Mitsubishi Electric PEAD Series Service Manual page 45

TROUBLESHOOTING
12-5-2. Indoor controller board
PEAD-A09AA8
PEAD-A12AA8
PEAD-A15AA8
PEAD-A18AA8
PEAD-A24AA8
PEAD-A30AA8
PEAD-A36AA8
PEAD-A42AA8
CN105
CN41
CN32
SWE
SW1
SW2
CN3C
HWE2109A
CN22
CN90
CN4Y
SWE Emergency operation
SW1 Model selection
SW2 Capacity setting
CNXA2
CN105 Radio frequency interface
CNXC2
CNXB2
CN32 Remote start/stop adapter
CN22 For MA remote controller cabel
CN51
connection
(10 - 13 VDC (Between 1 and 3.))
CN51 Centralized control
CN2L
CN41 JAMA standard HA terminal A
CN44 Thermistor
CN24
(liquid/condenser/evaporator
CN20
temperature)
CN4F
CN4F Float thermistor
CN44
CN20 Thermistor (Inlet temperature)
CN24 Heater control (12VDC)
CN4Y For fan control
CN3C Indoor-outdoor transmission
(0 - 24VDC)
CN90 Wireless remote controlelr
CNXA2 Connect to the indoor controller board
CNXB2 Connect to the indoor controller board
CNXC2 Connect to the indoor controller board
CNXA1 Connect to the indoor power board
CNXB1 Connect to the indoor power board
CNXC1 Connect to the indoor power board
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