Page 21
FIGURE 23
TOP VIEW
WALL TERMINATION
(22G44) LB−49107CD for 2 (50.8) Venting
(44J40) LB−65701A for 3 (76.2) Venting
Inches(mm)
OUTSIDE WALL
1/2 (12.7) FOAM INSULATION
IN UNCONDITIONED SPACE
Optional Turndown
Shown
(Intake Only)
FIGURE 24
12 (305) ABOVE
AVERAGE SNOW
ACCUMULATION
EXHAUST
EXHAUST
TERMINATION
INTAKE
TERMINATION
INTAKE
Inches (mm)
CONCENTRIC ROOFTOP TERMINATION
(60G77) LB−49107CE for G32−75 Units Only
(33K97) LB−87942 for G32−100 & −125 Units Only
IMPORTANT
For Canadian Installations Only:
In accordance to CAN/CGA−B149.1 and .2, the
minimum allowed distance between the combus
tion air intake inlet and the exhaust outlet of other
appliances shall not be less than 12" (305mm).
FIGURE 25
EXHAUST
EXHAUST
TERMINATION
INTAKE
TERMINATION
INTAKE
12 (305) Min.
above grade.
CONCENTRIC WALL TERMINATION
(60G77) LB−49107CE for G32−75 Units Only
(33K97) LB−87942 for G32−100 & −125 Units Only
Inches
(mm)
FIGURE 26
12 (305) ABOVE
AVERAGE SNOW
ACCUMULATION
UNCONDITIONED
SPACE
12 (305) MIN. for 2 (51)
20 (508) MAX. for 3 (76)
8 (203)
MIN.
1/2 (13) FOAM
INSULATION
1/2 (13) FOAM
INSULATION IN
UNCONDITIONED
SPACE
PROVIDE SUPPORT
FOR INTAKE AND
EXHAUST LINES EVERY
36 (914)
OUTSIDE WALL
Inches(mm)
SIDE VIEW
WALL RING TERMINATION
(15F74) LB−49107CB for 2" (51) Venting
9 − Position termination ends so they are free from any ob
structions and above the level of snow accumulation
(where applicable). Termination ends must be a mini
mum of 12" (305mm) above grade level. Do not point
into window wells, stairwells, alcoves, courtyard areas
or other recessed areas. Do not position termination
ends closer than 12" below roof eaves or above a walk
way. Since the G32 is a certified direct vent, Category
IV gas furnace, the location of the termination is limited
by building codes. In the absence of local codes, refer
to the current National Fuel Gas Code ANSI Z223−1 in
U.S.A., and current standards CAN/CGA−B149.1 /.2 of
the Natural Gas and Propane Installation Instructions in
Canada for details. The termination should be at least
12" (305mm) from any opening through which flue
products could enter the building.