Warning
If the flue gas outlet and air supply materials are not installed in
accordance with the instructions (e.g. not leak-proof, not correctly
bracketed), this can result in dangerous situations and/or physical
injury.
Make sure that the flue gas outlet pipe towards the boiler has a sufficient
gradient (at least 50 mm per metre) and that there is a sufficient
condensate collector and discharge (at least 1 m before the outlet of the
boiler). The bends used must be larger than 90° to guarantee the
gradient and a good seal on the lip rings.
Condensation
Direct connection of the flue gas outlet to structural ducts is not
permitted because of condensation.
If condensate from a plastic or stainless steel pipe section can flow back
to an aluminium part in the flue gas outlet, this condensate must be
discharged via a collector before it reaches the aluminium.
Important
Contact us for more information.
6.5.6
Specific air and flue gas applications
Important
If the boiler is used in a flue gas overpressure cascade, this must
be stated on the sticker supplied: This central heating unit is set
for... This sticker must be affixed on top of the boiler next to the
type plate.
Contact us for more information.
6.5.7
Connecting the flue gas outlet and air supply
S insertion depth 50 mm
1. Fit the flue gas outlet pipe to the boiler.
2. Fit the subsequent flue gas outlet pipes and air supply pipes in
accordance with the manufacturer's instructions.
Caution
The pipes must be flue gas-tight and corrosion-resistant.
The flue gas outlet pipe must be smooth and deburred.
Connect the pipes so that they are stress-free.
The pipes must not rest on the boiler.
Fit the horizontal parts sloping down towards the boiler, with a
slope of 50 mm per metre.
Fig.21
Connecting the flue gas outlet and
air supply
AD-0000221-01
Ø100/150 mm
S
6 Installation
7625116 - v.06 - 17102018
33
