[bobfl]

Golfnut,

This is a little hard to explain so I'll try again. The thermostat and the Humidistat are wired in series. This means both switches must be closed to turn the air on. Kind of like the old Christmas tree light strings, one bad bulb and the whole string goes dead. Anyway, the thermostat by being set to 70 degrees will almost always be trying to turn the air on but since the signal must go through the humidistat it can't unless the humidistat sees over 60%. The bottom line is, the thermostat really is not in control at all, only the humidistat is. Therefore the temperature in the house may well go to 80 or 85 or more on hot days but air will only run if humidity climbs above 60%.

If however Humidistat and Thermostat are wired in parallel, then either on can turn the air on independent of each other. If that is the case they usually set temp to 80 degrees and humidistat to 60%. In this case max house temp will be 80 degrees and max humidity will be 60%

Hope this helps, even I'm getting confused!

Bob