To Connect The Electrical Wiring To The Outdoor Unit; To Connect The Main Power Supply - Daikin Altherma 3 M Installation Manual

6 Electrical installation
a1
a2
c
a Accessories in standalone domestic hot water tank
(EKHWS*D* and EKHWSU*D*)
a1: Contactor
a2: Terminal block
b Connection kit for third‑party tank with built‑in thermostat
(EKHY3PART2)
c Flow switch (EKFLSW1)
d Demand PCB (A8P: EKRP1AHTA)
e Digital I/O PCB (A4P: EKRP1HBAA)
f Smart grid relay kit (EKRELSG)
6.3.1 To connect the electrical wiring to the
outdoor unit
1 Open the service cover. See
unit" [ 4 10].
2 Insert the cables at the back of the unit, and route them through
the unit to the appropriate terminal blocks.
b
c
a
d
a High voltage options
b Low voltage options
c Power supply for backup heater (in case of unit with
integrated backup heater)
Wiring for backup heater kit (in case of external backup
heater kit)
d Unit power supply
3 Connect the wires to the appropriate terminals, and fix the
cables with cable ties.
6.3.2

To connect the main power supply

This topic describes 2 possible ways to connect the main power
supply:
▪ In case of normal kWh rate power supply
▪ In case of preferential kWh rate power supply
In case of normal kWh rate power supply
Normal kWh rate Wires: 1N+GND, OR 3N+GND
power supply
Maximum running current: Refer to name
plate on unit.
Installation manual
16
OR
b
d e f
"4.3.1 To open the outdoor
—
1 Open the service cover. See
unit" [ 4 10].
2 Connect as follows (1N~or 3N~ depending on model, see name
plate):
Q1DI
L N PE
1N~, 50 Hz,
220-240 V AC
1N~
OR
L N
3 Fix the cables with cable ties to the cable tie mountings.
In case of preferential kWh rate power supply
Preferential kWh Wires: 1N+GND, OR 3N+GND
rate power supply
Maximum running current: Refer to name
plate on unit.
Separate normal Wires: 1N
kWh rate power
Maximum running current: 6.3 A
supply
Preferential kWh Wires: 2×(0.75~1.25 mm²)
rate power supply
Maximum length: 50 m.
contact
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.
[9.8] Benefit kWh power supply
1 Open the service cover. See
unit" [ 4 10].
2 Connect the preferential kWh rate power supply (1N~or 3N~
depending on model, see name plate).
"4.3.1 To open the outdoor
1N~ OR 3N~
Q1DI
N L1 L2 L3 N PE
3N~, 50 Hz,
380-415 V AC
3N~
L1 L2 L3 N
X1M
"4.3.1 To open the outdoor
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
4P620239-1 – 2020.06