Daikin Altherma 3 H HT EPRA18DAW1, Installer'S Reference Manual

Page: 82 / 252

8 | Electrical installation
Installer reference guide
82
EPRA14~W1 + ET9W
Daikin Altherma 3 H HT F
4P587503-1A – 2020.01
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)
8.2 Connections to the outdoor unit
Item Description
Power supply cable See "8.2.1 To connect the electrical wiring to the
outdoor unit" [
4
82].
Interconnection cable
Drain tube heater cable
Connection for power
saving function (only for V3
models)
Air thermistor cable See "8.2.2 To reposition the air thermistor on the
outdoor unit" [ 4 88].
8.2.1 To connect the electrical wiring to the outdoor unit
1 Open the switch box cover. See "6.2.2 To open the outdoor unit" [
4
48].
2 Strip insulation (20 mm) from the wires.
a b
a Strip wire end to this point
b An excessive strip length may cause electrical shock or leakage
3 Insert the cables at the back of the unit, and route them through the factory-
mounted cable sleeves into the switch box. For the power supply, use the
factory-mounted cable.
d
c2
b2
c1
b1
a1
a2
a1+a2 Power supply cable (factory-mounted cable)