BENEKOV K14, Operation And Installation Manual

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3.) During continuous operation of the boiler it is recommended to clean the heat exchanger surface of the
boiler body once a month. The heat transfer surfaces can become clogged, which can greatly affect the
heat transfer and thus the efficiency of the boiler. After the end of heating season the boiler must be
thoroughly cleaned.
4.) The minerals contained in wood pellets may produce hard deposits in the furnace on the rotary part of the
burner during the boiler operation. This can subsequently negatively affect the reliability and quality of the
combustion. It is therefore advisable to check the burner area at least once a week. Should there be any
hard deposits found on the burner, it needs to be removed and the deposits removed manually.
5.) Occasional external cleaning of the burner and the feeder is also recommended. This must be done by a
dry brush. The boiler must be disconnected from the power supply during this activity!
6.) The heat-resistant ceramic parts placed in the combustion chamber near the burner must also be
cleaned during the boiler cleaning.
7.) Slight excess pressure is generated in the burner area during the fan operation, it is therefore important
to ensure the boiler is fully sealed (boiler door, boiler top cover, fuel store lid, etc.).
8.) The fuel feeder gearbox is filled by synthetic oil by the manufacturer, its maintenance is therefore not
necessary.
9.) Any maintenance and service must be carried out when the boiler power supply is disconnected and the
boiler is cold.
9. Maintenance, setting and service of the burner
9.1 General instructions
To ensure malfunction free operation and achieve high life span of the burner, observe the following
guidelines:
•
The furnace and the burner should be kept clean by regular cleaning. The frequency of cleaning
depends on the fuel quality, ash and humidity, the number of ignitions and the size of the ash drawer.
On average, cleaning should be done once a week.
•
Use only specified fuel. Burning of other fuels is prohibited.
•
Ensure sufficient fresh air supply to the boiler room.
9.2 Cleaning the tubular aeration rotary chamber
During the boiler operation some products of combustion can pass through the aeration holes into the space
between the furnace pipe and the outer pipe. Depending on the type of fuel used, it is recommended to clean
the area on average every 6 months of the burner operation. To remove the burner follow these steps - see
Figures 11 and 12:
1.
Disconnect the power supply to the burner and feeder external cable from the programmer
2. Open the boiler door to gain access to the furnace pipe.
3. Loosen the screws (6) that secure the cover - 2 pcs.
4. Remove the burner cover (9).
5. Unscrew the locking bolts (7) - 4 pcs.
6. Carefully remove the flange with drives and fan (8).