Viessmann Vitodens 100-W Technical Data Manual page 24

Appendix
CPVC Vent System
1
Vent System Vent System
Horizontally Vented
Room Air
Independent Operation Independent Operation
b
a
Room Air
Dependent Operation
b b
A A A A
C
a = zero
1
CPVC vent material must be ULC/UL listed, for Category IV boilers. Suggested source: IPEX Inc.
2
Boiler cannot support weight of vent system. Support venting as prescribed in vent manufacturer's installation instructions.
3
Combustion air supply pipe may be made of the following materials: ABS, CPVC, PVC, or stainless steel.
" Do not include first 90° elbow in equivalent vent length calculations (this applies to all vent materials).
" A maximum of 5 x 90° elbows may be installed in the air intake and flue outlet combined; do not exceed maximum equivalent vent length.
" Always follow Viessmann venting installation instructions 5368 815.
24
I M P O R T A N T :
Do not use any DWV plumbing
pipes to vent this boiler.
B
A A
A
Combustion Air Intake
B B
Flue Gas Outlet Flue Gas Outlet
B B
A
Combustion Air Intake
B B
Flue Gas Outlet Flue Gas Outlet
C
Air Opening
Vent System Diameter
Maximum Equivalent a + b
Length (EqL)
1 Boiler Vent Adaptor
2 Adaptor(s), CPVC
60mm to 2"
3 Adaptor(s), CPVC
2" to 3"
3" to 4"
(not shown)
4 Venting Support
2
5 ULC/UL listed CPVC Vent Material
for EqL calculations, use:
H 45° Elbow EqL=3ft. / 0.9m
H 90° Elbow EqL=5ft. / 1.5m
6 Adaptor(s), CPVC
60mm to 2"
7 2" to 3" or 2" to 4"
8 Combustion Air Intake Vent Material
Allowable materials: see note below
9 Bird Screen (Set of 2)
for CPVC
1 Boiler Vent Adaptor
2 Adaptor(s), CPVC
60mm to 2"
3 Adaptor(s), CPVC
2" to 3"
3" to 4"
(not shown)
4 Venting Support 2
5 ULC/UL listed CPVC Vent Material
for EqL calculations, use:
H 45° Elbow EqL=3ft. / 0.9m
H 90° Elbow EqL=5ft. / 1.5m
9 Bird Screen (Set of 2)
for CPVC
2" 3" 4"
86 / 26 164 / 50 200 / 61
included with boiler
7134 769
field field
—
supplied supplied
and
field
— —
supplied
field supplied
1
field supplied
7134 769
field supplied
field supplied
3
7134 780 7134 781 7134 782
included with boiler
7134 769
field field
—
supplied supplied
and
field
— —
supplied
field supplied
1
field supplied
7134 780 7134 781 7134 782
Diameter
ft. / m
Order No.
Order No.
Order No.
Order No.
Order No.