ecoTEC plus 937 installation and maintenance manual14
A 100 mm standard flue duct (Item No. 303 933) is
available. Further information can be obtained from the
installation instructions for the flue duct.
Extensions are available to increase this length to a
maximum of 5.5 m. 87° elbows and 45° bends are also
available to increase the flexibility during installation.
1435
10
550
880
40
Fig. 3.3 Item No. 303 900 (60/100)
3.6.2 Optional 125 mm flue pipe
A concentric flue pipe having an outside diameter of 125
mm is available, which can be extended to a length of up
to 21 m.
You can also get a vertical system. Further information
can be obtained from the installation instructions for the
flue pipe.
70
1103
70
15
Fig. 3.4 Item No. 303 209
1530
880
650
70
Fig. 3.5 Item No. 303 200 (80/125)
3.7 Flue termination
The following information applies to both flue pipe
systems.
a. The terminal position must be located in such a
position that any flammable gasses can be freely
dissipated.
b. A plume of water vapour will sometimes be visible
from the flue terminal. Positions where this could be a
nuisance should be avoided.
c. If the terminal is less than 2 m above a balcony, the
ground or a flat roof that is accessible by persons, a
suitable terminal guard should be fitted (manufactured
by Tower Flue Components, Tonbridge, TN9 1TB, Model
K3, plastic-coated).
A
BCD
A
G
H, I
F
J
B
F
M
L
L
K
K
G
G
F
F
E
A
A
Fig. 3.6: Flue termination
h
Note!
Vertical flue pipes must not terminate within
600 mm of an opening window, air vent or any
other ventilation opening.
The flue pipe must be fitted, or shielded, in such a way
that ignition or damage to sections of the building are
avoided.
3 General requirements
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