Mitsubishi Electric SLZ Series Technical & Service Manual page 24

8-5. TEST POINT DIAGRAM
8-5-1. Indoor controller board
SLZ-KF09NA.TH SLZ-KF12NA.TH SLZ-KF15NA.TH SLZ-KF18NA.TH
CN22
Connect to the terminal block (TB5)
(Remote controller transmission line)
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
CN4Z
i-see Sensor (Sensor)
CN24
Back-up heating
CNP
Drain pump (DP)
–
(Same as 6(+)–4
CNMF
Fan motor (MF)
– : 310–
–
OCH669A
CN5Y
i-see Sensor motor (MT)
24
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
: +)
– : Operation indicator
: +)
– : Malfunction indicator
: +)
CN41
HA terminal-A
CN2L
Lossnay
LED1
Power supply (I.B)
CN3C
Connect to the terminal block
(TB4)
(Indoor/outdoor connecting line)
CN01
Connect to the terminal block
(TB4)
(Indoor/outdoor connecting line)
–
F1
FUSE