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Taco 4 zone circulator control

Tom Manton
Tom Manton Member Posts: 30
in THE MAIN WALL
I'm having an issue with my 4 zone circulator controler. The system is an atmospheric wood boiler primary loop  feeding a 40 plate heat exchanger with a single speed circulator. The secondary loop is running 2 Grundfos alphas through 5 grundfos zone valves, 4 radiant loops,and an indirect water heater.

I'm trying to trigger the primary circulator by switching zone 1 in the controler through the end switch position. On a call for heat everything switches as it should, the problem occurs when all zones are satisfied the secondary loop shuts down but the primary remains on. I have wired from the zone1 low volt supply to the end switch. If anyone can show me where I went wrong thanks in advance.

Comments

  • kcopp
    kcopp Member Posts: 4,501
    You need...

    a sep. sr 501 just for the primary loop. then all the others w/ a sep. controller. ...(i think) Do you have a drawing?
  • Tom Manton
    Tom Manton Member Posts: 30
    501

    Thanks, that's what I was thinking too. My system is set up like that,
  • Tim_D
    Tim_D Member Posts: 129
    Give Me A Call

    Hey Tom, Tim D. Here give me a call and we can work through it. 401-369-0646 is my cell or 401-942-8000 ext 396 is my office line.
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