Reznor UDBP Option - Installation - Power Venting - Manual (Page 12)

Form I-UD-V-PV, Page 12
Flex-L brand elbow
attached to the 12”
(305mm) adapter pipe
FIGURE 10 - Extend
vent in any direction
above horizontal
Instructions for
Installing Flex-L
brand Category III
Vent Pipe (cont’d)
FIGURE 11 - Attach
Vent Cap
If using a 4” (102mm) diameter, 12” (305mm) long adapter pipe - Following
the vent pipe manufacturer’s instructions, attach one of the following:
• an elbow in any direction above horizontal, or
• a straight horizontal pipe
c) Follow the pipe manufacturer’s instructions to connect the vent pipe sections
and install the vent pipe run. The length of vent must not exceed the maximum
allowed for the heater being installed.
d) Extend the vent pipe through the wall or roof to the outdoors. An approved
clearance thimble is required when flue pipe extends through combustible
materials. Follow the requirements of the pipe and thimble manufacturer. Be
sure to comply with local and national codes when selecting the vent terminal
location. The vent pipe installer is responsible for following the manufacturer’s
instructions and complying with all applicable codes.
3. Attach the Vent Cap (FIGURE 11)
a) Use a Reznor ® Option CC1 vent cap.
b) Slide the vent cap collar into the vent pipe.
c) Around the end of the vent pipe, drill three evenly spaced 1/8” holes through
the vent pipe and vent cap. Insert sheetmetal screws to secure the vent cap to
the vent pipe.
ADDENDUM,
Section B
(cont’d)
b) Push the adapter pipe or reducer over the flue collar.
c) On the top of the overlap, drill a 1/8” hole and insert a sheetmetal screw to
secure the connection.
2. Run the Vent Pipe
a) Refer to either the residential or commercial/industrial venting instructions in
this manual for vent length requirements.
b) If using a 4” to 3” (102 to 76mm) reducer - Following the vent pipe
manufacturer’s instructions, attach a straight piece of 3” diameter horizontal
pipe or an elbow in any direction above horizontal.
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06/14 (Serial No. Date Code BNF) Form I-UD-V-PV (Version D.1)
®