BACK

#th / tr

Tech Tips:

TH, TR, and TH/TR Gas Valve Terminals
Have you ever noticed the TH/TR terminal on a gas valve? When I was in school, I’ll admit I didn’t know what it was. I’ve worked with people who are experienced and still think you need to use it. Nobody ever explained to me what it was. Being a newbie at the time, it never […]
Read more

Users with Tag #th / tr

To continue you need to agree to our terms.

The HVAC School site, podcast, and tech tips are
made possible by generous support from