Hoval UltraGas 1550, Technical Information Installation Instructions

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MAINTENANCE
Fig. 29
Cleaning:
• Spray combustion chamber and aluFer
®
pipes (3, Fig.
30).
- The best results are achieved with a spray gun and a
wide spray nozzle (flat or conical jet).
The following are to be recommended, for example:
- Desoxin
• Allow the cleaning concentrate to soak in according to
the manufacturer's instructions.
• Spray combustion chamber and aluFer
®
pipes with water.
• Use a spray gun with a “tight spray”.
• Repeat in case of heavy dirt build-up.
• Rinse burner chamber floor.
• Use an angled spray lance.
• Clean condensate tray.
• Clean the syphon.
- Unscrew
- Clean
- Screw on
- Fill with water
• Clean the burner cylinder fabric with compressed air.
• Check the burner cylinder fabric for damage and cra-
cked welds.
• Connect gas and electrical connections.
• Put the boiler into operation
• Carry out exhaust gas measurement according to chap-
ter 5.8. If necessary, adjust the setting. Make a record of
the measurement.
9
3
Fig. 30
6.6.3 Cleaning/adjusting ignition and ionisation
devices
The distance between the ionisation elec-
trode and the burner cylinder must be ap-
prox. 5 ±1 mm.
Fine sandpaper, long-nose pliers, soldering
lamp, 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 in chap-
ter 6.6.2 (cleaning the combustion chamber and bur-
ner cylinder on the outside).
Cleaning:
1. Sand the ignition and ionisation device with fine sand -
paper if needed.
2. Clean away the sanding dust.
Setting:
Check all electrode gaps and readjust if necessary (see
Fig. 31 and Fig. 32).
Ignition electrode
Ignition/ionisation electrode
4
mm
Fig. 31