TCL U-MATCH-R32 SERIES DC INVERTER AIR CONDITIONERS SERVICE MANUAL
91
3.3.7 J8,J9---
Over / under voltage protection
•
Test voltage between L &N, When the power supply V
>
AC260V or V
<
AC150V, AC
will display J8 or J9 protection, unit will recover back to previous status while V
>
AC155V.
•
Test voltage on the big size electrolytic capacitor of ODU PCB, When DC busbar
voltage V
>
DC420V or V
<
DC150V, unit will recover back to previous status while
DC190V
<
V
<
DC410V
Display J8 or J9
Is the power supply
voltage btw145-260V?
No
Wait until the AC
voltage recovery
Yes
Is the power supply
voltage btw145-260V?
Yes
No
Is the busbar voltage
btw150-420V(Single-
phase)
、
260-720V(Three-
phase)?
No
Wait until the busbar
voltage recovery
Yes
Unit works
normal?
Yes
No
Replace ODU PCB
End
Содержание U-MATCH-R32 Series
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