
16
L N E E N 1 2 3 4 5 6
Mains Wiring
230V 50Hz (5 amp fuse)
Tank Stat
Room Stat
System Water Valves
Pump
External Timer
Earth
Neutral
Permanent Live
Switched Live
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
Optional
Worcester
Programmer
HEAT SYSTEMS
HEATING
ADVANCE
OFF
TWICE
ONCE
ON
OFF
TWICE
ONCE
ON
SELECT
LOCK SET?
YES
SELECT
PM
TUE
HOT
WATER
ADVANCE
10 WAY JUNCTION BOX
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.
Remote Pre-wired
Junction Box
OUTSIDE BOILER
INSIDE BOILER
Green/Yellow
Blue
Brown
Black
7 8 9 10
Burner Socket