Daikin Altherma 3 R F Installer's Reference Manual page 195

Electrical connection diagram
For more details, please check the unit wiring.
Power supply
Only for normal power supply installation
1
unit power supply: 230 V + earth
1 Only for preferential kWh rate power supply installation
unit preferential kWh rate power supply:
230 V + earth
Normal kWh rate power supply for indoor unit: 230 V
2
Preferential kWh rate power supply contact
Field supply
2
Safety thermostat Q4L
backup heater power supply (3 kW): 230 V + earth
(F1B)
Field supply
Power limitation
demand input 1
Power limitation
demand input 2
Power limitation
demand input 3
Power limitation
demand input 4
ERLA03DAV3 + EHFH03S18DJ3V
Daikin Altherma 3 R F
4P596806-1 – 2019.10
Standard part
Outdoor unit
3 core
X1M: L-N-earth
3 core
2 core
X1M: 1-2-3
2 core
2x0.75
3 core
Indoor unit
X1M: 1-2-3
X2M: 5-6
X5M: 9-10
3 core
X6M: L-N + earth
Only for *KRP1AHTA
2 core
A8P: X801M: 1-5
signal
2 core
A8P: X801M: 2-5
signal
2 core
A8P: X801M: 3-5
signal
2 core
A8P: X801M: 4-5
signal
A4P: Y1-YC
2 core
X2M: 7-9
Alarm output 230 V
A4P: X1-X2
2 core
Changeover to
ext. heat source output signal
A4P: Y2-YC
2 core
X2M: 7-9
Cooling/heating 230 V
On/OFF output
2 core
X2M: 1-2
230 V
2 core
NO valve: X2M: 21-28
NC valve: X2M: 21-29
230 V
2 core
X5M: 5-6
signal
2 core
X5M: 3-4
signal
Only for KRCS01-1 or EKRSCA1
2 core
X5M: 7-8
signal
External room thermostat / Heat pump convector
(main and/or additional zone)
3 3 core for C/H operation
2 core for H only operation
main: X2M: 30-34-35
add: X2M: 30-34a-35a
signal
3
5 core for C/H operation
4 core for H only operation
main: X2M: 30-31-34-35
add: X2M: 30-31-34a-35a
signal
3
4 core
main: X2M: 30-35
add: X2M: 30-35a
signal
main & add: X2M: 3-4
2 core
2x0.75
X5M: 11-12
communication
2 core
2x0.75
communication
2 core
2x0.75
communication
15
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Notes:
- In case of signal cable: keep minimum distance to power cables >5 cm
Field supply
Only for *KRP1HB*
alarm indication
Ext. heat source (e.g. boiler)
Cooling/heating
On/OFF output
Circulation pump for DHW
2-way valve
M2S for cooling mode
Electricity meter pulse input 1
Electricity meter pulse input 2
external thermistor (indoor or outdoor)
Only for *KRTW
(wired room thermostat)
A2P: X1M: C-com-H
Only for *KRTR
(wireless room thermostat)
(3m included)
A15P: X1M: H-C-com
A2P: X1M: 1-3
X2M: L-N
Only for FWXV/T/M*ATV3
(heat pump convector)
A3P: X11M: 3-4-5-6
Only for EKRUDAL1
(remote user interface)
A14P: P1-P2 user interface
A13P: P1-P2 LAN adapter
Only for EKRUDAL1
(remote user interface)
A10P: P1-P2 user interface
Technical data
Optional part
2 core Only for *KRTETS
R2T
External sensor
signal
(floor or ambient)
4D125237
Installer reference guide
195