Furnaceman Technologies
(Prerequisites: Thermodynamics for HVAC, Electrical Theory & Troubleshooting Techniques)

Course Outline:

Modern Fuels
· Characteristics Of Fuel Gases
· Characteristics Of Fuel Oils
Gas & Oil Safety Controls
· Primary safety controls
· Fuel delivery system safety devices
· Electrical thermal disconnects
· High temperature ~ high pressure electrical controls
· Pressure relief devices
Combustion Process, Combustion Air, Products of Combustion, Venting Practices
· Contents of flue gases
· Providing combustion air
· Safe venting of fuel fired appliances
· Determining Firing Rates: Gas And Oil Fired Equipment
· Pressure & orifice relationships in gas burners
· Clocking a gas meter
· Pressure & nozzle relationships and determining firing rates
· Energy content of fuels
Combustion Testing and burner adjustments for efficiency
· Effects of nitrogen on efficiency
· Measuring CO2 and O2 in flue gas
· Adjusting excess air for maximum efficiency
Pictorial And Ladder Diagrams For Gas and Oil Fired Warm Air Furnaces
· Single speed and multi-speed blowers
· Air conditioning controls in a warm air furnace
· Gas furnaces with standing pilot, spark ignition, hot surface ignition
· Oil furnaces with stack and cad cell primary safety controls
· Controls associated with 90%+ furnaces with plastic venting systems
· Introduction to zoned systems
Pictorial And Ladder Diagrams For Gas and Oil Fired Hot Water Heating Systems
· Hot and cold standby control strategies
· Controlling circulators
· Multi-zone hot water heating systems with zone valves and multiple circulators
Outdoor Reset Controls
· Increased efficiency and decreased fuel usage with modulating boiler temperatures