17
Fig. 15. Wiring Diagram (Standard).
Mains Wiring
230V 50Hz (5 amp fuse)
Tank Stat
Room Stat
System Water Valves
Pump
External Timer
Fig. 16. Pre-wired Remote ‘Y’ Plan or ‘S’ Plan.
If the system is fully pre-wired at a junction box remotely from the boiler
it can be easily connected into the Worcester Utility Oil Boiler.
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
Live
Neutral
Earth
Control Box
Connector Block
