Si04-402A
Check
Service Diagnosis
109
5.1.8
Power Supply Waveforms Check
Check No.10
Measure the power supply waveform between pins 1 and 3 on the terminal board, and check
the waveform disturbance.
Check to see if the power supply waveform is a sine wave (Fig.1).
Check to see if there is waveform disturbance near the zero cross (sections circled in Fig.2)
5.1.9
Inverter Units Refrigerant System Check
Check No.11
[Fig.1]
[Fig.2]
Refrigerant system check
Check for gas leaks.
See the section on insufficient gas
detection.
Conduct the check after operating the
equipment for a sufficient length of time.
Correct the problem.
Conduct vacuum drying.
Replace the refrigerant.
Is
the discharge
thermister disconnected from
the holder?
(R1445)
YES
YES
YES
Is any moisture
found in sight glass.
NO
NO
Содержание FTXG25CVMAW
Страница 1: ...Inverter Pair Wall Mounted Type C Series Applied Models z z z zInverter Pair Heat Pump Si04 402A...
Страница 23: ...Printed Circuit Board Connector Wiring Diagram Si04 402A 14 Printed Circuit Board Connector Wiring Diagram...
Страница 167: ...Outdoor Unit Si04 402A 158 Removal Procedure When reassembling make sure to fit the hook Step Procedure Points...
Страница 181: ...Outdoor Unit Si04 402A 172 Removal Procedure...
Страница 185: ...Others Si04 402A 176 Others...
Страница 189: ...Wiring Diagrams Si04 402A 180 Appendix...