6 Electrical installation
Installation manual
12
EA23DA6V(7)+9W
Daikin Altherma 3 H F
4P556073-1A – 2021.09
Routing
Possible cables (depending on unit type
and installed options)
a
Low voltage
▪ Preferential power supply contact
▪ User interface (option)
▪ Power consumption digital inputs (field
supply)
▪ Outdoor ambient temperature sensor
(option)
▪ Indoor
ambient
temperature
sensor
(option)
▪ Electrical meters (field supply)
▪ Safety thermostat (field supply)
b
High voltage power
supply
▪ Interconnection cable
▪ Normal kWh rate power supply
▪ Preferential kWh rate power supply
c
High voltage control
signal
▪ Heat pump convector (option)
▪ Room thermostat (option)
▪ Shut-off valve (field supply)
▪ Domestic hot water pump (field supply)
▪ Alarm output
▪ Changeover to external heat source
control
▪ Space heating operation control
d
High voltage power
supply (factory-
mounted cable)
▪ Power supply for backup heater
CAUTION
Do NOT push or place redundant cable length in the unit.
4
Seal the low voltage wiring intake using the sealing tape
(delivered as accessory).
Without low voltage cables
With low voltage cables
6.3.3
To connect the main power supply
1
Connect the main power supply.
In case of normal kWh rate power supply
X1M
X2M
X5M
A5P
X11YB
X1A
1 2 3
1 2 3
a
X11Y
X11YA
1 2 3
a
Interconnection cable (=main power supply)
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.
