To Connect The Backup Heater Power Supply - Daikin Altherma ELSH12P30E Series Installation Manual

6 Electrical installation
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 22].
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.
Installation manual
24
The backup heater capacity is depending on the chosen BUH option
kit. Make sure that the power supply is in accordance with the
backup heater capacity, as listed in the table below.
Backup
heater type
*3V
*6V
*9W
Connect the backup heater power supply as follows:
Wires
(2+GND)×2.5 mm²
(minimum)
(2+GND)×4 mm²
(minimum); ONLY
flexible cords
(4+GND)×2.5 mm²
(minimum)
Backup Power
heater supply
capacity
1 kW 1N~ 230 V
2 kW 1N~ 230 V
3 kW 1N~ 230 V
2 kW 1N~ 230 V
4 kW 1N~ 230 V
6 kW 1N~ 230 V
3 kW 3N~ 400 V
6 kW 3N~ 400 V
9 kW 3N~ 400 V
(a)
Electrical equipment complying with EN/IEC 61000-3-12
(European/International Technical Standard setting the limits for
harmonic currents produced by equipment connected to public
low-voltage systems with input current >16 A and ≤75 A per
phase).
(b)
This equipment complies with EN/IEC 61000‑3‑11 (European/
International Technical Standard setting the limits for voltage
changes, voltage fluctuations and flicker in public low-voltage
supply systems for equipment with rated current ≤75 A) provided
that the system impedance Z is less than or equal to Z
sys
interface point between the user's supply and the public system. It
is the responsibility of the installer or user of the equipment to
ensure, by consultation with the distribution network operator if
necessary, that the equipment is connected only to a supply with
a system impedance Z less than or equal to Z
sys
Maximum Z
max
running
current
4.4 A —
8.7 A —
13.1 A —
8.7 A —
(a)(b)
17.4 A 0.22 Ω
(a)(b)
26.1 A 0.22 Ω
4 A —
9 A —
13 A —
at the
max
.
max
ELSH/X(B)12P30+50E
Daikin Altherma 3 R MT ECH₂O
4P708484-1 – 2023.03