3TW57816-2
EKHBH(X)016AB3V3
Outdoor unit
Power supply
230V 1N∼50Hz
>> See note 2 <<
User interface
Only forEKHW*V3
Option
Thermostat
On/Off
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 EKSWW
option
Only for EKHW Option
Only for EKSOLHWAV1
Option
Domestic hot
water tank
Electric heater option fuse
F1B 20A
EKHW kit fuse
F2B 20A
Domestic hot
water tank
See note 7
For EKHWSU*V3
Option
Solar pump
connection
Only for EKRP1HB
Option
Alarm output
Unit on/off output
Solar input
Spring
return type
3wiretype
(SPST)
Only
for EKHW*V3
Option
See note 9
Field wiring
PCB
See note 8
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/No 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.
9 For EKSOLHWAV1, refer to option manual
X1M-X4M : 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
R1T : Outlet water heat-exchanger thermistor
S1L : Flowswitch
E4H : Booster heater
E1H : Backup heater element 1
M3S : 3way valve: floorheating/domestic hot water
M2S : 2 way valve for cooling mode
M1P : Pump
PHC1 : Aplocoupler input circuit
K5M : Contactor for backup heater all-pole
disconnection
K7M : Relay for solar pump
K4M : Pump Relay
K3M : Contactor booster heater
K1M : Contactor backup heater Step 1
F2B : Fuse booster heater
F1B : Fuse backup heater
F1T : Thermal fuseBack up heater
A4P : Solar/remote alarm PCB
A3P : Thermostat (PC-power circuit)
A2P : User interface PCB
A1P : Main PCB
Only for EKHW*V3 Option