Owner manual

DC_link voltage under/over error, Over voltage protection error/PFC over load

Indoor display

ሱلሱ

Outdoor error

Outdoor display

لمሱ

DC_link voltage under/over error

Over voltage protection error

PFC over load

1.Checklist :

1) Is the input voltage of outdoor terminal block is normal?

2) Is the input voltage is higher than 300Vac?

3) Is the reactor wire connected?

3) Is the DC_link capacitor(A*V18***:CE101,CE102,CE103,A*V24***:CE001,CE002,CE003,CE004)) assembled in accordance

the specification? (Outdoor PBA)

4) Is the DC_link resistor(A*V18***:R104,R106,R107,R108,A*V24***:R004,R005,R006,R007) value is normal? (Outdoor PBA)

2. Troubleshooting procedure

Is the connected of reactor wire?

(PBA-Reactor)

Is the DC_link sensing voltage(R104

or R004) is normal in operaƟon

mode?

Normal range (0.2Vdc~2.8Vdc)

YES

Exchange the Outdoor PBA

Is the DC_link voltage (CE101 or

CE001) is normal in operaƟon

mode?

Normal range(280Vdc~320Vdc)

Check the input power

YES

Connect the reactor wire

Restart aŌer power oī.

Is the the input voltage is nomal?

Normal range(180Vac ~ 270Vac)

Restart aŌer power oī.

Start the operaƟon (cooling mode or heaƟng mode)

Check the input power in the powercord.

YES

Exchange the Reactor

Is the reactor insulaƟon damaged?

Exchange the Outdoor PBA

YES