Viessmann VITODENS 200-W Technical Data Manual page 51

Stainless Steel Vent System (continued)
1
Vent System
Horizontally Vented
Room Air
Independent Operation Independent Operation
b
a
Room Air
Dependent Operation
b b
A
C
a = zero a = zero
1
Stainless steel vent material must be ULC/UL listed, stainless steel AL29-4C® for Category IV boilers.
Suggested sources: Flexmaster Canada Ltd. / Z-Flex (US) Inc., Heat-fab, ProTech Systems Inc., or Security Chimneys Int'l.
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 87° 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.
B
A
A A
Combustion Air Intake
B
Flue Gas Outlet
B B
A
Combustion Air Intake
B
Flue Gas Outlet
C
Air Opening
Vent System Diameter
Maximum Equivalent
WB2B
Length (EqL) a + b
1 Boiler Vent Adaptor
2 Double-Pipe Adaptor
3 Adaptor(s), stainless steel
80mm to 3" (order 2 pcs)
3" to 4" (order 2 pcs)
(not shown)
110mm to 4" (order 2 pcs)
4 Venting Support 2
5 ULC/UL listed Stainless Steel Vent
1
for EqL calculations, use:
Material
H 45° Elbow EqL=2ft. / 0.6m
H 90° Elbow EqL=3ft. / 0.9m
8 Combustion Air Intake Vent Material
Allowable materials: see note below
9 Bird Screen c/w Termination
for stainless steel
1 Boiler Vent Adaptor
2 Adaptor, stainless steel
80mm to 3"
3 Adaptor, stainless steel
3" to 4"
110mm to 4"
4 Venting Support
2
5 ULC/UL listed Stainless Steel Vent
1
for EqL calculations, use:
Material
H 45° Elbow EqL=2ft. / 0.6m
H 90° Elbow EqL=3ft. / 0.9m
9 Bird Screen c/w Termination
for stainless steel
3" 4" 4"
-45/-60 -45/-60 -80/-105
98 / 30 148 / 45 131 / 40
included with boiler
7189 822 7373 253
field field
—
supplied supplied
and
field
— —
supplied
field
— —
supplied
field supplied
field supplied
field supplied
3
field supplied
included with boiler
field field
—
supplied supplied
field
— —
supplied
field field
—
supplied supplied
field supplied
field supplied
field supplied
Appendix
Diameter
ft. / m
Order No.
51