Gas Furnace Ignition Control Operation | HVAC Heating
Electronic Control Board for an Electronic Ignition Gas Furnace
Gas Furnace Ignition Control Operation | HVAC Heating. This furnace control board controls much of the functions of this gas furnace with few exceptions. The main control comes from the thermostat and once the thermostat tells the gas furnace control board it is time for the heat to come on the gas furnace control board takes over from there except when the thermostat is satisfied the system shuts down.
On a call for heat from the thermostat the gas furnace control board starts its sequence of operation. This article relates to the sequence of operations for electronic ignition gas furnaces. Some furnaces will vary in their sequence of operation from what is written here. However, most electronic ignition gas furnaces use this sequence of operations. For the sequence of operation for a standing pilot gas furnace see this article.
