6. Maintenance and inspection

6-3 Replacing the fan

The fan in the unit has an expected lifespan of approximately 5 years.

Replace it when the Error Lamp is lit and the fan is stopped.

Caution

When this product is used in compliance with UL standards or CE marking, do not replace the fan.

Fan replacement does not comply with UL, CE standards or CE marking.

The fan can be replaced while the unit is in operation (power supply is being output) or while the unit is stopped (power supply output is stopped). Choose whichever replacement method is more convenient.

*If the fan stops or is removed while the unit is in operation, the “EF” lamp blinks, the beep sounds continu- ously, and output is supplied through bypass operation.

In this state, if an input power supply error occurs due to a power failure or other reason, the unit stops without entering Battery Mode.

*Do not replace the fan while in Battery Mode. The unit will stop.

Precautions when replacing the fan

Warning

Do not insert your hand or metal objects into the fan recess.

Doing so may cause electric shock or short-circuit.

Do not put your fingers into the fan.

The fan spins when the AC input plug is connected to a wall outlet (commercial power).

Doing so may result in injury.

Detect abnormally working fans.

(Not rotating, abnormal noise, vibrating, the fan contacting the cover, etc)

BU1002SW Rear view

Cooling Fan

Model: BUF1002S

BU1002SW Rear view

BU3002SW Front view

(after removing the front panel)

 

バッテリ

ブザー停止/テスト

電源出力

増設

 

バイパス

バッテリ

 

運転

交換

 

 

Cooling Fan

 

Model: BUF3002S

 

* Different model from

Cooling fan

the rear cooling fan

Model: BUF1002S

 

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Omron BU3002SW, BU1002SW specifications Replacing the fan, Do not put your fingers into the fan