Bryant 4-WAY MULTIPOISE 359AAV - Manual (Page 29)

29
EXHAUST
INLET
GRADE LEVEL
SNOW LEVEL
OR
8” (203.2mm)* MIN.
20’ (6.1m) MAX
*18 in. (457.2mm) Minimum for
cold climates [sustained 0
_F
(- 17 _C) and below for 24 or
more consecutive hours]
8” (203.2mm)
MIN.
12 ” (304.8mm)
MIN.
A07716
Fig. 22 -- Sidewall Termination with Exterior Risers to Get
Above Snow Level or Grade Level
Using Exterior Risers
1. Install elbows and pipe to form riser as shown in Fig. 22.
2. Secure vent pipe to wall with galvanized strap or other rust
resistant material to restrain pipe from moving.
3. Insulate pipe with Armaflex or equivalent moisture resist-
ant closed cell foam insulation or fiberglass insulation if
boxed in and sealed against moisture.
Vent Termination Shielding
Under certain wind conditions some building materials may be
affected by flue products expelled in close proximity to
unprotected surfaces. Sealing or shielding of the exposed surfaces
with a corrosion resistant material (such as aluminum sheeting)
may be required to prevent staining or deterioration. The
protective material should be attached and sealed (if necessary) to
the building before attaching the vent terminal.
OVERHANG
12 in. (304.8mm) MIN .
12 in. (304.8mm) MIN. Ground
Level OR Snow Level
INLET
EXHAUST
90 °
Same Joist
Space
FRONT VIEW SIDE VIEW
12 in. (304.8mm)
25- 23- 73
A07699
Fig. 23 -- Recommended Alternate Installation
for Sustained Cold Weather
(0_F & below for 24 or more consecutive hours)
25--00--06
A
A
B
A = 12 ″ (304.8mm) Above roof or snow accumulation level
B = 8 ″ (203.2mm) Min., 20′ (6.1m) Maximum, except in areas
with extreme cold temperatures [sustained 0 °F(--17°C) and
below for 24 or more consecutive hours], the 18 ″ (457.2mm)
Min.
A07717
Fig. 24 -- Rooftop Termination
359AA
V