Honeywell PS1201C02
Power Supply F50A F50E F52C F52D Single & Dual Cell 120v replaces
Price:$145.00
  12½ x 20 20 x 25

The PS1201C02 is used for the 120v single F52C or dual cell F52D. Ionizer current is set by jumper P5 for 1.05mA or 2.1mA. See Setting Ionizer Current below. This power supply is for F50 F52 models without the W8600F terminal strip. Honeywell 2 year warranty.

The circuit board has aan approximate size of 4½ x 6½ x 1¾ inches. This kit includes the power supply, various lead wires and terminals. Also included is the metal base.

240 Volts retrofit:
The PS1201C02 can be used on 240v air cleaner using a step down 240v to 120v tranfomer. See Honeywell 203365A conversion kit.

F52 Single Cell
F52 Dual Cell
12½ x 20 20 x 25
F52F1048 F52F1055
F52F1006 F52F1014
F52E1016 F52E1032
F52C1078 F52D1100

Setting Ionizer Current Jumper P5

The powerbox needs to be configured for the size of the air cleaner: 12½x20, 16x20, 16x25, 20x20, 20x25. A jumper on the power supply board needs to be set based on the overall size of your collector cells. This jumper (P5) sets the ionizer current. The J8 jumper drops the voltage from 8150v to 7500v for ozone reduction.

Size of Air Cleaner
P5
J8
12½ x 20
1.05 mA
8150
16 x 20
1.29 mA
8150
16 x 25
1.65 mA
8150
20 x 20
1.65 mA
8150
20 x 25
2.1 mA
8150
Setting Ionizer Current Jumper J6

ByPass Air Flow Sensor Feature

overwritting air flow sensor featureIf the air cleaner does not have an internal AFS (air flow sensor), then this feature needs to be bypassed. The power supply will not turn on unless the AFS is bypassed.

Connect the two pins together labeled 'bypass AFS" on J3 using a jumper; or to permanently bypass the AFS, cut the R16 resistor.

Power Supply Ground Choke Installation

The Honeywell power supply kit comes with an additional ground wire choke. Basicly the ground choke is connected in conjuction with your existing powercord ground wire and the metal chassis. This component is essential to protect the power supply. Earth/ground line choke eliminates ground loop frequencies. This prevents fault in your unit caused by ground conductor loops and power surge.
Honeywell Ground Choke Honeywell Ground choke installation

The PS1201C02 not Compatible with the W8600

The PS1201C02 power supply does not provide a connection for the W8600 remote indicator. The PS1201C02 is for a power box without the terminal strip as in photo below on left. If your power box has a terminal strip for the W8600, then this supply does not have the connection for that terminal strip.

If your powerbox has an unused terminal strip because you are not using the W8600, then you can use this power supply and internally not connect the unused terminal strip.

The PS1202C00 provides a connection for the W8600. Honeywell offers the option of replacing the complete powerbox PS1202B12J.

Photo shows power box with and without the terminal strip.Honeywell powerbox showing terminal strip for w8600E

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

Since high voltage meters are not common, Honeywell provides the neon lamp as reliable voltage indicator. If the high voltage output falls below spec the neon lamp voltage will drop out.

Shorting P3 or P4 to ground has the same effect as the test button. The 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.

Honeywell Power supply bench test procedure

Evolution of the F50 F300 Power Supply

The F50A was introduced in 1972 and has evolved in to the current F300. The same collector cells that were used in the F50A are still used in the F300. Thus variations of the current F300 power supply are used as the replacements for the prior F50 models.

In 1972 the F50A had an analog power supply as shown bottom-left. Then in 1987 the F50E was released, The F50E was the same as the F50A but with a new electronic power supply that offered two new optional features. The F50E offers an optional remote indicator and an air flow switch.

In 1993 the F50F was introduced with an all new chassis. The F50F now has all the electronics, from a 120v cord to the contacts for the cells built-in to the power box. Now a simple power box swap was a sure fix.

In 1998 the F50F Series 2 was released with a new optional LCD remote indicator that replaced the prior LED indicator. Also the internal power box wiring was improved with molex plug connectors. The connectors simplified manufacturing and power box repairs.

In 2000 the F300 was introduced that was identical to the F50F but the paint color was changed to blue. The F300 now has post filters that will also slide in to the F50F.

In 2012 Honeywell radically redesigned their power supply. They are very flexible and universal for multiple applications. Also, they seem to have better power surge protection along with ground loop frequency insolator.The new power supply design have the series one LED + AFS connection as well as the series two connections.
Evolution of the Honeywell F50 and F300 power supply

240 Volt Power Supply

Honeywell has discontinued the 240 volt replacement power supply.

The power supply can be retrofit with a drop down 240v to 120v tranformer. The honeywell 203365A converstion kit can be used when the power supplied is 240v.

Warranty on Replacement Parts

Honeywell Two Year Warranty for Replacement PartsThe Honeywell warranty for Replacement Parts is 2 years from the date of purchase. Our customers simply need to ship us the defective part. We test and confirm defective. We then ship back a brand new part at no charge.

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