Daikin Altherma 3 H HT F Installer's Reference Manual page 122

9 | Electrical installation
Installer reference guide
122
Backup heater Backup
type
capacity
*6V
(a)
6V3
(b)
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).
(c)
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
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
equal to Z .
max
(d)
6T1
Connect the power supply of the backup heater as follows:
a
X6M
F1B
b
Q1DI
a Factory-mounted cable connected to the contactor of the backup heater, inside the
switch box (K5M)
b Field wiring (see table below)
Model (power supply)
*6V (6V3: 1N~ 230 V)
Power supply
heater
2 kW 1N~ 230 V
4 kW 1N~ 230 V
6 kW 1N~ 230 V
2 kW 3~ 230 V
4 kW 3~ 230 V
6 kW 3~ 230 V
is less than or equal to Z
sys max
Connections to backup heater power supply
K5M
SWB
F1B
Q1DI
1N~, 50 Hz
230 V AC
Maximum
running current
(a)
9 A
(a) (b)(c)
17 A
(a) (b)(c)
26 A
(d)
5 A
(d)
10 A
(d)
15 A
at the interface point between the user's
2 4 6 14
1 3 5 13
X6M
1 3 5 7
I I I I
2 4 6 8
L N
EPRA14~18D + ETVH16SU18+23E
Daikin Altherma 3 H HT F
4P644738-1A – 2022.03
Z
max
—
0.22 Ω
0.22 Ω
—
—
—
less than or
sys