Wiring Lionel 022 Switches

O22 switches should be wired in parallel.  The controllers do not need to be connected.  The auto derail feature will work without the controller.

I think the 022 will already be using the U common via track, so you'll have to use D (20v).  But I'm not 100% sure. inserting the plug may break both paths from track power to the linear (coil) motor. (I think it only breaks and replaces the hot side contact with one outside wire. )  If it does break and replace both connections, then you can use C-D for 14v....

Anti derail needs the common to work, so I'm pretty sure my guess of D-20v is correct.   (Four bridge rectifiers, or 16 rectifiing diodes would knock the 20v down to 14v (-1.5v each BR, .75v per diodes paired) I think 2a rating would be enough, 4a definitely big enough 

I don't think controls need to be hooked up on any switch at any time. Lionels work the anti-derail without them.  The control just introduces your input.

This is a good place for reference Olsens toy trains. If you need to navigate to switches etc. from their main page , look for "library", and then enter library (it's free, the price above entering button is just a reminder of their shipping price, not a price to visit the library)

The first listing under transformers, above the model number list, also says "transformers", click it. The last pic has the kw post combo voltages. (note: certain post combos are not protected by the breaker. List is either in that general paperwork "transformers" or (and?) in the KW paperwork (A-B is one, I think C-U is another (It is possible to use other combos than listed, if you know what your doing. Not worth the chase for most folk.

http://pictures.olsenstoy.com/searchcd31.htm?itm=630

Anyhow, 20v is likely WAY more than they need, but there are ways to step it down.   First thing, figure out what voltage operates your switches best. It might be 12v or 14v or 16v etc..

The best way might be another small 25w or 50w-90w watt to use with the KW. (Which one depends on your voltage answer   (you must also "phase" 2 transformers or voltage may double.. (easy peasy, I did it when I was in grade school;  watch: phasing two or transformers for use together, by Lionel, on YouTube). (Great video for learning /refreshing some base electrical theory in an easy to grasp way)

  I had the same problem/questions a while back, and it was explained that my KW is a bit of an “odd duck”

If I wanted to use A&B (U as common) terminals for trains, providing 6-20 variable volts, this only left 6 or 20 volts fixed (D&C) for lights & accessories - neither of which was very desirable for my use.  

  I tried A&B with C as the common, but 0-14 volts variable didn’t run the trains very well at all.  Plus this only gave 14v fixed,  which was ok for the O22’s, but other layout accessories needed different voltages.

 It was suggested here that I find an old 90watt 1033 transformer for lights & accessories, which I did on eBay for $11.  With terminal C as the common, the 1033 has A at 16v, and B at 11v.  My lights & some of the slower moving accessories like the 11v, and the switches & power hungry accessories love the fixed 16v.  Hope this helps.

Tom

As you have discovered, the KW is not friendly for fixed voltage applications. 6v or 20 are your choices, or for accessories that do not share common ground, there is a 14v option.

With the KW and 022 switches, the best option is to use A-U for running trains, and use B for the 022 fixed voltage plugs(daisy-chained) so you can fine tune the voltage for best switch operation.