Ignition electrode
Ignition/ionisation electrode
Fig. 38
5 mm
10 mm
Fig. 39
4 mm
Fig. 40
6.7
Setting the gas flow rate CO
2
(O
2
) and meas-
urement of NOx/CO content in the flue gas
Maintenance should be carried out at least
every second year or after consumption of the
neutralisation granulate (check pH value with
litmus paper, if necessary).
6.6.3 Leakage testing
After cleaning or at least every five years, the seal be
-
tween the combustion chamber and the condensate drip
tray must be checked for leakage. This can be done by
filling the boiler with water.
80
1
1
Water fill level
Fig. 37
6.6.4 Cleaning/adjusting the ignition
and ionisation device
The distance between the ignition electrode
and the burner cylinder must be approx.
4 mm.
Fine sanding paper, long-nosed pliers, blow-
torch, compressed air.
Preparation:
1.
Set the blocking switch to «0» and disconnect the
heat generator from the mains (main switch, fuse).
2. Open the combustion chamber as described under
Cleaning:
1.
Sand the ignition and ionisation device with fine sand
-
ing paper.
2. Clear the sanding dust.
Adjustment:
1. Heat the ignition electrode at the kink with the blow-
torch until it glows red (Fig. 38).
2. Bend the ignition electrode with the long-nosed pliers
(Fig. 39). Distance to the burner cylinder 10 mm.
Assembly:
1. Renew seal on gas connection.
2. Assemble burner in the reverse order.
3.
Check for gas leaks.
43
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MAINTENANCE
Содержание UltraGas 15
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