Viessmann VITODENS 200-W Technical Data Manual page 59

CPVC Vent System (continued)
1
Vent System
Vertically Vented
Room Air
Independent Operation Independent Operation
A A
Combustion Air Intake Combustion Air Intake
B
Flue Gas Outlet
Room Air
Dependent Operation
A
Combustion Air Intake
B B
Flue Gas Outlet Flue Gas Outlet
C
Air Opening
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.
I M P O R T A N T :
Do not use any DWV plumbing
pipes to vent this boiler.
Vent System Diameter
Maximum Equivalent
Length (EqL)
1 Boiler Vent Adaptor
B B A A
2 Double-Pipe Adaptor
3 Adaptor(s), CPVC
b
a a
4 Venting Support
5 ULC/UL listed CPVC Vent Material
8 Combustion Air Intake Vent Material
9 Bird Screen (set of 2)
1 Boiler Vent Adaptor
B
2 Flue Adaptor, CPVC
3 Adaptor(s), CPVC
b
4 Venting Support
A
5 ULC/UL listed CPVC Vent Material
C
9 Bird Screen (set of 2)
a = zero
WB2B
a + b
80mm to 3" (order 2 pcs)
3" to 4" (order 2 pcs)
(not shown)
110mm to 4" (order 2 pcs)
2
for EqL calculations, use:
H 45° Elbow EqL=3ft. / 0.9m
H 90° Elbow EqL=5ft. / 1.5m
Allowable materials: see note below
for CPVC
3" to 4"
2
for EqL calculations, use:
H 45° Elbow EqL=3ft. / 0.9m
H 90° Elbow EqL=5ft. / 1.5m
for CPVC
3" 4" 4"
-45/-60 -45/-60 -80/-105
98 / 30 148 / 45 131 / 40
included with boiler
7189 822 7373 253
7134 770 7134 770
field
—
supplied
— — 7134 771
field supplied
1
field supplied
field supplied
3
7134 781 7134 782
included with boiler
7134 770 7134 771
field
—
supplied
field supplied
1
field supplied
7134 781 7134 782
Appendix
Diameter
ft. / m
Order No.
Order No.
—
—
Order No.
Order No.
Order No.
—
Order No.
59