Goodman Gas Furnace Sequence Of Operation

Heat call from the thermostat.

Goodman gas furnace sequence of operation.

The thermostat calls for heat by the home owner you turning the thermostat up. Gas furnace sequence of operation the thermostat reaches a set temperature and sends a signal for the furnace to turn on. Sequence of operation of this furnace is similar to most 80 furnaces made after 1990. The thermostat provides 24 volts to the w terminal on the control board.

Should overheating occur or the gas supply fail to shut off turn off the manual gas shutoff valve external to the furnace before turning off the electrical supply. Gas furnaces sequence of operation the standing pilot gas furnace the standing pilot gas furnace is the most basic of all modern gas furnaces. Such as unventilated garages utility rooms or parking areas because of carbon monoxide poisoning hazard b10259 216 special warning for installation of furnace or air handling units in. The gas valve will shut off and then either at the same time or a with a delay will shut off the inducer draft combustion blower motor.

The youtube video illustrates the sequence of operation on a bryant carrier 92 condensing furnace. They are being replaced with newer electronic ignition gas furnaces. At this point the indoor fan blower motor may continue to run to get all the heat it can or it might shut off after a short delay. The sequence of operation may vary depending on type or brand.

Sequence of operation this appliance communicates with room thermostat through the low voltage connections described in thermostat location and low voltage connections section of this manual. The inducer motor begins to spin and creates a vacuum to insure the left over gasses go out the exhaust pipe. It is the obligation of the installer to instruct the user how to use the room thermostat and what the normal sequence of operation is in both the heating and cooling modes. The standing pilot gas furnace remains in use.

But for the most part manufacturers have all gone to a hot surface or direct spark ignition the sequence of operation is as follows.