Fujitsu AOYA18LALL Installation And Operating Manual page 28

Heat pump, Split, single service
Outside unit
L N
Electricity supply
230 V
Interconnection between the outside unit
and the hydraulic module
•
Interconnection between the outside unit and
the hydraulic module
Comply with the correspondence between the
markings on the hydraulic module's terminals and
those on the outside 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
(terminals 9, 10 and 11) 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.
•
Domectic hot water tank
If the installation is fitted with a DHW tank with
electrical back-up heating:
Please refer to the instructions supplied with the
DWH kit.
Please refer to the instructions supplied with the
DWH tank.
28
1 2 3 4 5 6 7 8 9 10 11 121314151617 18
L N
HP and
electric back-ups
Figure 37 - Connection to terminal block and power relays
Hydraulic module
Rp ECS
19
L N L N
L N
DHW
HP and
boiler connection
Second heating circuit
Please refer to the instructions supplied with the
second circuit kit.
•
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 Comfort
temperature will be produced during the off-peak
hours when electricity is cheaper.
- Connect the "Power Provider" contact to input EX5
or EX4.
- Set the parameter (1620) to "Off-peak hours".
•
230V on input EX5 = "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 EX4
(E6), the back-ups for the heat pump and the DHW
stop in the event of over-consumption by the
dwelling.
230 V on input EX4 (E6) = power limitation in
progress. (Operating line 2920)
Installation and operating manual "1350-EN"
Rp 1 Rp 2
Resistance
of the back-up unit 2
Resistance of the back-up unit 1