To Connect The Backup Heater Power Supply - Daikin Altherma 3 R MT W Installation Manual

6 Electrical installation
1 Front panel
2 Switch box cover
3 Switch box
2 Connect the main power supply.
In case of normal kWh rate power supply
Interconnection Wires: (3+GND)×1.5 mm²
cable (= main
power supply)
—
A
A
B
a
C
1 2 3
B C X11YA
X2M
X1M
X1M
A1P
a
a Interconnection cable (=main power supply)
In case of preferential kWh rate power supply
Interconnection Wires: (3+GND)×1.5 mm²
cable (= main
power supply)
Normal kWh rate Wires: 1N
power supply
Maximum running current: 6.3 A
Preferential kWh Wires: 2×(0.75~1.25 mm²)
rate power supply
Maximum length: 50 m.
contact
Preferential kWh rate power supply
contact: 16 V DC detection (voltage
supplied by PCB). The voltage-free
contact shall ensure the minimum
applicable load of 15 V DC, 10 mA.
[9.8] Benefit kWh power supply
Connect X11Y to X11YB.
Installation manual
18
3
2
1
X11Y X11YB
1 2 3
X2M
X1A
A1P
A
A
B
C
1 2 3
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.
6.3.2 To connect the backup heater power
supply
Backup heater Power supply
type
*6V 1N~ 230 V (6V3)
3~ 230 V (6T1)
*9W 3N~ 400 V
[9.3] Backup heater
6 5
10 9
L N S1S
1N~, 50 Hz,
230 V AC, 6.3 A
X11YA X11YB X11Y
5 6
1 2 3
X2M
X1A
A1P
Wires
2+GND
3+GND
4+GND
ELBH/X12E
Daikin Altherma 3 R MT W
4P708482-1 – 2023.03