Reznor RPBL, Installation, Operation And Maintenance Manual

Page: 34 / 76

34 SSCBL-RPBL-IOM (10-22) 149159-C
INSTALLATION—CONTINUED
Venting/Combustion Air Connections (Model SSCBL)—Continued
Vertical Vent Terminal (Option CC2) Installation—Continued
2 . Install vent pipe and combustion air pipe runs:
a . Connect piping to heater in accordance with specifications listed in Specific Venting Requirements: Piping
and Specific Venting Requirements: Venter Outlet and Combustion Air Inlet Connections sections .
b . Seal all joints in accordance with specifications listed in Specific Venting Requirements: Joints and Sealing
section . Due to high temperature considerations, do not enclose exhaust pipe or place pipe closer than 6
inches (152 mm) to combustible material .
c . Extend piping runs close to roof at location selected in step 1 and support piping in accordance with specifications
listed in Specific Venting Requirements: Support section .
NOTE: The vent pipe will extend through the roof after the concentric adapter box is installed. The
indoor combustion air pipe will end at the box.
3 . Cut hole through roof for combustion air pipe .
a . Ensure that location and orientation of concentric adapter box are correct and mark and cut hole .
b . Ensure that hole accommodates 8-inch (203-mm) combustion air pipe . Thimble may be required depending
on building construction and/or local codes . Larger diameter combustion air pipe serves as clearance for vent
pipe on non-combustible construction .
c . When installing system with more than one furnace section, ensure that that there is minimum of 26-1/8 inches
(664 mm) between center lines of each terminal pipe . Prepare one hole per furnace with spacing as shown
in Figure 26 .
Figure 26. Hole Spacing for Two or More Furnaces
4 . Secure longer angles on concentric adapter box brackets (see
Figure 27
) to concentric adapter box .
NOTE: The longer angle of the concentric adapter box bracket has five 7/32-inch holes that allow
the position of the bracket on the box to be adjusted. The shorter angle has three 7/32-inch holes
that allow adjustment to construction.
Figure 27. Concentric Adapter Box Brackets