To Connect The Backup Heater Power Supply - Daikin ETVH16S18DA6V(G) Installation Manual

5 Electrical installation
1 2 3
a
A
B a
A
B
X1M
1 2 3
X11YA
X1A
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.
Installation manual
12
1N~, 50 Hz,
230 V AC, 6.3 A
S1S
L N
6 5
9 10
b c
b c
5 6
X2M
X11YB
9 10
X11Y
X5M
system can have EITHER
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
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)
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
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)
Wires
2+GND
3+GND
4+GND
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
ETVH/X16S18+23DA6V+9W(G)
Daikin Altherma 3 H HT F
4P586454-1C – 2020.12