Daikin Altherma 3 R F - About Electrical Compliance; Guidelines When Connecting the Electrical Wiring; Connections to the Indoor Unit

6 Electrical installation
Installation manual
17
EHVH04+08SU18+23EA
Daikin Altherma 3 R F
4P629088-1C – 2021.11
6.1 About electrical compliance
Only for the backup heater of the indoor unit
See "6.3.2To connect the backup heater power supply"[419].
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
supply"[418].
Power supply (backup
heater)
See "6.3.2To connect the backup heater
power supply"[419].
Shut-off valve See "6.3.3To connect the shut-off
valve"[420].
Electricity meters See "6.3.4To connect the electricity
meters"[420].
Domestic hot water
pump
See "6.3.5To connect the domestic hot
water pump"[421].
Alarm output See "6.3.6To connect the alarm
output"[421].
Space cooling/heating
operation control
See "6.3.7To connect the space cooling/
heating ON/OFF output"[422].
Changeover to
external heat source
control
See "6.3.8To connect the changeover to
external heat source"[422].
Power consumption
digital inputs
See "6.3.9To connect the power
consumption digital inputs"[423].
Safety thermostat See "6.3.10To connect the safety
thermostat (normally closed
contact)"[423].
Smart Grid See "6.3.11To connect a Smart
Grid"[424].
WLAN cartridge See "6.3.12To connect the WLAN
cartridge (delivered as accessory)"[4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