About Electrical Compliance; Guidelines When Connecting The Electrical Wiring; Connections To The Indoor Unit - Daikin Altherma 3 R MT W Installation Manual

6 Electrical installation
WARNING
▪ All wiring MUST be performed by an authorised
electrician and MUST comply with the applicable
national wiring regulation.
▪ Make electrical connections to the fixed wiring.
▪ All components procured on-site and all electrical
construction MUST
legislation.
WARNING
ALWAYS use multicore cable for power supply cables.
WARNING
If the supply cord is damaged, it MUST be replaced by the
manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.
CAUTION
Do NOT push or place redundant cable length into the unit.
INFORMATION
When installing field supply or option cables, foresee
sufficient cable length. This will make it possible to open
the switch box and gain access to other components
during service.
6.1

About electrical compliance

Only for the backup heater of the indoor unit
See "6.3.2 To connect the backup heater power
6.2 Guidelines when connecting the
electrical wiring
Tightening torques
Indoor unit:
Item
X1M
X2M
X5M
X6M
X7M, X8M
X10M
M4 (earth)
6.3

Connections to the indoor unit

Item
Power supply (main) See "6.3.1 To connect the main power
supply" [ 4 17].
Power supply (backup See "6.3.2 To connect the backup heater
supply" [ 4 18].
heater) power
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 See "6.3.5 To connect the domestic hot
pump" [ 4 20].
pump water
Alarm output See "6.3.6 To connect the alarm
output" [ 4 21].
Space cooling/heating See "6.3.7 To connect the space cooling/
operation control heating ON/OFF
Installation manual
16
comply with the applicable
supply" [ 4 18].
Tightening torque (N•m)
2.45 ±10%
0.88 ±10%
0.88 ±10%
2.45 ±10%
2.45 ±10%
0.88 ±10%
1.47 ±10%
Description
output" [ 4 21].
Item
Changeover to See "6.3.8 To connect the changeover to
external heat source external heat
control
Power consumption See "6.3.9 To connect the power
digital inputs consumption digital
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 23].
WLAN cartridge See "6.3.12 To connect the WLAN
cartridge (delivered as
Room thermostat See below table.
(wired or wireless)
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 to implement a relay (field
supply, see addendum book for
optional equipment).
For more information, see:
▪ Installation manual of the heat
▪ Installation manual of the heat
▪ Addendum
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 See:
sensor
▪ Installation manual of the remote
▪ Addendum
Wires: 2×0.75 mm²
[9.B.1]=1 (External sensor =
Outdoor)
[9.B.2] Ext. amb. sensor offset
[9.B.3] Averaging time
Description
source" [ 4 22].
inputs" [ 4 22].
accessory)" [ 4 25].
pump convectors
pump convector options
book for optional
equipment
outdoor sensor
book for optional
equipment
ELBH/X12E
Daikin Altherma 3 R MT W
4P708482-1 – 2023.03