Daikin Altherma EHVH/X11+16S18CB - Wiring Diagram: Indoor Unit

14 Technical data
Installer reference guide
92
ERHQ+ERLQ011~016 + EHVH/X11+16S18+26CB
Daikin Altherma – Low temperature split
4P384975-1C – 2018.02
14.5 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
X4M Booster heater terminal
Earth wiring
15
Wire number 15
Field supply
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Connection ** continues on page
12 column 2
1
Several wiring possibilities
Option
Not mounted in switch box
Wiring depending on model
PCB
Backup heater configuration
(only for *9W)
Backup heater configuration
(only for *9W)
3V3 (1N~, 230 V, 3 kW) 3V3 (1N~, 230V, 3kW)
6V3 (1N~, 230 V, 6 kW) 6V3 (1N~, 230V, 6kW)
6WN (3N~, 400 V, 6 kW) 6WN (3N~, 400V, 6kW)
9WN (3N~, 400 V, 9 kW) 9WN (3N~, 400V, 9kW)
6T1 (3~, 230 V, 6 kW) 6T1 (3~, 230V, 6kW)
User installed options User installed options
Bottom plate heater Bottom plate heater
Domestic hot water tank Domestic hot water tank
Domestic hot water tank with
solar connection
Domestic hot water tank with
solar connection
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
Solar pump and control station Solar pump and control station
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 * Solar pump station 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
B1L Flow sensor
BSK (A3P) * Solar pump station relay
DS1 (A8P) * DIP switch
E1A Electrical anode
E1H Backup heater element (1kW)
E2H Backup heater element (2kW)
E3H Backup heater element (3kW)
E4H * Booster heater (3kW)
F1B Overcurrent fuse backup heater
F2B * Overcurrent fuse booster heater
F1T Thermal fuse backup heater
F1U, F2U (A4P) * Fuse 5A 250V for digital I/O PCB
FU1 (A1P) Fuse T 6.3A 250V for PCB
K1M, K2M Contactor backup heater
K3M * Contactor booster heater
K5M Safety contactor backup heater (only for
*9W)
K*R (A1P, A4P) Relay on PCB
M1P Main supply pump
M2P # Domestic hot water pump
M2S # 2-way valve for cooling mode
M3S (*) 3-way valve for floor heating/domestic hot
water
PC (A4P) Power circuit
PHC1 (A4P) * Optocoupler input circuit
Q*DI # Earth leakage circuit breaker
Q1L Thermal protector backup heater
Q2L * Thermal protector booster heater
R1H (A3P) * Humidity sensor
R1T (A1P) Outlet water heat exchanger thermistor
R1T (A2P) Ambient sensor user interface
R1T (A3P) * Ambient sensor On/OFF thermostat
R2T (A1P) Outlet backup heater thermistor
R2T (A3P) * External sensor (floor or ambient)
R3T Refrigerant liquid side thermistor
R4T Inlet water thermistor
R5T (*) Domestic hot water thermistor
R6T * External indoor or outdoor ambient
thermistor
S1S # Preferential kWh rate power supply contact