Worcester GREENSTAR UTILITY 18/25 Instruction Manual page 29

8 716 106 256 C 03.10 30/3/10
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR DANESMOOR UTILITY 18/25
8 716 106 256C (03/2010)
14:24 Page 29
ELECTRICS
DANGER - 230V:
ISOLATE THE MAINS ELECTRICITY
PRE-WIRED REMOTE 2 OR 3 PORT VALVE
CONTROL SET USING REMOTE
PROGRAMMER:
Key to components:
K - REMOTE JUNCTION BOX (10-way) to
connect the following:
Mains wiring 230V 50Hz.
Hot water tank thermostat.
Room thermostat.
System water valves.
Circulating pump.
External programmer.
E - TERMINAL CONNECTOR BLOCK.
Remote (10 way) junction box (O)
requirements:
The junction box (K) must be a terminal block
type, current rated to at least 5 amps.
A 5 amp fuse must be fitted to the mains
supply.
The junction box (K) must be fitted externally
to the boiler.
A frost thermostat can also be connected to the
remote junction box if required.
ELECTRICS
29