11
6-3. Test point diagram
6-3-2. Indoor controller board
SEZ-KC25VA.W
FAN
Fan motor output
CNDK
Connect to the indoor
power board (CNSK)
(220~240V AC)
FUSE
(6.3A 250V)
CND
Power
supply input
(220~240V AC)
SWE
Emergency operation
SW2
Capacity setting
Jumper connector
J11~J15
Unit setting
CN2L
Connector
(LOSSNAY)
CN51
Centrally control
CN29
Condenser/evaporator
temperature thermistor
(TH5)
CN21
Pipe temperature
thermistor/Liquid
(TH2)
CN20
Room temperature
thermistor (TH1)
CN22
Remote controller
connecting wire
(10.4~14.6V DC)
LED3
Transmission
(Indoor/outdoor)
LED2
Power supply
(R.B)
LED1
Power supply
(I.B)
CN2D
Connector to the indoor
power board (CN2S)
(12.5~13.7V DC)
CN3C
Transmission
(Indoor/outdoor)
(0~24V DC)
SW3
Mode selection
}
}
Non polarity
+
–
+
–
CN41
Connector
(HA terminal-A)
