All installations and services must be performed by qualified service personnel.
19
NOTICE: For models CDB1-100 and CDB1-125 used in horizontal applications,
immediately transition from 2-inch to 3-inch diameter pipe by installing the 3-inch x 2-inch
diameter PVC reducer just outside the furnace casing. The remainder of the venting system
leading away from the furnace
must
be composed of 3-inch diameter PVC pipe and
pipefittings
only
. Refer to item E in Figure 8.
b. After preparation of the internal 2-inch diameter PVC pipe sections, put a thin bead of a
silicone rubber type sealant around the outlet flange of the inducer. Slip the 2-inch diameter
PVC elbow (for the model series CDB1 in horizontal applications, a 2-inch diameter PVC tee)
over the inducer outlet flange. Drive one (1) #8 x 3/4 inch sheet metal screw with black
protective coating (supplied with furnace) through the elbow and into the outlet flange of the
inducer to secure the elbow in place.
Figure 9: Typical Internal
Vent Piping Arrangement
for the Furnace Model
Series CHB1.
Figure 10: Typical Internal
Vent Piping Arrangement
for the Furnace Model
Series CDB1-100 / -125.
Figure 11: Typical Internal
Vent Piping Arrangement
for the Furnace Model
Series CDB1-100 / -125 in
RH Horizontal
Applications.