Valtis Ogrevanje d.o.o. Instructions for installers and maintenance workers
8. The parameter menu is closed by pressing the key no. 5 for 3s or more
After the parameters have been changed, it is necessary to lock the electronics for safety reasons.
This is done by repeating steps 1-4 and changing the values for P1A and P1d (different from
10:03).
Now the furnace is ready for start-up. First, perform a dry run. The purpose of this is to check that
all electronic components are working correctly. Start-up and control procedure:
•Close the door and press the power button (no. 1). Blov is displayed on the screen and the
seconds count down below. At this stage, check if the fan is rotating.
•The next step is to check the primary and secondary air flaps. Look through the lid (with
the λcut out) to see if the flaps have started to open. The upper flap regulates the primary
air and the lower flap the secondary air. The opening procedure at switch-on is as follows:
oThe lower flap remains closed.
oTop hatch opens to 100%
When the sensor detects a fire in the firebox, it starts to regulate both flaps. In the first
stage, the primary air flap will be almost fully open (it must reach a fume temperature of
180 °C). When the boiler reaches an operating temperature of 180 °C, it starts to close the
primary air flap and open the secondary air flap.
Check that the mixing valve backflow preventer is correctly connected (at this stage it must
be actuated by the electronics).
•Next comes the start-up. Explain to the customer which button to press for start-up, how
to load the wood and the recommended burning procedure.
We explain to the customer that the door must be closed at all times, except when refuelling. To
control the combustion, press the button no. 2, with which the temperature of the fumes and the
return duct are checked. If this temperature does not rise within the first 15 minutes, then repeat
the firing process.
FUEL
The fuel used in the boiler must be firewood with a maximum length of 500 mm and an average diameter
of 10 cm. Round pieces of wood smaller than 8 cm are not split, but can be placed between the firewood.
All types of wood with a maximum moisture content of 20% can be burned. The boiler output is
determined by the type and dryness of the firewood.
