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4.5 Wiring diagram
15
14
Key
BZ1 1st-stage hour meter
BZ2 2nd-stage hour meter
FR
Photo-cell
LS
Safety lamp
MB
Burner motor
TR
Ignition transformer
VE1 1st-stage electromagnetic valve
VE2 2nd-stage electromagnetic valve
MS
Servomotor
42
TR
FR
12
9
8
7
6
5
11
10
13
12
11
10
9
8
7
6
5
4
3
2
1
L N
LS
TR2
TR1
N
L N
h
h
BZ2
BZ1
N
N
Cod. 35445644 - 08/2007 (Rev. 00)
VE1
VE2
4
3
2
1
LMO 44
1L1 3L2 5L3 13NO A1
SL
L
L L
3
2
1
2L1 4T2 6T3 14NO A2
M
MB
3
3
- 400V
L
L
L
3
2
1
fig. 13
TR1 1st-stage thermostat
TR2 2nd-stage thermostat
SL
Remote control switch
SUN G50 - G70
N
8
4
1
5
3
1L1 3L2 5L3 13NO A1
SL
2L1 4T2 6T3 14NO A2
M
MB
3
D 3
- 230V
2
7
6
MS
GB
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