Digital I/O Pcb (Option Pcb A7P) - Daikin ALTHERMA HT Service Manual

ESIE09-08B
2.8

Digital I/O PCB (Option PCB A7P)

Digital I/O PCB (option PCB A7P)

X1
X2
X3
X4
Digital I/O PCB (option PCB A7P)
X2M
F1U
F2U
X1A
Refrigerant Circuit
X1A
X2A/CN2
OFF
SS1
X1M
YC Y1 Y2 Y3 Y4
PCB Layout for EKHBRD 011/014/016 AA/AB/AC/AD V1/Y1
YC Y1
Connector Color
X1A White
X2A White
X1 -
ON
X2 -
X3 -
X4 -
Y1 - YC -
Y3 - YC -
X2A / CN2
Connected to - function
X2M [6 - 7]
X33A of main PCB (A1P)
Cooling/heating ON/OFF output
(optional power supply)
Alarm output (optional power
supply)
Domestic hot water mode ON/OFF
output
Solar priority
43