Bosch Greenstar combi 151 p - Electrical Wiring

10 | Product Description
Greenstar combi 100 p / 151 p6720872361 (2017/04)
3.8 Electrical wiring
Fig. 5 Electrical wiring
Key to Fig. 5:
[1] Ignition transformer
[2] Boiler high limit dial
[3] 120 VAC connection
[4] Fuse T 6.3 A (120 VAC)
[5] DHW thermostat
[6] External safety high limit or low water cut off (LWCO)
[7] BUS connection, e.g. heating control
[8] Room thermostat – dry contact
[9] Outdoor temperature sensor
[10] Code plug
[11] Diagnostic interface
[12] ON/OFF power switch
[13] Gas valve
[14] Fan
[15] Flue gas temperature limiter
[16] Supply temperature sensor
[17] Flame rod electrode
[18] Ignition electrode
[19] Boiler block temperature limiter
[20] DHW temperature sensor
[21] Boiler circulator
[22] 3-way valve (Space heating/DHW heating)
[23] Flow turbine complete
[24] Additional supply temperature limiter
[25] External system supply temperature sensor
L
N
B
B
F
A
6 720 641 933-24.3O
9
8
7
LS NS
4
2
4
6
23
22
6
1
2
3
5
9
7
10
12
13
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24
4
8
6
25
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