Daikin Altherma EJHA-AV3 Installation Manual page 31

MRM*, MR30 Magnetic relay
(PCB1)
M1C Compressor motor
M1F Fan motor
PAM (PCB1) Pulse-amplitude modulation
PCB1 Printed circuit board (main)
PS (PCB1) Switching power supply
Q1L Thermal protector
R1T Thermistor (outdoor air)
R2T Thermistor (heat exchanger)
R3T Thermistor (compressor discharge)
Electrical connection diagram in case of *HY2KOMB28+32AA gas boiler
For more details, please check the unit wiring.
TYPICAL CONFIGURATION
OUTDOOR INDOOR
Boiler
Power supply
unit power supply:
230 V + earth
FIELD SUPPLY
DHW PUMP
OPTIONAL PART
Bottom plate heater
Power supply
3 core
unit power supply:
230 V + earth
OPTIONAL PART
DOMESTIC HOT WATER TANK
R5T - thermistor water temperature
3-WAY VALVE
M3S (when tank is installed)
selection domestic hot water–floor heating
EJHA04AAV3
Daikin Altherma H Hybrid – Heat pump module
4P530607-1D – 2020.02
Notes:
- In case of signal cable: keep minimum distance to power cables >5 cm
- Available heaters: see combination table
-
- Field setting: [C-02]=0
Standard: 2 low voltage wires
2 low voltage wires
STANDARD PART
OUTDOOR UNIT - HYDRO
3 core
X2M: 1-2-3
3 core
X2M: 1-5-6
230V
A1P: X14A-earth
BOILER BOX
INDOOR
X2: 2-4-earth
X4: 9-10
signal
X2: 3-5-6
230 V
S1PH High pressure switch
SA1 (PCB1) Surge arrestor
S* (PCB1) Connector
U, V, W (PCB1) Connector
V* (PCB1) Varistor
X11A Connector
X*M Terminal strip
Y1E Electronic expansion valve
Y1S Solenoid valve (4‑way valve)
Z*C Noise filter (ferrite core)
Z1F (PCB1) Noise filter
: field supplied
Only for EKRSCA1
X5M: 5-6
External outdoor temperature sensor
2 core
Only for EKRUHML*
2×0.75
X5M: 1-2 A14P: P1-P2 user interface
communication
2 core
2×0.75
communication
Only for BRP069*
A13P: P1-P2 LAN adapter
1
Only for EKRTW
(wired room thermostat)
2 core
A3P: X1M:
X4: 6-7
C-com-H
230 V
1
Only for EKRTR
(wireless room thermostat)
2 core
A4P:
X4: 6-7
X1M: H-com
230 V
1
Only for
(heat pump convector)
2 core
X4: 6-7 X11M: 5-6
230 V
9 Technical data
OPTIONAL PART
OPTIONAL PART
OPTIONAL PART
Only for EKRTETS
R2T External sensor
(floor or ambient)
A3P: 2 core
(3m included)
X1M: 1-3
signal
4D115768A
Installation manual
31