Daikin EPRA08EAV3, Installer'S Reference Manual

Page: 100 / 292

9 | Electrical installation
Installer reference guide
100
EPRA08~W1 + ETVH/9W
Daikin Altherma 3 H MT F
4P634886-1 – 2021.03
9.1.6 Overview of electrical connections except external actuators
Normal power supply Preferential kWh rate power supply
Power supply is NOT
interrupted
Power supply is
interrupted
1
580
1 50
0 0
2
a
3 1
4
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 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)
9.2 Connections to the outdoor unit
Item Description
Power supply cable See "9.2.1 To connect the electrical wiring to the
outdoor unit" [
4
101].
Interconnection cable
Drain tube heater cable
Connection for power
saving function (only for V3
models)