Daikin Altherma 3 H MT W User Manual

9 | Electrical installation
Installer reference guide
113
EPRA08~12EAV3+W1 + ETVH12SU18+23EA6V
Daikin Altherma 3 H MT F
4P644482-1 – 2021.03
9.3 Connections to the indoor unit
Item Description
Power supply (main) See "9.3.1To connect the main power
supply"[4116].
Power supply (backup
heater)
See "9.3.2To connect the backup heater power
supply"[4118].
Shut-off valve See "9.3.3To connect the shut-off valve"[4121].
Electricity meters See "9.3.4To connect the electricity meters"[4122].
Domestic hot water pump See "9.3.5To connect the domestic hot water
pump"[4123].
Alarm output See "9.3.6To connect the alarm output"[4124].
Space cooling/heating
operation control
See "9.3.7To connect the space cooling/heating ON/
OFF output"[4125].
Changeover to external
heat source control
See "9.3.8To connect the changeover to external
heat source"[4126].
Power consumption digital
inputs
See "9.3.9To connect the power consumption
digital inputs"[4127].
Safety thermostat See "9.3.10To connect the safety thermostat
(normally closed contact)"[4128].
Smart Grid See "9.3.11To connect a Smart Grid"[4129].
WLAN cartridge See "9.3.12To connect the WLAN cartridge
(delivered as accessory)"[4133].
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

Daikin Altherma 3 H MT W Specifications

General

Energy efficiency class (Heating)	A+++
Energy efficiency class (Cooling)	A++
Refrigerant	R-32
Type	Air to Water
Heating capacity	4 - 16 kW
Operating range (heating)	-25°C to 35°C
Weight (Outdoor Unit)	85 kg