De Dietrich MS 24 BIC [70/292] 20 1 6 1 8 7 20 30 2

De Dietrich MS 24 BIC [70/292] 20 1 6 1 8 7 20 30 2
70
71.06199.02 - EN
INSTALLATION INSTRUCTIONS
… SEPARATE FLUE AND AIR DUCTS
This type of installation makes it possible to discharge exhaust fumes both outside the building and into single ue ducts.
Comburent air can be drawn in at a different location from that of the ue terminal. The splitting kit comprises a ue duct
adaptor (100/80) and an air duct adaptor. For the air duct adaptor, t the screws and seals previously removed from the cap.
The 90° curve allows the boiler to be connected to a ue-air duct in any direction as it can be rotated by 360°. It can also
be used as a supplementary curve combined with a duct or a 45° curve.
• A 90° curve reduces total duct length by 0.5 metres.
• A 45° curve reduces total duct length by 0.25 metres.
The first 90° curve is not considered when calculating the maximum available length.
Boiler model (L1+L2)
Position
of air regulator
CO
2
%
G20 G31
24 BIC FF
0 ÷ 20 1
6,1 8,7
20 ÷ 30 2
Adjusting the air regulator for separate flues
This regulator must be adjusted to optimise combustion efciency and parameters.
After turning the air intake connecter, which can be mounted both to the right and the left of the exhaust ue duct, suitably
adjust the excess air according to the total length of the combustion exhaust and inlet ue ducts.
Turn this regulator anticlockwise to decrease the excess of comburent air and vice-versa to increase it.
To ne tune, use a combustion product analyser to measure the amount of CO
2
in the fumes at maximum heat capacity,
and, if a lower value is measured, gradually adjust the air regulator until the amount of CO
2
indicated in the following table
is measured.
To mount this device correctly, consult the relative instructions.
Figure 8
CG_1145 / 1104_0801
connector
aperture
index

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