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Control help

Need help wiring controls for this injection system taco ZVC404 zone valve controls with a tekmar 356 control for the injection pump 


  • hot_rod
    hot_rod Member Posts: 22,120
    Typically the TT from the relay box triggers on the tekmar. Although I think the tekmar needs a powered input, so send 24v over to it from the Taco box
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream