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Technical data
Installer reference guide
206
E EHFH03S18D
Daikin Altherma 3 R F
4P596806-1C – 2022.09
Electrical connection diagram
For more details, please check the unit wiring.
2×0.75
230 V
1
1
X2M: 5-6
X5M: 9-10
A8P: X801M: 1-5
A8P: X801M: 2-5
A8P: X801M: 3-5
A8P: X801M: 4-5
A4P: Y1-YC
X2M: 7-9
X5M: 11-12
X2M: 1-2
X5M: 7-8
X5M: 5-6
X5M: 3-4
A4P: Y2-YC
X2M: 7-9
3
3
3
2×0.75
2×0.75
2×0.75
A15P: X1M: H-C-com
X2M: L-N
230 V
230 V
230 V
230 V
A2P: X1M: C-com-H
4D125237A
(F1B)
2
2
A4P: X1-X2
A2P: X1M: 1-3
4
A2P: X1M: 1-2
4
- In case of signal cable: keep minimum distance to power cables >5 cm
Notes:
Only for KRCS01-1 or EKRSCA1
2-way valve
signal
2 core
signal
2 core
signal
2 core
signal
2 core
Power limitation demand input 4
Power limitation demand input 3
Power limitation demand input 2
Power limitation demand input 1
FIELD SUPPLY
Only for *KRP1AHTA
Only for *KRP1HB*
FIELD SUPPLY
INDOOR UNIT
Cooling/heating ON/OFF output
External thermistor (indoor or outdoor)
Circulation pump for domestic hot water
M2S for cooling mode
Alarm indication
signal
2 core
2 core
2 core
2 core
2 core
R2T External sensor (floor or
ambient)
Only for EKRTETS
signal
2 core
(3m included)
A14P: P1-P2 Optional user interface
Only for EKRUDAL1
Only for BRP069A61 or BRP069A62
Only for EKRTR* (wireless room thermostat)
Only for EKRTW (wired room thermostat)
5 core for C/H operation
4 core for H only operation
3 core for C/H operation
2 core for H only operation
communication
2 core
A13P: P1-P2 LAN adapter
A3P: Heat pump convector
communication
2 core
A10P: P1-P2 Main user interface
Only for EKRUDAL1 (delivered with the unit as accessory)
communication
2 core
OPTIONAL PART
External room thermostat / Heat pump convector
(main and/or additional zone)
main: X2M: 30-31-34-35
add: X2M: 30-31-34a-35a
main: X2M: 30-34-35
add: X2M: 30-34a-35a
Cooling/heating
ON/OFF output
NO valve: X2M: 21-28
NC valve: X2M: 21-29
Alarm output
4 core
3 core
3 core
2 core
signal
2 core
X1M: 1-2-3-earth
X1M: 1-2-3-earth
Normal kWh rate power supply for indoor unit:
Preferential kWh rate power supply contact
Unit preferential kWh rate power supply:
230 V + earth
Only for preferential kWh rate power supply installation
Unit power supply:
230 V + earth
Only for normal power supply installation
OUTDOOR UNIT
STANDARD PART
POWER SUPPLY
signal
signal
Only for FWXV/T/M*ATV3
main: X2M: 30-35
add: X2M: 30-35a
main & add: X2M: 3-4
signal
4 core
X6M: L-N + earth
3 core
Backup heater power supply (3 kW):
230 V + earth
Electricity meter pulse input 1
Electricity meter pulse input 2
signal
2 core
signal
2 core
FIELD SUPPLY
Safety thermostat Q4L
X1M: L-N-earth
Ext. heat source (e.g. boiler)
signal
2 core
Changeover to
ext. heat source output
Only for EKRTR1
Only for EKRTRB
