White Rodgers SST2000 How The Air Cleaner Works, Construction Of The Air Cleaner, White Dust Lint

HOW THE AIR CLEANER WORKS

Dirt particles flowing through the ducts (Figure 1) first enters the pre-filters (A) where large particles (hair, lint, etc.) are trapped. Smaller particles (smoke, dust, pollen, etc.) pass through these pre-filters and enter the ionizing section (B). Here each tiny particle receives a positive electrical charge. These charged particles then enter the collecting section

(C). This section consists of a series of aluminum plates which are alternately charged negative and positive.

The positive charge of the particles cause them to be repelled by the positive plates and attracted to the negative plates where they are collected . . . just as a magnet attracts iron filings.

Clean-filtered air re-enters the supply duct system.

White Dust (Lint)

An Electronic Air Cleaner is designed to collect two major types of contaminants: ➀ Irritants (Pollens, Spores, Molds, Bacteria, etc.) and ➁ Black Soiling Contaminants (Dirt and Smoke particles).

The residue on the collecting plates of an electronic air cleaner is black, indicating it is removing dirt from the air stream. After installing an air cleaner you may notice white dust (typically, long linty particles or fibers – from carpets, cotton materials or drapery fabrics). This material is not collected by the air cleaner because it does not contain the irritants or soiling contaminants listed above or settles out of the air before reaching the air cleaner. The presence of white dust does not indicate an air cleaner requires service.

A B C

Dirty Air In Clean Air Out

Figure 1

Carbon (Charcoal) Filters

Odors are gas molecules, not particles. They cannot be removed by an Electronic Air Cleaner or by any other filtration media designed to remove airborne particles. However, some gases can be absorbed by an activated carbon filter or diluted with fresh outdoor air. When odors are present, the addition of charcoal filters will neutralize odors, such as cooking odors, pet odors, cigar and ciga- rette odors, ozone, etc. Optional charcoal filters are available for your Air Cleaner. Refer to the parts list for the charcoal filter part number for your Air Cleaner. Charcoal filters require replacement. They cannot be washed. While there is no rule of thumb for how often they should be changed, you can use your best judgement based on the odors you perceive in your environment.

CONSTRUCTION OF THE AIR CLEANER

Not only is your air cleaner easy to install, it is also easy to operate and maintain. Its basic components, and their functions, are as follows: (See Figure 2)

Cabinet - mounts to existing duct work and houses the collecting cells and pre-filters.

Collecting Cells - are made in two sections and perform the actual collecting of dust, dirt, and other impuri- ties from the air. They contain the ionizing and collection sections described above.

Cabinet	Pre-Filters
	Handle

Each cell must be installed with the ionizing wires on the air entering side. Each cell must be oriented with the handles and contact button (Figure 2) toward the operator.

Pre-filters- are in two sections which are interchangeable. They serve as a pre-filter to trap large particles such as hair and lint before they can enter the cell sections.

Power Pack- contains operating and power on lights as well as the solid state components that convert the 120 volt power supply to the high-voltage, direct current required for the collecting cell.

Contact

Button

Collecting Cells	Contact
	Button

Figure 2

Power Pack

3