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11 Technical data
S1NPL
Low pressure sensor
S1PH
High pressure switch
Y1E
Electronic expansion valve
Y1S
Solenoid valve (4-way valve)
Thermistors:
R2T (A7P)
Compressor discharge
R3T (A7P)
Compressor suction
R4T (A7P)
2 phase
R5T (A7P)
Brine IN
R6T (A7P)
Brine OUT
R1T (A1P)
Heat exchanger – water OUT
R2T (A1P)
Backup heater – water OUT
R3T (A1P)
Liquid refrigerant
R4T (A1P)
Heat exchanger – water IN
R5T (A1P)
Tank
R8T (A1P)
Tank
Connections:
Screw connection
Quick coupling
Brazed connection
Refrigerant flow:
Heating
Cooling
11.2
Wiring diagram: Indoor unit
See the internal wiring diagram supplied with the unit (on the inside of the front panel). The abbreviations used are listed below.
Notes to go through before starting the unit
English
Notes to go through before
starting the unit
X1M
X2M
X5M
15
**
/12.2
1
Backup heater power supply
1N~, 230 V, 3/6 kW
3N~, 400 V, 6/9 kW
User installed options
Remote user interface
Ext. indoor thermistor
Digital I/O PCB
Demand PCB
Brine low pressure switch
Main LWT
On/OFF thermostat (wired)
On/OFF thermostat (wireless)
Ext. thermistor
Heat pump convector
Add LWT
On/OFF thermostat (wired)
Installation manual
44
Translation
Notes to go through before
starting the unit
Main terminal
Field wiring terminal for AC
Field wiring terminal for DC
Earth wiring
Wire number 15
Field supply
Connection ** continues on page
12 column 2
Several wiring possibilities
Option
Mounted in switch box
Wiring depending on model
PCB
Backup heater power supply
1N~, 230 V, 3/6 kW
3N~, 400 V, 6/9 kW
User installed options
Remote user interface (Human
Comfort Interface)
External indoor thermistor
Digital I/O PCB
Demand PCB
Brine low pressure switch
Main leaving water temperature
On/OFF thermostat (wired)
On/OFF thermostat (wireless)
External thermistor
Heat pump convector
Additional leaving water
temperature
On/OFF thermostat (wired)
English
On/OFF thermostat (wireless)
Ext. thermistor
Heat pump convector
Position in switch box
English
Position in switch box
Legend
A1P
Main PCB (hydro)
A2P
* User interface PCB
A3P
* On/OFF thermostat
A3P
* Heat pump convector
A4P
* Digital I/O PCB
A4P
* Receiver PCB (Wireless On/OFF
thermostat, PC=power circuit)
A6P
Backup heater control PCB
A7P
Inverter PCB
A8P
* Demand PCB
A15P
LAN adapter
A16P
ACS digital I/O PCB
CN* (A4P)
* Connector
CT*
* Current sensor
DS1 (A8P)
* DIP switch
F1B
# Overcurrent fuse
F1U~F2U(A4P)
* Fuse (5 A, 250 V)
F2B
# Overcurrent fuse compressor
K*R (A4P)
Relay on PCB
K9M
Thermal protector backup heater relay
M2P
# Domestic hot water pump
M2S
# Shut-off valve
M3P
# Drain pump
PC (A4P)
* Power circuit
PHC1 (A4P)
* Optocoupler input circuit
Q*DI
# Earth leakage circuit breaker
Translation
On/OFF thermostat (wireless)
External thermistor
Heat pump convector
Translation
Position in switch box
EGSAH/X06+10UD
Daikin Altherma 3 GEO
4P598591-1C – 2023.02
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