02-21-2010, 01:33 AM
Grateful11 wrote:
How can you set a furnace to cycle a certain number of times per hour? It should be coming
on when the temperature drops a certain amount to make it come on. Can you change the
temperature differential on the thermometer, in other words I have mine set to come when it
drops 1 degree below my set temp. and go off when goes 1 degree above the set temp. Mine
can be set to a differential as small as a 1/2 of one degree.
The thermostat has a setting for number of heating (and also cooling) cycler per hour. The default is 4. They recommend 2 for steam or gravity, 3 for high efficiency furnaces, and so on, all the way to 6 cycles per hour for electric systems.
I guess what this does is adjust the temperature differential so that the number of cycler per hour comes close to the set value. I think it takes a while for the thermostat to learn how fast the house heats up and how fast it cools down, and then adjust the T-min (when heat comes on) and T-max (when heat turns OFF). There is no temperature differential setting on this thermostat.
What model do you have?