8
Clearances and Accessibility
NOTE:
For servicing or cleaning, a 24” front clearance is
required. Unit connections (electrical, flue and drain) may
necessitate greater clearances than the minimum clearanc-
es listed above. In all cases, accessibility clearance must
take precedence over clearances from the enclosure where
accessibility clearances are greater.
Clearance in accordance with local installation codes, the
requirements of the gas supplier and the manufacturer’s
installation instructions.
Dégaugement conforme aux codes d’installation locaux,
aux exigences du fournisseur de gaz et aux instructions
d’installation du fabricant.
TOP
B1-VENT SINGLE
(PLENUM)
1"
6"
1"
3"
0"
1"
VENT
SIDES
FRONT
BACK
Top clearance for horizontal configuration - 1”
Table 1
Installations must adhere to the clearances to combustible
materials to which this furnace has been design certified. The
minimum clearance information for this furnace is provided
on the unit’s clearance label. These clearances must be
permanently maintained. Clearances must also accommodate
an installation’s gas, electrical, and drain line connections.
NOTE:
In addition to the required clearances to combustible
materials, a minimum of 24” service clearance must be
available in front of the unit.
Installation Positions
An upflow furnace may be installed in an upright position or
horizontal on either the left or right side panel. Do not install
this furnace on its back. For vertically installed
upflow
furnaces,
return air ductwork may be attached to the side panel(s) and/
or basepan. For
horizontally
installed
upflow
furnaces, return
air ductwork must be attached to the basepan. Contact your
distributor for proper airflow requirements and number of
required ductwork connections. Refer to, “Recommended
Installation Positions” for approproate installation positions,
ductwork connections, and resulting airflow arrangements.
NOTE:
Ductwork must never be attached to the back of the
furnace.
Venting for Horizontal Left or Right
Installations
Always use a B-vent elbow to vent the flue from the top of the
furnace. The inducer cannot be turned due to limited space
in the cabinet. Do not attempt to do this.
Figure 2
Horizontal Installation
Recomended Installation Positions
Figure 3
For
horizontal installations,
insert the
#8 x 5/8 screw
from the
literature package.
Figure 4
