14
Table 3
Pipe Diameter Table
Single Piping ONLY
40,000, 50,000, 60,000 & 75,000 Btuh Furnaces
40
′
(12.2m) & (5) 90
°
elbows with 2
″
(50.8mm) PVC pipe
80,000 & 100,000 Btuh Furnace
40
′
(12.2m) & (5) 90
°
elbows with 3
″
(76.2mm) PVC pipe
125,000 Btuh Furnace
40
′
(12.2m) & (5) 90
°
elbows with 3
″
(76.2mm) PVC pipe
The minimum vent length is 5’ (1.5m) of PVC. Elbows are
DWV Long Radius Type for 2” (50.8mm) and 3” (76.2mm)
vents.
If more than five elbows are required, reduce the length of both
the inlet and exhaust pipes 5
′
(1.5m) for each additional elbow
used. If less than five elbow are required, the length can be
INCREASED by 5
′
(1.5m) for each additional elbow NOT
used.
NOTE:
It is allowable to use larger diameter pipe and fitting than
shown in the tables but
not
smaller diameters than shown.
Table 4
Pipe Diameter Table
Dual Piping ONLY
40,000, 50,000, 60,000 & 75,000 Btuh Furnaces
40
′
(12.2m) & (5) 90
°
elbows with 2
″
(50.8mm) PVC pipe
80,000 & 100,000 Btuh Furnace
40
′
(12.2m) & (5) 90
°
elbows with 3
″
(76.2mm) PVC pipe
125,000 Btuh Furnace
40
′
(12.2m) & (5) 90
°
elbows with 3
″
(76.2mm) PVC pipe
The minimum vent length is 5’ (1.5m) of PVC. Elbows are
DWV Long Radius Type for 2” (50.8mm) and 3” (76.2mm)
vents.
If more than five elbows are required, reduce the length of both
the inlet and exhaust pipes 5
′
(1.5m) for each additional elbow
used. If less than five elbow are required, the length can be
INCREASED by 5
′
(1.5m) for each additional elbow NOT
used.
*
Feet (M) of pipe is whichever pipe run is the longest, either
inlet
or
outlet side.
For venting table, see
“Concentric Termination Kit”
in
this manual.
Vent Termination Clearances
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in personal injury
or death.
Inlet and outlet pipes may NOT be vented directly above each
other.
!
WARNING
1. Determine termination locations based on clearances
specified in following steps and as shown in Fig. 8, 9, and
22 through 30.
For
“Concentric Termination Kit”
clearances, see Fig. 32, 33, 34,
35 and 36 in this manual.
2. This furnace is Dual Certified and can be installed as a single
pipe appliance (all combustion from inside the structure) or
as a direct vent appliance where all combustion air is taken
from outside the structure.
3. For Direct Vent installation, refer to Fig. 8 for vent
termination.
4. For Single Pipe installation refer to Fig. 9 for vent
termination clearances.
58H
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