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4 Before installation
Fig.17
Different pressure zones Gas 620
Ace
L =
+
Fig.18
Bend radius 1D
R=1D
4.5.5
Additional guidelines
20
L Combined length of the flue and air supply channel
Flue gas outlet connection
Air supply connection
Tab.17
Maximum length (L)
Diameter
(1)
Gas 620 Ace 570
Gas 620 Ace 710
Gas 620 Ace 860
Gas 620 Ace 1000
Gas 620 Ace 1150
Gas 620 Ace 1300
(1) While maintaining maximum length, additional 5 times 90º or 10 times 45º
AD-3001566-01
bends can be used (indicated for each boiler type and diameter).
Reduction table
Tab.18
Pipe reduction for each bend - radius 1D (parallel)
Diameter
D
45° bend
90° bend
AD-3001609-01
Air supply filter
An air supply filter is separately available.
When installing the boiler in a room-ventilated setup (B
It is recommended to install the air supply filter if the boiler is installed in
a dusty room.
It is mandatory to install the air supply filter if the boiler is exposed to
construction dust.
Installation
For installing the flue gas outlet and air supply materials, refer to the
instructions of the manufacturer of the relevant material. After
installation, check at least all flue gas outlet and air supply parts for
tightness.
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 trap before it reaches the aluminium.
Newly installed aluminium flue gas pipes with longer lengths can
produce relatively larger quantities of corrosion products. Also casting
sand and processing metal chips from new boilers can fill the boiler trap
300 mm
350 mm
100 m
100 m
(1)
(1)
48 m
100 m
(1)
24 m
83 m
-
38 m
-
-
-
-
250 mm
300 mm
350 mm
2.0 m
2.4 m
2.8 m
3.5 m
4.2 m
4.9 m
, B
23
7734324 - v.07 - 21092022
400 mm
100 m
(1)
100 m
(1)
100 m
(1)
90 m
28 m
-
400 mm
3.2 m
5.6 m
):
23P
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