Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.
millvolt + 24v on same t-stat
John T_3
Member Posts: 34
I currently have my 750mv boiler and my 24v AC running on the same t-stat (honyewell VisionPro) The steam boiler is on R and W, and the AC is an Rc and the other correct terminals. The jumper is removed form R and Rh. All is working.
Question:
Can I cun the 24v common from my AC to the t-stat to power it? Or will this not work since the R is hooked up to the millivolt. Any thoughts? It works fine on the batteries, but would rather power it from the 24volt if possible.
Thanks!
Question:
Can I cun the 24v common from my AC to the t-stat to power it? Or will this not work since the R is hooked up to the millivolt. Any thoughts? It works fine on the batteries, but would rather power it from the 24volt if possible.
Thanks!
0
Comments
-
the rc and c terminal are used to power the thermostat. what you want to do is just fine and how that thermostat was intended to be wired0 -
thank you bill!0
This discussion has been closed.
Categories
- All Categories
- 86.2K THE MAIN WALL
- 3.1K A-C, Heat Pumps & Refrigeration
- 53 Biomass
- 422 Carbon Monoxide Awareness
- 90 Chimneys & Flues
- 2K Domestic Hot Water
- 5.4K Gas Heating
- 99 Geothermal
- 156 Indoor-Air Quality
- 3.4K Oil Heating
- 63 Pipe Deterioration
- 915 Plumbing
- 6K Radiant Heating
- 381 Solar
- 14.9K Strictly Steam
- 3.3K Thermostats and Controls
- 53 Water Quality
- 41 Industry Classes
- 47 Job Opportunities
- 17 Recall Announcements