Daikin EPRA16DAW1 Installer's Reference Manual page 250

15 | Technical data
Electrical connection diagram
For more details, please check the unit wiring.
POWER SUPPLY
Only for normal power supply installation
1
Unit power supply:
400 V or 230 V + earth
Only for preferential kWh rate power supply installation
1
Unit preferential kWh rate power supply:
400 V or 230 V + earth
Normal kWh rate power supply for indoor unit:
230 V
2 Preferential kWh rate power supply contact
FIELD SUPPLY
Safety thermostat Q4L
2
4
Backup heater power supply (6 kW):
230 V + earth
(F1B)
4
Backup heater power supply (6/9 kW):
400 V + earth
(F1B)
OPTIONAL PART (*KHW*)
Booster heater power supply (3 kW):
400 V or 230 V + earth
(F2B)
Domestic hot water tank
Booster heater Q2L
X6M
R5T Thermistor water temperature
OPTIONAL PART
3-way valve
M3S (when *KHW is installed)
Selection domestic hot water – Floor heating
FIELD SUPPLY
Power limitation demand input 1
Power limitation demand input 2
Power limitation demand input 3
Power limitation demand input 4
OPTIONAL PART
Only for WLAN adapter
A20P: J2
communication
Installer reference guide
250
STANDARD PART
5 or 3 core
X1M: L1-L2-L3-N-earth
or L-N-earth
5 or 3 core
X1M: 1-2-3
2 core
3 core
2 core
2×0.75
X1M: 1-2-3
X2M: 5-6
X5M: 9-10
4 or 3 core
X6M: L1-L2-L3 + earth
or L-N + earth
5 core
X6M: L1-L2-L3-N + earth
X8M: L-N + earth
3 core
or L1-L2 + earth
or L1-L2-L3-N + earth
X2M: 10
X2M: 11a
3 core
3G×2.5
X7M: L-N + earth
230 V
2 core
A1P: X9A
signal
3 core
SPST:
X2M: 12-13-14a
230 V
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
A11P: X5: 4-5
5 core
A11P: X9: 1-2-3
OUTDOOR UNIT
3 core
X2M: 1-2 + earth
230 V
INDOOR UNIT
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
A4P: Y3-YC
2 core
X2M: 7-9
Solar input
230 V
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
2 core
X5M: 7-8
signal
External room thermostat / Heat pump convector
(main and/or additional zone)
3 core for C/H operation
3
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
main: X2M: 30-35
add: X2M: 30-35a
4 core
signal
main & add: X2M: 3-4
2 core
2×0.75
X5M: 11-12
communication
2 core
2×0.75
communication
Notes:
- In case of signal cable: keep minimum distance to power cables >5 cm
- Available heaters depending on model: see combination table
Drain tube heater
Alarm indication
Ext. heat source (e.g. boiler)
Cooling/heating On/OFF output
Only for *KSR3PA option
BSK: A3P: 1-2 solar interlock
Circulation pump for domestic hot water
2-way valve
M2S for cooling mode
Electricity meter pulse input 1
Electricity meter pulse input 2
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
X2M: L-N
Only for heat pump convector
A3P: X11M: 3-4-5-6
Only for Human Comfort Interface
A14P: P1-P2 user interface
A13P: P1-P2 LAN adapter
EPRA14~18DAV3+W1 + ETBH/X16DA6V+9W
FIELD SUPPLY
FIELD SUPPLY
Only for *KRP1HB*
OPTIONAL PART
OPTIONAL PART
Only for *KRTETS
2 core
(3m included)
R2T External sensor (floor or
ambient)
signal
4D124706A
Daikin Altherma 3 H HT W
4P587501-1A – 2020.01