Daikin Altherma 3 HT - Connecting Electrical Wiring to Outdoor Unit

9 | Electrical installation
Installer reference guide
102
EPRA14~18D + ETVH/X16S18+23E
Daikin Altherma 3 H HT F
4P644737-1A – 2022.03
Item Description
Air thermistor cable See "9.2.2To reposition the air thermistor on the
outdoor unit"[4108].
9.2.1 To connect the electrical wiring to the outdoor unit
1 Open the switch box cover. See "7.2.2To open the outdoor unit"[466].
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.
d
c2
b2
c1
b1
a1
a2
a1+a2 Power supply cable (field supply)
b1+b2 Interconnection cable (field supply)
c1+c2 (optional) Drain tube heater cable (field supply)
d Cable sleeves (factory-mounted)
4 Inside the switch box, connect the wires to the appropriate terminals, and fix
the cables with cable ties. See:
▪ "In case of V3 models"[4102]
▪ "In case of W1 models"[4105]
In case of V3 models
1 Power supply cable:
▪ Route the cable through the frame.
▪ Connect the wires to the terminal block.
▪ Fix the cable with a cable tie.