Electrical Connections On The Hydraulic Unit Side; Contract With Energy Supplier; Boiler Connection; Faults External To The Heat Pump - Fujitsu Waterstage WOYG160LJL Installation Manual

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Electrical connections on the hydraulic unit side

Access to connection terminals:
- Remove the front panel (2 screws).
- Open the power control box.
- Make the connections according to the diagram
Do not place the sensor and power supply lines parallel
to each other to avoid interference due to voltage spikes
in the power supply.
Make sure that all electrical cables are housed in the
areas provided for this purpose.
▼ Interconnection between outdoor unit
and hydraulic unit
Match up the terminal block markers on the hydraulic
unit to those of the outdoor unit exactly when connecting
the interconnection cables.
An incorrect connection could result in the destruction
of one or other of the units.
▼ Electrical backups
If the heat pump is not installed with a boiler connection:
- Connect the power supply for the backup to the
electrical panel.
▼ Boiler connection (optional)
If the boiler connection option is used, the
electric backup 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 (optional)
- Refer to the instructions supplied with the double
hydraulic circuit kit.
- 38 -
▼ DHW tank with electrical backup heating
(optional)
If the installation is fitted with a DHW tank :
(fig. 34).
- Please refer to the instructions supplied with the DHW kit.
- Please refer to the instructions supplied with the DHW tank.
You must equipped the DHW electrical backup
heating with a manual reset thermostat.

▼ Contract with Energy Supplier

The heat pump can be set to operate within particular
types of energy contract, e.g. off-peak, day/night.
In particular, domestic hot water (DHW) at the comfort
temperature will be produced at off-peak times when
electricity is at its cheapest.
- Connect the "Power Provider" contact to input EX2.
- Set the DHW configuration to "Off-Peak".
• 230V on input EX2 = "Peak Hours" information
activated.
▼ Power limitation or EDR (Energy Demand
Reduction)
Power limitation is designed to reduce electricity
consumption when it is too high for the contract signed
with the energy supplier.
- Connect the power limiter device to input EX1.
Heat pump and DHW backups will be shut off in the
event of over-consumption by the dwelling.
• 230 V on input EX1 = power limitation in progress.

▼ Faults external to the heat pump

Any component which reports back information
(Underfloor heating safety switch, 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 = heat pump stopped
(system displays Error 369).
Waterstage / Installation / 2011 - EN