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6 Electrical installation
Installation manual
17
23EA
Daikin Altherma 3 R F
4P629088-1C – 2021.11
6.1
About electrical compliance
Only for the backup heater of the indoor unit
"6.3.2 To connect the backup heater power supply"
6.2
Guidelines when connecting the
electrical wiring
Tightening torques
Indoor unit:
Item
Tightening torque (N•m)
X1M
2.45 ±10%
X2M
0.88 ±10%
X5M
0.88 ±10%
X6M
2.45 ±10%
X10M
0.88 ±10%
M4 (earth)
1.47 ±10%
6.3
Connections to the indoor unit
Item
Description
Power supply (main)
See
"6.3.1 To connect the main power
18].
Power supply (backup
heater)
See
"6.3.2 To connect the backup heater
19].
Shut-off valve
See
"6.3.3 To connect the shut-off
20].
Electricity meters
See
"6.3.4 To connect the electricity
20].
Domestic hot water
pump
See
"6.3.5 To connect the domestic hot
21].
Alarm output
See
Space cooling/heating
operation control
See
"6.3.7 To connect the space cooling/
22].
Changeover to
external heat source
control
See
"6.3.8 To connect the changeover to
22].
Power consumption
digital inputs
See
23].
Safety thermostat
See
thermostat (normally closed
contact)"
23].
Smart Grid
See
24].
WLAN cartridge
See
cartridge (delivered as accessory)"
26].
Room thermostat
(wired or wireless)
See below table.
Wires: 0.75 mm²
Maximum running current: 100 mA
For the main zone:
▪ [2.9]
Control
▪ [2.A]
Thermostat type
For the additional zone:
▪ [3.A]
Thermostat type
▪ [3.9] (read-only)
Control
Item
Description
Heat pump convector
There are different controllers and
setups possible for the heat pump
convectors.
Depending on the setup, you also
need to implement a relay (field
supply, see addendum book for
optional equipment).
For more information, see:
▪ Installation manual of the heat
pump convectors
▪ Installation manual of the heat
pump convector options
▪ Addendum
book
for
optional
equipment
Wires: 0.75 mm²
Maximum running current: 100 mA
For the main zone:
▪ [2.9]
Control
▪ [2.A]
Thermostat type
For the additional zone:
▪ [3.A]
Thermostat type
▪ [3.9] (read-only)
Control
Remote outdoor
sensor
See:
▪ Installation manual of the remote
outdoor sensor
▪ Addendum
book
for
optional
equipment
Wires: 2×0.75 mm²
[9.B.1]=1 (
External sensor
=
Outdoor
)
[9.B.2]
Ext. amb. sensor offset
[9.B.3]
Averaging time
Remote indoor sensor
See:
▪ Installation manual of the remote
indoor sensor
▪ Addendum
book
for
optional
equipment
Wires: 2×0.75 mm²
[9.B.1]=2 (
External sensor
=
Room
)
[1.7]
Room sensor offset
Human Comfort
Interface
See:
▪ Installation and operation manual of
the Human Comfort Interface
▪ Addendum
book
for
optional
equipment
Wires: 2×(0.75~1.25 mm²)
Maximum length: 500 m
[2.9]
Control
[1.6]
Room sensor offset