Desa CD36RN - Page 14

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116035-01J14
Figure 16 - Installing Inner Wall Firestop
VENTING INSTALLATION
Continued
Figure 17 - Typical Horizontal
Termination Cap Mounting with
Additional Siding Standoff Installed
Siding Standoff
Screws
High Wind
Termination
Apply
Mastic to
Outside
Edge of
Standoff
Exterior Wall with Vinyl Siding
11
1
/
2
" x 11
1
/
2
"
Framed Opening
Maintain 1"
Minimum Air
Space Around
Outer Pipe When
Penetrating a Wall
Minimum Pipe
Overlap 1
1
/
4
"
Wall
Firestop
Direct-Vent
Pipe
WARNING: Never run vent
downward as this may cause
  

-
   



Figures 18 through 25 show different con-
gurations and alternatives for venting with
horizontal termination. Each gure includes
a chart with critical minimum and maximum
dimensions which MUST be met.
IMPORTANT: If using a venting conguration
of only horizontal venting with no vertical run,
a 1/4" rise for every 12" of run toward the
termination is required.

Recommended Applications for Rear Vent
Model (V)CD36R:
• Installation using cabinet surrounds
• Through wall using round or square
termination (up to a maximum of 18" of
horizontal pipe)
• Corner installation (Using one 45° elbow
and a maximum of 18" of horizontal pipe).
Figure 18 - Horizontal Termination
Congureation for Flush Installation
(Model (V)CD36R)
TO
H
Inner Wall
Firestop
Vent
Cap
Pipe
Section
Horizontal
Square
Termination
Wall
Firestop
Straight/Adjustable
Pipe 18" Max.

 
25
1
/
2
" Min. 22" Max
NOTICE: Do not seal termination

   
