10 Technical data
Installation manual
42
ETSH/X(B)16P30+50EF
Daikin Altherma 3 H HT ECH
₂
O
4P679468-1 – 2022.02
Electrical connection diagram
For more details, please check the unit wiring.
1
X1M: 1-2-3-earth
X1M: 4-5-6
X15M: 3-4
X12M: 23-25
X12M: 24-25
A8P: X801M: 1-5
A8P: X801M: 2-5
A8P: X801M: 3-5
A8P: X801M: 4-5
A11P: X5: 4-5
A11P: X9: 1-2-3
X 2M: -
1 1 2
X 5M: 11-12
1
X 2M: -
1 7 8
X 5M:
1 5-6
X 2M: -
1 5 6
3
3
3
2×0.75
A15P: X1M: H-C-com
X2M: L-N
A2P: X1M: 1-3
230 V
230 V
230 V
230 V
A2P: X1M: C-com-H
X1M: 1-2-3-earth
A3P
- In case of signal cable: keep minimum distance to power cables >5 cm
Notes:
FIELD SUPPLY
(WLAN adapter module)
2-way valve
signal
2 core
signal
2 core
signal
2 core
signal
2 core
Power limitation demand input 4
communication
5 core
A20P: J2
Power limitation demand input 3
Power limitation demand input 2
Power limitation demand input 1
FIELD SUPPLY
OPTIONAL PART
Only for *KRP1AHTA
FIELD SUPPLY
INDOOR UNIT
Cooling/heating On/OFF output
Electricity meter pulse input 1
Circulation pump for domestic hot water
M S for cooling mode
4
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
(floo
r or ambient)
Only for *KRTETS
signal
2 core
(3m included)
A14P: P1-P2 user interface
Only for remote user interface
Only for *KRTR (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: X12M: 15-16-21-22
add: X12M: 19-20-21-22
main: X12M: 15-16-22
add: X12M: 19-20-22
Cooling/heating
On/OFF output
NO valve: X 2M: - 8
1 14 1
NC valve: X 2M: -
1 13 18
Changeover to
ext. heat source output
Alarm output
2 core
2x0.75
2 core
2x0.75
2 core
2x0.75
4 core
3 core
3 core
3 core
X1M: L-N-earth
Preferential kWh rate power supply contact
indoor unit power supply: 230 V + earth
outdoor unit power supply: 230 V + earth
oHV smartgrid control supply: 230 V
OUTDOOR UNIT
STANDARD PART
POWER SUPPLY
signal
signal
Only for heat pump convector
main: X12M: 15-22
add: X12M: 19-22
main & add: X12M: 9-10
signal
4 core
signal
1
Smartgrid contact S10S
Only for LV smartgrid
OPTIONAL PART
1
Smartgrid contact K1A
Only for HV smartgrid
Smartgrid relais K1A
Smartgrid relais K2A
2
4
X15M: 7-8
FIELD SUPPLY
2 core
2x0.75
Safety thermostat Q4L
X15M: 7
X15M: 8
2
5 or 3 core
X6M: L-N + earth
or L1-L2-L3-N + earth
backup heater power supply (3/6/9 kW):
400 V or 230 V + earth (F1B)
A11P: X3: 2-3-4
(BZ mixing kit)
communication
3 core
A30P: ST6
X 2M: -
1 3 4
X M: -
15 13 14
230 V
Solar input
2 core
X 2M: -
1 11 12
230 V
D
output
omestic hot water
2 core
Only for HV smartgrid
Smartgrid contact K2A
4
Only for LV smartgrid
Smartgrid contact S11S
4
X 5M:
1 9-10
Electricity meter pulse input 2
signal
2 core
5
Smartgrid pulse meter
5
Gas meter pulse input
5
X 5M:
1 1-2
External thermistor (indoor or outdoor)
signal
2 core
Only for KRCS01-1 or EKRSCA1
4D132247A
Summary of Contents for Altherma 3 H HT ECH20
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