Dibo SBH-G-D, Original Instructions Manual

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EN
CoMBuSTIon ChaMBER GaS hEaTED InSTRuCTIonS-REGulaTIonS
DiBO 52
29
Reason:
The soot has the effect of an insulator. Only part of the produced energy can be delivered to the water.
The exhaust channels are mostly blocked by soot. The combustion chamber is entirely overheated.
The inner casing an later the outer casing will burn out, if this condition lasts for any length of time.
Solution: Remove the heating coil and clean it with a high pressure cleaner.
The procedure has been described in the operating instructions, page 10, P. 14.5
3.1.3 The inner tube has come off the inner lid
The exhaust temperature exceeds 220 °C by far.
The temperature of the outer casing exceeds 60°C.
The temperature limiting safety device cuts off.
The burner can no longer be correctly adjusted.
The cause may be overheating due to the lack of water.
The inner tube drops down. The exhaust gases take the short way through the upper region of the heating coil and
leave the combustion chamber through the chimney, without releasing energy.
3.1.4 The inner casing and/or inner lid have burned out. .
The exhaust temperature exceeds 220 °C by far.
The temperature of the outer casing exceeds 60°C.
The temperature limiting safety device cuts off.
The burner can no longer be correctly adjusted.
Reasons for this may be:
Overheating due to lack of water, aggressive surrounding air sucked in by the ventilator
(chlorine, fluorine, dusts of all kinds, its own exhaust gases etc.).
3.2 The water becomes too hot in spite of correctly regulated temperature.
The exhaust temperature exceeds 220 °C by far.
The temperature of the outer casing exceeds 60°C.
The water temperature reaches steam condition.
The temperature limiting safety device cuts off.
The connecting pipes become overheated and burst.
Main reason: The regulating (digital)thermostat works incorrectly. Check the sensor and the capillary tube; exchange the
thermostat, if necessary.
Secondary reasons: The opening of the nozzle has narrowed. Open the nozzle or exchange it.
The cut off point of the flow switch contactor has been regulated too low. Correct the adjustment.
3.3 Water escapes from the lower seams of the outer casing.
3.3.1 The heating coil has a crack.
The exhaust temperature is normal.
The burner can no longer be correctly adjusted.
The exhaust gases are saturated with vapour and thus a smoke picture cannot be drawn.
Solution:
Exchange the heating coil with a new one. The procedure has been described in the operating instructions, 14.5
3.3.2 Excessive building up of perspiration water.
The exhaust temperature is normal.
The burner can no longer be correctly adjusted.
Fluid escapes off the seams of the outer casing.
The exhaust gases are saturated with vapour and thus a smoke picture cannot be drawn.
Reasons: The quantity of water passing through is by far too much for the burner. (<18 Litres/min.)
The inflow water is very cold.
Unfavourable weather conditions, high humidity
Solution: Reduce the quantity of water; if possible,
increase the capacity of the burner by increasing the gas pressure.
Add on further combustion chambers.