Goodman Gas Furnace Sequence Of Operation

Sequence of operation of this furnace is similar to most 80 furnaces made after 1990.

Goodman gas furnace sequence of operation.

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. 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. 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 inducer motor begins to spin and creates a vacuum to insure the left over gasses go out the exhaust pipe.

Gas furnaces sequence of operation the standing pilot gas furnace the standing pilot gas furnace is the most basic of all modern gas furnaces. On a call for heat thermostat closes a signal is sent to the ifc and sequencing begins. 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 sequence of operation may vary depending on type or brand. The standing pilot gas furnace remains in use. The proper sequence of operation is. The thermostat provides 24 volts to the w terminal on the control board.

Heat call from the thermostat. Control board does a safety check limit switches roll out switches. The youtube video illustrates the sequence of operation on a bryant carrier 92 condensing furnace. Gas furnace sequence of operation the thermostat reaches a set temperature and sends a signal for the furnace to turn on.

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