Viessmann Vitodens 100-W Technical Data Manual page 22

Appendix
Stainless Steel Vent System
1
Vent System Vent System
Horizontally Vented
Room Air
Independent Operation Independent Operation
b
a
Room Air
Dependent Operation Dependent Operation
b
A A
C
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 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.
22
B
A A
A A
Combustion Air Intake 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
Length (EqL)
1 Boiler Vent Adaptor
2 Adaptor, for stainless steel
60/100 to 80/125
(outer shell removed)
3 Adaptor(s), stainless steel
80mm to 3"
3" to 4"
(not shown)
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
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 c/w Termination
for stainless steel
1 Boiler Vent Adaptor
2 Adaptor, for stainless steel
60/100 to 80/125
(outer shell removed)
3 Adaptor(s), stainless steel
80mm to 3"
3" to 4"
(not shown)
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"
a + b 164 / 50 200 / 61
included with boiler
7424 112
field field
supplied supplied
and
field
—
supplied
field supplied
field supplied
7134 769
field supplied
field supplied
3
field supplied
included with boiler
7424 112
field field
supplied supplied
and
field
—
supplied
field supplied
field supplied
field supplied
Diameter
ft. / m
Order No.
Order No.
Order No.