Check
Si01-406
120
Service Diagnosis
5.8
Inverter Units Refrigerant System Check
Check No.11
5.9
Capacitor Voltage Check
Check No.12
< Measuring method >
Before measuring, operate the unit for several minutes, then shut down the operation by force
using the circuit breaker.
If the unit is shut down using the remote controller instead of the circuit breaker, the
capacitor discharges the electric load, thus disallowing accurate measurement.
Note:
The charge section is applied with high voltage. Therefore, exercise caution during
measurement to prevent electric shock.
< Measuring positions >
Take measurements at the power transistor (+) and (-) terminals in the same way as described
in section 1.
Set the multi-tester to DC and VOLTAGE RANGE before measurement.
∗
Since capacitor (+) and (-) are connected to power transistor (+) and (-), capacitor voltage
can be measured at the power transistor (+) and (-) terminals.
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 FT25CV1A
Страница 7: ...Si01 406 vi Table of Contents...
Страница 15: ...Functions Si01 406 4 List of Function...
Страница 21: ...Specifications Si01 406 10 Specifications...
Страница 31: ...Printed Circuit Board Connector Wiring Diagram Si01 406 20 Printed Circuit Board Connector Wiring Diagram...
Страница 189: ...R50 60CV1A Si01 406 178 Removal Procedure 6 Remove the screw 7 Take off the electrical parts box Step Procedure Points...
Страница 205: ...Wiring Diagrams Si01 406 194 Appendix...
Страница 209: ...Si01 406 iv Index...