For more details, please check the unit wiring.
X1Y: 1-2
X1M: 1-2-3
A4P:Y2
X2M:29
2x0.75
X2M: 30-31
X5M: 3-4
1
1
F1B: L1-L2-L3
Q*L
X6M
X8M
5Gx2.5
230 V
X2M: 13-14
X9A (PCB A1P)
230 V
A4P: X4
X2M: 28
230 V
SPST:
X2M: 8-9-10
A4P: Y1
X2M: 28
A4P: Y3
X2M: 29
A4P: X1-X2
A3P: X1M: C-com-H
A4P: X1M: H-C-com
X2M: L-N
A3P: X1M: 1-3
R2T
230 V
X2M: 32-33
X11M: 3-4-5-6
X5M: 1-2
2x0.75
2x0.75
X2M: 34-35
X5M: 5-6
X5M: 7-8
X5M: 9-10
230 V
A8P: X801M: 1-5
230 V
A8P: X801M: 2-5
230 V
A8P: X801M: 3-5
230 V
A8P: X801M: 4-5
A4P: Y2
X2M: 29
Q*L
X5M
230 V
2way valve
F2B
X7M
3
3
3
4D090420 A
2
2
X1M: 1-2-3
230 V
230 V
230 V
230 V
230 V
2 core
3 core
5 or 3 core
normal kWh rate power supply for indoor unit: 230 V
unit preferential kWh rate power supply
400 V or 230 V + earth:
Only for preferential kWh rate power supply installation
Only for normal power supply installation
5 or 3 core
unit power supply: 400 V or 230 V + earth
Field supply
Indoor Unit
Outdoor unit
Standard part
Optional parts (*KHW*)
Power supply
Preferential kWh rate power supply contact
Field supply
Safety thermostat
booster heater power supply (3 kW): 230 V + earth
backup heater power supply (3/6/9 kW): 400 V or 230 V + earth
X1M: L1-L2-L3-N-earth
or L-N-earth
Only for *KBPHT*
& depending on model
Bottom plate heater
F2B: L-N + earth
or L-N + earth
On/OFF output
Cooling/heating
Changeover to
ext. heat source output
Solar input
Alarm output
2 core3 core
main: X2M: 1-4
add: X2M: 1a-4
main: X2M: 1-2-3-4
add: X2M: 1a-2a-3-4
main: X2M: 1-2-4
add: X2M: 1a-2a-4
NC valve: X2M: 5-7
NO valve: X2M: 6-7
2 core
2 core
2 core
2 core
2 core
2 core
signal
5 core
3 core
4 or 3
core
Domestic hot
water tank
clixon
R5T - thermistor
water temperature
Q2L - clixon
booster heater
Booster heater
clixon
Only for *KHWSU*V3
Only for *KRP1AHTA
Only for *KSOLHWAV1
X4M: 1-2-earth
Power limitation
demand input 4
Power limitation
demand input 3
Power limitation
demand input 2
Power limitation
demand input 1
solar pump
4 core for H only operation
5 core for C/H operation
2 core for H only operation
3 core for C/H operation
communication
2 core
4 core
Notes:
- In case of signal cable: keep minimum distance to power cables > 5 cm
- Available heaters depending on model: see combination table
3way valve
M3S (when *KHW is installed)
selection domestic hot water-floor heating
Only for *KRUCBL*
A2P: P1-P2 user interface
A2P: P1-P2 user interface
Standard part
Optional part
External room thermostat / Heat pump convector
(main and/or additional zone)
Optional part
Only for
(heat pump convector)
Only for *KRTR
(wireless room thermostat)
Only for *KRTW
(wired room thermostat)
External sensor
(floor or ambient)
Only for *KRTETS
2 core
(3m included)
signal
Electricity meter
pulse input 2
Electricity meter
pulse input 1
Circulation pump
for DHW
M2S (*KHBX units)
for cooling mode
Ext. heat source (eg boiler)
BSK: 1-2 solar interlock
alarm indication
Cooling/heating
On/OFF output
2way valve
2 core
2 core
signal
2 core
signal
230 V
2 core
2 core
2 core
signal
2 core
2 core
2 core
Only for *KSR3PA option
Only for *KRP1HB* & *KSOLHWAV1
Field supply
external thermistor
(indoor or outdoor)
Only for KRCS01-1 or EKRSCA1
230 V
230 V
communication
2 core
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