2.
Function principle
The principle of works of MPB Pro burners is based on providing fuel via steering the feeders
appropriately and the work of a fan which steers the burning process.
Burners have 3 ways of operating:
Single mode
: The burner reaches the desired “HEATING WATER TEMPERATURE “(i.e 65
o
C) and
burns off. Then, it starts its operation again when the temperature of the boiler goes down to
the temperature “HEATING WATER TEMPERATURE - CH FURNACE HYSTERESIS” (65
o
C - 10
o
C=
55
o
C. The CH FURNACE HYSTERESIS must be more than 10
o
C
Continuous mode
: The burner reaches the desired “HEATING WATER TEMPERATURE “ and
goes down at 3kW (maintain).When the boiler's temperature goes down to the temperature
“HEATING WATER TEMPERATURE - CH FURNACE HYSTERESIS”, the burner increases its power
from 3kW (maintain) to the maximum burner power (i.e30kW). The CH FURNACE HYSTERESIS
must be no more than 5
o
C
Analogue mode
: The burner reduces its power 1/3 (for example: from 30kW to 21kW) 10
o
C
before the furnace reaches the “HEATING WATER TEMPERATURE “. When the temperature of
the furnace is 510
o
C before “HEATING WATER TEMPERATURE “, the burner reduces its power
again 1/3 ((for example: from 21kW to 12kW).
After reaching a particular temperature of the heating water, the driver goes into the mode of
sustaining the temperature or switches the burner completely off. The ignition of fuel starts
automatically with the help of igniter which is connected to this driver. The regulator operates
also on the useful warm water buffer. The WUW pump starts working when the regulator detects
too low temperature of the WUW buffer. It is also possible to stipulate the working mode of the
WUW pump – with a priority or without it. The driver enables the control of the furnace's work
thanks to the room thermostat. It is possible to steer the heating in relation to the actual
temperature in the room. The regulator is also equipped with the self-control systems (detecting
the malfunction of the temperature's sensors) and mechanisms monitoring the furnace's work
preventing from going beyond the range of safety for the installation of the central heating.
