CN90
Connect to the wireless
remote controller receiver
board (CNB)
CN20
Room temperature
thermistor (TH1)
CNSA
Refrigerant sensor
LED2
Power supply (R.B)
LED1
Power supply (I.B)
LED3
Transmission
(Indoor/outdoor)
CN44
Pipe temperature
thermistor
1
–
2
: Liquid (TH2)
3
–
4
: Cond./Eva. (TH5)
CN105
IT terminal
CN3C
Transmission
(Indoor/outdoor)
(0–24 V DC)
SW2
Capacity setting
J11,J13,J14
Model selection
CN2L
Connector (LOSSNAY)
CN41
Connector (HA terminal-A)
CN22
Remote controller connecting
wire(10.4–14.6 V DC)
CN01
Connect to the Terminal Block
(TB4)
(Indoor/outdoor connecting line)
Between
3
and
5
220–240 V AC
SWE
Emergency operation
Jumper wire J41,J42
Pair No. setting for wireless
remote controller
FUSE
6.3A/250V
CN51
Centrally control
1
–
2
: Control signal
13V pulse input (
1
: +)
3
–
4
: Operation indicator
13 V DC (
3
: +)
3
–
5
: Malfunction indicator
13 V DC (
3
: +)
CNP
Louver motor output
(220–240 V AC)
CNMF
Fan motor
1
–
4
: 310–340 V DC
5
–
4
: 15 V DC
V
SP
: Voltage between pins of
C626
0 V DC (FAN stop)
1–6.5 V DC (FAN operation)
(Same as
6
(+)–
4
(−) of CNMF)
25
OCH724
Indoor controller board
9-6. TEST POINT DIAGRAM
