Daikin EBSX-D - 6 Electrical Installation; About Electrical Compliance; Guidelines When Connecting the Electrical Wiring; Connections to the Indoor Unit

6 Electrical installation
Installation manual
21
EBSH/X(B)11+16P50D
Daikin Altherma 3 R ECH₂O
4P759878-1 – 2024.01
6 Electrical installation
DANGER: RISK OF ELECTROCUTION
WARNING
ALWAYS use multicore cable for power supply cables.
CAUTION
Do NOT push or place redundant cable length into the unit.
NOTICE
The distance between the high voltage and low voltage
cables should be at least 50mm.
6.1 About electrical compliance
Only for the backup heater of the indoor unit
See "6.3.3To connect the backup heater power supply"[424].
6.2 Guidelines when connecting the
electrical wiring
Tightening torques
Indoor unit:
Item Tightening torque (N•m)
M4 (X1M) 1.2
M4 (X12M, X15M) 0.88 ±10%
Indoor unit – BUH option:
Item Tightening torque (N•m)
M4 (X6M) *3V, *6V 2.45 ±10%
M4 (X6M) *9W 1.2
6.3 Connections to the indoor unit
Item Description
Power supply (main) See "6.3.2To connect the main power
supply"[423].
Power supply (backup
heater)
See "6.3.3To connect the backup heater
power supply"[424].
Backup heater See "6.3.4To connect the backup heater to
the main unit"[425].
Shut-off valve See "6.3.5To connect the shut-off
valve"[426].
Electricity meters See "6.3.6To connect the electricity
meters"[426].
Domestic hot water
pump
See "6.3.7To connect the domestic hot
water pump"[427].
Alarm output See "6.3.8To connect the alarm
output"[427].
Space cooling/heating
operation control
See "6.3.9To connect the space cooling/
heating ON/OFF output"[428].
Changeover to
external heat source
control
See "6.3.10To connect the changeover to
external heat source"[428].
Power consumption
digital inputs
See "6.3.11To connect the power
consumption digital inputs"[429].
Safety thermostat See "6.3.12To connect the safety
thermostat (normally closed
contact)"[429].
Smart Grid See "6.3.13To connect a Smart
Grid"[430].
Item Description
WLAN cartridge See "6.3.14To connect the WLAN
cartridge"[432].
Solar input See "6.3.15To connect the solar
input"[433].
DHW output See "6.3.16To connect the DHW
output"[433].
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] Ext thermostat type
For the additional zone:
▪ [3.A] Ext thermostat type
▪ [3.9] (read-only) Control
Heat pump convector There are different controllers and
setups possible for the heat pump
convectors.
Depending on the setup, you also
need option EKRELAY1.
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] Ext thermostat type
For the additional zone:
▪ [3.A] Ext 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