Bosch Worcester Danesmoor Utility Regular ErP+ 12/18 Installation, Commissioning And Servicing Instruction Manual page 36

Installation
Utility System - Remote 2 or 3 port valve control set using remote programmer
•
= EARTH
•
= LIVE
•
= NEUTRAL
•
= SWITCHED LIVE
OUTSIDE BOILER
INSIDE BOILER
Fig. 60
36
Key to components:
K - REMOTE JUNCTION BOX (10-way) to connect the following
(refer to manufacturers instructions):
> Mains wiring 230V 50Hz.
K
> Hot water tank thermostat.
> Room thermostat.
> System water valves.
> Circulating pump.
> External programmer.
E - TERMINAL CONNECTOR BLOCK.
M - PUMP LINK
Remote (10 way) junction box (K) requirements:
P
> 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.
*If the junction box has a pump overrun feature remove link (M) and
connect a wire between the junction box pump feed and terminal 1
on the connector block.
If the junction box does not have a pump overrun feature no separate
pump feed will need to be run to the boiler, leave link (M) in place.
E
1 2 3
*
M
L
N
Greenstar Danesmoor Utility ErP+ and Utility System ErP+ - 6 720 821 720 (2018/04)