Electrical Wiring Diagram - Bosch Worchester GREENSTAR ZWB 7-27 HE combi Installation And Servicing Instructions

Details of the appliance
1.8

Electrical wiring diagram

364
25 V
230 V
153
135
230V/AC
328
L N Ns
302
mains supply
Fig. 4
4.1 Ignition transformer
6 Temperature limiter, heat exchanger
6.1 Hot water NTC sensor
9 Flue gas temperature limiter
18 Pump
32 Flame sensing electrode
33 Ignition electrode
36 Temperature sensor in CH flow
52 Solenoid valve 1
52.1 Solenoid valve 2
56 Gas valve CE 427
61 Reset button
84 Motor, 3-way valve
96 Microswitch, hydraulic switch
135 Master switch
136 Temperature control for CH flow
151 Fuse, slow 2.5 A, AC 230 V
153 Transformer
8
o - orange g - green bl - black
33
365
4.1
136 310
151
Ls LR
328.1
M
M
226
18
61 317 366
312
315
313
1 2 4 7 8 9
300
161
9
52
161 Link
226 Fan
300 Code plug
302 Earth connection
310 Temperature control for hot water
312 Fuse, slow T 1,6 A
313 Fuse, slow T 0,5 A
314 Connector for programmer
315 Terminal block for programmer
317 Digital display
318 Connector for timer
328 Terminal block for AC 230 V Mains supply
328.1 Link
363 Indicator lamp for burner
364 Indicator lamp for power supply
365 "Chimney sweep" button
366 Service button
367 ECO button
r - red p - purple
363
367
ECO
318
314
6
r
r
o
52.1
56
o
36
bl
bl
bl 32
bl
bl
6 720 610 576-08.2O
6 720 610 576 GB (02.05)
84
p
M
p
p
96
g
g
o
o
6.1