Daikin Altherma EHFH-D3V - To Connect the Main Power Supply

6 Electrical installation
Installation manual
11
EHFH03S18D
Daikin Altherma 3 R F
4P596803-1D – 2022.08
In case of… See…
Wired room thermostat
without multi-zoning base
unit
▪ Installation manual of the wired room
thermostat
▪ Addendum book for optional
equipment
Wired room thermostat
with multi-zoning base unit
▪ Installation manual of the wired room
thermostat (digital or analogue) +
multi-zoning base unit
▪ Addendum book for optional
equipment
▪ In this case:
▪ You need to connect the wired
room thermostat (digital or
analogue) to the multi-zoning base
unit
▪ You need to connect the multi-
zoning base unit to the outdoor unit
▪ For cooling/heating operation, you
also need to implement a relay
(field supply, see addendum book
for optional equipment)
LAN adapter – System requirements
The requirements posed on the Daikin Altherma system depend on
the LAN adapter application/system layout (app control):
Item Requirement
LAN adapter software It is recommended to ALWAYS keep the
LAN adapter software up-to-date.
Unit control method On the user interface, make sure to set
[A.2.1.7]=2 (Unit control method = RT
control)
6.3.1 To connect the main power supply
1 Open the following (see "4.2.1To open the indoor unit"[45]):
1 Top panel
1
2
3
2 Upper front panel
3 Upper switch box cover
2 Connect the main power supply.
In case of normal kWh rate power supply
Interconnection
cable (=main
power supply)
Wires: (3+GND)×1.5mm²
—
A
1 2 3
a
B
A
B
1 2 3
X2M
X1A
X11YA
X11YB
X11Y
X1M
a
a Interconnection cable (=main power supply)
In case of preferential kWh rate power supply
Interconnection
cable (=main
power supply)
Wires: (3+GND)×1.5mm²
Normal kWh rate
power supply
Wires: 1N
Maximum running current: 6.3A
Preferential kWh
rate power supply
contact
Wires: 2×(0.75~1.25mm²)
Maximum length: 50m.
Preferential kWh rate power supply
contact: 16VDC detection (voltage
supplied by PCB). The voltage-free
contact shall ensure the minimum
applicable load of 15VDC, 10mA.
[A.2.2.E.3] Preferential kWh rate
Connect X11Y to X11YB.