Minimum Installation - Ducane CMP A Series Installation Instructions Manual

LOCATION / PLACEMENT
Site Selection: This furnace may be located in an attic, closet, basement, crawl space, alcove, garage or suspended from the ceiling of a
utility room or basement. Select a location that will meet all requirements for safety, clearances, ventilation and combustion air, ductwork
design, gas piping, electrical wiring and venting.
Clearances: The following minimum clearances, or greater, must be provided between the furnace and adjacent construction.
Table I. 2 MINIMUM INSTALLATION CLEARANCES
"UPFLOW" POSITION "HORIZONTAL (LEFI')" POSITION
Suitable for alcove or closet installation';"on combustible flooring Suitable for attic, alcove or closet installationt on combustible
at minimum clearance from adjacent consWuction not less that the flooring at minimum clearance from adjacent construction not less
following: that the following:
* Line contact only permissible between lines formed by intersection
of the top and two sides of the furnace jacket and building joist,
studs, or framing.
Top Sides Back Front Vent ;
2" 1" 1" 3" 0"
t For closet installation see Air for Combustion and Ventilation.
The furnace should not be connected to an operational
chimney. The furnace should also be located as near to the center
of the air distribution system as possible, and should be installed
level.
This furnace may be installed on non-combustible flooring or
on wood flooring, however, it must not be installed directly on
carpeting, tile or any other combustible material.
In a horizontal position, line contact is only permissible
between lines formed by the intersection of the furnace top and the
front and bank sides and building joists, studs or framing (See
Figure 2.2).
Figure 2.2 LEVELING AND ATTIC INSTALLATION
SHOWING LINE CONTACT
ROOF LINE CONTAC_r O¢4Ly PERMISSIBLE
BETV_I_I TOP CORNERS OF FURNACE
N4D 8UILDII_ JOISTS, :S'_JOS OR
KEEP ALL INSULATING MATERIAL
CLEAR OF FURNACE. Ill'JIlTING
MATERIt_I.S MAy BE COCdI_JS11BLE.
\
Furnace must not lean back. It must be level or tilt up to
2* to the front (See Figure 2.2).
A clearance of at least 30" should be provided at the front of
the unit for servicing. For attic installations, the passageway and
servicing area adjacent to the furnace should be floored.
WARNING
If furnace is tilted back condensate will collect
in the secondary heat exchanger which will
result in improper combustion, fire hazard, or
other unsafe conditions which could result in
property damage_ personal injury or death.
If the furnace is to be installed in a crawl space, consult local
codes. (Use of a concrete pad 1" to 2" thick is recommended.) If
the furnace is to be suspended from the ceiling, it will be necessary
to use steel pipe straps around each end of the furnace. These
straps should be attached to the furnace with sheet metal screws
and to the rafters with bolts. The furnace may also be suspended
by using an angle iron frame bolted to the rafters. (See Table 1.20
for size and weight of furnace.) Care must be taken to allow for
service access.
If a furnace is to be installed in a residential gara_, it must be
installed so the burners and the ignition source are located not less
than 18" above the floor and the furnace must be located or
protected to avoid physical damage by vehicles.
WARNING
If this furnace is installed in a garage and/or
any unconditioned space, a thermostatically
controlled heat tape must be installed along
the entire length of the condensate drain in
the unconditioned space. Any blockage of
the condensate drain will result in improper
combustion, fire hazard, or other unsafe
conditions that could result in property
damage, personal injury or death.
20246506 Issue 9939 Page 2 of 22