Test button assembly, mounts in the F50 F58 F300 door 203306AB and 203305AB. Also used in the F300E door 32007528-002 and 32007528-003. Note F300 models built 2000 through 2005 came with a plastic door. These plastic doors do not support a test button 32004876-003 and 32004876-004. Cell Repair Tech Note Power Supply Bench Test Here is our procedure to test the power supply. Warning high voltage shock can cause death. The power supply has the option to disable the air flow sensor (see bypass AFS section). The AFS can be temporary disabled for testing by borrowing jumper from J8 to connection J3 position marked "bypass AFS". This power supply does not require the air flow sensor to operate. The photo below shows an older power supply that just needs 120v to power a cell. Connect 120 vac to terminals P1 and P2. Check the following outputs with respect to chassis ground. Terminal P3 will output 8.2k vdc Terminal P4 will be 4.2k vdc Terminal for the neon lamp outputs 100 vdc

Since high voltage meters are not common, Honeywell provides the neon lamp as reliable voltage indicator. winix air purifier 9500If the high voltage output falls below spec the neon lamp voltage will drop out.karcher k2.420 air con cleaner Shorting P3 or P4 to ground has the same effect as the test button. austin air allergy machine hega jr. air purifierThe short will temporarily cause the neon indicator to go out. By tapping P4 to ground you should be able to draw an arc 1/32". Tapping P3 to ground can produce a larger arc near 3/16". These tests are with out the cells connected, the arc will be twice the length with cells connected. Spark Test Tech Note Air Flow Sensor Bypass If a cell is sparking, determine the sparking area and removed cell to inspect closer.

To see the sparking, you may need to look in through the blower compartment or cut an inspection hole in the duct. An inspection window can also be used to see if cells need to be cleaned. 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). Major cell sparking can be the result of power box wires getting crossed. The cell is powered by two voltages. The ionizing wires receive 8kv and the plates get 4kv. If these voltages get crossed, then the cell will spark all over and much louder than normal. 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. The 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.Page 1: Air Cleaners OWNER’S GUIDE F50F and F300E Electronic Air Cleaners Place bar code here 69-0756—05... F50F AND F300E ELECTRONIC AIR CLEANERS CONTENTS Operating Your Electronic Air Cleaner ......3 Getting the Most from Your Electronic Air Cleaner ........

4 Maintaining Electronic Prefilter(s), Cell(s) and Postfilter(s) ......6 How Electronic Air Cleaning Works ........ 11 Before You Call for Service ...... Page 3: Operating Your Electronic Air Cleaner OPERATING YOUR ELECTRONIC AIR CLEANER Turn the On-Off switch on the power box to On. NOTE:Set the switch to 1 for On and set the switch to O for Off. The air cleaner now operates whenever your furnace/air conditioning system fan operates. For maximum air cleaning... Page 4: Getting The Most From Your Electronic Air Cleaner Run the electronic air cleaner as much as possible For greatest efficiency, the air cleaner should run all the time. To do this, set the Fan switch on your thermostat to On, and make sure the air cleaner is turned on. The fan and air cleaner run even when the furnace or air conditioner is off. If you do not install a filter, you will probably need to wash the cell(s) and prefilter(s) more often to remove the mineral buildup. To ensure optimum performance from the air cleaner, the prefilter(s) and cell(s) must be cleaned regularly— twice a year with normal use or more frequently with heavy use.

Use the wash reminder schedule below to help establish and maintain a regular cleaning schedule. Page 7: Cleaning Your Cells 2. A full cleaning of the cells will return the air cleaner to its peak efficiency. An easy way to wash the cells is in a tub of hot, soapy water. Just soak the cells until the water cools, agitate and rinse. For details on cleaning cells, see below for Wash- ing the cell(s) in a tub or Washing the cell(s) in your automatic dishwasher. 1. Put the cell(s) on the lower rack of the dishwasher with the airflow arrow pointing up. It may be necessary to remove the upper rack. Do not block water flow to the upper arm. HINT: Lay a few large water glasses between the spikes on the lower rack, and rest the cell(s) on them so the spikes do not damage the aluminum collector blades. 4. Next, wash the prefilter(s) the same way. Empty and rinse the wash container. 5. Rinse the cell(s) with a hard spray of very hot water; rinse the tub clean, then fill the tub with clean hot water and soak for 5 to 15 minutes.

Rinse until the water draining from the cell(s) and prefilter(s) no longer feels slippery. 4. Firmly close the access door. 5. Turn on the air cleaner. If the cell(s) and prefilter(s) are wet, the neon light may not come on and you may hear arcing. If the arcing is annoying, simply turn the air cleaner off for two to three hours or until the cell(s) are dry. Page 11: How Electronic Air Cleaning Works But what is a ten-micron particle? The eye of an average size sewing needle is about 750 microns across, and the dot in the i in the word micron is about 400 microns. Generally, particles smaller than ten microns can be seen only with a microscope, except in very large concentrations, such as a puff of smoke. The electronic air cleaner collects these large particles plus many of the smaller, mostly invisible particles. Its purpose is to reduce indoor air pollution as well as to protect the blower, air conditioning coils and heat exchanger. About lint or “white dust" White dust is made up of particles that settle out of the air before they get to the return air duct.

You can help prevent this white dust from settling by running your fan constantly and: •... Page 14: Before You Call For Service Arcing (snapping) seems too frequent 1. If the electronic cell(s) are wet from washing, turn the air cleaner off for two to three hours. 2. Check the cell(s) for broken ionizer wires or bent plates. Page 15: Honeywell 10-year Ultraclean Coil Guarantee — 75% of the cost (up to $150) when installed with a Honeywell Coil Irradiation Ultraviolet Air Treatment System — 50% of the cost (up to $100) if a Honeywell EAC is installed without a Honeywell Coil Irradiation Ultraviolet Air Treatment System). Page 16: Limited Five-year Warranty Honeywell warrants this product to be free from defects in the workmanship or materials, under normal use and service, for a period of five (5) years from the date of purchase by the consumer. If, at any time during the warranty period, the product is defective or malfunctions, Honeywell shall repair or replace it (at Honeywell’s...

Page 17: Product Registration Graduate School____ Other_________________ 9. For your primary residence, do you: Own______ Rent_____ 10. Including yourself, what is the total number of people living in your household? (Ex. 01, 02, 03 ... xx):________________________ 11. Your marital status: Married____ Single____ 12. Which best describes your family income? Street Address______________________________________________________ City________________________________ State____________ Zip Code________ Phone: Day__________________________Evening__________________________ email________________________________________________________________ Date you moved in (for new home)______________________________________ Please check UltraClean Coil Guarantee™ or Clean Coil Guarantee™ (see program details for explanation): UltraClean Coil Guarantee™. Your heating/cooling contractor or builder___________________________________... F50F AND F300E ELECTRONIC AIR CLEANERS 69-0756—05...