Bofa AD 350 - Operation; Manual Operation and Controls; Filter Status and System Failure Indicators

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11 Version 10.08.2011

OPERATION

Manual operation

Stainless steel AD units are turned on by depressing the green button on the front of

the extractor and turned off by depressing the red button. (See fig 9). Powder coated

AD units are turned on and off by means of a green, illuminated rocker switch on the

rear of the unit, (See Fig 9).

Fig 9

Filter condition and System failure signal - indicators

The LED’s on the front panel (see table below) indicate the following conditions

LED’S

SHOWING

INDICATES

Green Only

Unit is running - Filters are usable

Green & Amber

Pre or Combined Filter 75%

blocked

Green, Amber & Red

Pre or Combined Filter Blocked

and in need of replacing

Green, Amber & Red flashing

Fault with extractor.

This condition may occur for a few

seconds on start up

Red Alarm Light

Only used with optional extra Gas

Filter Change LED

Filter change procedures are explained in the Maintenance Section.