Mitsubishi Electric Mr.Slim PLA-A24EA7 Service Manual page 30

9-7. TEST POINT DIAGRAM
Indoor controller board
PLA-A12EA7
PLA-A30EA7
TB5
Connect to wired remote controller
10.4–14.6 V DC
CN90
Connect to the wireless
remote controller board (CNB)
LED2
Power supply
(Wired remote controller)
CN44
Pipe temperature thermistor
– : Liquid (TH2)
– : Condenser/evaporator (TH5)
CN20
Room temperature thermistor
(TH1)
CN4F
Drain float switch (FS)
CN105
IT terminal
CN4Z
i-see Sensor (Sensor)
CN24
Back-up heating
CNP
Drain pump (DP)
– : 13 V DC
Vsp
Voltage between pins of C626
0 V DC (FAN stop)
1–6.5 V DC (FAN operation)
(Same as 6(+)–4
CNMF
Fan motor (MF)
– : 310–340 V DC
– : 15 V DC
OCH640C
PLA-A18EA7
PLA-A36EA7
PLA-A24EA7
PLA-A42EA7
CN5Y
i-see Sensor motor (MT)
12 V pulse output
30
CNV
Vane motor (MV)
12 V pulse output
SW1
Model selection
J41, J42
Jumper wire
(Pair No. setting with
wireless remote controller)
SW2
Capacity setting
LED3
Communication
(Indoor-outdoor)
SWE
Jumper switch
(Emergency operation)
CN32
Remote switch
CN51
Centrally control
– : Control signal
13 V DC pulse input ( : +)
– : Operation indicator
13 V DC ( : +)
– : Malfunction indicator
13 V DC ( : +)
CN41
HA terminal-A
CN2L
Lossnay
LED1
Power supply (I.B)
CN3C
Connect to the terminal block
(TB4)
(Indoor/outdoor connecting line)
0–24 V DC (Communication)
CN01
Connect to the terminal block
(TB4)
(Indoor/outdoor connecting line)
– : 220–240 V AC
F1
FUSE
(6.3A/250 V)