Fault Finding And Diagrams; Electrical Wiring Diagram - Worcester Greenstar Highflow 440CDi ERP Installation, Commissioning And Servicing Instructions

7

FAULT FINDING AND DIAGRAMS

7.1

Electrical wiring diagram

PRE WIRED LINK
Purple
Black
White
Red
Yellow
White
Pink
Red
Yellow
Black
Green
Orange
Violet
Blue
Black
Green
Yellow
Blue
Orange
Red
NC
External volt free
programmer option
6720818077 (2016/04) -
Greenstar Highflow CDi
CODE PLUG
ST18
ST9 WORCESTER 24V CONTROLS
OPTION, PLUG IN POINT
(under blanking cover on fascia)
ST17
EXTERNAL
FROST STAT
(OPTIONAL)
ST8
ST6
F
A
LP NP FS FR ST4
1
2
4
B
B
DHW TEMPERATURE
CONTROL
Wall plate contacts
(for Sense controls)
B B
PUMP SUPPLY
Colour sequence
Outside sensor
(Sense control)
NO
C
FAN
TANK
TANK
OVERHEAT
SENSOR
FLOW
TURBINE
DHW
SENSOR
ErP
DIAGNOSTIC
ST1
INTERFACE
EMS BUS contacts
(for Sense controls)
Fuse F1, slow
T2.5 A, H 230 V
ST10
L N N L L
S S R
ST5
CH TEMPERATURE
CONTROL
Colour sequence
MAINS
SUPPLY
FLAME SENSE SPARK
ELECTRODE ELECTRODES
FLOW NTC
OVERHEAT
GAS
DIVERTER
VALVE
VALVE
SAFETY
SOLENOID
HIGH LEVEL
SAFETY
SENSOR
SOLENOID
CONDENSATE
PUMP
FAULT FINDING AND DIAGRAMS
230V HW interface
(Installer Module)
located to the right
of the control panel
230V~
C
SPARK
TRANSFORMER
Earth
CH
External 230V twin
channel programmer
option
STAT
PUMP
NO
NC
DHW
43