Worcester GREENSTAR II HE OIL 12/22 Installation And Servicing Instructions page 16

Fig. 22. Pre-wired Remote 'Y' Plan or 'S' Plan.
NOTE: When using a WHS programmer set the switch on the rear of the programmer to 'P'.
Remove link 1 to 3
Remote Pre-wired
Junction Box
10 WAY JUNCTION BOX
Earth
Neutral
Permanent Live
Switched Live
L N E E N 1 2 3 4 5 6
Burner Socket
16
NOTE: If a frost thermostat is required it
can be wired to the remote junction box.
NOTE: The 10 way junction box must be
a terminal block type and current rated
to at least 5 amps.
OUTSIDE BOILER
INSIDE BOILER
7 8 9 10
Optional
Worcester
Programmer
HEAT SYSTEMS
OFF OFF
HOT
HEATING
TWICE PM TWICE
WATER
ONCE ONCE
ADVANCE
TUE
ADVANCE ON ON
SELECT LOCK SET? YES SELECT