Worcester GREENSTAR 30CDi Installation, Commissioning And Servicing Instructions page 25

1.
C
3. 4.
EARTH =
E
LIVE =
6.
230V
E L
N
ST10
L L N N L
R S S
L L N N L
R S S
ST10
Fig. 37 Control panel access
CAUTION: Isolate the mains gas supply before starting
any work and observe all relevant safety precautions.
CAUTION: Short circuit
▶ When connecting the cables ensure that no cable
strands fall into the Heatronic.
6 720 806 548 (2013/02)
B
2.
5.
D
D
NEUTRAL =
SWITCHED LIVE =
7.
EXTERNAL
CONTROLS
WIRING CENTRE
ST10
L L N N L
R S S
ST19
ST2
B
B
4
2
FR FS NP LP
1
ST8 A
F
ST6
Code Plug
The mains supply to the boiler must be fed through a
fused double pole isolator situated adjacent to the
appliance.
The isolator must have a contact separation of 3 mm
minimum in all poles.
8. External Pump (ST2):
▶ Connect NEUTRAL wire to terminal (Nz)
▶ Connect LIVE wire to terminal (Lz)
▶ Connect EARTH wire to earth bracket (E)
The system pump must be connected to the appliance
control for the pump over-run facility.
9. Refit control panel cover:
▶ Refit panel and secure with screws (B).
▶ Bring the control panel to its upper position and secure by sliding the
white plastic clip up.
C
3. 4.
8.
EXTERNAL
PUMP
ST2
L
E
L L N N L
R S S
ST10
Fig. 38 Electrical connections
INSTALLATION
5.
D
D
N
ST19
ST2
B
B
4
2
FR FS NP LP
1
ST8 A
F
ST6
Code Plug
25