Bosch WTD 12-4 AME 23 - Page 27

Page 27 from 45 6 720 887 546 “SM FP_ErP LPP-MPP Europe 2018/05 en”
~0-12VDC
Current =0-160mA
Resistance：80Ω
LPP type gas valve
Polarity must match in the solenoid
Main valve
Yellow-black
Remain open the valve:
14 VDC
Close the valve:0VDC
Resistance：115Ω
MPP type safety valve
Blue-Black
Remain open the valve:
16-18 VDC
Close the valve: 0VDC
Resistance:106.5Ω
LPP type safety valve
Segment valve
Blue-Black
Remain open the
valve:14VDC
Close the valve: 0VDC
Resistance:151Ω
MPP type Segment valve A
Green-Black
Remain open the valve:
16-18 VDC
Close the valve: 0VDC
Resistance:136.5Ω
LPP type Segment valve A
Segment valve
Green -Black
Remain open the valve:
14VDC
Close the valve: 0VDC
Resistance:151Ω
MPP type Segment valve B
Yellow-black
Remain open the valve:
16-18 VDC
Close the valve: 0VDC
Resistance:136.5Ω
LPP type Segment valve B
Table 10 – Electric Values
Attention: all connectors have specific connection or colour coded nevertheless,
modulation valve in gas valve are polarity sensitive and connector to be done as
picture shows below.
Pict 33 – Modulation solenoid with + (red) and – (brown) mark