IT
ES
Blinking red fan fault led. 30 minutes after the fan turns off, the board attempts
GB
to restart it. To identify where the fault occurred in sequence/cascade installations,
turn the CR/OFF/INV/RELEASE selector on each module to the (
Red ignition lock led:
turn the CR/OFF/INV/RELEASE
selector to the release ( ) position
to restore operations
Green led off without
power supply
Safety/exhaust thermostat triggered blinking
red led. Turn the CR/OFF/INV/RELEASE
selector to the release ( ) position
to restore operations
Blinking red air pressure switch fault led
1
3
12
5
14
15
78
and check where the red fault led blinks.
11
9
) position
No communication with
"Logical Remote Control"
blinking red led
Flame detection circuit fault blinking red led
Heating probe fault blinking red led (SM)
(*) If all 0.5 to 2.5 bar leds are off, check water pressure
transducer connections.
WARNING: the operation of plants with open vessels is
guaranteed only for static pressures above 0.7 bar.
10
8
X25
16
X4
13
17
6
Insufficient water pressure
blinking red led (*)
System safety valve triggered
blinking red led (*)
6
10
KEY
1 1 Ignition grounding electrode faston
3 Fuse (1,6 AT)
5 "ANN. RIT." connector
6 "POT. ACC." trimmer
8 Hot water potentiometer
9 Detection electrode faston
10 "POT. RISC." trimmer
11 Heat potentiometer
12 CR/OFF/INV/RELEASE selector
13 DIP SWITCH
14 "Modureg Sel." connector
15 Albatros connector
16 X25 connector
17 X4 connector
NOTE:
To turn on adjustment trimmers (6) and
(10), pull out the heat potentiometer
knob.
Fig. 14
Fig. 15