Boiler Internal Wiring - Potterton Envoy System 30 Installation & Service Instructions Manual

6. Boiler Internal Wiring - Page 28
Dr y Fire Sensor
Return Temp. Sensor
Flow Temp. Sensor
In - Line Connector
Case Temp. Sensor
Bk - Black
Bn - Brown
Rd - Red
Or - Orange
Yl- Y ellow
Gn - Green
Bl - Blue
Vt - Violet
Gy - Grey
W h - White
Gn / Yl - Green /
EN0041A
Fig.25

28 Boiler Internal Wiring

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J22
6 5
JP5
4 3 J19
Gy
1
Gy
2 1
Or
Or
4 3
JP4
Rd 1
2
Rd
JP3
2 1
J20
Yl
1
Yl
4
JP2
2
J24
1 2 3 4 5
J2
Rd Gn Bl
Wh Bn
Fan Coil 1
- Aux
+ Aux
Hall Sensor out
Fan Coil 2
Fan Assembly
3
2
Bn
Bl
2 3 4 5
Gn/ Yl
Bn
Bl
2 3 4 5
Gn/ Yl
Bl
3 Bl
Wh
1
5 Gn/ Yl
4
3 Bl
2
1 Bn
L N
SwL
In - Line Connector
Bn
Bl
Pump
Gn/ Yl
Gas Valve Assembly
GV1 GV2
Gas Valve Earth
24v
Hot Surface Ignitor
Flame Electrode
Or
Case Earth
E 1 2 3 4
Publication No. 559787