Pellet burner GP xx sc 28
When the control module receives signal to stop the operation of a pellet
burner from series “GP xx sc” the fuel supply stops, but the firing air feeding fan
continues to operate. Therefore after confirmation of the stopping procedure the
burner continues to operate and to generate heat energy, which makes it inert,
respectively the system in which it operates is also inert. This specific feature has
to be taken in mind especially if the heating radiators are equipped with
thermostatic valves (or other control components), which close the circulations
water flow. As a result of this process it is possible that the generated heat
energy, from the fuel final combustion, can’t be adopted by the heating system
(can’t be unloaded) and to lead to overheating of the appliance. Therefore in case
the pellet burner from series “GP xx sc” is operated in heating systems with
radiator regulation valves, it is necessary not to completely close the radiator
valves, but to adjust them to minimum value. Also one of the radiators should not
be equipped with regulation valve, in order to ensure adoption of the heat energy
generated during the process of final combustion.
6.5.
SWITCHING OFF A PELLET BURNER FROM SERIES “GP XX SC” THROUGH
EXTERNAL MODULE, MANAGING ITS OPERATION.
The burner stopping could be performed through an external module or through the
procedure described in the chapter above. When the burner transits from burning mode to
standby mode or to switched OFF mode, then its managing control module performs the so
called “controlled stopping”, during which the firing air feeding fan continues to operate and
the control module monitors for emergency signals. After cooling of the burner it has to be
switched OFF through its power supply. It is also recommended to clean the system - burner
and consuming appliance, from the ash deposits.
6.5.1.
EMERGENCY SHUT DOWN OF A PELLET BURNER FROM SERIES “GP XX
SC”.
During operation of the burner emergency situations might occur, as the burner will transit to
emergency mode. Such types of situations are indicated by the burner’s control module,
which automatically performs prevention procedures. The burner’s control module transits to
emergency mode, which is indicated with a relevant failure code message on the burner’s
display panel. Descriptions of the failure codes and other messages are presented in Table
7.2. Description of the possible failures, shown on the control module’s display panel, of a
pellet burner from series “GP xx sc”, is also presented in Table 7.3.
If emergency situation occurs the failure code, indicated on the control module’s display
panel, has to be checked and the relevant corrective measures should be performed. After
that the burner has to be restarted through switching OFF and then back ON its power
supply.
If the consuming appliance, to which the burner is mounted, has been overheated
(emergency situation) its emergency thermostat activates. This thermostat is a
MANDATORY equipment and is not included in the burner’s standard delivery kit.
The reason for the emergency situation has to be determined and the relevant
corrective measures have to be performed. The emergency thermostat has to be
switched back manually, in order to supply the burner with power again.
In case the burner’s pellet feeding inlet pipe has been overheated (also treated as
an emergency situation) the sensor, which monitors the temperature in this zone
and protects the transport auger from the so called “back fire”, activates. After
cooling of the burner’s main module the cause for the emergency has to be
determined and the relevant corrective actions have to be performed. After
removing the reason for emergency, in this case overheating of the burner’s fuel
inlet pipe, the security sensor in that zone might be damaged, as it may requires
replacement.
Summary of Contents for GP 18 sc
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