Fujitsu WGYA050DG6 Design & Technical Manual page 186

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.
Rear view
•
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.
•
Electric back-ups
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
- 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.
•
DHW tank with electrical back-up
heating
- Connect the electrical supply for the DHW tank to
the electrical panel.
•
Contract with the power provider
The heat pump's operation can be controlled to suit
special contracts (e.g. Low-tariff, 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 line 1620 to "Low-tariff".
-
230V on input EX2 = "Peak hours" information
-
activated.
•
Power limitation 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 EX, 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
(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).
In the case of a heated floor, connect the floor
-
heating safety device into the connector of the floor
heating pump(X12 or X110).
- (CS01 - 70) - - (CS01 - 70) -
Control system