Programming setting
48
7.7 - ALARMS
Should any operating faults occur, the board intervenes and signals this irregularity operating differently according to the type
of alarm. The following alarms are foreseen.
FLUE GAS PROBE ALARM
ALARM HOT TEMP
ALARM NO FIRE
ALARM NO FIRE
Display viewed
Codes
AL 2
AL 3
AL 5
AL 6
Flue gas temperature probe
Flue gas overtemperature
Failed ignition
Extinction during working phase
Source of alarm
COOL FIRE (see par.7.6.2)
AL 1
Power missing
ALARM DEEP FAIL
AL 8
Feeding screw safety pressure switch
ALARM SAFETY FAIL
AL 7
General safety thermostat
ALARM FAN FAIL
AL 4
Flue gas fan failure
BLACK OUT
AL 1
Blackout
ALARM PRES.
AL 11
Water pressure beyond allowed values
H2O PROBE ALARM
AL 9
Water probe failure
ALARM HOT H2O
AL 10
Water overtemperature
Each alarm condition causes STILE 27 to be extinguished immediately.
The alarm status is reached after 30 seconds and can be reset by pressing the key 3.
7.7.1 - FLUE GAS TEMPERATURE PROBE ALARM
Triggers when the probe detecting flue gas is faulty or disconnected. During the alarm condition, STILE 27 performs the
extinction procedure.
7.7.2 - FLUE GAS OVER TEMPERATURE ALARM
Triggered when the flue gas probe detects a temperature higher than 250°C.
fig. 41
fig. 42
12 : 42
ALARM
SOND
22°C
12 : 42
ALARM
HOT TEMP
22°C
