Instruction manual for installation and operation of automatic pellet burner “ERATO GP20+”
(Version : 02.02.2010 10:36) p. 33/50
Explanation : In case of changing the thermal capacity of the burner it is
recommended to adjust the air flow rate as well, by adjusting the position of air
flow control flap. In principal a decrease of the thermal capacity will require
lower air flow rate and vice versa. Decreasing the air flow rate is performed by
closing the air flow control flap, respectively – the increase of the air flow rate
is realized by opening that flap. However, in practice a thermal capacity
variation of around 20% is considered in the operating range and air flow
control flap adjustment is not required;
ATTENTION: precise adjustment of operating parameters, which define the
thermal capacity and overall performance of the burner, should be done by a
trained technician, eventually customer. It is recommended to perform such an
adjustment procedure by utilizing data, derived by inflow flue gas measurement
of gas-analyzer;
5.4. Stopping the pellet burner
Stopping the operation of the burner should be performed by turning OFF the
“START” signal from the control module of the heat consumer unit.
Respectively, the starting process should be invoked by turning ON the
“START” signal of that control module. In case that the heat consumer is a hot
water boiler this “START” signal is actually the status of the operating
thermostat of the boiler. In case that the burner will not operate for a relatively
long period of time, it is recommended to shut down the central power supply of
the unit and clean the ash deposited in the combustion chamber, beneath it, as
well as other surfaces of the combustion chamber, the photosensor should be
checked/cleaned as well.
ATTENTION: In case that the burner will not operate for a long period of
time, then thorough ash deposit cleaning procedure should be performed. The
ash layer acts corrosively on the carbon steel surfaces, which will lead to a
decrease of the lifetime of the burner’s main module. It is obligatory to perform
service procedures and preventive observations of the unit by trained service
personal only as well as thorough cleaning at the end of the heating season.
Completing these requirements will ensure long exploitation duration of the
burner and its high efficiency and reliability.
5.5. Turning the burner OFF
The pellet burner is turned off by changing the “START” signal status into
OFF, supplied by the control module of the heat consumer unit. During the
working process in OFF state, the control module of the burner performs so
called “controlled turning off procedure” in which the air fan is working (and
the burner is cooled down) and operating parameters are simultaneously
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