unit to the outside wall surface at
both sides. A bottom mounting bracket, attached
to skid for shipping, is provided for ease of
installation, but is not required.
2. The supply air duct flange and the first 3 feet of
supply air duct require a minimum of 1/4 inch
clearance to combustible material for model series
W3R/LV, W5R/LV and W6R/LV. However, it is
generally recommended that a 1-inch clearance is
used for ease of installation and maintaining the
required clearance to combustible material. See
Figures 3A and 3B for details on opening sizes.
WARNING
Failure to provide the 1/4 inch clearance
between the supply duct and a combustible
surface for the first 3 feet of duct can result in
fire causing damage, injury or death.
3. Locate and mark lag bolt locations and bottom
mounting bracket location. See Figures 3A and
3B.
4. Mount bottom mounting bracket.
5. Hook top rain flashing, attached to front-right of
supply flange for shipping, under back bend of top.
Minimum Clearances Required to
Combustible Materials
SUPPLY AIR DUCT
MODELS
FIRST THREE FEET
W3R/LV2
1/4"
W5R/LV2
1/4"
W6R/LV2
Manual 2100-615A
Page
6 of 24
6. Remove packaged control panel door from return
opening. Use the instructions in the package
to mount the door on the unit after it has been
attached to the wall (Step #7). Disregard this step
if already supplied with outer control panel door.
7. Position unit in opening and secure with 5/16 lag
bolts; use 7/8 inch diameter flat washers on the
lag bolts.
8. Secure rain flashing to wall and caulk across entire
length of top. See Figures 3A & 3B.
9. For additional mounting rigidity, the return air
and supply air frames or collars can be drilled
and screwed or welded to the structural wall itself
(depending upon wall construction). Be sure to
observe required clearance if combustible wall.
10. On side-by-side installations, maintain a minimum
of 20 inches clearance on the control panel side of
the unit to allow access to control panel and heat
strips, and to allow proper airflow to the outdoor
coil. Additional clearance may be required to meet
local or national codes.
Clearances Required for Service Access
and Adequate Condenser Airflow
MODELS
W3RV2
W3LV2
W5RV2, W6RV2
W5LV2, W6LV2
NOTE: For side by side installation of two (2) W*RV models there
must be 20" between units. This can be reduced to 15" by using
a W*LV model (left side compressor and controls) for the left unit
and W*R (right side compressor and controls) for right unit.
See Specification Sheet.
CABINET
0"
0"
LEFT SIDE
RIGHT SIDE
15"
20"
20"
15"
20"
20"
20"
20"
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