Click here to Find a Contractor in your area.
In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
Need to contact us? Visit

Adding a Taco SR501 to a existing SR503

frozen13frozen13 Posts: 5Member
edited May 2017 in Controls
Have an existing furnace with 3 current zones, two heat zones, and a DHW tank zone all controlled by a Taco SR-503 and Hydrostat Model 3150. I am adding a heating zone in my basement and have a Taco SR-501 I would like to wire in but not positive on how it should be wired into the existing system.


Sign In or Register to comment.


It looks like you're new here. If you want to get involved, click one of these buttons!