Abatement Technologies HEPA-AIRE PAS600 Gebrauchsanweisung - Seite 10

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Warning: To reduce the risk of fire, electrical shock or personal injury, always turn the unit "OFF" and

disconnect the power cord from supply receptacle before replacing the HEPA filter and before cleaning

or servicing the unit.

Filter Change Indicator

The Filter Change Indicator light illuminating indicate one or more of the following:

1. Loaded filter(s). Refer to FILTER CHANGE PROCEDURE.

2. Restrictions on air intake. Refer to TROUBLESHOOTING GUIDE.

Filter Change Procedure

The Filter Change Indicator light located on the control panel will indicate when one or more of the filters need

to be changed. This is based on a factory setting and the filters can be changed earlier, if desired, to maintain

a minimum air flow requirement. Since the Filter Change Indicator Light is based on the pressure drop across

all of the filters, it cannot indicate specifically which filter needs to be changed. Therefore, when the Filter Change

Indicator Light illuminates, the first stage filter should be changed first to see if the light turns off. If the light

remains, then the second stage filter should be changed. If the light remains, then the HEPA filter should be

changed.

Changing the First Stage Filter:

1. With the unit operating, turn the latches on the pre-filter access door counter-clockwise and open the

door.

2. To remove the first-stage filter, lift the second stage pleated filter up until the bottom clears the filter door

cavity. Tilt the bottom of the pleated filter out and remove.

3. Replace the first stage filter with a new one. Reseat the second stage filter into the filter door cavity.

4. Close the door and lock it in position by turning the latch clockwise. Make sure the door is flush against

the PAS600 cabinet before closing latch.

5. If the Filter Change Indicator light remains "ON" after changing the first-stage filter, the second stage

filter should be replaced.

Changing the Second Stage Filter:

1. With the unit operating, turn the latches on the pre-filter access door counter-clockwise and open the

door.

2. Open the pre-filter access door.

3. Remove the second-stage filter by lifting it up until the bottom clears the filter door cavity. Tilt the bottom

of the pleated filter out and remove. Replace it with a new one.

Note: If an alternate VAPOR-LOCK® filter is being used, be sure to remove it from its poly bag before

installing it in the unit. VAPOR-LOCK® filters are packaged in poly bags to preserve the integrity of the

carbon granules.

4. Close the door and lock it in position.

5. If the Filter Change Indicator light remains "ON" after changing the second-stage filter, the HEPA filter

should be replaced.

Changing the HEPA Filter:

1. Turn the unit "OFF", disconnect the unit's power cord from the electrical outlet and open the pre-filter

access door.

2. Remove the bolts that secure the HEPA filter retaining brackets in place (remove the lower bracket first,

then the top bracket), set the brackets and bolts aside, and remove the HEPA filter from the cabinet.

3. Orient the new HEPA filter so that the pleats are in the vertical position. For reference purposes, the top

panel of the filter has various labels affixed to it and the rear of the filter is the gasketed end. Carefully

install the new HEPA filter (P/N: H161606-99) inside the cabinet, gasketed end first. Position the filter

inside the cabinet so that it is flush against its sealing surface.

4. Re-attach the HEPA filter retaining brackets to secure the filter in its proper position. The top bracket

should be re-attached first, then the bottom bracket. Do not over-tighten the bolts.

Note: The HEPA filter is delicate and should be handled with care. When removing or reattaching the

HEPA filter retaining brackets, do not touch the filter media; otherwise, damage to the filter and leakage

of contaminated air could result.