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Thread: aprilaire revisited
02-18-2005, 09:35 AM #1
i have a problem with the 8570 stat. when the dip switches are configured for h/p operation, y is not energized in heat, only w2... changed stat, same thing. you guys ever see this before?
In the land of the blind the one eyed man is King! semper fi
02-18-2005, 10:40 PM #2Professional Member
- Join Date
- Jan 2003
- Kansas City
I am not familiar with this thermostat, but some multi-use thermostats require a y1 to w1 jumper for heat pump operation.