7 Installation
Installer reference guide
39
ERGA04~08DAV3(A) + 08S18+23DA
Daikin Altherma – Low temperature split
4P495249-1 – 2017.12
X1M
X2M
X5M
A5P
X11YB
X1A
1 2 3
1 2 3
a
X11Y
X11YA
1 2 3
Legend: see illustration below.
In case of preferential kWh rate power supply
Connect X11Y to X11YB.
X1M
X2M
X5M
A5P
X11Y
X11YB
X1A
1 2 3
1
N L
N L
2 3
S1S
a
b
c
X11YA
5
1 2 3
6
9 10
a
Interconnection cable (=main power supply)
b
Normal kWh rate power supply
c
Preferential power supply contact
2
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 for the additional zone. It is only possible for the
system to have EITHER preferential kWh rate power
supply OR a safety thermostat for the additional zone.
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
*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 (K5M for *6V and *9W
models)
b
Field wiring (see table below)
