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American Standard Hydro Air

Installing a American Standard Communicating Air Handler with external hydro heating coil.. To start the circulator off a Taco switching relay and not to have back feed on the air handler is there a control for this operation.  Two stage cooling and single heating 

Comments

  • Big Ed_4
    Big Ed_4 Member Posts: 1,778
    Relay

    Is the call for heat though a control board in the air handler ? I would check to see if it's a dry contact . I would assume it is but I dont have the paper work .If itis dry just go to TT in the circ relay . If not use a cheap RIB relay
    I have enough experience to know , that I dont know it all
  • Latent
    Latent Member Posts: 2
    American Standard

    Will a rib relay tw240 series with an current sensor around the w1 terminal work?
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