Modine Manufacturing HD Series Installation And Service Manual page 9

INSTALLATION - VENTING
• For single wall vent pipe and 10' or greater horizontal
distance to any portion of a building, the vent must terminate at
least 3' (2' for non-residential installations) above the highest
point where it passes through a roof of a building and at least 2'
higher than any portion of a building within a horizontal distance
of 10' (see Figure 9.1).
Figure 9.1 - Vertical Vent Termination for Single Wall
Vent Pipe and Greater Than 10' Horizontally From
Adjacent Wall or Building
GREATER THAN 10 FEET
TO WALL OR ADJOINING
BUILDING
LISTED
TERMINAL
3 FEET MIN*
GREATER
THAN 10 FEET
HEIGHT ABOVE
ANY ROOF SURFACE
WITHIN 10 FEET
USE LISTED THIMBLE
THROUGH ROOF
* 2 FEET MINIMUM FOR
NON-RESIDENTIAL
INSTALLATIONS, BUT
SIZE ACCORDING TO
EXPECTED SNOW DEPTH
5 FEET MIN
ROOF FLASHING
4" MIN
USE LISTED THIMBLE
THROUGH CEILING
TEE WITH DRIP LEG
AND CLEANOUT CAP
DOWNWARD SLOPE
12" MIN
1/4" PER FOOT
RECOMMENDED
TOWARD DRIP LEG
LISTED TERMINAL
10 FEET
2 FEET MIN*
3 FEET MIN*
ROOF FLASHING
4" MIN
USE LISTED THIMBLE
THROUGH CEILING
TEE WITH DRIP LEG
AND CLEANOUT CAP
DOWNWARD SLOPE
12" MIN
1/4" PER FOOT
RECOMMENDED
TOWARD DRIP LEG
• For single wall vent pipe and less than 10' horizontal distance
to any portion of a building, the vent must terminate 2' higher
than any portion of that building (see Figure 9.2).
Figure 9.2 - Vertical Vent Termination for Single Wall
Vent Pipe and 10' or Less Horizontally From Adjacent
Building or Building
10 FEET OR LESS TO
WALL OR ADJOINING
2 FEET MIN*
HEIGHT ABOVE ANY
PORTION OF WALL OR
ADJOINING BUILDING
WITHIN 10 FEET
HEIGHT ABOVE
ANY ROOF SURFACE
WITHIN 10 FEET
USE LISTED THIMBLE
THROUGH ROOF
* 2 FEET MINIMUM FOR
NON-RESIDENTIAL
INSTALLATIONS, BUT
SIZE ACCORDING TO
EXPECTED SNOW DEPTH
B10. Once venting is complete, proceed to the section titled
"Installation – Gas Connections".
6-583.12
BUILDING
LISTED
TERMINAL
5 FEET MIN
3 FEET MIN*
ROOF FLASHING
4" MIN
USE LISTED THIMBLE
THROUGH CEILING
TEE WITH DRIP LEG
AND CLEANOUT CAP
DOWNWARD SLOPE
12" MIN
1/4" PER FOOT
RECOMMENDED
TOWARD DRIP LEG
10 FEET OR
LESS LISTED TERMINAL
2 FEET MIN*
3 FEET MIN*
ROOF FLASHING
4" MIN
USE LISTED THIMBLE
THROUGH CEILING
TEE WITH DRIP LEG
AND CLEANOUT CAP
DOWNWARD SLOPE
12" MIN
1/4" PER FOOT
RECOMMENDED
TOWARD DRIP LEG
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