Daikin Altherma 3 H HT EPRA14DAW1, Installer'S Reference Manual

Page: 91 / 260

8 | Electrical installation
Installer reference guide
91
EPRA14~W1 + ETVH/9W(G)
Daikin Altherma 3 H HT F
4P587502-1A – 2020.01
This equipment allows for connection to such preferential kWh rate power supply
delivery systems.
Consult with the electricity company acting as provider at the site where this
equipment is to be installed to know whether it is appropriate to connect the
equipment in one of the preferential kWh rate power supply delivery systems
available, if any.
When the equipment is connected to such preferential kWh rate power supply, the
electricity company is allowed to:
▪ interrupt power supply to the equipment for certain periods of time;
▪ 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.
8.1.5 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