Circuit Diagram - Worcester GREENSTAR Ri Installation And Servicing Instructions

7.1.1

CIRCUIT DIAGRAM

PRESSURE
SWITCH
GAS
VALVE
SAFETY
SOLENOID
SAFETY
SOLENOID
SPARK
TRANSFORMER
ON/OFF
SWITCH
Slow 2 A fuse,
AC 230 V
F1
ST1
L N
Earth
MAINS
SUPPLY
6 720 644 744a (2010/10)
† Fan wiring:
Live = purple
Neutral = brown
FAN
OVERHEAT
F2 Slow T1.25 A fuse
25V
230V/AC
DIAGNOSTIC
INTERFACE
ST2 ST6
ST5
LP NP LR
Colour sequence †
SL
N
L
230V WIRING CENTER/
JUNCTION BOX
FLOW TEMP.
SENSOR (NTC)
FLUE
STAT
CODE
PLUG
Max
M n Norm
MODE
SWITCH
EXTERNAL
PUMP
FAULT FINDING AND DIAGNOSIS
FLAME SENSE
ELECTRODE
OVERHEAT
STAT
SPARK
ELECTRODES
CH TEMPERATURE
CONTROL
ST9
Green
Red
Blue
Violet
Orange
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