•Altherma
TM
• Indoor units
31
• Indoor units • EKHBH-X008AA
6 Wiring diagram
6 - 1 Wiring diagram
1
6
3TW57786-4B
EKHBH(X)008AA6WN/9WN
Outdoor unit
Power supply
3(/N)∼400(/230V) 50Hz
>> See note 2 <<
User interface
Only forEKHS*V3
Option
Example field
supply
thermostat
Option
Field wiring
Wiring dependent
on model
Wire colour
See note 7
For EKHWSU*V3 Option
NO valve
NC valve
heating
cooling
230V AC
supply from PCB
Only for EKHW
Option
Only for EKHW
Option
Only for EKSOLHWAV1
Option
Domestic hot
water tank
Domestic hot water
tank
See note 7
For EKHWSU*V3 Option
Solar pump connection
Only for EKRP1HB &
ESOLHWAV1
Option
Alarm output
Cooling/heating
on/off output
Solar input
3 wire type (SPST)
Only
for EKSOLHWAV1
Option
See note 9
Field wiring
PCB
See note 8
Domestic hot
water tank
Only for EKHWS*Z2
Option
Electric heater fuse
Model 6WN 9WN
F1B 16A 20A
EKHW kit fuse
F2B 20A
Only forEKHWS*Z2
Option
Domestic hot water
tank
Notes:
1 This wiring diagram only applies to the indoor unit.
2
Use one and same dedicated power supply for indoor ubit, outdoor unit and EKHW option.
3
:Field wiring No/Nc normal open/normal closed SPST - single pole single throw.
4
:Terminal strip :Connector :Terminal :Protective earth
5
Do not operate the unit by short-sircuiting any protection device.
6
BLK: Black / WHT: White / RED: Red / BLU: Blue / PINK: Pink / YLW: Yellow
BRN: Brown / GRY: Grey / GRN: Green / ORG: Orange / VIO: Violet
7 For EKHWSU*V3, refer to option manual
8 Option PCB works with an external 230V AC power supply unit. (N,L)
9 For EKSOLHWAV1, refer to option manual
Only for EKHW(S/E)* Option
Domestic hot water
tank
Domestic hot water
tank
Only forEKHWE*V3
Option
Only forEKHWE*Z2
Option
Only
for EKHWE Option
Only
for EKHW(S/E)* Option
Only
for EKRTETS* Option
Only
for EKRTR* Option
Only
for EKRTW Option
X1M-X9M : Terminal strips
V2S : Spark suppression 2
V1S : Spark suppression 1
FU1 : Fuse 3.15A T 250V
FU2 : Fuse 5A T 250V
FuS, FuR : Fuse 5A 250V for solar/remote alarm PCB
Q1DI : Earth leakage protector
Q2L : Thermal protector booster heater
Q1L : Thermal protector backup heater
S1S : Solar pumpstation relay
SS1 : DIP switch
TR1 : Transformer 24V for PCB
R5T : Domestic hot water thermistor
R4T : Inlet water thermistor
R3T : Refrigerant liquid side thermistor
R2T : Outlet water backup heater thermistor
R2T (EKRTETS) : External sensor (floor or ambient)
R1T : Outlet water heat-exchanger thermistor
R1H (EKRTR) : Humidity sensor
R1T (EKRTW/R) : Ambient sensor
S1L : Flowswitch
E4H : Booster heater (3kW)
E1H-E3H : Backup heater element 1-3
M3S : 3way valve: floorheating/domestic hot
water
M2S : 2 way valve for cooling mode
M1P : Pump
PHC1 : Optocoupler input circuit
K5M : Contactor for backup heater all-pole
disconnection
K7M : Relay for solar pump
K3M : Contactor booster heater
K1M/K2M : Contactor backup heater step 1/2
F2B : Fuse booster heater
F1B : Fuse backup heater
F1T : Thermal fuse backup heater
A4P (EKRTR) : Receiver PCB
A4P (EKRP1HB) : Solar/remote alarm PCB
A3P : Thermostat (PC=power circuit)
A2P : User interface PCB
A1P : Main PCB
3TW57786-6B
EKHBH(X)008AA6T1/9T1
Outdoor unit
Power supply
3∼230V 50Hz
>> See note 2 <<
User interface
Only for EKHWS*V3
Option
Example field
supply
thermostat
Option
Field wiring
Wiring dependent
on model
See note 7
For EKHWSU*V3 Option
NO valve
NC valve
heating
cooling
230V AC
supply from PCB
Only for EKHW
Option
Only for EKHW
Option
Only for EKSOLHWAV1
Option
Domestic hot water
tank
Domestic hot water
tank
See note 7
For EKHWSU*V3
Option
Solar pump connection
Only for EKRP1HB &
EKSOLHWAV1
Option
Alarm output
Cooling/heating
on/off output
Solar input
3 wire type (SPST)
Only for EKSOLHWAV1
Option
See note 9
Field wiring
PCB
See note 8
X1M-X9M : Terminal strips
V2S : Spark suppression 2
V1S : Spark suppression 1
FU1 : Fuse 3.15A T 250V
FU2 : Fuse 5A T 250V
FuS, FuR : Fuse 5A 250V for solar/remote alarm PCB
Q1DI : Earth leakage protector
Q2L/Q3L : Thermal protector booster heater
Q1L : Thermal protector backup heater
S1S : Solar pumpstation relay
SS1 : DIP switch
R5T : Domestic hot water thermistor
R4T : Inlet water thermistor
R3T : Refrigerant liquid side thermistor
R2T : Outlet water backup heater thermistor
R2T (EKRTETS) : External sensor (floor or ambient)
R1T : Outlet water heat-exchanger thermistor
R1H (EKRTR) : Humidity sensor
R1T (EKRTW/R) : Ambient sensor
S1L : Flowswitch
E4H : Booster heater (3kW)
E1H-E3H : Backup heater element 1-3
M3S : 3way valve: floorheating/domestic hot water
M2S : 2 way valve for cooling mode
M1P : Pump
PHC1 : Optocoupler input circuit
K5M : Contactor for backup heater all-pole
disconnection
K7M : Relay for solar pump
K3M : Contactor booster heater
K1M/K2M : Contactor backup heater step 1/2
F2B : Fuse booster heater
F1B : Fuse backup heater
F1T : Thermal fuse backup heater
A4P (EKRTR) : Receiver PCB
A4P (EKRP1HB) : Solar/remote alarm PCB
A3P : Thermostat (PC=power circuit)
A2P : User interface PCB
A1P : Main PCB
Notes:
1 This wiring diagram only applies to the indoor unit.
2
Use one and same dedicated power supply for indoor ubit, outdoor unit and EKHW option.
3
:Field wiring No/Nc normal open/normal closed SPST - single pole single throw.
4
:Terminal strip :Connector :Terminal :Protective earth
5
Do not operate the unit by short-sircuiting any protection device.
6
BLK: Black / WHT: White / RED: Red / BLU: Blue / PINK: Pink / YLW: Yellow
BRN: Brown / GRY: Grey / GRN: Green / ORG: Orange / VIO: Violet
7 For EKHWSU*V3, refer to option manual
8 Option PCB works with an external 230V AC power supply unit. (L,N)
9 For EKSOLHWAV1, refer to option manual
Option
Field wiring
Wiring dependent
on model
Wire colour
Field wiring
PCB
Only for EKHW(S/E) Option
Electric heater fuse
Model 6T1 9T1
F1B 20A 32A
kit fuse
F2B 20A
Only for EKHWE*V3
Option
Domestic hot water
tank
Only for EKRTR Option
Only for EKRTW
Option
Only for EKRTETS
Option
Only for EKHW(S/E)
Option
Only for EKHWE
Option
EKHW
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