7219717 - 02 (08/15)
EcoBlue Heat
17
Technical Specification
3
3.4
Electrical Diagram
Gas Valve
Safety
Thermostat
Return
Sensor
Flow
Sensor
Parameter
Unit
Pressure Switch
(where fitted)
Electrode
User Interaction
Controller
r
b
br
b
g/y
g/y
r
Not used
“Socket & See”
Electrical Test Point
Mains
g/y
br
b
Loop Connector
(where no pressure
switch fitted)
Key To Wiring Colours
b
- Blue
r
- Red
br
- Brown
g/y - Green/Yellow
All other wires are black
FROM
TO
COLOUR
LINK
PRESURE SWITCH
PRESURE SWITCH
COMBI ONLY
COMBI ONLY
COMBI ONLY
FLOW TEMP
FLOW TEMP
RETURN TEMP
RETURN TEMP
FLOW SENSOR
FLOW SENSOR
FLOW SENSOR
HIGH LIMIT
BLACK
BLACK
BLACK
BLACK
BLUE
RED
PSU
PSU
PSU
PSU
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
HIGH LIMIT
1
2
3
4
5
6
7
8
9
10
11
12
13
13
1
2
3
4
5
6
7
8
9
10
11
12