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Janfire
pelletswärme
8 Control of heating
8.1 Need of control
•
Because of permanent changing weather conditions the output of the heating system has to
adjusted automatically.
•
Heating control is needed to run the heating system with the highest efficiency.
•
For adjusting the temperature of a room according to its use.
8.2 Mode of operation
There are several modes of operation for a heating controller. We like to introduce some of them:
8.2.1 Alternating Start - Stop - operation
The burner is controlled by a switch. If the temperature rises above the triggered temperature of the
switch the burner will stop. If the temperature of the boiler falls below the triggered temperature the
burner will start again.
This kind of regulation is very inefficient and uncomfortable.
8.2.2 Modulating operation
The burner can be equipped with a modulation sensor. This sensor enables the burner to adjust the
power output level according to the water temperature. The set point is adjusted in the burner menu.
By modulating the power output the controller of the burner tries to keep the boiler temperature
constant.
An additional outside temperature sensor can be added to the burner too.
8.2.3 Operation with external controller
The pellet burner can be controlled by an external controller too. Because of this the Combiflame
can be integrated in a solar system easily.
The Combiflame may not be used without a not adjustable return tempera-
!
ture increase. The minimal temperature of the return flow is 55°C.
Janfire 06.2011
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