To Connect The Main Power Supply; To Connect The Backup Heater Power Supply - Daikin EHVZ08S23DA6V Installation Manual

Without low voltage cables
4.5.3

To connect the main power supply

1 Connect the main power supply.
In case of normal kWh rate power supply
1 2 3
1 2 3
a
1 2 3
X11YB X2M
X11YA
X1M
X11Y
X1A
Legend: see illustration below.
In case of preferential kWh rate power supply
Connect X11Y to X11YB.
1 2 3 N L
1 2 3 N L
a b c
1 2 3 5 6
X11YB X2M
X11YA X1M
X11Y
X1A
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.
EHVZ04+08S18+23DA + EHVZ04+08S18+23DJ
Daikin Altherma 3 R F
4P584429-1 – 2019.06
With low voltage cables
X5M
A5P
S1S
9 10
X5M
A5P
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.
4.5.4 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 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) 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
less than or equal to Z
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
Z .
max
(c) (6V)
(d) (6T1)
Connect the backup heater power supply as follows:
4 Installation
Power Maximum Z
max
running
current
(c)
9 A —
(c) (a)(b)
17 A 0.22 Ω
(c) (a)(b)
26 A 0.22 Ω
(d)
5 A —
(d)
10 A —
(d)
15 A —
4 A —
9 A —
13 A —
sys
at the interface point between the
max
less than or equal to
sys
Installation manual
is
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