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Vitocrossal 300 CA3 Series 2.5 to 6.0 Installation/Service
General Venting Information
(continued)
Part
Material
Certified to Standards
Applicability
Exhaust pipe and fittings
Stainless steel
UL1738
“Venting systems for
gas-burning appliances, Categories II,
III, IV”
U.S.A./Canada
ULC S636
“Standard for Type BH gas venting
systems”
PP(s)
Polypropelene
UL1738
“Venting systems for gas-burning
appliances, Categories II, III, IV”
ULC S636
“Standard for Type BH gas venting
systems” Class IIC 110ºC
Combustion air intake pipe
and fitting
Stainless steel
n.a.
PVC-DWV
Schedule 40
ANSI/ASTM D2661
CSA B181.1
ULC S102.2
ANSI/ASTM D2665, D1785
CSA B137.3, B181.2
ANSI/ASTM F441
CPVC
Schedule 40
ANSI/ASTM D2661
CSA B181.1
ULC S102.2
ANSI/ASTM D2665, D1785
CSA B137.3, B181.2
ANSI/ASTM F441
ABS-DWV
Schedule 40
ANSI/ASTM D2661
CSA B181.1
ULC S102.2
ANSI/ASTM D2665, D1785
CSA B137.3, B181.2
ANSI/ASTM F441
PP(s)
Polypropelene
UL1738
“Venting systems for gas-burning
appliances, Categories II, III, IV”
ULC S636
“Standard for Type BH gas venting
systems” Class IIC 110ºC
Pipe cement, primer
(for combustion air intake
pipe)
PVC
ANSI/ASTM D2564
CSA B137.3
CPVC
ANSI/ASTM F493
CSA B137.6
ABS
ANSI/ASTM D2235
CSA B181.1/B182.1
Approved venting materials
CAUTION
Do not use cellular (foam) core pipe material to vent this
Vitocrossal boiler.
CAUTION
On the job site, ensure that non-listed combustion air
pipe materials are not inadvertently used instead of
listed vent pipe material.
Venting
