●
Prior to starting up the boiler, it is necessary to ensure that the water supply is connected to the
retrograde combustion (back burn) valve. (See section 1.16 - retrograde combustion (back burn)
valve).
●
It is necessary to ensure that the ignition/fuel arc (pos. 9, fig. 1.1) is pushed right back.
●
The hopper lid must be closed, since this hinders retrograde combustion (back burn). The packing
in the hopper lid must be closed and air-tight, and this must be controlled regularly (once per
year).
The built-in micro-switch likewise ensures that the boiler cannot run without the lid being closed.
Suggested settings are indicated on page 13.
●
You ought to aim that the smoke temperature does not exceed 220°C.
●
You must likewise ensure that the smoke temperature does not fall so low that condensation is
formed in the chimney. (Remove 1-2 turbulators if necessary.)
This temperature is dependent on the chimney's diameter and insulation.
The recommended smoke gas temperature setting for firing with grain is min. 130°C.
●
There is a built-in alarm in the control which will indicate an alarm if the smoke temperature is
below 100° C for more than 30 min.
●
If the house's chimney is such that condensation forms, some turbulators can be removed
to increase the smoke gas temperature in order to counter the condensation. The boiler has,
however, been tested and approved with all turbulators installed. Efficiency is reduced and fuel
consumption increased when turbulators are removed.
1.5 Ignition
1.5.1 Wood chips and pellets:
Move the fuel forwards so that there is a pile of about 5-6 handfuls inside the combustion chamber and
the control is set on OFF.
Pour lighter fuel over the fuel and ignite.
When the fuel is ignited and in flame, with an open door, set the control to ON, then close the door and
the boiler is in operation.
(Here it is possible to open the hopper door slightly so that the combustion worm conveyor/auger does
not start up immediately). When a proper "blaze" has been established in the combustion chamber,
carefully close the hopper door again.
NB: Never leave the boiler with an open hopper door.
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