Modine Manufacturing HD Installation And Service Manual page 6

INSTALLATION
Figure 6.1
Venting Through Combustible Wall or Roof
Single Wall Vent Pipe
Listed
Terminal
Flashing
Listed
Thimble
Single Wall Vent Pipe Terminating
with Double wall vent pipe. ➁
Single Wall Vent Pipe
Listed
Thimble
➀
See Instructions for attaching single wall pipe to double wall pipe (page 6)
6
Double Wall Vent Pipe ➀
Listed
Terminal
Flashing
Clearance Specified
by Type B Vent Mfg.
Table 6.1
Minimum Height from Roof to
Lowest Discharge Opening
Rise Roof Pitch Min Height
X (in) H (ft) ➀
0-6 Flat to 6/12
6-7 6/12 to 7/12
7-8 7/12 to 8/12
8-9 8/12 to 9/12
9-10 9/12 to 10/12
10-11 10/12 to 11/12
11-12 11/12 to 12/12
12-14 12/12 to 14/12
14-16 14/12 to 16/12
16-18 16/12 to 18/12
18-20 18/12 to 20/12
20-21 20/12 to 21/12
Figure 6.2
Vertical Venting Through Flat Roof
8' Min
2' Min
5' Min
Downward
Slope / " towards drip leg.
1
4
Drip Leg
Figure 6.3
Vertical Venting Through Sloped Roof
Listed
Terminal
Downward
Slope / " towards drip leg.
1
4
Drip Leg
1.00
1.25
1.50
2.00
2.50
3.25
4.00
5.00
6.00
7.00
7.50
8.00
Listed Terminal
4" Min
12" Min
4" Min
12" Min