Connecting The Heat Pump To The Power Supply; Installation Of Sensors - Worcester GREENSTORE Instruction Manual

Connecting the heat pump to
the power supply
Ensure the electricity has been switched off before connecting the heat
pump to the mains. Check that cables and printed circuit boards are intact
and connected.
High and low current cables should be routed separately in order
to avoid interference on the sensors.
A wiring diagram is supplied with the heat pump.
A description of external connections is given in this section.
Examples of external connections include room and outdoor sensors and
mixing valves.
The mains connection as well as the material used to make this connection
must comply with current electrical regulations.
The heat pump electrical supply must be protected with an MCB or fuse
as specifi ed in the table on page 41. Wiring must be H07RNF type. Supply
must be L+N+E 230V single-phase. Also a residual current device (RCD)
with a rating of ΔI=300 mA should be installed in the supply to the heat
pump.

Installation of sensors

Install the Return sensor T1 (GT1) in direct contact with the return pipe,
approximately 1-2 m from the heat pump and, if possible, after a 90° bend.
Install the Outdoor sensor T2 (GT2) on the North side of the house at
least 50 cm from ground level.
Hot water sensor T3 (GT3) is factory fi tted in the integrated hot water
cylinder.
Install the Room sensor T5 (GT5) in a room in the center of the house.
The room sensor should not be infl uenced by other heat sources or direct
sun light.

Connecting the heat pump to the power supply

The electrical installation may only be
performed by a qualifi ed electrician.
The main power supply must be
disconnected before working on the
heat pump.
A combined overcurrent and residual
current device (RCBO) can be used in
place of the two separate devices.
Only the room where the room sensor
is located can infl uence regulation of
the temperature.
23
Warning
Note
Note