To Connect The Backup Heater Power Supply - Daikin Altherma 3 H HT W Installationsanleitung

5 Electrical installation
B C
X2M
X1M
X1M
A1P
c b a
a Interconnection cable (=main power supply)
b Normal kWh rate power supply
c Preferential power supply contact
3 Fix the cables with cable ties to the cable tie mountings.
INFORMATION
In case of preferential kWh rate power supply, connect
X11Y to X11YB. The necessity of separate normal kWh
rate power supply to indoor unit (b) X2M/5+6 depends on
the type of preferential kWh rate power supply.
Separate connection to the indoor unit is required:
▪ if preferential kWh rate power supply is interrupted
when active, OR
▪ if no power consumption of the indoor unit is allowed at
the preferential kWh rate power supply when active.
INFORMATION
The preferential kWh rate power supply contact is
connected to the same terminals (X5M/9+10) as the safety
thermostat. Thus, the
preferential kWh rate power supply OR a safety
thermostat.
5.3.2 To connect the backup heater power
supply
Backup heater Power supply
type
*6V 1N~ 230 V (6V)
3~ 230 V (6T1)
*9W 3N~ 400 V
[9.3] Backup heater
CAUTION
If the indoor unit has a tank with a built‑in electrical booster
heater, use a dedicated power circuit for the backup heater
and booster heater. NEVER use a power circuit shared by
another appliance. This power circuit must be protected
with the required safety devices according to the applicable
legislation.
CAUTION
To guarantee the unit is completely earthed, always
connect the backup heater power supply and the earth
cable.
Installation manual
12
X11YA X11YB X11Y
5 6
1 2 3
X2M
X1A
A1P
system can have EITHER
Wires
2+GND
3+GND
4+GND
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 Backup
heater type heater supply
capacity
*6V 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
*9W 3 kW 3N~ 400 V
6 kW 3N~ 400 V
9 kW 3N~ 400 V
(a)
6V
(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
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
(d)
6T1
Connect the backup heater power supply as follows:
a
a Factory-mounted cable connected to the contactor of the
backup heater, inside the switch box (K5M)
b Field wiring (see table below)
Power Maximum Z
max
running
current
(a)
9 A —
(a) (b)(c)
17 A 0.22 Ω
(a) (b)(c)
26 A 0.22 Ω
(d)
5 A —
(d)
10 A —
(d)
15 A —
4 A —
9 A —
13 A —
is less than or equal to Z at the
sys max
.
max
b
X6M
F1B
Q1DI
ETBH/X16DF6V+9W
Daikin Altherma 3 H HT W
4P586453-1C – 2020.10