Daikin Altherma EKHBH Series Service Manual page 57

ESIE06-03
Connectors The table below describes the PCB connectors for EKHBH(X).
Connector Connected to Terminal nr. Description
X1A
X2A
X3A
X4A
X5A
X6A
X7A
X8A
X9A
X10A
X11A
X12A
X13A
X14A
X15A
X16A
X17A
X18A
X19A
X20A
X21A
Part 1 – System Outline
TR1 -
TR1 -
Q1L 24-25
S1L -
R1T (A1P) -
R2T -
R3T -
R4T -
R5T -
- -
K1M -
K2M -
K3M -
- -
M1P -
M3S 19-20
PCB (A3P) 13-15-17-23
PCB (A2P) -
ERYQ 9-10-11
M2S 14-16-18
Q2L 21-22
Transformer (220 V/24 V)
Transformer (220 V/24 V)
Thermal protector backup heater
Flowswitch
Outlet water heat exchanger thermistor
Outlet water backup heater thermistor
Refrigerant liquid side thermistor
Inlet water thermistor
SWW thermistor (EKSWW option)
VRV checker connection
Contactor backup heater step 1
Contactor backup heater step 2
Contactor booster heater
Not Applicable
Pump
3-way valve: floorheating/sanitary warm water
Thermostat (Field supply)
Remote controler PCB
Therminal nr. 9-11: internal wiring to outdoor
2-way valve for cooling
Thermal protector booster heater
PCB Layout
1
3
4
5
1–57