ICP 8MPT Installation Insrtuctions page 7

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Horizontal
If you purchased a multi-position furnace, it can be installed hori-
zontally in an attic, basement, crawl space, alcove, or suspended
from a ceiling in a basement or utility room in either a right or left
airflow position. (see Figure 3)
Horizontally installed furnaces may be vented out the top of the
unit or out the side facing up. See "Side Venting" for instructions
to rotate the vent to the side.
The minimum clearances to combustibles MUST be maintained
between the furnace and adjacent construction, as shown in
Figure 1. ONLY the corner of the cabinet is allowed to contact the
rafters Figure 3. All other clearances MUST be observed as
shown in Figure 1.
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_iii_ i_i Typical Horizontal Installation
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If the furnace is to be suspended from the floor joists in a crawl
space or the rafters in an attic, it is necessary to use steel pipe
straps or an angle iron frame to attach the furnace. These straps
should be attached to the furnace bottom side with sheet metal
screws and to the rafters or joists with bolts. The preferred method
is to use an angle iron frame bolted to the rafters or joists.
If the furnace is to be installed ground level in a crawl space, con-
sult local codes. A concrete pad 1"to 2" (25.4 to 50.8mm) thick is
recommended.
24" (610 mm) is recommended between the front of the furnace
and adjacent construction or other appliances. This should be
maintained for service clearance. 30" (762mm) is required to re-
move furnace.
Keep all insulating materials clear from Iouvered door. Insulating
materials may be combustible.
The horizontal furnaces may be installed directly on combustible
wood flooring or supports, however, it is recommended for further
fire protection cement board or sheet metal is placed between the
furnace and the combustible wood floor and extend 12" (305 mm)
beyond the front of the furnace louver door. (This is a recommen-
dation only, not a requirement).
This furnace MUST NOT be installed directly on carpeting, tile or
other combustible material other than wood flooring or supports.
Downflow
FIRE HAZARD
Failure to install furnace on noncombustible
subbase could result in personal injury, death
and/or property damage.
Place furnace on noncombustible subbase on
downflow applications, unless installing on
noncombustible flooring.
The Multi-position furnace (*8MPT or*8MPV) may be installed in
a downflow configuration, (see Figure 4). The minimum clear-
ances to combustion MUST be maintained between the furnace
and adjacent constructions, as shown in Figure 1.
In addition to clearances in Figure 1, clearance for the vent pipe
must be considered.
A subbase for combustible floors MUST be used when the furnace
is installed as a downflow on combustible material. See "Duct-
work and Filter" (Downflow Section). The outlet flange must be
bent flat for downflow installation.
When installing a four-position furnace in the downflow position,
the logo is to be repositioned so that it is right side-up as follows:
T8MPT and T8MPV Model Numbers
1. Find the door hardware kit that is stored in the furnace and
save it.
2. Carefully remove logo from the outside of burner compart-
ment door and save it.
3. Carefully remove two small plug buttons from outside of
blower compartment door and save them.
4. Remove two thumbscrews from blower compartment door.
Save the two thumbscrews.
5. Install two thumbscrews in holes at other end of blower
compartment door from where thumbscrews were re-
moved.
6. Install new strip of rubber gasket on inside of blower
compartment door on edge that does not already have a
gasket.
7. Install logo retainer pins into holes in blower compartment
door from which plug buttons were removed.
8. Install plug buttons into holes in burner compartment door
from which logo was removed.
9. Install blower compartment door on furnace with bevel
edge and logo at top.
10. Install burner compartment door on furnace with bevel
edge at bottom.
C8MPT, C8MPV, H8MPT, and H8MPV Model Numbers
1. Carefully remove logo from burner compartment door and
save it.
2. Turn the logo rightside-up, and install the logo retainer pins
into holes in burner compartment door
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Specifications are subject to change without notice
441 01 202301