Daikin EPRA10EAV3 Installer's Reference Manual page 285

Electrical connection diagram
For more details, please check the unit wiring.
Power supply
outdoor unit power supply:
3 core
230 V + earth
indoor unit power supply:
3 core
230 V + earth
FIELD SUPPLY
1
Preferential kWh rate
power supply contact
1
Only for LV smartgrid
Smartgrid contact S10S
2 core
Optional part
2x0.75
1
Only for HV smartgrid
signal
Smartgrid contact K1A
2 core
2x0.75
Smartgrid relais K1A
2 core
2x0.75
Smartgrid relais K2A
3 core
HV smartgrid control supply: 230 V
FIELD SUPPLY
2 core
2
2x0.75
Safety thermostat Q4L
5 or 3
backup heater power supply (3/6/9 kW):
core
400 V or 230 V + earth
(F1B)
OPTIONAL PART
(WLAN adapter module)
5 core
A20P: J2
communication
(BZ mixing kit)
3 core
A30P: ST6
communication
FIELD SUPPLY
2 core
Power limitation
demand input 1
signal
2 core
Power limitation
demand input 2
signal
2 core
Power limitation
demand input 3
signal
2 core
Power limitation
demand input 4
signal
EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF
Daikin Altherma 3 H MT ECH₂O
4P663478-1B – 2022.07
STANDARD PART
OUTDOOR UNIT
X1M: L-N-earth
X1M: 1-2-3-earth
4 core
INDOOR UNIT
X1M: 1-2-3-earth
X1M: 4-5-6
X15M: 3-4
ext. heat source output
Cooling/heating
On/OFF output
X12M: 23-25
X12M: 24-25
X15M: 7
2
X15M: 8
NO valve: X12M: 14-18
NC valve: X12M: 13-18
X15M: 7-8
X6M: L-N + earth
or L1-L2-L3-N + earth
A11P: X5: 4-5
A11P: X9: 1-2-3
3
A11P: X3: 2-3-4
main: X12M: 15-16-22
add: X12M: 19-20-22
3
Only for *KRP1AHTA
main: X12M: 15-16-21-22
add: X12M: 19-20-21-22
A8P: X801M: 1-5
3
main: X12M: 15-22
A8P: X801M: 2-5
add: X12M: 19-22
main & add: X12M: 9-10
A8P: X801M: 3-5
A8P: X801M: 4-5
Notes:
- In case of signal cable: keep minimum distance to power cables > 5 cm
FIELD SUPPLY
2 core
X12M: 1-2
Alarm output
230 V
X12M: 3-4
2 core
Changeover to
signal
X12M: 5-6
2 core
230 V
2 core
X15M: 13-14
signal
2 core
X12M: 7-8
230 V
2 core
X12M: 11-12
230 V
2 core
230 V
2 core
X15M: 5-6
signal
2 core
X15M: 9-10
signal
2 core
X15M: 1-2
signal
EXTERNAL ROOM THERMOSTAT / HEAT PUMP CONVECTOR
(main and/or additional zone)
3 core for C/H operation
2 core for H only operation
signal
5 core for C/H operation
4 core for H only operation
signal
4 core
signal
X15M: 11-12
communication
2 core
2x0.75
communication
16 Technical data
|
Alarm indication
Ext. heat source (eg boiler)
Cooling/heating
On/OFF output
Solar input
Circulation pump for DHW
DHW output
2WAY VALVE
M4S for cooling mode
4
Electricity meter pulse input 1
Only for HV smartgrid 4
Smartgrid contact K2A
Only for LV smartgrid 4
Smartgrid contact S11S
5
Electricity meter pulse input 2
5
Smartgrid pulse meter
5
Gas meter pulse input
Only for KRCS01-1 or EKRSCA1
External thermistor (indoor or outdoor)
Only for *KRTW
(wired room thermostat)
A2P: X1M: C-com-H
Only for *KRTR
(wireless room thermostat)
A15P: X1M: H-C-com
A2P: X1M: 1-3
6
X2M: L-N
only for EKRTR1
Only for
A2P: X1M: 1-2
6
(heat pump convector)
only for EKRTRB
A3P
Only for remote
A14P: P1-P2 user interface
user interface
Only for LAN adapter
A13P: P1-P2 user interface
OPTIONAL PART
2 core
Only for *KRTETS
(3m included)
R2T
External sensor
signal
(floor or ambient)
4D132247 B
Installer reference guide
285