AIR HEATER PELLET STOVE BY GEKASMETAL
Page 20
<CONSTANT HOLD>
When the area temperature equals the one requested (or slightly higher than 0,5
ο
C), then the appliance enters
<CONSTANT HOLD>
phase for a few minutes. This happens
because a solid fuel system has not the same ignition flexibility as a liquid or gas fuel system. Therefore, a common practice is the attempt for reduction of ignitions. To
achieve this, the control system, after disabling the operation orders, enters a hold phase during which it preserves the flame, so that the return in
<OPERATION>
phase
would be instant, as soon as an order appears. During this phase the
fume inhibitor
*
is enabled from
<OPERATION>
phase. The supplier and the combustion fan function
according to electric power of that period. Then it moves to the next phase.
*
Fume inhibitor
The electric power of the system in this phase, whether setted automatically or manually, is affected by the fume temperature signal, if it is enabled. In this case there is a
system which protects from very high or low fume temperatures. This system is called fume inhibitor. These settings concern some temperature limits which, if the fume
temperature signal exceed, the control system starts increasing or decreasing its power in order to reset the fume temperature within the limits. This operation may better be
explained through an example.
<FINAL CLEANING>
During this phase the control system cleans the combustion chamber, in order to be empty for the next ignition.
The control system remains in this phase for a specific time period. If, during this time period, the fume temperature drops below the
“
deactivation temperature
”
, then the
phase is being terminated and the controller moves to
<INERTIA>
phase.
The combustion fans, during the entrance of the control system in this phase and for a small period of time, preserve their former speed. After this period of time and for the
rest of the phase the combustion fan functions with maximum speed. The supplier is being disabled.
7.
ERRORS
Error codes
Description
Cause
Function
E01
Memory failure
Malfunction of the control system.
•
The system fails to start up and all functions remain disabled.
•
This error CANNOT be disabled.
•
If the error is not permanent, the controller restarts after reset
of voltage supply.
Ε05
External error
The entry signal contact
external error
has been opened.
• The boiler is being deactivated
.
•
The exit functions remain activated.
•
The entry signals remain activated.
• The
system does not return in function if the error has not been
removed by the user.
Ε11
Area Sensor 1
Area temperature 1
sensor is
disconnected, shorted or open.
• The boiler is being deactivated
.
•
The exit functions remain activated.
• The
remaining exit functions are being disabled.
•
The entry signals remain activated.
• The
system does not return in function if the error has not been
removed by the user.
Ε13
Fume Sensor
Fume temperature
sensor is
disconnected, shorted or open.
•
The boiler is being deactivated.
•
The exit functions remain activated.
• The
remaining exit functions are being disabled.
•
The entry signals remain activated.
•
The system does not return in function if the error has not been
removed by the user.
Ε15
Speeds sensor
The
combustion fan
does not function or
the speeds sensor presents failure.
• The boiler is being deactivated
.
•
The exit functions remain activated.
•
The remaining exit functions are being disabled.
•
The entry signals remain activated.
• The
system does not return in function if the error has not been
removed by the user.
Ε20
Startup Failure
During
<FLAME HOLD>
phase
fume
temperature
failed to be increased as
much as needed, within the time limits of
• The boiler is being deactivated
.
•
The exit functions remain activated.
•
The entry signals remain activated.
