For more details, please check the unit wiring.
4D121919
X5M: 9-10
A4P: Y1
X2M: 14a
A4P: X1-X2
X5M: 11-12
X2M: 1-2
X5M: 7-8
X5M: 5-6
X5M: 3-4
A8P: X801M: 1-5
A8P: X801M: 2-5
A8P: X801M: 3-5
A8P: X801M: 4-5
A4P: Y2
X2M: 14a
X12Y: 1-2
X21Y
X21Y
X21Y
X22YB
X21Y
X22YB
X2M: 30-31
X5M: 13-14-15-16
A16P: X13A
A15P: X4A
2x0.75
230 V
230 V
A3P: X1M: C-com-H
A4P: X1M: C-com-H
X2M: L-N
A3P: X1M: 1-3
2x0.75
230 V
230 V
230 V
F2B
F2B
F1B
F1B
F1B
F1B
1
1
2
2
3
3
4
4
5
5
5
X11M: 3-4-5-6
Power limitation demand input 1
Brine low pressure switch S1PL
Drain pump
Current sensors
Safety thermostat Q4L
Preferential kWh rate power supply contact
Power limitation demand input 2
Power limitation demand input 3
Power limitation demand input 4
FIELD SUPPLY
Only for preferential kWh rate power supply installation
Only for combined 3F power supply installation
Only for combined 1F power supply installation
Only for split 3F/1F power supply installation
Only for single cable power supply
Only for dual cable power supply
POWER SUPPLY
Only for split 1F/1F power supply installation
Compressor power supply: 230 V + earth
Backup heater power supply: 230 V + earth
Backup heater power supply: 400 V + earth
Backup heater & compressor power supply:
230 V + earth
Backup heater & compressor power supply:
400 V + earth
normal kWh rate power supply for indoor unit: 230 V + earth
Only for pressure loss detection
Only for preferential kWh rate unit power supply installation
Only with EKGSPOWCAB
Compressor power supply: 230 V + earth
Only with EKGSPOWCAB
POWER SUPPLY
FIELD SUPPLY
OPTIONAL PART
Only for EKCSENS
INDOOR UNIT
STANDARD PARTS
Alarm output
Changeover to external heat
source output
Only for EKRP1HB*
Note:
- In case of signal cable: keep minimum distance to power cables >5 cm
FIELD SUPPLY
Space heating On/OFF output
NO valve: X2M: 21-28
NC valve: X2M: 21-29
SHUT-OFF VALVE
main: X2M: 30-34-35
add: X2M: 30-34a-35a
signal
signal
main: X2M: 30-31-34-35
add: X2M: 30-31-34a-35a
signal
2 core
(3m included)
signal
main: X2M: 3-4-30-35
add: X2M: 3-4-30-35a
4 core
Only for EKRTR (wireless room thermostat)
Only for EKRTW (wired room thermostat)
Only for EKRTETS
2 core
communication
Only for BRC1HHDA*
signal
Only for KRCS01-1
signal
signal
2 core
EXTERNAL ROOM THERMOSTAT / HEAT PUMP CONVECTOR
(main and/or additional zone)
OPTIONAL PART
OPTIONAL PART
OPTIONAL PART
3 core for C/H operation
2 core for H only operation
5 core for C/H operation
4 core for H only operation
ethernet
FIELD SUPPLY
2 core
2 core
2 core
signal
2 core
2 core
2 core
2 core
signal
2 core
signal
2 core
signal
2 core
signal
2 core
signal
2 core
5 core
5 core
5 core
3 core
5 core
3 core
2 core
4 core
signal
2 core
signal
3 core
X2M: 5-6-earth
Only for heat pump convector
FIELD SUPPLY
Router for LAN adapter
A2P: P1-P2 user interface
R2T External sensor (floor or
ambient)
External indoor ambient thermistor
Electricity meter pulse input 2
Electricity meter pulse input 1
Main zone shut-off valve
Circulation pump for domestic hot water
Space heating On/OFF output
External heat source (e.g. boiler)
Alarm indication
Outdoor ambient sensor EKRSCA1
2 core
Only for EKRP1AHTA
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