I was working on an industrial unit and the wiring was not connected properly.

I was connecting airlines that run to the thermostat.

Can you tell me how to properly connect airlines to a themostate?

Thanks

We don't have as good of people in HVAC as some other areas here. You may do better to do a web search as wait for an answer here. Sorry.

Labman is correct, no real HVAC pro here, but some very sharp, helpful people.

But what you are asking about seems to be a pneumatic temperature control device. A brand name and model number of the actual device would be helpful, along with an explanation of the wires involved.

I found a couple of sites that may help:

http://www.watsonmcdaniel.com/wmpdf/...ol-PTR&PTL.pdf

http://www.trane.com/Commercial/Equi...-SVX02B-EN.pdf

If you can find the device info on it, then as labman suggested, do a web search.