Page 22
8 - If intake and exhaust piping must be run up a side wall
to position above snow accumulation or other obĆ
structions, piping must be supported every 3 ft. (.91m)
as shown in figure 33. Refer to figures 31 and 32 for
proper piping method. WTK wall termination kit must
be extended for use in this application. See figure 36
or use kit WTKX shown in figure 37. When exhaust
and intake piping must be run up an outside wall, the
exhaust piping is reduced to 1-1/2" (38mm) after the
final elbow. The intake piping may be equipped with a
90 elbow turndown. Using turndown will add 5ft.
(1.5m) to the equivalent length of the pipe.
FIGURE 28
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 29
12 (305) ABOVE
AVERAGE SNOW
ACCUMULATION
EXHAUST
EXHAUST
TERMINATION
INTAKE
TERMINATION
INTAKE
Inches (mm)
CONCENTRIC ROOFTOP TERMINATION
(60G77) LB-49107CE for G26-50 & -75 Units Only
(33K97) LB-87942 for G26-100 & -125 Units Only
IMPORTANT
For Canadian Installations Only:
In accordance to CAN/CGA-B149.1 and .2, the
minimum allowed distance between the combusĆ
tion air intake inlet and the exhaust outlet of other
appliances shall not be less than 12" (305mm).
FIGURE 30
EXHAUST
EXHAUST
TERMINATION
INTAKE
TERMINATION
INTAKE
12 (305) Min.
above grade.
CONCENTRIC WALL TERMINATION
(60G77) LB-49107CE for G26-50 & -75 Units Only
(33K97) LB-87942 for G26-100 & -125 Units Only
Inches (mm)
FIGURE 31
*This reducer is not necessary for G26-50 units using 1-1/2" venting.
See venting table on page 6 for maximum venting lengths with this
arrangement.
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 obĆ
structions and above the level of snow accumulation
(where applicable). Termination ends must be a miniĆ
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 walkĆ
way. Since the G26 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.
To Next Page
Loading...
Need help?
General
