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Radijator Inženjering d.o.o, 36000 Kraljevo, Živojina Lazića - Solunca br.6, Srbija
tel. +381 36 399 140, fax. +381 36 399 150, http://www.radijator.rs
Picture 13. The representation of the level of the pellets
Now that we have pellets in the combustion chamber and when it’s in the ignition zone
of the heater, we can initiate the boiler.
Initiation is performed by pressing and holding the control button 4 more than 3 seconds.
In the bottom part of this button, the loose material, more precisely pellets symbol is shown.
When starting the ignition, Chc is written on the display, and in these couple of seconds
only the fan works. In this phase, automatic controls are checking if all necessary devices
are actually connected.
The next step is Acc on the display. This is the ignition phase display. Then, except for
the fan, the ignition heater activates which can be seen on the automatic controls because
signaling lights 2 and 7 are on. In the ignition phase, at one point, we can expect the feeder
system to start and the level of the pellets in the chamber to be refilled. Ideally, pellets are
up to the very top of cast iron parts after this refill.
The boiler is in the ignition phase until flue gasses don’t go over the temperature
determined by the F18 parameter. According to factory settings, this temperature is 50°C.
Firstly, smoke appears, and between 7 to 10 minutes flame as well.
Once flue gases exceed the ignition temperature limit, the display shows Stb. This means that the
boiler is in the flame stabilization phase, that is automatic controls are measuring if flue gases have
a sufficient increase in a certain time period. The fan works according to the stabilization phase
parameter, and the chamber is refilled with pellets according to the parameters of the screw feeder
in the stabilization phase. Once this factor is met, the boiler goes into operation mode.
The boiler is in operation mode when nothing is shown on the display except for the current water
temperature in the boiler. Wait 20 to 30 minutes and see if pellets burn at the top of the combustion
chamber. In this period, also monitor the temperature of flue gases. That is done by pressing control
button 1 shortly, button 3, and finally button 2. Then, on the display, the number denoting flue
gases temperature is shown.
To automatic controls, a room thermostat can be connected should the user request. In this case, it
is important to set the room temperature which is the main parameter for the boiler to operate, and
the water temperature in the boiler (70°C). Once the room thermostat is activated, the boiler
primarily requires to increase the room temperature, having in mind that it is limited by the set
