Reznor EEDU Unit Installation Manual - Manual (Page 13)

Form I-EEDU, P/N 150492 R6, Page 13
FIGURE 10A - Attaching Double-Wall (Type B) Pipe to a Vent Cap
Figure 10A - STEP 1
Place a continual 3/8” bead of sili-
cone sealant around the circumfer-
ence of the vent cap collar. This will
prevent any water inside the vent
cap from running down the double-
wall pipe.
Figure 10A - STEP 2
Secure the vent cap to the
double wall pipe by drilling and
inserting a 3/4” long sheetmetal
screw into the vent cap collar.
Do not over tighten screw.
Insert the collar on the vent cap inside
the inner wall of the double-wall pipe.
Insert as far as possible. Add additional
silicone sealant to fully close any gaps
between the vent cap and the double
wall pipe. This is necessary to prevent
water from entering the double wall
pipe.
Figure 10A - STEP 3
Do STEP 2
immediately
following
STEP 1.
Figure 10B - STEP 1
On the single-wall pipe or Category
III pipe, place a continual 1/4” bead
of silicone sealant around the cir-
cumference.
Do STEP 2 immediately following
STEP 1.
Figure 10B - STEP 2
Insert the pipe prepared with
sealant into the inner pipe of the
double-wall pipe until the bead of
sealant contacts the inner pipe
creating a sealed joint.
Figure 10B - STEP 3
Spaced equally around the double-
wall pipe, drill three small holes
below the sealant ring. Insert 3/4 inch
long sheetmetal screws to secure the
joint. Do not overtighten screws.
Single-
Wall
with
Sealant
Double-
Wall
Pipe
Single-
Wall Vent
Pipe
FIGURE 10B - Attaching Double-Wall (Type B) Pipe to a Single-Wall or Category III Vent Pipe
FIGURE 11A - Vertical Vent Terminal
Roof -
pitched
from
0 to 45°
A clearance thimble is required
when flue pipe extends through
combustible materials.
Follow the requirements of the thimble or vent pipe manufacturer.
Vertical flue extension must
be 6” (152mm) higher than
anticipated snow depth but
no less than 2 ft (610mm)
above the roof. Vertical pipe
extension must be insulated.
Roof Flashing
Parapet or
Adjoining Building
6 ft (1.8M)
minimum
Reznor
Option CC1
Vent Cap
Roof -
pitched
from
0 to 45°
A clearance thimble is
required when flue pipe
extends through combus-
tible materials. Follow the
requirements of the double-
wall pipe manufacturer.
*Follow the instruc-
tions in FIGURE 10B
to join the double-
wall vent terminal
section to the vent
run and to seal the
connection.
Follow the instructions
in FIGURE 10A to attach
the vent cap to the double-
wall vent terminal pipe.
Vertical flue extension
must be 6” (152mm)
higher than anticipated
snow depth but no less
than 2 ft (610mm)
above the roof.
Roof Flashing
6” (152mm)
minimum
Parapet or
Adjoining Building
6 ft (1.8M)
minimum
Double-Wall Pipe*
Reznor
Option CC1
Vent Cap*
Single-Wall or Category III Vent Run
and Single-Wall Terminal End
Single-Wall or Category III Vent Run
and Double-Wall Terminal End