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Adding a Taco SR501 to a existing SR503

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frozen13
frozen13 Member Posts: 5
edited May 2017 in Thermostats and 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.

Comments

  • Ironman
    Ironman Member Posts: 7,824
    Here ya go:
    http://s3.supplyhouse.com/manuals/1351090952835/85160_PROD_FILE.pdf
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
    frozen13
  • frozen13
    frozen13 Member Posts: 5
    Ironman,

    I assume I wire it like the second page shows as a master and then move the DHW pump to the SR-501 and the SR-503 becomes a slave my 3 zones of heating? I have attached an image as a
    reference.
  • Ironman
    Ironman Member Posts: 7,824
    Do you have a cast iron boiler or a mod/con?
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
  • frozen13
    frozen13 Member Posts: 5
    It's a Buderus G115WS/4 which is cast iron.
  • Robert O'Brien
    Robert O'Brien Member Posts: 3,584
    What if anything is powered by C1 on Hydrostat?
    frozen13
  • frozen13
    frozen13 Member Posts: 5
    I will found out tonight, thank you.
  • frozen13
    frozen13 Member Posts: 5
    Nothing is connected to C1. I've attached some images also.

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