Ferroli SUN G20, Operating, Installation And Maintenance Instructions

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SUN G20
42
Cod. 35442633 - 01/2007 (Rev. 00)
3 8 6 1 2
N
4 5 7
SQN 70.244A20
TR MB
FR
VE 1 VE 2
T1 T2 B4 S3 L1 N
T7 B5 T6 T8
N L1 B4 S3 T2 T1
W
h
Ph
IG
N N N
BZ 1
F
TS
LS
TR1
T7 B5 T6
6
2
9 10 4
11
7 1
12
3
5
8
T8
M
1
N
BZ 2
TR2
W
h
SC
PB
SQN
LM024
4.5 Wiring diagram
Key
BZ1 1st-stage hour meter
BZ2 2nd-stage hour meter
F Fuse
FR Photo-cell
IG Main switch
LS Safety lamp
MB Burner motor
PB Burner socket
SC Plug
TR1 1st-stage boiler thermostat
TR Ignition transformer
TS Safety thermostat
TR2 2nd-stage thermostat
VE1 1st-stage electromagnetic valve
VE2 2nd-stage electromagnetic valve
SQN Servomotor
fig. 13