14 Technical data
Installer reference guide
84
ERLQ004~008CA + 08S18CB
Daikin Altherma – Low temperature split
4P401676-1 – 2015.02
Electrical connection diagram
For more details, please check the unit wiring.
4D096036-1
A4P: Y1
X2M: 29
A4P:Y2
X2M:29
X1M: 1-2-3
X2M: 30-31
X5M: 3-4
X5M: 11-12
A8P: X801M: 1-5
A8P: X801M: 2-5
A8P: X801M: 3-5
A8P: X801M: 4-5
A4P: X1-X2
X1Y: 1-2
X1M: 1-2-3
230 V
230 V
230 V
A3P: X1M: C-com-H
A4P: X1M: H-C-com
X2M: L-N
A3P: X1M: 1-3
X11M : 5-6
X2M: 34-35
X5M: 5-6
X5M: 7-8
X5M: 9-10
A4P: Y2
X2M: 29
2
2
2
1
1
2x0.75
X5M: 1-2
2x0.75
Power limitation
demand input 1
Safety thermostat
Field supply
Field supply
Power supply
Standard part
Outdoor unit
In case of signal cable: keep minimum distance
to power cables >5 cm
External room thermostat / Heat pump convector
(main and/or additional zone)
Optional part
Note
Only for *KBPHT*
& depending on model
Bottom plate heater
X1M: L1-L2-L3-N-earth
or L-N-earthv
Field supply
2 core
F1B: L-N + earth
Alarm output
Changeover to
ext. heat source output
Cooling/heating
On/OFF output
Cooling/heating
On/OFF output
signal
2 core
signal
2 core
signal
2 core
signal
2 core
2 core
2 core
signal
2 core
2 core
2x0.75
3 core
230 V
2 core
230 V
2 core
230 V
2 core
230 V
2 core
signal
2 core
signal
2 core
signal
2 core
signal
Power limitation
demand input 2
Power limitation
demand input 3
Power limitation
demand input 4
Only for *KRP1HB*
Cooling/heating
On/OFF output
Ext. heat source (eg boiler)
alarm indication
NC valve: X2M: 5-7
NO valve: X2M: 6-7
Electricity meter pulse input 2
Electricity meter pulse input 1
M2S (*KHBX units) for cooling mode
external thermistor (indoor or outdoor)
Only for *KRTW
(wired room thermostat)
2 core for H only operation
3 core for C/H operation
4 core for H only operation
5 core for C/H operation
Standard part
Optional part
Only for
(heat pump convector)
Only for *KRTR
(wireless room thermostat)
2 core
(3m included)
signal
Only for
*KRTETS
Only for *KRUCBL*
Circulation pump for DHW
main: X2M: 1-2-4
add: X2M: 1a-2a-4
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
normal kWh rate power supply for indoor unit: 230 V
Preferential kWh rate power supply contact
backup heater power supply (3 kW): 230 V + earth
5 or 3 core
5 or 3 core
2 core
2 core
3 core
R2T
External sensor
(floor or ambient)
Indoor unit
2 core
2x0.75
communication
Only for
*KRP1AHTA
2-way valve
Only for KRCS01-1 or EKRSCA1
A2P: P1-P2 user interface
communication
A2P: P1-P2 user interface
main: X2M: 1-2-3-4
add: X2M: 1a-2a-3-4
main: X2M: 1-4
add: X2M: 1a-4
