Installation guide

41
Exhaust Vent/Air Intake Requirements
Combustion air supply
The Vitodens boiler is suitable for
sidewall, as well as vertical venting
using field supplied venting material.
The Vitodens 100-W and 200-W
boilers are approved for both direct
vent (sealed combustion), as well as
direct exhaust (non-sealed combustion)
operation in both horizontal and vertical
arrangements. For non-sealed
combustion vent systems (i.e. room-air
dependent), see appropriate section
under “Single Wall Venting” starting on
page 64 in this manual.
The boiler must be connected to a
direct vent system in which all air for
combustion is taken from the outside
atmosphere and all combustion
products are discharged safely to the
outdoors.
The boiler must be vented and supplied
with combustion air and exhaust vent
as described in this section. Ensure the
vent and combustion air supply comply
with these instructions.
Inspect all finished exhaust vent/air
intake piping to ensure:
H Vent/air intake pipe and fittings are of
approved material.
H Acceptable size, length and number
of elbows on combined vent/air
intake system.
H Installation is in accordance with
prevailing provisions of local codes.
H Installation complies with the
requirements of these instructions, as
well as the exhaust vent/air intake
supplier’s instructions.
The exhaust vent and combustion air
intake system and terminations may be
installed in one of the following type
terminations (2-pipe system):
1. Horizontal air intake and exhaust
vent pipes
2. Vertical air intake and exhaust vent
pipes
3. Horizontal air intake pipe and vertical
exhaust vent pipe
* Typically when the boiler is used as
a temporary heat source during the
building construction phase.
Do not locate boiler in areas where
high dust levels or high humidity
levels are present.
CAUTION
Do not install boiler during
construction involving drywall or
heavy dust of any kind. Dust can
accumulate in the burners and cause
sooting. Install boiler after all heavy
dust construction is completed.
CAUTION
*
If the boiler has been exposed to high
dust levels, all burners and the heat
exchanger must be cleaned prior to
use.
CAUTION
If above criteria are not properly
observed and boiler damage results,
any warranty on the complete boiler
and related components will be null
and void.
CAUTION