Wiring Diagram: Indoor Unit - Daikin EGSQH10S18AA9W Installation Manual

8 Technical data
8.2

Wiring diagram: Indoor unit

See the internal wiring diagram supplied with the unit (on the inside of the indoor unit switch box cover). 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
User installed options
Remote user interface
Ext. indoor thermistor
Digital I/O PCB
Demand PCB
Brine pressure switch
connection kit
Main LWT
On/OFF thermostat (wired)
On/OFF thermostat (wireless)
Ext. thermistor
Heat pump convector
Add LWT
On/OFF thermostat (wired)
On/OFF thermostat (wireless)
Ext. thermistor
Heat pump convector
Position in switch box
English
Position in switch box
Legend
A1P Main PCB (hydrobox)
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)
A8P * Demand PCB
A9P Main PCB (refrigerant, brine)
A10P Main PCB (inverter)
CN* (A4P) * Connector
Installation manual
24
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
Not mounted in switch box
Wiring depending on model
PCB
User installed options
Remote user interface
External indoor thermistor
Digital I/O PCB
Demand PCB
Brine pressure switch
connection kit
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)
On/OFF thermostat (wireless)
External thermistor
Heat pump convector
Translation
Position in switch box
DS1 (A8P) * DIP switch
F1U, F2U (A4P) * Fuse 5 A 250 V
K*R Relay on PCB
M2P # Domestic hot water pump
M2S # Shut-off valve
Q*DI # Earth leakage circuit breaker
R1T (A3P) * Ambient sensor On/OFF thermostat
R1T (A9P) Ambient air sensor
R2T (A3P) * External sensor (floor or ambient)
R6T (A1P) * External indoor ambient thermistor
R1H (A3P) * Humidity sensor
S1P # Water pressure switch brine side
S1S # Preferential kWh rate power supply contact
S2S # Electrical meter pulse input 1
S3S # Electrical meter pulse input 2
S4S # Safety thermostat
S6S~S9S # Digital power limitation inputs
SS1 (A4P) * Selector switch
X*M Terminal strip
X*Y Connector
* = Optional
# = Field supply
Translation of text on wiring diagram
English
(1) Main power connection
For preferential kWh rate power
supply
Normal kWh rate power supply
Only for normal power supply
(standard)
Only for preferential kWh rate
power supply
Preferential kWh rate power
supply contact: 16 V DC
detection (voltage supplied by
PCB)
Switch box
Use normal kWh rate power
supply for hydro PCB
(2) Outdoor ambient sensor
Switch box
(3) Option external indoor
ambient sensor
Switch box
(4) User interface
Only for remote user interface
option
Switch box
(5) Option PCBs
Alarm output
Ext. heat source
Max. load
Translation
(1) Main power connection
For preferential kWh rate power
supply
Normal kWh rate power supply
Only for normal power supply
(standard)
Only for preferential kWh rate
power supply
Preferential kWh rate power
supply contact: 16 V DC
detection (voltage supplied by
PCB)
Switch box
Use normal kWh rate power
supply for hydrobox PCB
(2) Outdoor ambient sensor
Switch box
(3) Option external indoor
ambient sensor
Switch box
(4) User interface
Only for remote user interface
option
Switch box
(5) Option PCBs
Alarm output
External heat source
Maximum load
EGSQH10S18AA9W
Daikin Altherma ground source heat pump
4P351747-1F – 2016.06