Buderus GB402-320-5, Инструкции по установке и обслуживанию для подрядчиков

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10 Inspection and servicing
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▶ Clean the heat exchanger gas flues horizontally and diagonally using
the cleaning blade.
▶ Clean the back section of the hot gas flues from below through the
condensate pan using the cleaning blade.
Fig. 52 Dry cleaning the heat exchanger
[1] Cleaning blade (available separately)
▶ Screw the cleaning covers back on.
Fig. 53 View of cleaning cover;
[1] 320 kW
[2] 395-620 kW
Wet cleaning the heat exchanger
When wet-cleaning, use a cleaning agent appropriate to the level of
contamination (soot level or encrusted residues). The cleaning agent
must be suitable for aluminium!
▶ Clean the heat exchanger with water or a cleaning agent suitable for
aluminium (observe the instructions by the manufacturer of the
cleaning agent).
Fig. 54 Wet cleaning the heat exchanger
Working on the heat exchanger during wet and dry cleaning
▶ Use a hose to flush any residues into the bucket or the condensate
pan.
▶ Clean the condensate pan with water.
▶ Clean the siphon with water.
▶ Re-install the siphon (

Chapter 6.2, page 17).
▶ Check the condensate hose between the boiler flue connection and
the siphon for free flow.
DANGER:
Risk to life through escaping flue gas!
▶ During installation, look out for faulty gaskets and
ensure they are seated correctly. Replace faulty
gaskets.
▶ Replace the gaskets as described
(

Chapter 10.13, page 42).
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During wet cleaning, protect electrical components (fan,
gas valve etc.) against moisture and contamination.
DANGER: Risk to life through poisoning! Siphons not
filled with water can cause a risk to life through escaping
flue gas.
▶ Fill the siphon with approx. 2 litres of water.