Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
How do I wire a zone valve?
I'd like to add a third zone to my Oil/hot water furnace, but I'm not sure how to wire it. I have 1 taco zone for the finished basement already. Also, do I need 2 of those things you use when wiring up a door bell (not sure what they are called)?
2 Answers
- T CLv 71 decade agoFavorite Answer
The need for a transformer would depend on what kind of voltage your solenoid needs. If it’s 120 then no ….if it’s 24 volt then yes {voltage will be stamped on plate}. As for needing two …..I can’t answer that unless I know how you are hooking up your system…… but normally ….yes
- 5 years ago
The valve has a rubber ball that is moved to cover or uncover the outlet ports of the valve. The ball is moved by an electric motor depending on the command from the programmer and thermostats, the motor will stop with port A only open, ports A&B open or port B only open.
