9 | Electrical installation
Installer reference guide
110
ERGA04~08EAV3(A) + EHVH04+08SU18+23EA6V
Daikin Altherma 3 R F
4P629090-1 – 2020.08
9.3 Connections to the indoor unit
Item Description
Power supply (main) See "9.3.1To connect the main power
supply"[4114].
Power supply (backup
heater)
See "9.3.2To connect the backup heater power
supply"[4116].
Shut-off valve See "9.3.3To connect the shut-off valve"[4118].
Electricity meters See "9.3.4To connect the electricity meters"[4119].
Domestic hot water pump See "9.3.5To connect the domestic hot water
pump"[4119].
Alarm output See "9.3.6To connect the alarm output"[4120].
Space cooling/heating
operation control
See "9.3.7To connect the space cooling/heating ON/
OFF output"[4121].
Changeover to external
heat source control
See "9.3.8To connect the changeover to external
heat source"[4122].
Power consumption digital
inputs
See "9.3.9To connect the power consumption
digital inputs"[4123].
Safety thermostat See "9.3.10To connect the safety thermostat
(normally closed contact)"[4124].
Smart Grid See "9.3.11To connect a Smart Grid"[4125].
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