Problem: I am controlling my second smaller furnace from my larger main furnace. The Aprilaire humidifier (on main furnace) water coil and fan will not turn on when relay coil is wired into circuit as shown. However it does work when relay coil is removed from circuit.
source https://hvac-talk.com/vbb/showthread.php?2223557-Aprilaire-700-Not-Working-When-Relay-Coil-Wired-Into-Circuit-Schematic-Attached&goto=newpost
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