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Check the spacing between the ignition electrodes
(see figure opposite). It must be between 2.5 and
3.5 mm. If this is not the case, the electrode must
be replaced.
Check the ignition electrode fold geometry.
If there is over ±0.8 mm deformation, the electrode
must be replaced.
Put back the electrode block(s). Block attachment
screw tightening torque = 2.5 N.m Electrically
reconnect the electrodes and the earth wire
7.3. Cleaning the condensate evacuation pipe
Check the siphon and clean it if necessary. The
siphon is underneath the fume nozzle.
To do so:
• Free the siphon by pulling it downwards.
• Clean it with water.
• Replace the siphon after checking that the floater
(ball) is present and can move freely. Also check
that the seal has not been damaged.
figure 16 - Spacing
2.5-3.5 mm
figure 17 - Geometry
4 mm
figure 18 - Siphon
Siphon
a = 137.5 mm (Dorchester DR-SG XX-210 et XX-356)
a = 157.5 mm (Dorchester DR-SG XX-538)
13.01.2023
Page 45 / 104
DORCHESTER DR-SG -
Installation, Operation and Maintenance