Daikin Altherma EAVX-D9WG - To Connect the Electrical Wiring on the Indoor Unit

7 Installation
Installer reference guide
36
EPGA11~16DAV3 + EAVH/X16S18+23DA6V+9W
Daikin Altherma – Low temperature split
4P556070-1 – 2019.02
b
f
a
e
e
d
c
e
e
e
a Power supply cable
b Communication cable
c Cable for bottom plate heater (optional)
d Ferrite core
e Tie strap
f Compressor
NOTICE
To guarantee electromagnetic compatibility:
▪ Make sure both power supply and communication
cables run parallel to one another. Use tie straps to
hold the cables together.
▪ Make sure the cables are located as far away from the
compressor as possible.
▪ The communication cable MUST pass through the
ferrite core.
5 Make sure that the cable does NOT come in contact with sharp
edges or hot gas piping.
6 Install the switch box cover.
INFORMATION
When installing field supply or option cables, foresee
sufficient cable length. This will make it possible to remove/
reposition the switch box and gain access to other
components during service.
CAUTION
Do NOT push or place redundant cable length in the unit.
7.6.7 To connect the electrical wiring on the
indoor unit
1 To open the indoor unit, see "7.2.3To open the indoor unit"on
page27 and "7.2.4To open the switch box cover of the indoor
unit"on page28.
2 The wiring enters the unit from the top:
b+c ad
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:
a
4×
b+c
Routing Possible cables (depending on unit type
and installed options)
a
Low voltage
▪ Preferential power supply contact
▪ User interface (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)
b
High voltage power
supply
▪ Interconnection cable
▪ Normal kWh rate power supply
▪ Preferential kWh rate power supply
c
High voltage control
signal
▪ Heat pump convector (option)
▪ Room thermostat (option)
▪ Shut-off valve (field supply)
▪ Domestic hot water pump (field supply)
▪ Alarm output
▪ Changeover to external heat source
control
▪ Space cool/heat operation control
d
High voltage power
supply (factory-
mounted cable)
▪ Power supply for backup heater
CAUTION
Do NOT push or place redundant cable length in the unit.
4 Seal the low voltage wiring intake using the sealing tape
(delivered as accessory).
Without low voltage cables With low voltage cables