You can only use it for one fan speed, I set it for high. We never use the low speed fan anyway. I have seen people wire up a toggle switch and put in the case to get the two speed function but really didn't see a need. This one is a Honeywell Focus Pro 5000 PN# TH5110D1022. It only controls one AC and one Heater, I have two of them, one up front and the other in the bedroom like original.
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1998 American Dream Race Car Hauler
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