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5 69-1161M
F57A/B
Replacing the Cell and Prefilter
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• Before replacing the cell it should be visually examined for bent or damaged collector plates or broken ioniser
wires. Bent or warped plates can be formed back into shape. This should be done to prevent the arcing sound
which is caused by the plates being too close together. Do NOT use cells until broken ioniser wires are
removed. If the broken wire is in the middle of the cell, replace with one of the wires from either end. This will
ensure the cell operates at reasonably high efficiency until a replacement is obtained from your installer or
service dealer.
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• When replacing the cell in the air cleaner make sure the airflow arrow on the cell is pointing upward toward the
fan and that the contact board is facing the contact terminals in the air cleaner.
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• Ease the edge of the cell into the retaining hooks.
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• Using both hands pivot the cell until the contact board is level with the frame.
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• With one hand supporting the cell near the latch, rotate the latch 90° to close.
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• Replace the prefilter in the access cover.
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• If necessary, replace the activated carbon filter. New filters can be obtained from your local dealer. Note that
this filter cannot be washed.
• Swing the access cover back to the closed position. You will hear a click as the latches lock home.
SERVICE CHECKS
Some faults can be checked without the need to call your service dealer.
• If the system ON light does not come on....Check the access cover is firmly closed and latched. If the cover is
not closed properly a safety switch keeps the air cleaner off.
• If the CHECK light comes on....Ensure that the cell is clean and dry. Check for damaged or shorted ioniser
wires.
• Some models have a WASH light. If this comes on....Check that the cell is properly located in the air cleaner.
Wash the cell and prefilter. Wipe the ioniser wires to remove any remaining deposits.
• If the air cleaner arcs (cracks) too frequently....The cell may be wet from washing. Turn the air cleaner off for
two hours to dry. Check the cell for broken ioniser wires or bent collector plates.
• If you smell ozone it could be because the cell is new. The small amount of ozone produced when the air
cleaner is running may be higher than usual during the first week or two of operation, until the cell is ‘burned in’.
Normal use and the first cleaning usually takes away this smell. If,
however, the smell of ozone remains objectionable one of two
things can be done to remedy the situation.
- Open the access cover and move the Performance Switch
to position “LO”. Note that this will reduce cleaning efficiency by
5-15% depending on airflow speed.
- Install the optional activated carbon filters.
• If your air cleaner still does not work properly consult your installation or service dealer.