Page 21
FIGURE 25
FIELD−FABRICATED WALL TERMINATION OR
(15F74) WALL RING TERMINATION KIT
See venting table 5 for maximum venting lengths with this
arrangement.
* Use wall support every 24" (610 mm). Use two wall supports if
extension is greater than 24" (610 mm) but less than 48" (1219 mm).
NOTE − One wall support must be 6" (152 mm) from top of each pipe
(intake and exhaust).
2" (51mm)
Vent Pipe
3" (76mm)
Vent Pipe
A
−Minimum clearance
above grade or average
snow accumulation
B
−Maximum horizontal
separation between
intake and exhaust
C
−Minimum from
end of exhaust to
inlet of intake
D
−Maximum exhaust
pipe length
E
−Maximum wall support
distance from top of each
pipe (intake/exhaust)
12" (305MM)
12" (305MM)
6" (152MM)
6" (152MM)
8" (203MM)
8" (203MM)
12" (305MM)
20" (508MM)
6" (152MM)
6" (152MM)
NOTE − FIELD−PROVIDED
REDUCER MAY BE
REQUIRED TO ADAPT
LARGER VENT PIPE SIZE
TO TERMINATION
D
B
C
SIZE TERMINATION
PER TABLE 7
1/2" (13mm) ARMAFLEX
INSULATION IN UN-
CONDITIONED SPACE
STRAIGHT
APPPLICATION
B
C
A
D
* WALL
SUPPORT
1/2" (13mm) ARMAFLEX INSULATION
IN UNCONDITIONED SPACE
E
EXTENDED
APPLICATION
A
FIGURE 26
FIELD−FABRICATED WALL TERMINATION OR
(15F74) WALL RING TERMINATION KIT
With INTAKE ELBOW
See venting table 5 for maximum venting lengths with this
arrangement.
* Use wall support every 24" (610 mm). Use two wall supports if
extension is greater than 24" (610 mm) but less than 48" (1219 mm).
NOTE − One wall support must be 6" (152 mm) from top of each pipe
(intake and exhaust).
2" (51mm)
Vent Pipe
3" (76mm)
Vent Pipe
12" (305MM)
12" (305MM)
6" (152MM)
6" (152MM)
6" (152MM)
12" (305MM)
20" (508MM)
6" (152MM)
6" (152MM)
6" (152MM)
A
−Minimum clearance
above grade or average
snow accumulation
B
−Maximum horizontal
separation between
intake and exhaust
C
−Minimum from
end of exhaust to
inlet of intake
D
−Maximum exhaust
pipe length
E
−Maximum wall support
distance from top of each
pipe (intake/exhaust)
NOTE − FIELD−PROVIDED
REDUCER MAY BE
REQUIRED TO ADAPT
LARGER VENT PIPE SIZE
TO TERMINATION.
D
B
C
SIZE TERMINATION
PER TABLE 7
1/2" (13mm) ARMAFLEX
INSULATION IN UN-
CONDITIONED SPACE
STRAIGHT
APPPLICATION
B
C
D
* WALL
SUPPORT
1/2" (13mm) ARMAFLEX INSULATION
IN UNCONDITIONED SPACE
E
EXTENDED
APPLICATION
A
A
