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help with 4 wire uponor actuator

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pooteo
pooteo Member Posts: 19
in Radiant Heating
a single zone taco switching relay with 4 wire uponor actuators. using the 2 wire thermostats as end switches.
i can't figure out how to connect this setup to the relay for the circulator pump.
Any help would be greatly appreciated. I've already burnt out one transformer hooking it up wrong.

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  • Zman
    Zman Member Posts: 7,569
    edited January 2017
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    You could take the 2 red wires and put them on R and W.
    If you need a call signal for the boiler "6N/O" and "5Com" would go to the "T-T" on the boiler.
    On the 120 volt side, the hot to the circ goes on "4N/O"

    Hopefully you did not smoke the switch in the actuator when you let the smoke out of the transformer.
    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein
  • hot_rod
    hot_rod Member Posts: 22,141
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    What you have is a switching relay. I think you want a zone control relay. How many actuators are you trying to power? Just one thermostat?

    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • pooteo
    pooteo Member Posts: 19
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    3 actuators, 3 thermostats
  • Zman
    Zman Member Posts: 7,569
    edited January 2017
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    OH, I thought you where just doing one.
    A zone control relay would be much better.
    It would work the way I described, just not very clean.
    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein
  • pooteo
    pooteo Member Posts: 19
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    Zman. You are correct it works like you described.

    Thank you everyone for your help.
  • hot_rod
    hot_rod Member Posts: 22,141
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    Here is what a zone control relay box looks like under the hood.

    Wire t stats to the top, 4 wire actuators to the bottom, transformer is in the control.


    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • pooteo
    pooteo Member Posts: 19
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    One more question if you guys don't mind.
    I have a Viridian Delta-T Variable Speed ECM High Efficiency Circulator and I've been using the delta-t mode. It runs at the lowest speed using 08 watts. With the temps between 110 and 130. Do I need a mixing valve on this line? I have one in place and it is set at 142 degrees. I'm not sure if I actually need it though if I'm using this pump.
    One of the thermostats for the wood floors is set to floor temperature. And the kitchen floor which is tile is set to room temperature.
  • Zman
    Zman Member Posts: 7,569
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    Would need much more info to answer that one.
    What boiler.
    How is tubing installed, concrete, staple up with plates?
    Pictures...
    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein

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