Daikin Altherma 3 R ECH2O - To Connect the Electrical Wiring to the Indoor Unit

6 Electrical installation
Installation manual
23
EBSH/X(B)11+16P30+50DF
Daikin Altherma 3 R ECH₂O
4P663483-1A – 2021.11
Item Description
WLAN cartridge See "6.3.14To connect the WLAN
cartridge"[434].
Solar input See "6.3.15To connect the solar
input"[434].
DHW output See "6.3.16To connect the DHW
output"[434].
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
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] 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
Item Description
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
WLAN module See:
▪ Installation manual of the WLAN
module
▪ Addendum book for optional
equipment
Use the cable delivered with the
WLAN module.
[D] Wireless gateway
for room thermostat (wired or wireless):
In case of… See…
Wireless room thermostat ▪ Installation manual of the wireless
room thermostat
▪ Addendum book for optional
equipment
Wired room thermostat
without multi-zoning base
unit
▪ Installation manual of the wired room
thermostat
▪ Addendum book for optional
equipment
Wired room thermostat
with multi-zoning base unit
▪ Installation manual of the wired room
thermostat (digital or analogue) +
multi-zoning base unit
▪ Addendum book for optional
equipment
▪ In this case:
▪ You need to connect the wired
room thermostat (digital or
analogue) to the multi-zoning base
unit
▪ You need to connect the multi-
zoning base unit to the outdoor unit
▪ For cooling/heating operation, you
also need to implement a relay
(field supply, see addendum book
for optional equipment)
6.3.1 To connect the electrical wiring to the
indoor unit
Remark: All cables which will be connected to the switch box of the
ECH
2
O must be fixed by strain relief.
To have easier access to the switch box itself and the routing of
cables the switch box can be lowered (see "4.2.1To open the indoor
unit"[415]).
If the switch box is lowered in service position while the electrical
installation is done, additional cable length has to be taken into
account adequately. The cable routing in normal position is longer
than in service position.