Daikin ERLA03DAV3 Installer's Reference Manual page 180

15 | Technical data
Electrical connection diagram
For more details, please check the unit wiring.
Power supply
1
Only for normal power supply installation
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
Safety thermostat Q3L
Power limitation
demand input 1
Power limitation
demand input 2
Power limitation
demand input 3
Power limitation
demand input 4
Installer reference guide
180
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
2 core
X5M: 1-2
signal
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
230 V
Alarm output
A4P: X1-X2
2 core
Changeover to
ext. heat source output signal
A4P: Y2-YC
2 core
X2M: 7-9
230 V
Heating
On/OFF output
2 core
X2M: 1-2
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
2 core for H only operation
main: X2M: 30-35
add: X2M: 30-35a
signal
3
4 core for H only operation
main: X2M: 30-31-35
add: X2M: 30-31-35a
signal
3
2 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
2 core
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)
Heating
On/OFF output
Circulation pump for DHW
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)
A10 P: P1-P2 user interface
ERLA03DAV3 + EHFZ03S18DJ3V
Optional part
2 core
Only for *KRTETS
R2T
External sensor
signal
(floor or ambient)
4D125238
Daikin Altherma 3 R F
4P596821-1A – 2020.05