7 | Installation
Installer reference guide
96
ERGA04~08DAV3(A) + EHVH/X04+08S18+23DA/DJ3V+6V+9W7
Daikin Altherma 3 R F
4P618947-1 – 2020.03
7.9.7 To connect the electrical wiring to the indoor unit
1 To open the indoor unit, see "7.2.3To open the indoor unit"[467].
2 The wiring enters the unit from the top:
a, b, c Field wiring (see table below)
d Factory-mounted cable for power supply of backup heater
3 Routing of the wiring inside the unit should be as follows. Fix the cable to the
cable rail using cable ties:
WARNING
Make sure that the electrical wiring does NOT touch the refrigerant gas pipe, which
can be very hot.
a Refrigerant gas pipe
Routing Possible cables (depending on unit type and installed
options)
a
Low voltage
▪ Preferential power supply contact
▪ User interface used as room thermostat (option)
▪ Power consumption digital inputs (field supply)
▪ Outdoor ambient temperature sensor (option)
▪ Indoor ambient temperature sensor (option)
▪ Electrical meters (field supply)
▪ Safety thermostat (field supply)