The device on your Thermostat called the "heat anticipator"
is a small electric heater that uses the current of the gas valve or oil
burner primary to cause the thermostat to dropout the heat before the room
temperature overshoots. The reason for this is that furnaces are usually
sized larger than they need to be.
Usually it is set to the current draw
on the gas valve. The way to find out what this current is is to look at
the gas valve or oil burner primary. If you cant find the amp rating then
you can take a clamp-on ammeter with ten turns of wire around it and measure
the current. Keep in mind that the setting can be changed depending on
the size of your furnace in relation to the size of your house.
If it has been moved to a lower number
that would cause the burner to short cycle a larger number will make it
run longer. The way to know is to remove the cover on the thermostat and
watch the mercury bulb to see if it is falling to the off position. If
it is not check to see if the limit is opening. Scott 240-460-3820
If your heat pump forms
ice outside in the heat mode click
If your air conditioner or heat pump ices
in the cooling mode click
If you have
water leaking problems with your air conditioner
click here to solve it.
To ask us about other heat pump problems click
here. To ask us other heating system problems click
Any other questions feel free to contact us by
any of the means below. good luck Scott.
Written By: Scott
Meenen N3SJH of: G&S MECHANICAL SERVICES. Specializing in Mechanical, Controls
and Electrical Modifications Of
Heating, Air-conditioning, Refrigeration,
Ice Production and Food preservation.
Anything having to do with Heat and Energy.
Serving MD, DC, and Northern
VA. Contact us by pager: 1-877-467-2914