Electrical; Mounting Optional Plug-In Controls - Only With Greenstar Wiring Centre - Worcester Greenstar Ri Compact ErP Installation, Commissioning And Servicing Instructions

INSTALLATION
5.6

Electrical

CAUTION: Mains electrical supply
▶ Isolate the mains electrical supply before starting
any work and observe all relevant safety precautions.
NOTICE: The boiler is fitted with a mains power cable.
▶ Should this not be required it can be removed and
replaced with a cable suitable to the installation.
The electrical connector from the PCB must be
re-used. A replacement grommet is provided in the
hardware/literature pack but must be cut to suit the
cable diameter when fitting.
NOTICE: System pump
▶ The system pump must be connected to the
appliance for the pump over-run function.
Electrical - standard 230V wiring centre installations
▶ The mains electrical supply to the boiler and system wiring centre
must be common, and through either a fused double pole isolator or
a fused three pin plug and unswitched socket.
▶ The isolator/socket, where practicable, should be situated next to
the boiler.
▶ The isolator must have a minimum of 3mm contact separation in both
poles.
▶ Any system connected to the boiler must not have a separate
electrical supply.
▶ External fuse rating 3A.
▶ Route the 230 V mains power cable, from the control box, to the
mains isolator next to the boiler.
Electrical - Greenstar wiring (optional accessory)
The additional following information applies:
▶ The mains electrical supply to the boiler and system wiring centre
should where practicable be common, and through either a fused
double pole isolator or a fused three pin plug and unswitched socket.
▶ If separate isolators are used refer to the Greenstar Wiring Centre
Installation Commissioning & Servicing Instructions for further
information
28
Access to electrical connections
1. Refer to fig. 36 and remove the screws in the installer access cover.
2. Lift the "Installer access cover".
3. Remove the cover.
1.
3.
5A Fuse
4.
Fig. 36 Removing the installer access cover
4. Mains in connections
5. Pump connections
6. Mains out connections
230V and 24V Connectors
230V
230V 230V
IN OUT
L N L N L N
1 2 3
Fig. 37 230V and 24V connections
1 230V mains input
2 Pump connection
3 230V output to external controls
4 Outdoor compensation sensor (not used)
5 External cut off switch (not used)
6 EMS BUS connection
5.6.1 Mounting optional plug-in controls -
only with Greenstar wiring centre (optional accessory
CAUTION: Mains electrical supply
▶ Isolate the mains electrical supply before starting
any work and observe all relevant safety precautions.
NOTICE: Link required
▶ L and LR must be linked when using the Greenstar
wiring centre
Refer the to Programmer/Timer manual for set up and operation of the
unit.
Greenstar Ri Compact
2.
6.
5.
24V
LR
4 5 6
6720646610-06.1Wo
ErP 6720813282 (2015/07)
EMS