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2902768
5
GB
The intake-tube / burner system must not allow a loss of over 2 m
3
/h at 0.5 mbar:
for instance, the above requirements will be met if you use flues for pressure exhaust of flue gases (the
condensation kind).
Make sure the air intake tube’s inlet is positioned so that it is not likely to be obstructed by foreign matter
and, where necessary, use suitable screens.
The temperature of the incoming air must not exceed
60 °C
;
The inside diameter of the hose must be at least 80 mm.
The intake tube can be up to 6 metres in length.
Warning
: length is reduced if there are bends in the intake section.
For instance, using a tube with a smooth inside surface, you must allow for the following losses:
- for each 45° bend, tube length is reduced by 0.5 m;
- for each 90° bend, tube length is reduced by 0.8 m.
BURNER INSTALLATION MUST COMPLY WITH ONE OF THE INSTALLATIONS ILLUSTRATED IN THE
FIGURES BELOW.
Under no circumstances should the air’s entry in the hose intake area be obstructed.
The hose must not be blocked in any way or feature a shutting device (valves, membranes etc.).
3.3
GAS SUPPLY LINE
ATTENTION
S7851
S7853
S7876
1
2
3
4
5
6
M1 7
8
9
10 11
12
M2
13
M3
14
D4208
Содержание 3768000
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