To Connect The Backup Heater Power Supply - Daikin Altherma 3 R ECH2O EHSHB-E Series Installation Manual

6 Electrical installation
A
2x
a
230 V AC , 6.3 A
1N~, 50 Hz,
L
1 2 3
N
A B
B
a Interconnection cable
b Power supply indoor unit
In case of preferential kWh rate power supply
Interconnection Wires: (3+GND)×1.5 mm²
cable
Power supply Wires: 1N+GND
indoor unit
Maximum running current: 6.3 A
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
Installation manual
20
b
F2B
Q DI 2
5
1 2
6
3 4
2x
a b
X1M
1 2 3 4 5 6
A
3x
a
230 V AC , 6.3 A
Q DI 2
1N~, 50 Hz,
L
1 2 3
N
A B
c
3 4
B
X 5M 1
a Interconnection cable
b Power supply indoor unit
c Preferential power supply contact
3 Fix the cable with cable ties to the cable tie mountings. General
information, see "6.3.1 To connect the electrical wiring to the
unit" [ 4 18].
indoor
6.3.3 To connect the backup heater power
supply
Backup heater Power supply
type
EKECBU*3V 1N~ 230 V
EKECBU*6V 1N~ 230 V
EKECBU*9W 3N~ 400 V
[9.3] Backup heater
WARNING
The backup heater MUST have a dedicated power supply
and MUST be protected by the safety devices required by
the applicable legislation.
CAUTION
To guarantee the unit is completely earthed, ALWAYS
connect the backup heater power supply and the earth
cable.
b
F2B
4 3
5
1 2
6
3 4
S1S
3x
a b
X1M
1 2 3 4 5 6
Wires
(2+GND)×2.5 mm²
(minimum)
(2+GND)×4 mm²
(minimum); ONLY
flexible cords
(4+GND)×2.5 mm²
(minimum)
EHSH/X(B)04+08P30+50EF
Daikin Altherma 3 R ECH₂O
4P678717-1 – 2021.11
c