F90A,B
9.Carefully wipe ionizer wires to remove any remaining residue.
10.Check the collection plates of the cell for any detergent residue. If any residue is remaining, repeat the rinse and detergent soaking process until collector plates are clean. Buildup can reduce the F90 efficiency.
Cleaning the Cell Using High Velocity Water Pressure or Low Pressure Steam
Alternate methods can be used to clean some contaminants from the F90 cell. To prevent damage to prefilter, do not use these methods to clean the prefilter. See Fig. 15.
Water
Steam
NOTE: Assure the steam pressure is less than 5 psi (35 kPa) and steam temperature is less than 250°F (121°C).
Discolored Aluminum
After cleaning, the cell and prefilter occasionally look stained. If the stain is black or very dark, it is probably dirt residue. This can lower the F90 efficiency. Clean and rinse the cell and prefilter again.
If the stain is white, it is detergent residue. This lowers the F90 efficiency and can corrode the aluminum. Rinse the cell and prefilter again.
If the stain is tan, yellow, or a thin film, it is probably tobacco smoke or other airborne dirt. Moderate discoloration does not affect the F90 efficiency. Recleaning is not necessary.
Removing Specific Contaminants from the Cell
The following list gives the appropriate cleaning procedure for types of contamination often found on cells and prefilters. Cleaning procedures are listed in order of preference. Be careful not to bend cell blades.
Reinstalling the Cell, Prefilter, and Activated Carbon Filter if Used
1.Wipe off surface dirt inside and outside of the grille and cover.
2.Replace the activated carbon filters with new filters if needs replacement. See Fig. 16.
3.Inspect the cells for broken ionizer wires and bent collector plates. Bend moderately bent or warped collector plates back into shape. Replace broken ionizer wires replaced for top efficiency as instructed on page 15.
Contaminant | Cleaning Procedure | |
|
| |
Animal Hair | Dishwasher Detergent Solution | |
|
| |
Carbon | Dishwasher Detergent Solution | |
(carbonblack, soot, lamp black, | ||
High Pressure Water* | ||
graphite, charcoal dust, etc.) | ||
| ||
|
| |
Cooking Oils | Dishwasher Detergent Solution | |
(vegetable, soybean, peanut, etc.) | Steam* | |
|
| |
Animal | Dishwasher Detergent Solution | |
(lard, butter, etc.) | ||
| ||
|
| |
Cotton Fibers | Dishwasher Detergent Solution | |
|
| |
Dust | Dishwasher Detergent Solution | |
(silicon dioxie, calcium carbonate, | ||
and mineral type compounds) |
| |
|
| |
Flour Dust | Dishwasher Detergent Solution | |
|
| |
Mineral Oil | Dishwasher Detergent Solution | |
(petroleum base, diesters and | ||
High Pressure Water* | ||
silicone) | ||
| ||
|
| |
Paper Products | Dishwasher Detergent Solution | |
|
| |
Paint | Dishwasher Detergent Solution | |
(Oil Base) | ||
| ||
|
| |
Water Base | Dishwasher Detergent Solution | |
|
| |
Pine Tar Resins | Dishwasher Detergent Solution | |
Steam* | ||
| ||
|
| |
Soaps | Dishwasher Detergent Solution | |
|
| |
Sodium Chloride | Dishwasher Detergent Solution | |
|
| |
Sugars | Dishwasher Detergent Solution | |
(includes molasses, etc.) | Steam* | |
|
| |
Talc | Dishwasher Detergent Solution | |
|
| |
Tobacco Tars and Smoke | Dishwasher Detergent Solution | |
|
| |
Varnishes | Dishwasher Detergent Solution | |
|
| |
Waxes | Dishwasher Detergent Solution | |
(all types) | Steam* | |
|
|
*Method not appropriate for cleaning prefilter.
4.Carefully wipe ionizer wires to remove any remaining water deposits.
5.Assure cells are completely dry before reinstalling in the air cleaner. If cells are placed into the F90 while still wet, the cells may short out and arc frequently. Although the F90 will appear to be operating, the cells may not be cleaning during the drying period.
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