59
AGUAPLUS
COSMOGAS
15 - MAINTENANCE
Figure 15-7 - Positioning electrodes on the burner
15.4.1 - Heat insulators
The heat insulators must be checked once a year and replaced
if broken or damaged. See figure 15-6 where the insulators
(parts “C” and “E”) are shown disassembled from the heat
exchanger and from the burner.
For replacement see the instructions provided with the spare
part.
A = LH ignition electrode
B = RH ignition electrode
C = Detection electrode
R
H
N
C
A
E
Q
B
F
S
L
G
M
D
020022.01.009
A = Clamping screw
B = Washer
C = Heat insulator
E = Heat insulator
F = White heat insulator
G = Burner
H = Gasket
L = Ignition electrodes
M = Screws
N = Detection electrode
Q = White heat insulator
R = Gasket
S = Gasket
Figure 15-6 - Positioning electrodes on the burner
15.5 - Positioning the ignition and
ionisation electrodes properly
For the appliance to work well, it is essential for the
electrodes to be positioned properly (refer to Figure 15-7):
- the distance between ignition electrodes “A” and “B” must
be between 2.0 and 2.5 mm;
- the distance of the ignition electrodes from the burner surface
must be between 5 and 5.5 mm;
- the distance of the ionisation electrode from the burner
surface must be between 5.5 and 6.5 mm.
To accurately position the electrodes, it is a good idea to
use a vernier caliper to respect the tolerances shown in
Figure 15-7.
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