E93.1001EN.C Manual CD
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6.4
C63 certified
In general, water heaters are certified with their own flue gas material. For type B23, C13, C33, C43, C53, C83
systems, only use flue gas and air supply parts approved according §4.2 and §4.3.
If a heater is C63 certified, no specific type flue gas material has been certified in combination with the boiler. In
this case the flue gas and air supply parts should comply with the applicable European standards (EN14989).
So, for type C63 systems flue gas and air supply parts from other suppliers can be used. It must be able to han-
dle the condensate forming (W) and transport, overpressure (P1) and must have a minimum temperature class
of
T120
. Also it has to meet the requirements in the following chapters "air supply" and "flue terminal".
CE string
flue gas
material
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loc
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: f
ir
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be-
hav
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P
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:
enc
los
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min. req. PP
EN 14471
T120 P1
W
1
O
30
I of E
C/E
L
min. req. SS
EN 1856-1 T120 P1
W
1
L20040
O
40
C53
Closed
Air supply from
outside
*Separate air supply duct
*Separate flue gas discharge duct.
* Air supply inlet and flue gas outlet at differ-
ent air pressure zones. But not at opposite
walls.
See chapter: Accessories –
Fluegas and air supply parts - TWIN PIPE
See: Six typical examples - example F
C63 - example
Closed
Air supply from
outside
* Appliance sold without flue/air-inlet ducts
* The flue gas parts are not part of the water
heater. The water heater is intended to be
connected to a separately approved and
marketed system for the supply of combus-
tion air and discharge of combustion prod-
ucts.
Condensate is allowed to go to the water
heater.
* Air supply inlet and flue gas outlet not at
opposite walls
* Technical data:
nominal T
flue gas
85°C
nominal Q
fluegas
see 2.2
1)
maximum T
fluegas
95°C
min. load T
fluegas
35°C
min. load Q
fluegas
see 2.2
1)
nominal % CO
2
see 2.2
1)
max. allowed draft
70Pa
max. pressure drop in-
let-outlet
200Pa
max T
air supply
40°C
max recirculation
10%
1) table technical specifications
See chapter: Accessories
- Fluegas and air supply parts
- TWIN PIPE
See: Six typical examples - example A
roof terminal
roof terminal
Flue outlet
Air inlet
Air inlet
Flue outlet