Installation & Servicing instructions
AT
AG XL
28
7.5 Collective flue gas outlet
Opting for a collective flue gas outlet is determined by:
- The position of the boilers with regard to their outlet area
- Sufficient space above the boilers
- Large number of boilers
You may opt for:
- Collective flue gas outlet under-pressure
- Collective flue gas outlet over-pressure
In many situations, flue gases cannot be vented individually because the installation
is indoors. For such situations, we recommend collective venting by means of under-
pressure or over-pressure using a flue gas outlet system. The air supply may also be
supplied collectively, but if the boiler room is suitable for that purpose (refer to chapter
6.3) it may also be obtained from this area (`open device` Boiler category B).
In the case of collective venting of flue gases, the flue gas-venting outlet always
has to end up in the open area (outlet area 1).
ATAG Heating UK can supply a collective flue gas outlet system for the ATAG XL. Re
-
fer to the following chapters with regard to the various possibilities and maximum pipe
lengths that can be used.
0,2
x
2xB
Flue outlet possibilites collective flue gas outlet
figure 7.5.a
Boiler category: B
Outlet area 1
(free outlet area)
Boiler category: C
Permitted only when the air
intake and the flue gas
outlet are in the same
pressure area