9 Technical data
Installation manual
28
08SU EHVH08~16SU26CB6W
Daikin Altherma – Low temperature split
4P449980-1B – 2016.11
9.3
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
Translation
Notes to go through before
starting the unit
Notes to go through before
starting the unit
X1M
Main terminal
X2M
Field wiring terminal for AC
X5M
Field wiring terminal for DC
X6M, X7M
Backup heater terminal
Earth wiring
15
Wire number 15
Field supply
**
/12.2
Connection ** continues on page
12 column 2
1
Several wiring possibilities
Option
Not mounted in switch box
Wiring depending on model
PCB
Internal backup heater
configuration
Internal backup heater
configuration
1N~, 230 V, 6 kW
1N~, 230 V, 6 kW
3~, 230 V, 6 kW
3~, 230 V, 6 kW
3N~, 400 V, 6 kW
3N~, 400 V, 6 kW
User installed options
User installed options
Bottom plate heater
Bottom plate heater
Remote user interface
Remote user interface
Ext. indoor thermistor
External indoor thermistor
Ext outdoor thermistor
External outdoor thermistor
Digital I/O PCB
Digital I/O PCB
Demand PCB
Demand PCB
Main LWT
Main leaving water temperature
On/OFF thermostat (wired)
On/OFF thermostat (wired)
On/OFF thermostat (wireless)
On/OFF thermostat (wireless)
Ext. thermistor
External thermistor
Heat pump convector
Heat pump convector
Add LWT
Additional leaving water
temperature
On/OFF thermostat (wired)
On/OFF thermostat (wired)
On/OFF thermostat (wireless)
On/OFF thermostat (wireless)
Ext. thermistor
External thermistor
Heat pump convector
Heat pump convector
Position in switch box
English
Translation
Position in switch box
Position in switch box
Legend
A1P
Main PCB
A2P
User interface PCB
A3P
*
On/OFF thermostat (PC=power circuit)
A3P
*
Heat pump convector
A4P
*
Digital I/O PCB
A4P
*
Receiver PCB (Wireless On/OFF
thermostat)
A5P
Anode driver PCB
A8P
*
Demand PCB
DS1(A8P)
*
DIP switch
F1B
Overcurrent fuse backup heater
F2B
Overcurrent fuse booster heater
F1U, F2U
*
Fuse 5 A 250 V for digital I/O PCB
PHC1 (A4P)
*
Optocoupler input circuit
K*R
Relay on PCB
K1M, K2M
Contactor backup heater
K3M
Contactor booster heater
K5M
Safety contactor backup heater
M2P
#
Domestic hot water pump
M2S
#
Shut-off valve
Q*DI
#
Earth leakage circuit breaker
Q1L
Thermal protector backup heater
Q2L
Thermal protector booster heater
R1T (A3P)
*
Ambient sensor On/OFF thermostat
R2T
*
External sensor (floor or ambient)
R6T
*
External indoor or outdoor ambient
thermistor
R1H (A3P)
*
Humidity sensor
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
TR1
Power supply transformer
X*M
Terminal strip
X*Y
Connector
* =
Optional
# =
Field supply
Colours
BLK
Black
BRN
Brown
GRY
Grey
RED
Red
