Maximum Feeder Temperature Detection - Geco GH11RA User Instructions

USER INSTRUCTIONS GH11RA
The Controller waits for the period of time set in the F10 setting, during which it checks whether a rise of
4°C occurs.
If YES, then the burnout detection condition is stopped, and the SH and DHW pumps (if necessary) are
started.
If NOT, this means that the furnace is burned out – the Controller enters the AL13 alarm condition.

5.8. Maximum Feeder Temperature Detection

The GH11RA Controller is equipped with an additional option of protecting from temperature rise in
the fuel feeder above the permissible value to prevent backfires into the fuel feeder.
The detection is active only in the automatic boiler operation mode (AUTO, SUSTAIN).
When the measured temperature exceeds the value set in the F14 service setting, the fuel feeder activates
for the period of time set in the F16 service setting to eject the ignited fuel from the feeder. During the F16
period the fan remains stopped.
When the time set in F15 service setting elapses, the Controller restores the maximum feeder temperature
detection process.
When the feeder T > 90°C, then fan is stopped, the fuel feeder is started for a period of 2xF16, and the
display indicates the alarm condition AL11 – "Maximum feeder temperature exceeded". (⇒ section 6.5
page 5).
The Controller remains in the alarm condition until user response.
IF S14=0, THEN FEEDER SENSOR OPERATION IS OFF AND THE FUNCTION
OF FEEDER MAX. TEMPERATURE INCREASE DETECTION IS NOT ACTIVE.
Wydanie I
STRONA 11
STYCZEŃ 2010