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7. WALL MOUNTING INFORMATION
1. Two holes for the supply and return air
openings must be cut through the wall as
detailed in Figure 4.
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.
8. 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 is provided for ease of installation but
is not required.
CAUTION
If the bottom bracket is used, be certain the
bracket is secured to the outside wall surface
in a way sufficient to support the entire weight
of the unit during installation until side
mounting brackets are secured.
2. The unit itself is suitable for 0 inch clearance,
but the supply air duct flange and the first 3
feet of supply air duct require a minimum of
one inch clearance to combustible material. If
a combustible wall, use a minimum or 12" x
32" dimensions for sizing. See Figures 6 and 7
for details.
WARNING
Failure to provide the one inch clearance
between the supply duct and a combustible
surface for the first three feet of duct can result
in fire causing damage, injury or death.
3. Locate and mark lag bolt locations and bottom
mounting bracket location.
4. Mount bottom mounting bracket.
5. Hook top rain flashing under back bend of top.
Top rain flashing is shipped secured to the right
side of the back.
6. Position unit in opening and secure with 5/16
lag bolts; use 7/8 inch diameter flat washers on
the lag bolts.
7. Secure rain flashing to wall and caulk across
entire length of top. See Figure 4.
8. On side by side installations, maintain a
minimum of 20 inches clearance on right side
to allow access to control panel and burner
compartment, and to allow proper airflow to the
outdoor coil. Additional clearance may be
required to meet local or national codes.
Manual 2100-365
Page 7
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