10 Technical data
Installation manual
38
ETBH/X16E
Daikin Altherma 3 H HT W
4P644727-1B – 2022.03
Electrical connection diagram
For more details, please check the unit wiring.
4 core
2×0.75
230 V
1
1
(F2B)
X2M: 5-6
X5M: 9-10
A8P: X801M: 1-5
SPST:
X2M: 12-13-14a
A1P: X9A
A1P: X13A
X2M: 11a
X2M: 10
A8P: X801M: 2-5
A8P: X801M: 3-5
A8P: X801M: 4-5
A11P: X3: 2-3-4
A4P: Y1-YC
X2M: 7-9
A4P: X1-X2
X5M: 11-12
X2M: 1-2
X5M: 7-8
X5M: 5-6
X5M: 3-4
A4P: Y2-YC
X2M: 7-9
4
4
7
7
4
2×0.75
A15P: X1M: H-C-com
X2M: L-N
A30P: ST6
A2P: X1M: 1-3
A15P: X1M: H-C-com
X2M: L-N
A2P: X1M: 1-2
230 V
230 V
230 V
230 V
3G×2.5
X6M
A4P: Y3-YC
X2M: 8-9
230 V
230 V
230 V
A2P: X1M: C-com-H
4D133217B
A3P
A11P: X5: 4-5
A11P: X9: 1-2-3
(F1B)
5
6
5
5
6
2×0.75
3
3
X5M: 14
X5M: 13-14
X5M: 13
2
2
2
X10M: 1-2
2×0.75
X10M: 3-4
2×0.75
230 V
X1M: 1-2-3
X1M: 1-2-3
- In case of signal cable: keep minimum distance to power cables >5 cm
- Available heaters depending on model: see combination table
Notes:
Only for KRCS01-1 or EKRSCA1
2-way valve
3-way valve
Bizone mixing kit
Only for EKSRPS4A option
signal
2 core
signal
2 core
signal
2 core
signal
2 core
Power limitation demand input 4
communication
3 core
Power limitation demand input 3
Power limitation demand input 2
Power limitation demand input 1
3 core
M3S (when *KHW is installed)
Selection domestic hot water – Floor heating
signal
2 core
R5T Thermistor water temperature
K3M Contactor booster heater
3 core
Booster heater Q2L
Domestic hot water tank
FIELD SUPPLY
OPTIONAL PART
OPTIONAL PART (*KHW*)
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
Ext. heat source (e.g. boiler)
Alarm indication
signal
2 core
signal
2 core
2 core
2 core
2 core
2 core
R2T External sensor (floor or
ambient)
Only for *KRTETS
signal
2 core
(3m included)
A14P: P1-P2 user interface
Only for Human Comfort Interface
Only for *KRTR1 (wireless room thermostat)
Only for *KRTRB (wireless room thermostat)
Only for *KRTW (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
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
BSK: A3P: 1-2 solar interlock
2 core
Solar input
NO valve: X2M: 21-28
NC valve: X2M: 21-29
Changeover to
ext. heat source output
Alarm output
X8M: L-N + earth
or L1-L2 + earth
or L1/L2/L3-N + earth
X7M: L-N + earth
3 core
Booster heater power supply (3 kW):
400 V or 230 V + earth
3 core
5 or 3 core
5 or 3 core
2 core
signal
2 core
Normal kWh rate power supply for indoor unit:
Preferential kWh rate power supply contact
Unit preferential kWh rate power supply:
400 V or 230 V + earth
Only for preferential kWh rate power supply installation
Unit power supply:
400 V or 230 V + earth
Only for normal power supply installation
OUTDOOR UNIT
STANDARD PART
POWER SUPPLY
signal
signal
Only for heat pump convector
main: X2M: 30-35
add: X2M: 30-35a
main & add: X2M: 3-4
signal
4 core
WLAN module
communication
5 core
A20P: J2
X6M: L1-L2-L3 + earth
or L-N + earth
or L1-L2-L3-N + earth
5 or 4 or 3 core
Backup heater power supply (6/9 kW):
400 V or 230 V + earth
Electricity meter pulse input 1
Smart Grid contact K2A
Electricity meter pulse input 2
Smart Grid pulse meter
signal
2 core
signal
2 core
Only for high voltage Smart Grid
Smart Grid contact S11S
Only for low voltage Smart Grid
FIELD SUPPLY
FIELD SUPPLY
2 core
Safety thermostat Q4L
Only for high voltage Smart Grid
Only for low voltage Smart Grid
Smart Grid contact K1A
2 core
Smart Grid relay K1A
2 core
Smart Grid relay K2A
OPTIONAL PART
Smart Grid contact S10S
High voltage Smart Grid control supply: 230 V
X1M: L1-L2-L3-N-earth
or L-N-earth
3 core
X2M: 1-2 + earth
Drain tube heater
FIELD SUPPLY
