Daikin Altherma 3 R MT F Series, Installer'S Reference Manual

Page: 119 / 308

9 | Electrical installation
Installer reference guide
119
ERRA08~12E + EL23E
Daikin Altherma 3 R MT F
4P708478-1 – 2023.05
9.3 Connections to the indoor unit
Item Description
Power supply (main) See "9.3.1 To connect the main power
supply" [
4
122].
Power supply (backup
heater) See "9.3.2 To connect the backup heater power
supply" [
4
124].
Shut-off valve See "9.3.3 To connect the shut-off valve" [ 4 127].
Electricity meters See "9.3.4 To connect the electricity meters" [
4
128].
Domestic hot water pump See "9.3.5 To connect the domestic hot water
pump" [ 4 129].
Alarm output See "9.3.6 To connect the alarm output" [
4
130].
Space cooling/heating
operation control See "9.3.7 To connect the space cooling/heating ON/
OFF output" [
4
131].
Power consumption digital
inputs See "9.3.8 To connect the power consumption
digital inputs" [ 4 132].
Safety thermostat See "9.3.9 To connect the safety thermostat
(normally closed contact)" [
4
133].
Smart Grid See "9.3.10 To connect a Smart Grid" [
4
135].
WLAN cartridge See "9.3.11 To connect the WLAN cartridge
(delivered as accessory)" [
4
139].
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