AL Alarm device
BV... Fuel valve
EK1 Lockout reset button
EK2 Remote lockout reset button
FS Flame signal
FSV Flame signal amplifier
K... Contacts of control relay
kbr Cable link (required only
when no oil preheater is used)
LED 3-color signal lamp
M Burner motor
OW Release contact of oil preheater
OH Oil preheater
QRB... Photoresistive flame detector
QRC... Blue-flame detector
bl = blue, br = brown, sw = black
R Control thermostat or
pressurestat
SB Safety limit thermostat
Si External primary fuse
W Limit thermostat or pressure
switch
Z Ignition transformer
TSA Ignition safety time
tw Waiting time
t1 Prepurge time
t1 Purge time
t3 Preignition time
t3n Postignition time
t4 Interval from flame signal to
release of «BV2»
A Start of startup sequence with
burners using an «OH»
A Start of startup sequence with
burners using no «OH»
B Time of flame establishment
C Operating position
D Controlled shutdown by «R»
Color code table for multicolor signal lamp (LED)
Status Color code Color
Waiting time «tw», other waiting states
❍ ................................................................................... Off
Oil preheater on, waiting time «tw»
● ................................................................................... Yellow
Ignition phase, ignition controlled ● ❍ ● ❍ ● ❍ ● ❍ ● ❍ ● ❍ ● ❍ ● ❍ ● ❍ ● ❍ ● ❍ Flashing yellow
Operation, flame o.k. ❑................................................................................... Green
Operation, flame not o.k. ❑ ❍ ❑ ❍ ❑ ❍ ❑ ❍ ❑ ❍ ❑ ❍ ❑ ❍ ❑ ❍ ❑ ❍ ❑ ❍ ❑ ❍ Flashing green
Extraneous light on burner startup
❑ ▲ ❑ ▲ ❑ ▲ ❑ ▲ ❑ ▲ ❑ ▲ ❑ ▲ ❑ ▲ ❑ ▲ ❑ ▲ ❑ ▲ Green-red
Undervoltage ● ▲ ● ▲ ● ▲ ● ▲ ● ▲ ● ▲ ● ▲ ● ▲ ● ▲ ● ▲ ● ▲ Yellow-red
Fault, alarm ▲................................................................................... Red
Error code output (refer to «Error code
table») ▲ ❍ ▲ ❍ ▲ ❍ ▲ ❍ ▲ ❍ ▲ ❍ ▲ ❍ ▲ ❍ Flashing red
Interface diagnostics ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ Red flicker light
Legend: ....... Steady on ▲ Red ❑ Green
❍ Off ● Yellow
Error code table
Red blink code of «AL» at Possible cause
signal lamp (LED)) term. 10
2 blinks on No establishment of flame at the end of «TSA»
- Faulty or soiled fuel valves - Faulty or soiled flame detector
- Poor adjustment of burner, no fuel - Faulty ignition equipment
3 blinks on Free
4 blinks on Extraneous light on burner startup
5 blinks on Free
6 blinks on Free
7 blinks on Too many losses of flame during operation
(limitation of the number of repetitions)- Faulty or soiled fuel valves.
- Faulty or soiled flame detector - Poor adjustment of burner.
8 blinks on Time supervision oil preheater
- Oil preheater failed 5 times during prepurging
9 blinks on Free
10 blinks off Wiring fault or internal fault, output contacts,other faults.
on 3 times temporary fault of the output contacts
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