Worcester 12/14 Installation And Servicing Instructions page 17

Fig. 17. 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 ).
NOTE: Remove link 1 to 3 and link 2 to 4 and make link 3 to 4
External Pump
(disconnect and remove)
Remote Pre-wired
Junction Box
X
10 WAY JUNCTION BOX
Earth
Neutral
Permanent Live
Switched Live
L N E E N 1
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.
2 3 4 5 6
17
OUTSIDE BOILER
INSIDE BOILER
Pump (supplied in boiler)
7 8 9 10
NOTE: Optional
Worcester Programmer
is available (see Section
10.6).
Operating Switch
Boiler socket
11 12 13 14 15