17
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Technical data
Installer reference guide
238
EWSAH/X06D
Daikin Altherma 3 WS
4P675764-1 – 2022.04
17.2 Wiring diagram: Indoor unit
See the internal wiring diagram supplied with the unit (on the inside of the front panel). The abbreviations used
are listed below.
Notes to go through before starting the unit
English
Translation
Notes to go through before starting the
unit
Notes to go through before starting the
unit
X1M
Main terminal
X2M
Field wiring terminal for AC
X5M
Field wiring terminal for DC
Earth wiring
15
Wire number 15
Field supply
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/12.2
Connection ** continues on page 12
column 2
1
Several wiring possibilities
Option
Mounted in switch box
Wiring depending on model
PCB
Backup heater power supply
Backup heater power supply
1N~, 230 V, 3/6 kW
1N~, 230 V, 3/6 kW
3N~, 400 V, 6/9 kW
3N~, 400 V, 6/9 kW
User installed options
User installed options
Remote user interface
Remote user interface (Human
Comfort Interface)
Ext. indoor thermistor
External indoor thermistor
Digital I/O PCB
Digital I/O PCB
Demand PCB
Demand PCB
Brine low pressure switch
Brine low pressure switch
Main LWT
Main leaving water temperature
On/OFF thermostat (wired)
On/OFF thermostat (wired)
On/OFF thermostat (wireless)
On/OFF thermostat (wireless)
Ext. thermistor
External thermistor
Heat pump convector
Heat pump convector
Add LWT
Additional leaving water temperature
On/OFF thermostat (wired)
On/OFF thermostat (wired)
On/OFF thermostat (wireless)
On/OFF thermostat (wireless)