10 Technical data
Installation manual
44
EWSAH/X06UDA9W
Daikin Altherma 3 WS
4P675760-1 – 2021.10
10.2
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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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)
Ext. thermistor
External thermistor
Heat pump convector
Heat pump convector
Position in switch box
English
Translation
Position in switch box
Position in switch box
Legend
A1P
Main PCB (hydro)
A2P
* User interface PCB
A3P
* On/OFF thermostat
A3P
* Heat pump convector
A4P
* Digital I/O PCB
A4P
* Receiver PCB (Wireless On/OFF
thermostat, PC=power circuit)
A6P
Backup heater control PCB
A7P
Inverter PCB
A8P
* Demand PCB
A15P
LAN adapter
A16P
ACS digital I/O PCB
C2
Capacitor
CN* (A4P)
* Connector
CT*
* Current sensor
DS1 (A8P)
* DIP switch
F1B
# Overcurrent fuse
F1U~F2U(A4P)
* Fuse (5 A, 250 V)
F1U (A7P)
Fuse (T, 6.3 A, 250 V)
F1U (A16P)
Fuse (T, 1.5 A, 250 V)
F2B
# Overcurrent fuse compressor
FU1 (A1P)
Fuse (T, 6.3 A, 250 V)
K*R (A1P, A4P,
A7P, A16P)
Relay on PCB
K9M
Thermal protector backup heater relay
L1R
Reactor
M2P
# Domestic hot water pump
M2S
# Shut-off valve
M3P
# Drain pump
PC (A4P)
* Power circuit
PHC1 (A4P)
* Optocoupler input circuit
Q*DI
# Earth leakage circuit breaker
Q1L
Thermal protector backup heater
Q4L
# Safety thermostat
R1T (A3P)
* Thermistor (ambient temperature of the On/
OFF thermostat)
R1T (A7P)
Thermistor (outdoor ambient temperature)
R2T (A3P)
* Thermistor (floor temperature or indoor
ambient temperature)
(in case of wireless On/OFF thermostat)
R6T (A1P)
* Thermistor (indoor ambient temperature)
(in case of external indoor ambient
thermistor)
R1H (A3P)
* Humidity sensor
S1L
# Low level switch
S1PL
# Brine low pressure switch
S1S
# Preferential kWh rate power supply contact
S2S
# Electricity meter pulse input 1
S3S
# Electricity meter pulse input 2
S6S~S9S
# Digital power limitation inputs
SS1 (A4P)
* Selector switch
TR*
Power supply transformer
X*M
Terminal strip
X*Y
Connector
Z*C
Noise filter (ferrite core)
Z*F (A16P)
Noise filter
*
Optional
#
Field supply
Translation of text on wiring diagram
English
Translation
(1) Main power connection
(1) Main power connection
For preferential kWh rate power
supply
For preferential kWh rate power
supply