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10777 - GB-CZ-HU-PL-RO-RU - 0 - 04 / 07
Programming unit LMO24, two stage burner
N Neutral
M Burner earth
L Phase
AL Alarm *
CH Hour counter*
CH1 Hour counter 1
st
stage*(burner two stage)
CH1 Hour counter 2
nd
stage*(burner two stage)
R1 Limiter thermostat*
R2 Regulator thermostat*
TA Ignition transformer
cPr Photoconductive cell
MVB Burner fan motor
MMA Air micro motor
V1F Fuel shutoff valve
V1F Fuel 1
st
stage valve (burner two stage)
V2F Fuel 2
nd
stage(burner two stage)
* not supplied
10.3
Breakdown cause diagnostics
After setting on safety, the red indicator light stays red, continuously on. In this condition the visual diagnostics of breakdown
causes can be activated by pressing the unlocking button for > 3 seconds, according to the breakdown causes table.
10.1
Possible connections for
Programming unit LMO14, one stage burner
Programming unit LMO24, two stage burner
10.2
Schmas de cablage
Programming unit LMO14, one stage burner
MVB V1F TA
cPr
1 2 3 4 5 6 7 8 9 10 11 12
B4 S3 T2 T1 N
L1
11 WIRING DIAGRAMS
Flashing
Possible cause
Flashing 2 x
zz
No flame at the end of stand-by time
- faulty or clogged oil valves
- faulty or clogged flame detector
- burner badly set, no oil
- faulty igniter
Flashing 3 x
zzz
Free
Flashing 4 x
zzzz
Stray light when burner starts
Flashing 5 x
zzzzz
Free
Flashing 6 x
zzzzzz
Free
Flashing 7x
zzzzzzz
No flame too often during operation (repeats limited)
- faulty or clogged oil valves
- faulty or clogged flame detector
- burner badly set
Flashing 9 x
zzzzzzzzzz
Free
Flashing 10 x
zzzzzzzzzzz
Wiring fault or internal fault, output contacts
Alarm
Hour counter
N
N
S3
B4
AL
CH
B4 S3 T2 T1 N
L1
B5 T6 T7 T8
CH1
AL
CH2