Electrical Wiring - Bosch Greenstar combi 100 p Installation And Service Instructions For Contractors

10 | Product Description
3.8

Electrical wiring

14
6
15
13
3
2
1
12
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
6720872361 (2017/04)
17 18
16
19
20
LS NS
N L
4
11
21
22
5
B
7
B
4
8
2
F
9
A
6
10
[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
23
24
6
4
25
6 720 641 933-24.3O
Greenstar combi 100 p / 151 p