Hoval UltraGas 15, Техническая информация Инструкции по установке

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6.6 Cleaning
The boiler may only be cleaned by an author-
ised technician or by the Hoval Customer Ser-
vice.
The Hoval gas heating boiler should be
cleaned and maintained once every year.
If the Hoval gas heating boiler was in operation during the
building phase, it will be necessary to carry out a check
for cleanliness. If the boiler is dirty, clean it.
6.6.1 Cleaning the burner cylinder
The burner cylinder must be cleaned if visible
contamination exists (such as deposits, e.g.
builder’s dust)
Adjustable spanner, screw driver, open end
spanner SW 8, vacuum cleaner, compressed
air, water.
Preparation:
1. Set the blocking switch to «0» and disconnect the
heat generator from the mains (main switch, fuse).
2. Close the main gas valve
3. Remove the sound insulation covers
4. Disconnect all the burner connector plugs
5. Pull the corrugated hose (1, Fig. 31) off the venturi
tube on the burner (if present).
6. Disconnect the earthing cable (2, Fig. 32) from the
burner cylinder
7. Disconnect the gas connection from the gas arma-
tures.
8. Unscrew the fan with the gas mixing unit in place
(3, Fig. 32)
Removal and cleaning:
CAUTION
Danger of burns, let the boiler cool down or
wear protective clothing
1. Safety gloves must be worn when removing the burn-
er cylinder
2. Lift the burner cylinder out (4, Fig. 33).
3. Clean the premix burner with compressed air inside
and out, or rinse thoroughly with water
4. Remove dust and dirt particles with a vacuum cleaner
(Fig. 34).
Reassembly:
1. Replace the gasket on the gas connection
2. Reassemble the burner in reverse order
3. Check for leaks
4. Carry out a flue gas measuring according to point 5.8
1
Fig. 31
2
3
Fig. 32
4
Fig. 33
Fig. 34
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MAINTENANCE