6 720 611 137 GB (03.02)
8
Details of the appliance
1.8
Electrical wiring diagram
Fig. 4
4.1
Ignition transformer
4.4
Y-S-module
6
Temperature limiter, heat exchanger
9
Flue gas temperature limiter
32
Flame sensing electrode
33
Ignition electrode
36
Temperature sensor in primary flow
52
Solenoid valve 1
52.1
Solenoid valve 2
56
Gas valve CE 427
61
Reset button
135
Master switch
136
Temperature control for boiler flow
151
Fuse, slow 2.5 A, AC 230 V
153
Transformer
161
Link
226
Fan
300
Code plug
302
Earth connection
310
Function control (Service only)
312
Fuse, slow T 1,6 A
313
Fuse, slow T 0,5 A
317
Digital display
328
Terminal block for AC 230 V Mains supply
363
Indicator lamp for burner
364
Indicator lamp for power supply
365
“Chimney sweep” button
366
Service button
367
No function
6
9
32
33
36
52.1
52
56
61
230 V
135
25 V
230V/AC
153
136
151
1 2 4 7 8 9
161
M
226
300
L N
Ls
Ns
328
LR
302
310
312
313
317
363
364
365
366
ECO
367
4.1
6 720 611 137-03.1O
mains supply
r
r
bl
bl
bl
bl
o
o
o - orange bl - black r - red
4.4
