Connecting Combustion Air Intake For Direct Vent; Additional Requirements For Stainless Steel Vent Pipe Material - Viessmann VITOCROSSAL 200 CI2 Series Installation Instructions Manual

Venting
General Venting Information

Connecting Combustion Air Intake for Direct Vent

Additional Requirements for Stainless Steel Vent Pipe Material

Duravent
www.duravent.com
Selkirk Canada Corporation
www.selkirkchimney.com
Security Chimneys
International Ltd.
www.securitychimneys.com
Jeremias Inc.
www.jeremiasinc.com
METAL-FAB, INC.
www.mtlfab.com
Note: For SS venting system order transition adaptors
from the above mentioned suppliers.
IMPORTANT
For exhaust vent pipe material:
Do not use any other vent material.
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(continued)
ICC - Industrial Chimney Co.
www.icc-rsf.com
Z-Flex US Inc.
(Flexmaster Canada)
www.Z- flex.com
Enervex Inc.
(formerly Exhausto)
www.enervex.com
Van-Packer Co. Inc.
www.vpstack.com
Flashing and storm collar installation
Flashings and storm collars are field supplied. Flashings
and storm collars suitable for Type B vent materials (or
better) may be used.
To obtain flashings and storm collars, please contact
your local vent material supplier. Follow the installation
instructions supplied by the special venting manufacturer.
Follow local codes to properly isolate the exhaust vent
pipe when passing through floors, ceiling and roof.
Always check the marking on the pipe to make sure you
are using the correct material.
Room air independent operation (direct vent)
The connection set for the combustion air intake kit is
available as an accessory.
Refer to the installation instructions "combustion
air intake kit".
Use stainless steel venting system (UL/ULC listed for
category IV) for horizontal or vertical venting of the
Vitocrossal boilers.
Contact one of the suppliers (see listing on left) to order.
Prior to installation, check that the correct single-wall
vent parts were ordered and supplied.
For sealed combustion systems that are vertically vented,
a Viessmann vacuum relief damper may be needed to
protect the vent system against vacuum conditions.
This very rare occurrence can happen when a boiler is
firing at maximum capacity and the burner cycle is suddenly
interrupted (ie. power failure). For more information on this
device, or questions specific to your application, please
consult with the vacuum relief damper installation
instructions or contact your local Viessmann representative.
Exhaust vent/air intake connection to boiler
The vent connection to the Vitocrossal boiler may require
a starter stainless steel adaptor (supplied by others).
Combustion air intake
If using room air-independent venting system, the
combustion air intake kit must be used. Connect the air
intake pipe (from outdoors) to the adaptor provided.
If room air-dependent venting system is used, the air is
drawn into the burner inlet through the combustion air
inlet screens located on the side of the boiler.
Vitocrossal 200 CI2 Installation