Overview Of Electrical Connections Except External Actuators - Daikin Altherma EHFH03S18D 3V Series Installer's Reference Manual

9 | Electrical installation

9.1.5 Overview of electrical connections except external actuators

Installer reference guide
96
▪ demand that the equipment ONLY consumes a limited amount of electricity
during certain periods of time.
The indoor unit is designed to receive an input signal by which the unit switches
into forced OFF mode. At that moment, the outdoor unit compressor will NOT
operate.
The wiring to the unit is different depending on whether the power supply is
interrupted or NOT.
Normal power supply
a
0
0 58 0
1 5 0
3 1
2
a Normal power supply
b Preferential kWh rate power supply
1 Power supply for outdoor unit
2 Power supply and interconnection cable to indoor unit
3 Power supply for backup heater
4 Preferential kWh rate power supply (voltage free contact)
5 Normal kWh rate power supply (to power the indoor unit PCB in
the event of power supply interruption of the preferential kWh
rate power supply)
Preferential kWh rate power supply
Power supply is NOT
interrupted
b
0
0 58 0
1 5 0
3 1
4
2
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.
Power supply is
interrupted
a
b
0 0
0 58 0 0 58 0
1 5 0 1 5 0
5 3 4 1
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.
ERLA03D + EHFH03S18D
Daikin Altherma 3 R F
4P596806-1C – 2022.09