9
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Electrical installation
Installer reference guide
107
EPRA14~W1 + ETSH/X(B)16P30+50EF
Daikin Altherma 3 H HT ECH₂O
4P679467-1 – 2022.02
Normal power supply
Preferential kWh rate power supply
Power supply is NOT
interrupted
Power supply is
interrupted
1
5
580
1 50
0
0
2
a
3
1
4
5
580
1 50
0
0
2
b
3
During preferential kWh
rate power supply
activation, power supply
is NOT interrupted. The
outdoor unit is turned off
by the control.
Remark:
The electricity
company must always
allow the power
consumption of the
indoor unit.
5 3
a
b
1
4
580
1 50
0
0
580
1 50
0
0
2
During preferential kWh
rate power supply
activation, power supply
is interrupted
immediately or after
some time by the
electricity company. In
this case, the indoor unit
must be powered by a
separate normal power
supply.
a
Normal power supply
b
Preferential kWh rate power supply
1
Power supply for outdoor unit
2
Interconnection cable to indoor unit
3
Power supply for backup heater (optional)
4
Preferential kWh rate power supply (voltage free contact)
5
Power supply for indoor unit
9.2 Connections to the outdoor unit
Item
Description
Power supply cable
See
"9.2.1 To connect the electrical wiring to the
Interconnection cable
Drain tube heater cable
Connection for power
saving function (only for V3
models)
Air thermistor cable
See
