USER INSTRUCTIONS GH11RA STRONA 8
Wydanie I STYCZEŃ 2010
5.2. Automatic Operation Mode
By pressing , you can turn on the automatic operation mode – the Controller lights the upper
indicator on ( ).
5.1.3. Fuel Feeder
In the AUTO mode, the fuel feeder operates according to the values set in the user settings U1 –
“Feeder operation duration” and U2 – “Feeder standstill duration”. Activation and operation of the fuel
feeder is indicated by the lower indicator on .
5.1.4. SH Pump
In the AUTO mode, the SH pump starts when the temperature of the boiler water is higher or equal
to the value set in the F06 service setting (factory setting is 40°C).
Turning the SH pump on and its operation is indicated by a vertical line at the left side of the
Controller main display screen.
The Controller turns off the pump when the water temperature drops to the activation
temperature minus 4°C. (If the SH pump start temperature is 40°C, then the SH pump stop temperature is
36°C).
5.1.5. Fan
In the AUTO mode, the fan runs continuously until the boiler temperature reaches the value set by
the user in the U0 setting. During that period the fan runs at its maximum speed. Activation and operation
of the fan is indicated by the upper indicator on .
5.1.6. SUSTAIN Operation Mode
The Controller gets into that mode when the boiler temperature reaches the value set by the user
in the U0 setting.
This mode of operation is indicated by lighting the lower indicator on ( ).
The fuel feeder and fan remain off in that mode for the period set by the user in the U3 setting. When the
period ends, the Controller turns on the feeder and fan for the period set by the manufacturer in the F20
service setting.
The fan will operate for the period respectively longer that the feeder for the time set in the F18 service
setting in order to fire up the added coal.
The Controller will exit the SUSTAIN mode and return to the AUTO mode if the boiler temperature drops to
the value equal to the U0 – F05.
The SH pump operates identically as in the AUTO mode.
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