Atag XL75W User Manual

38
Installation
Connections
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is determined by:
- The position of the boilers with
regard to their outlet area
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- Number of boilers
You may opt for:
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under-pressure
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over-pressure
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be vented individually because the
installation is indoors. For such
situations, we recommend collective
venting by means of under-pressure or
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system. The air supply may also be
supplied collectively, but if the boiler
room is suitable for that purpose it may
also be obtained from the boiler room
(`open device` Boiler category B).
If you install a common duct providing
combustion air to more than one
appliance, there is a risk that
combustion air would be drawn from an
other appliance.
This may then be subject to a
negative pressure.
In the case of collective venting
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outlet always has to end up in the
open area (outlet area 1).
0,2 x 2 x B
Boiler category: B
Outlet area 1
(free outlet area)
Boiler category: C
Permitted only when the air
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outlet are in the same
pressure area

Atag XL75W Specifications

General

Brand	Atag
Model	XL75W
Category	Boiler
Language	English