
10
After setting the parameter boiler regulation
mode = 3 (emission sensor must be
connected).
This method is based on emission sensor
indications T3. It consists in constant,
smooth modulation of the fan revolutions in
order to stabilize the preset emission
temperature. As opposed to the boiler
regulation mode = 2, the airflow operation is
more stable, without excessive increasing of
the airflow power, which makes that method
more economical in respect of fuel saving.
After loading the fuel and pushing the START
button, the fan operates with maximum
revolutions . As the preset emission
temperature is approached, the revolutions
are automatically reduced. When the
emission temperature reaches the preset
temperature for the first time, a slight
adjustment is made.
In the PID EMISSION mode, it is possible to
temporarily increase the emission preset
temperature. This facilitates firing the boiler
up. Thanks to this, the temperature in the
heated rooms will increase faster, without
the necessity of going to the boiler room
later on, in order to decrease the boiler
power. To temporarily increase the boiler
power, for e.g. 30 min, enable the fan using
the START button, than push the START
button again and hold it for 2 s. The boiler
symbol at the display starts to flash Drawing
3. The preset emission temperature
After time
r8 (service parameter), the preset emission
temperature returns to the set value.
Drawing 3. Temporary power increase in the PID
EMISSION mode
Moreover, after equipping the regulator with
an emission sensor, it is possible to enable
very fast detection of fuel shortage. This
provides additional saving of heat energy
resulting from almost instantaneous
deactivation of the fan when the fuel runs
out. Also, the fuel needs not be added
quickly, as fast detection of the lack of fuel
maintains glow in the boiler furnace for a
longer time.
In order to preset the emission temperature,
window appears:
Drawing 4. Presetting emission temperature
- buttons to respectively
increase or decrease the preset emission
temperature; please note that the value in
the upper part of the thermometer symbol,
e.g.: Unless the boiler
manufacturer specified otherwise, the preset
emission temperature should generally be
Whereas in order to
achieve higher boiler power, it might be
necessary to set greater values (e.g. during
very frosty weather).
The optimal preset emission temperature
depends on the type of fuel and the boiler
design, and it should be determined
experimentally. When burning wood, the
flame should be blue-yellow, and when
burning coal yellowish. For example, the
optimal temperature for wood is between
Setting emission temperatures
involve the risk of water condensing
out of the emission, which can
necessitate chimney renovation.
The same applies to presetting
excessively high temperatures of
water in the boiler. PLUM sp. z o.o.
company recommends to operate
the boiler at optimal parameters
(optimal emission and boiler
temperature), combined with
storing of excessive energy in a
thermal buffer.