Viessmann VITODENS 100-W Technical Data Manual page 23

Stainless Steel Vent System (continued)
3
Vent System
Room Air Independent Operation
(Sealed Combustion Operation)
B A
b
a
Room Air Dependent Operation
B
b b
A
C
a = zero
3
Stainless steel vent material must be ULC/UL listed, stainless steel AL29-4C® for Category IV boilers.
Suggested sources: Flex-L International Inc., Flexmaster Canada Ltd. / Z-Flex (US) Inc., Heat-fab Division Selkirk Corp., or ProTech Systems Inc.
4
Boiler cannot support weight of vent system. Support venting as prescribed in vent manufacturer's installation instructions.
5
Combustion air supply pipe may be made of the following materials: ABS, CPVC, PVC, or stainless steel.
A maximum of 5 elbows may be installed in the vent and air intake system; do not exceed maximum equivalent vent length.
"
Always follow Viessmann Vitodens Venting System Installation Instructions (PN 5285 268).
"
Maximum
Equivalent Length
A A
Combustion Air Intake
B
Flue Gas Outlet
Maximum
Equivalent Length
A A
Combustion Air Intake Combustion Air Intake
B
Flue Gas Outlet
C
Air Opening
Vent System Diameter
1 Boiler Vent Adaptor
(included with boiler)
2 Double-Pipe Adaptor
60/100 > 80/80
3 Adaptor(s), stainless steel
80mm > 3" (order 2 pcs)
3" > 4" (order 2 pcs)
(not shown)
4
4 Venting Support
5 Combustion Air Intake Vent Material
Allowable materials: see note below
6 ULC/UL listed
Stainless Steel Vent Material
45° Elbow EqL=2ft / 0.6m
90° Elbow EqL=3ft / 0.9m
7 Bird Screen c/w
Termination
1 Boiler Vent Adaptor
(included with boiler)
2 Adaptor, coaxial
60/100 > 80/125
60/100 > 100/150
3 Adaptor, stainless steel
80mm > 3"
100mm > 4"
4
4 Venting Support
6 ULC/UL listed
Stainless Steel Vent Material
45° Elbow EqL=2ft / 0.6m
90° Elbow EqL=3ft / 0.9m
7 Bird Screen c/w
Termination
Appendix (continued)
3" 4"
a + b ≦ 66
20
—
7186 032 7186 032
field field
supplied supplied
and
— field
supplied
field field
supplied supplied
field field
5
supplied supplied
field field
3
supplied supplied
field field
supplied supplied
a + b ≦ 66
20
—
7176 765
—
7142 681
field
supplied
field
—
supplied
field field
supplied supplied
field field
3
supplied supplied
field field
supplied supplied
79 ft
24 m
— Order No.
Order No.
Order No.
Order No.
Order No.
Order No.
Order No.
Order No.
79 ft
24 m
— Order No.
— Order No.
Order No.
— Order No.
Order No.
Order No.
Order No.
Order No.
23