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Danfoss Zone Control Panel

Alan (California Radiant) Forbes
Alan (California Radiant) Forbes Member Posts: 4,214
in THE MAIN WALL
This is an old installation; 6 years ago when Danfoss built pre-plumbed panels.  In this particular one, they used a Heat Timer DRC outdoor reset control that powered a Danfoss ABNV head on a mixing valve.  Unfortunately, this control does not work anymore (it does not send an "output" to open the valve) and Heat Timer no longer makes them and they don't make a replacement; best they have is a variable speed pump control, so I'd have to re-pipe it.



Anyone know of a control I can simply switch with the DRC? tekmar? Taco?
8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour

Two btu per sq ft for degree difference for a slab
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