GH10TA USER MANUAL
PAGE
12
Issue I
July 2017
6.5.
Alarm Conditions
The Controller uses 8 different alarm conditions. In each alarm condition, the Controller displays the
alarm number and activates the alarm sound output. In case of several alarm conditions occurring
simultaneously, their numbers are displayed in sequence. You can exit an alarm condition only by pressing
. This does not include the AL12 alarm condition.
Alarm conditions:
•
AL1
→
STB activated or fuse blown
•
AL2
→
Boiler water outlet temperature sensor failure
•
AL3
→
Feeder temperature sensor failure
•
AL4
→
HUW/return temperature sensor failure
•
AL9
→
No feeder rotation / reed switch failure
•
AL11
→
Maximum feeder temperature exceeded
•
AL12
→
Boiler overheating
•
AL13
→
Boiler burnout
6.6.
Power Failure
After a power failure the Controller starts to reactivate according to the condition it was in before the
power down. The Controller waits 1 minute to stabilise the mains power parameters, and then restores
operation with the previously programmed settings.
During the waiting period, the display shows time in seconds remaining until the end of the period,
along with indication of its condition before the power outage:
•
blinking “A” for AUTO mode,
•
blinking “P” for MAINTAIN mode,
•
blinking “r” for MANUAL mode.
Respective indicators (AUTO
or MAINTAIN
) are blinking along with the letters.