47
■
The assignment of the power-OFF (for compressor
and/or instantaneous heating water heater) is made
via the type of connection and by setting parameters
in the heat pump control unit.
In Germany, the power supply can be cut for a maxi-
mum of 3 x 2 hours per day (24 h).
■
The
heat pump control unit/PCB
must be supplied
without
power-OFF. Tariffs subject to possible shut-
down must not be used here.
■
When using power generated on site (use of power
generated by the PV system to meet own require-
ments):
During the power-OFF period, it is
not
possible to
operate the compressor utilising power generated on
site.
■
Protect the power cable to the heat pump control unit
with an MCB/fuse of max. 16 A.
■
For accessories and external components that will
not be connected to the heat pump control unit, pro-
vide the power supply via the same MCB/fuse, or at
least on the same phase, as the heat pump control
unit.
Connection to the same MCB/fuse provides addi-
tional safety when the power is switched off.
Observe the power consumption of the connected
consumers.
■
If the mains connection is made with a flexible power
cable, it must be ensured that the live conductors are
pulled taut before the earth conductor in the event of
strain relief failure. The length of the earth conductor
wire will depend on the design.
Heat pump control unit power supply 230 V~
X40
A
N
?
L1
N
?
L1
F1 6.3 AH (slow)
1/N/PE
230 V/50 Hz
Fig. 40
Note
This connection must
not
be blocked and must be
made using a flexible power cable.
■
Max. fuse rating 16 A
■
Standard tariff (no optional economy tariff with
power-OFF facility)
■
Recommended flexible power cable: 3 x 1.5 mm
2
(5 x 1.5 mm
2
with power-OFF)
Outdoor unit power supply
■
Economy tariff and power-OFF can be used.
■
No parameters need to be set when using economy
tariff with power-OFF. The compressor is shut down
during the power-OFF period.
■
During power-OFF, the diagnostic functions for the
external unit are not supported.
Note
Free terminals for internal use.
Installation sequence
Power supply
(cont.)
5831412
Installation
