Daikin Super Multi NX C-Series Service Manual page 240

SiE12-411
Step
6 The figure shows the
controller PCB.
2. Removing the service
monitor PCB
1 Remove the service
monitor PCB by
releasing its tab.
3. Removing the inverter
PCB
1 Remove the 9 screws
of the inverter PCB.
Removal Procedure
Procedure
S93 S92
S80
S23
S22
S21
S20
S40
S31 S71 S33
Service monitor
LED A
LED 1
LED 2
LED 3
LED 4
Tab
Fuse cover
S90
Rectifier
stack
S32
Priority-room setting (SW4)
Wiring error check (SW3)
Forced operation (SW1)
Night quiet mode (SW5)
Cooling / heating mode lock
(SW2)
Glass tube fuse (3A)
Outdoor Unit (80 / 90 Class)
Points
S20: Electronic expansion valve
coil A port
S21: Electronic expansion valve
coil B port
S22: Electronic expansion valve
coil C port
S23: Electronic expansion valve
coil D port
S31: To CN14 (Pin 9)
S32: To CN11 (Pin 5)
S33: To S34 (Pin 10)
S40: Overload relay
S71: To S72 (Pin 8)
S80: Four way valve coil
S90: Thermistor (Outdoor air,
heat exchanger, and
discharge pipe)
S92: Gas pipe thermistor
S93: Liquid pipe thermistor
229