Thermostat For Modulating Gas Furnace

In many cases the controls including the thermostat are proprietary.

Thermostat for modulating gas furnace.

Other gas furnaces such as the two stage gas furnace only offer two stages. You will need the manufacturer of the furnace to provide the thermostat. The gas valves of these furnaces open anywhere from 40 to 100 depending on the precise need for heat in the home. The modulating thermostat outputs a pulse width modulated signal on its v terminal that controls the gas valve on the furnace over a 40 100 power range.

More buying choices 7 51 28 used new offers. From top to bottom inside and out and every angle in between we ve thought of everything to bring you efficient and dependable indoor comfort. Get it as soon as fri sep 18. It is mainly designed as a gas furnace thermostat to control the gas furnace or ac.

4 5 out of 5 stars 931. Therefore for the modulating furnace to operate properly the controls need to be set up properly. Imho it seems that a better architecture would be to have the thermostat become a very simple device and locate the smart controls for modulation at the furnace air handler. This thermostat comes with a 5 2 programmable memory meaning you can program for 5 weekdays and 2 weekends separelty.

Emerson 1e78 140 non programmable heat only thermostat for single stage systems. However it is not compatible with multistage systems or electric baseboard heating systems. It s too bad that trane and other manufacturers it appears are going down the road of proprietary thermostats for their highest end modulating solutions. Enjoy savings through maximum efficiency.

Free shipping on your first order shipped by amazon. These have been available for a few years but now all of the major brands are making modulating furnaces. Typically this type of gas furnace such as bryant s evolution series combines a modulating gas valve with a variable speed blower the furnace then adjusts automatically between 35 and 100 of total capacity in small increments continuously regulating the amount of fuel burned according to the thermostat setting. According to the thermostat manual amplitude of this signal is about 10 vdc frequency is 1 hz and the pulse width is variable 350 to 950 milliseconds in steps of 50 msec.

With a modulating furnace the flame increases or decreases in smaller finer increments so that room temperature never varies more than 1 or 2 degrees from the thermostat s target temperature. Some of them adjust in increments as little as 5. It has an inbuilt schedule which you can use.