Ariterm Biomatic plus 50, Installation, Operation And Maintenance Manual

ARITERM SWEDEN AB

Installation, Operation & Maintenance - 

2009.02.18- 20/32

 Boiler cleaning

Burning solid fuels, even if operation is automated, normally calls for a little more care 

and maintenance than oil heating. For B 20/30 maintenance has been mini-

mized as the result of well planned design and a big ash box holding 50 litres. 

Ash is removed when necessary. The convection parts of the boiler are to be cleaned 

when the flue gas temperature has risen by 20-30˚C above the temperature of a newly 

swept boiler. An alarm reminding you of cleaning can be programmed on the control 

panel.

ATTENTION!

  Pay special attention to the pellets quality when you receive a new delivery or when 

you change supplier.

ATTENTION!

  Show a great care when emptying the ash as it might be glowing hot. Ash must be 

kept in a fireproof container.

The burner

Carry out checks and measures when needed or in connection with boiler cleaning 

according to the following:

Normally, the burn pot does not demand any particular care, but should be 

• 

checked for carbon build-up in connection with ash removal. If necessary scrape 

off any carbonisation.
Put the burner back into place - check carefully that no sealing is damaged. 

• 

 Once a year to once every second year

Clean the primary ring and primary air tube on the inside to remove dust and 

• 

chips. Check the pins of the metering wheel, the toothed wheel and the back stop 

for wear. Adjust and replace if necessary. Lubricate the driving chain with a little 

thin oil.

When new pellet fuel is used, always check the burn pot for sintered ashes (crust of 

ash or gravel and stone-like particles). Such particles must be removed from the burn 

pot at very short intervals to prevent the primary ring from getting overheated and 

damaged. Sintering is caused by impurities in the pellet fuel and a claim should be sent 

to the supplier at once. 

For more information please refer to ”Advice about Fuel Pellets”.

1. Switch off the burner one hour before cleaning.

2. Cleaning the convectional flues. Lift the 
sweeping hatch at the top of the boiler and clean 
the flues with brush. Cleaning is needed few 
times a year.

3. Cleaning brush is included in Ariterm pellet 

boiler delivery.  Move the brush through the flues 

to sweep the ash from flue walls.

4. Optional cleaning device makes the cleaning 
even easier. Pull the adjuster at the top of the 
boiler a few times to sweep the ash from the 

flues.

MAINTENANCE, CARE, SWEEPING