Viessmann Vitodens 100-W WB1B Series Installation Instructions Manual page 6

Safety
Important Regulatory and Installation Requirements
IMPORTANT
When replacing parts, use original Viessmann or
Viessmann approved replacement parts.
The venting system must be installed by a licensed
professional heating contractor familiar with the
operation and maintenance of heating appliances and
venting. Before installing this product, ensure that the
complete installation literature has been read. Failure to
follow proper installation procedures as stated in these
instructions, including vent pitch and proper appliance
connections, may violate local, provincial/state, or
national codes and cause unsafe conditions which may
lead to severe property damage or personal injury.
The venting system must be installed in accordance with
local building code requirements as well as national codes.
For installations in Canada use CAN/CSA-B149.1 Natural
Gas Installation Code or CAN/CSA-B149.2 Propane
Installation Code as applicable; in the U.S. use the
National Fuel Gas Code ANSI Z223.1 or NFPA
Standard 54.
To ensure safe operation of the appliance, Viessmann
recommends that the system be inspected once a year
by a qualified service technician.
Every venting system must be planned and installed for
optimum performance and safety. These Installation
Instructions are designed to help you determine venting
requirements and limitations with respect to installation.
Please read and follow these instructions carefully.
It is the responsibility of the installer to contact local
building and fire officials concerning any installation
restrictions and/or inspection requirements that may
apply. Permits may be required before commencement
of the installation.
6
(continued)
The air intake termination for side wall air intake
installations should be located on a wall that is least
affected by prevailing winds. High winds may affect boiler
operation.
Because of its sealed combustion chamber, the Vitodens
gas-fired condensing boiler is suitable for operation with
balanced flue.
The Vitodens boiler, flue gas adaptor and parallel adaptor
(if used) are approved together under CSA 4.9. ANSI
Z21.13 - 2010 Standard.
The venting system components are tested and listed to
ULC S636 or UL 1738 by Intertek and are marked and
labelled on each component.
IMPORTANT
DO NOT mix pipe, fittings, or joining methods from different
vent system manufacturers.
DO NOT use adhesives of any kind with this venting system.
The vent length requirements stated in this manual
(starting on page 13 for direct vent installations and page
22 for single pipe vent installations) must be observed.
Flue gases are discharged via rigid PP(s) vent components
into the flexible vent pipes to the outdoors. This vent
system is constructed from flame-retardant plastic
[polypropylene rated for a maximum temperature of
230ºF (110ºC)].
Flexible Venting Installation