Honeywell 616-213-00
Honeywell Collector Cell for Friedrich C-90 Series FC37A1130
Price:$191.00

Replacement collector cell 616-213-00 for the C-90, C-90A, C-90B. Assembled with ionizing wires and ready to slide in and use. Nine (9) tungsten wires are used in this cell.

The cell measures 16 x 12½ x 4½".

The cell is powered by 2 voltages and uses the chassis for ground. The ionizing wires are energized with 8200 vdc and charge the particles. Air flow then moves the particles through the collector plates. The particles are then pulled to the grounded plates. Note half the plates are grounded, every other plate is energized at 4200 vdc. The energized plates push the particles to the grounded plates. Creating push-pull electro-static precipitation.

The Friedrich cells (616-213-00) are manufactured by Honeywell. The Honeywell/Friedrich cells are stamped a Product of Mexico. The cells do not wear out and can run for decades.

The C90 series cell can be identified by the part number FC37A1130 stamped in to the aluminum. The text Honeywell Residential is stamped in the end facing out.

616-213-00 has FC37A1130 Stamped in to the aluminum

Collector Cell Washing

collector cell dirt on platesWe recommend soaking the collector cells. Soaking cleans better than the dishwasher and cleans better than a pressure washer. The cells typically do not need to be cleaned as often as the prefilters.

After cleaning, inspect the cell plates for dirt, hold the cell up to light. View the plates through the ionizing section to see the dirtiest side. Note that only every other plate captures dirt.

The plates are either charged or grounded. The charged particles are attracted to the grounded plates and repelled by the charged plates. Closely check the grounded plates, where as the charged plates will clean easily.

Cleaning Ionizing Wires

Deposits of solid silicon dioxide Honeywell recommends wiping down the ionizing wires when washing the collector cells. Also check the wires for roughness, a side effect of the corona discharge is the growth of a white quartz layer.

Air near the high-voltage ionizer wires breaks down in to ions and high energy electrons. This mixture of ions and electrons is called the corona plasma. The ions collide with suspended particulate and confer the charge.

The plasma has an unintended reaction with cyclomethicone, a silicone oil present in household products such as deodorant sprays and skin lotions. This reaction leaves deposits of solid silicon dioxide on the ionizing wires. These insulating formations will significantly suppress the corona pattern and intensity.

Research has shown cleaning the wires with 600 grit emery cloth will remove the silicon dioxide. But at the risk of damaging the wire surface or breaking the wire.

Fixing Cell Arcing

Fixing C-90 Cell ArchingIf the cell (616-213-00) is sparking, determine the sparking area and removed cell to inspect closer. To see the sparking, you can remove the prefilter.

If necessary you can try viewing the sparking by removing the top cover and manually pressing the interlock switch. With lid off, caution the cell is live at 4200-8200 volts. Inspect the sparking area for bent plates or plates to close. The plates should be evenly spaced.

A cell that is sparking randomly throughout is uncommon but could be caused by a film left behind from washing. If tobacco is not cleaned from a cell it can build up and cause random sparking. Diesel fumes can cause problems and are not easily cleaned. High altitude can make the air cleaner more susceptible to sparking. The collector plates should be cleaned to the bare shiny metal (stained is okay).

If a cell is shorted and keeps the neon lamp from coming on, then inspect for damage. The most common short is from the aluminum dividers in between the ionizing wires. These dividers can get pushed in to the collector plates, they should not touch the plates. A dent across several plates causing them to touch would be a simple short to find. A dandling ionizing wire can cause a short.

determining cell sparking area

Continuous Cell Arcing

continuous arcing by tabs contact with edge of every other platesThe 4074EHG tabs make contact with the edge of every other cell plate. Photo right shows the edges of the plates burnt down far enough, that the contact shorts against every plate and not every other.

Honeywell cells can last for decades, but continuous sparking can cause damage. A cell may spark continuous if collector plate spacing gets too close. The spacing can become uneven when a cell gets pushed out of square, twisted, a dent, etc.

One common problem is a loose plate that has lost the press fit with its horizontal rods. The loose plate likely had continuous sparking that created surges of current through the press fit. The current surges resulted in sparks that brunt away the press fit. This cell would not be repairable.

When one cell has been subject to excessive sparking, then both cells will be burnt under the contact pad. This is because a spark in one cell will cause a current surge that is drawn from both cells.

Check the contact pad to determine the condition of the cell. If your cells have badly burnt contacts as in the photo above, then it is best to replace the cells.

When a cell has been subjected to excessive sparking, the press fit of all the plates will first be weakened. The sparking at these connections causes corrosion from ozone. The aluminum around the press fit becomes corroded and no longer conducts as well.

The cell contacts operate at high voltage and are not a sensitive connection. The contact does not require cleaning. The contact is tin coated copper. Sandpaper will remove the tin coating.

The photo below shows arcing under the contact pad.

Cell Contains 3 Contacts but Only 2 Used

You may have noticed there are 3 contacts on the cell pad but only two contacts at the power box. This allows the F50-F300 to be installed with either right or left air flow. The cell can be rotated allowing an installation with opposite air flow.

Only two contacts are used, the center contact and one end contact. Photo animation shows when the cell is rotated, the contacts maintain the correct connections.

The center contact powers the ionizing wires. The two outside contacts are connected and power the collector plates.

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