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Electrical installation
Installer reference guide
106
EPRA08~W1 + ETSH/X(B)12P30+50EF
Daikin Altherma 3 H MT ECH₂O
4P663478-1 – 2021.07
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
"9.2.1 To connect the electrical wiring to the
107].
Interconnection cable
Drain tube heater cable
Connection for power
saving function (only for V3
models)
Air thermistor cable
"9.2.2 To reposition the air thermistor on the
113].
Summary of Contents for Altherma 3 H MT ECH2O
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