Friend of mine has a 8870 Aprilaire Thermostat and trying to connect a remote temp sensor to it. It's reading 43C which I don't think it's possible. However, the remote sensor has a box that has some dip switches, not too sure how to set that up. The diagram isn't very useful what to flip to on/off.
Any suggestions how to make it work would be greatly appreciated.
Any suggestions how to make it work would be greatly appreciated.