62
A = Left ignition electrode
B = Right ignition electrode
C = Flame detection electrode
Fi
gure 47 - Positioning electrodes on burner
13.5 - Correct
positioning of the
ignition and flame
detection
electrodes
For the boiler to work properly the
electrodes must be positioned as
shown in figure 47:
the distance between the ignition
electrodes “A” and “B”, must be
between 0.08 in
(2 mm)
, and 0.082
in (2.5 mm);
the distance of the ignition
electrodes to the burner surface
must be between 0.196 in
(5.0 mm)
,
and 0.215 in (
5.5 mm)
;
the distance of the flame detection
electrode to the burner surface must
be between 0.236 in
(6.0 mm)
, and
0.276 in
(7.0 mm)
.
13.6 - Domestic hot
water heat
exchanger (only for
45WN model
The production of DHW takes place in
the secondary heat exchanger, detail
“42” in figure 1. If this heat exchanger
looses efficiency over time, it may be
necessary to clean or replace it.
13 - MAINTENANCE
Summary of Contents for ONEX
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