Filter
Top Products
Manual 2100-192
Page 7
INSTALLATION INSTRUCTIONS
WARNING
Fire hazard can result if 1/4 inch clearance to
combustible materials for supply air duct is not
maintained. See Figure 3.
WALL MOUNTING INFORMATION
1. Two holes, for the supply and return air openings,
must be cut through the wall as shown in Figure 3.
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 installing 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 is provided for
ease of installation, but is not required.
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 1/4 inch clearance to
combustible material. If a combustible wall, use a
minimum of 28-1/2" x 8-1/2" dimensions for sizing.
However, it is generally recommended that a 1 inch
clearance is used for ease of installation and
maintaining the required clearance to combustible
material. The supply air opening would then be 30" x
10". See Figures 3 and 4 for details.
3. Locate and mark lag bolt locations and bottom
mounting bracket location. See Figure 3.
4. Mount bottom mounting bracket, if used.
5. Hook top rain flashing under back bend of top. Top
rain flashing is shipped secured to the right side of the
back.
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.
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 3.
8. 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.
9. On side by side installations, maintain a minimum of
20 inches clearance on right side to allow access to
heat strips and control panel and to allow proper
airflow to the outdoor coil. Additional clearance may
be required to meet local or national codes.
TOP OUTLET ONLY
1. Remove airframe angles from the back of the unit.
2. Coat angles with two 1/8" beads of silicone as shown.
Silicone is shipped in the control panel. See Figure 6.
3. Secure angles to the top of the unit with 14 screws
provided. Use of prepunched holes provided. Do not
relocate. See Figure 6.
4. After installation duct work, seal around airframe and
duct work to provide a rain tight seal.
5. It is strongly recommended, but not required, that this
unit be installed under a soffit area large enough to
shield the top of the unit. See Figure 7.
WIRING — MAIN POWER
Refer to the unit rating plate for wire sizing information
and maximum fuse or “HACR Type” circuit breaker
size. Each outdoor unit is marked with a “Minimum
Circuit Ampacity”. This means that the field wiring used
must be sized to carry that amount of current. Depending
on the installed KW of electric heat, there may be two
field power circuits required. If this is the case, the unit
serial plate will so indicate. All models are suitable only
for connection with copper wire. Each unit and/or wiring
diagram will be marked “Use Copper Conductors Only”.
These instructions must be adhered to. Refer to the
National Electrical Code (NEC) for complete current
carrying capacity data on the various insulation grades
of wiring material. All wiring must conform to NEC and
all local codes.