Wiring Diagram - Worcester Greenstar Ri Compact ErP Installation, Commissioning And Servicing Instructions

Fault finding and diagnosis
8.2

Wiring diagram

FAN
FLOW
N L
GAS
VALVE
SAFETY
SOLENOID
Red
G/Y
Blue SAFETY
Orange
SOLENOID
X7
1
56
Fan wiring:
Live = brown
Neutral = blue
NTC
MAINS
SUPPLY
TEMPERATURE
CONTROL AND
RESET
X11 X10
3 1 6 1 4
FLUE
STAT
SPARK
ELECTRODES
FLAME SENSE
ELECTRODE
MAX SAFETY NTC
FLAME SENSE
GROUND
EXTERNAL
PUMP
Neutral
Live
Fuse, slow
F 5A H 230 V
230V
230V
IN OUT
L N L N L N
HCM
DIAGNOSTIC
INPUT
X7
1
AIR PRESSURE
SWITCH
RETURN
NTC
230V WIRING CENTER/
JUNCTION BOX
L N SL
Switched Live
Service Mode
Switch
X8 X12
EMS
LR
Worcester 24V
controls point
X3
13 1 4
Greenstar Ri Compact ErP 6720813282 (2015/07)
6720813282-06.1Wo