7 Installation
Installer reference guide
44
ERGA04~08DAV3(A) + EHVH/X04+08S18+23DA
Daikin Altherma – Low temperature split
4P495248-1 – 2017.12
7.9.9
To connect the backup heater power
supply
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.
The backup heater capacity can vary, depending on the indoor unit
model. Make sure that the power supply is in accordance with the
backup heater capacity, as listed in the table below.
Backup
heater type
Backup
heater
capacity
Power
supply
Maximum
running
current
Z
max
*3V
3 kW
1N~ 230 V
13 A
(b)
0.34 Ω
*6V
2 kW
1N~ 230 V
9 A
—
4 kW
1N~ 230 V
17 A
(a)(b)
0.22 Ω
6 kW
1N~ 230 V
26 A
(a)(b)
0.22 Ω
2 kW
3~ 230 V
5 A
—
4 kW
3~ 230 V
10 A
—
6 kW
3~ 230 V
15 A
—
*9W
3 kW
3N~ 400 V
4 A
—
6 kW
3N~ 400 V
9 A
—
9 kW
3N~ 400 V
13 A
—
(a)
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
sys
is
less than or equal to Z
max
at the 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
sys
less than or equal to
Z
max
.
Connect the backup heater power supply as follows:
X6M
F1B
Q1DI
a
b
a
Factory-mounted cable connected to the backup heater
contactor inside the switch box (K1M for *3V models; K5M
for *6V and *9W models)
b
Field wiring (see table below)
Model (power
supply)
Connections to backup heater power
supply
*3V (1N~ 230 V)
1N~, 50 Hz
230 V AC
SWB
Q1DI
1
2
3
4
F1B
I
I
L
N
X6M
2
1
K1M
4
3
*6V (1N~ 230 V)
1N~, 50 Hz
230 V AC
SWB
4
3
6
5
2
1
K5M
14
13
Q1DI
1
2
3
4
5
6
7
8
F1B
I
I
I
I
N
L
X6M
*6V (3~ 230 V)
SWB
3~, 50 Hz
230 V AC
4
3
6
5
2
1
K5M
14
13
1
2
3
4
5
6
7
8
F1B
I
I
I
I
Q1DI
L1 L2 L3
X6M
Final English - Tanslations in progress
