Difficulty finding a replacement On/Off - Hi/Med/Low/Off switch for a Trane unit

[dwkerux]

At our Court House we have several pneumatic 4-pipe Trane wall units. Some have an X13530073-07 (Landis & Gyr Powers 556-226) fan control switch in them. It is an Off, Hi, Med, Lo Switch. We are having a difficult time finding a replacement. We contacted our local Trane Parts Dept and they said it doesn't exist (it obviously does because we have some and I was able to find a used one listed on Ebay.) Yesterday I called another Trane Parts Dept and he said it was replaced with the KIT9182 and gave me a price of $. The gentlemen didn't seem real confident in this being the part, had no literature or pictures of the part. (The price seemed rather high to me for what it is, but if it is the correct part it is cheaper than other places I've found it on the internet.)

The Questions:
1) Does anyone know if this is correct?
2) Does anyone know of a cost effective replacement? Or a better route to take with these units.
3) Does anyone know of a way of looking up Trane parts based on the numbers on the parts themselves we haven't had much luck with that even when calling Trane.

Any helpful advice would be greatly appreciated.

Thanks,
Doug

[R123]

The replacement for X13530073-07 is KIT08156. Use KIT08159 if changeover switch is required.

[dwkerux]

Thank you R123. Is Trane the only place to get that?

[R123]

Don't know. I just crossed over the Trane part number.

[dwkerux]

Alright, I appreciate the information.

[dwkerux]

R123, it looks like the KIT9182 replaces the KIT08156.

Anyone have an idea where I can a spec sheet on either of these?

Thanks

[R123]

You are correct, KIT09182 replaces the KIT08156 and KIT09183 if changeover switch is required.

[R123]

Check your email.

[dwkerux]

Thank you.
I've ordered something that will hold us over, replacing the fan switch, until we can come up with the best approach to bringing these units up to date control wise. My thoughts are if we are going to have to spend X amount to fix one why not spend X+a to get them ready for the future since we will have this building for many years. Just need to figure out what that is.

[dwkerux]

Found a X13530074-02 online and used it. Only wired in the fan to it. Works fine.
Will still need to figure out a long range solution so if anyone has suggestions that would be appreciated.