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Air to Water Heat Pump split system
5.5
Electrical connections
on the hydraulic unit side
Access to the connection terminals:
- Remove the front panel (2 screws)
- Open the power control box.
- Make the connections in accordance with the diagram
figure 38
Do not place the sensor lines and the sector supply
lines in parallel in order to avoid interferences due to
voltage points in the sector supply.
Ensure that all the electrical cables are housed in the
spaces provided for this purpose.
• Interconnection between the outdoor unit and the
hydraulic unit
Comply with the correspondence between the markings
on the hydraulic unit's terminals and those on the outdoor
unit when connecting the interconnection cables.
A connection error could cause the destruction of one or
other of the units.
• Electrical back-ups (option)
If the heat pump is not installed with a boiler connection:
- Connect the electrical supply for the back-ups to the
electrical panel.
• Boiler connection (option)
" If the boiler connection option is used, the
electric boost option must not be connected.
- Please refer to the instructions supplied with the boiler
connection kit.
- Please refer to the instructions supplied with the boiler.
• Second heating circuit
- Please refer to the instructions supplied with the
second circuit kit or/and Regulation extension kit.
• Telephone modem (Not supplied)
- Please refer to the instructions for the extension
controller kit.
- 34 -
(figure 17, page
18).
• DHW tank with electrical back-up heating (option)
If the installation is fitted with a DHW tank with electrical
back-up heating:
- Please refer to the instructions supplied with the DHW kit.
- Please refer to the instructions supplied with the DHW tank.
• Contract with the power provider
The heat pump's operation can be controlled to
suit special contracts (e.g. off-peak, day/night).
In particular, domestic hot water (DHW) at Nominal
temperature will be produced during the off-peak hours
when electricity is cheaper.
- Connect the "Power Provider" contact to input EX2.
- Set the parameter (1620) to "Off-peak hours".
• 230V on input EX2 = "Peak hours" information activated.
• Power shedding or EJP (peak day removal)
Power limitation is intended to reduce electrical
consumption when this is too high compared to the
contract with the power provider.
- Connect the power limiting device to input EX1, the
back-ups for the heat pump and the DHW stop in the
event of over-consumption by the dwelling.
• 230 V on input EX1 = power limitation in progress.
• External faults the heat pump
- Any component of carryforward of information (Heated
floor thermal safety fuse, thermostat, pressure switch,
etc.) may signal an external problem and stop the heat
pump.
- Connect the external component to input EX3.
• 230 V on input EX3 = stoppage of heat pump
(the system displays Error 369).
Installation and operating manual "1775 - EN"
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