Manual 2100-423C
Page
8 of 21
INSTALLATION INSTRUCTIONS
WALL MOUNTING INFORMATION
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.
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 unit being installed.
4. The unit is suitable for 0 inch clearance from the
unit, and from the supply and return air ducts.
MOUNTING THE UNIT
1. Two holes for the supply and return air openings
must be cut through the wall as shown in Figure 3.
2. Locate and mark lag bolt locations and bottom
mounting bracket location, if desired. See Figure 3.
3. Mount bottom mounting bracket, if used.
4. Hook top rain flashing under back bend of top. Top
rain flashing is shipped secured to the right side of
the back.
5. Position unit in opening and secure with 5/16 lag
bolts. Use 5/16" diameter flat washers on the lag
bolts.
6. Secure rain flashing to wall and caulk across entire
length of top. See Figure 3.
7. 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.
8. On side-by-side installations, maintain a minimum
of 20 inches clearance on right side of unit to allow
access to control panel and heaters, and to allow
proper airflow to the outdoor coil. Additional
clearance may be required to meet local or national
codes.
