HVAC Should Knows
This term refers to the process of removing heat from an indoor space.
Cooling
Which Heating method is most commonly used as a heat source in cold climates?
Natural Gas
The HVAC component that distributes conditioned air throughout a building.
Duct Work
What is the 4 main elements of a mechanical refrigeration system?
Compressor, Evaporator, Condenser and Expansion Device
Heatpumps use a (---------) to switch the refrigerant from heating to cooling.
Reversing Valve
Is a FLUE is located where?
On top of the Furnace
A leak in the vent pipe of a gas furnace is a concern because it can release what?
Carbon Monoxide
Heatpumps use (-------) as a backup heat source
Heat Strips (Electric Heat)
The HVAC system used for heating has a component that should be inspected for leaks and corrosion during maintenance.
Heat Exchanger
What do supply and return vents do?
the supply vent supplies air to the home and the return vent takes air from the home.
What does the Expansion device in a mechanical refrigeration system do?
Slows the flow of refrigerant and provides a pressure drop.
The measurement of heat energy in an HVAC context, often associated with cooling capacity.
What is a British Thermal Unit (BTU)
What layer in our atmosphere is most affected by venting or releasing refrigerant?
Ozone Layer
If refrigerant is removed from a system and held in a storage tank for return to the same system, it is said to have been: Reclaimed, Recycled, Recovered or Restored?
Recovered
The HVAC component that requires periodic replacement to maintain system efficiency.
Air Filter
If the system has an intermittent operation issue, check this component for possible faults.
Control Board
This HVAC component requires periodic inspection to ensure it is free from rust, corrosion, & Non-Condensable. If dirty, can restrict airflow.
Evaporator Coil
This component requires regular inspection to ensure it is free from debris and operating efficiently.
Blower Motor
A device that removes excess moisture from the air.
A Dehumidifier
The HVAC system is blowing hot air when it should be cooling. This could indicate an issue with this component.
Reversing Valve
What date was all R-22 banned from being sold in newer units?
January 1st 1996
The unit of measurement used to describe the airflow rate in an HVAC system.
Cubic Feet Per Minute (CFM)
A Hydronic system circulates what?
Hot Water
Phosgene gas can be produced when some refrigerants are exposed to what?
A Flame
At what temp does a heatpump no longer produce heat?
35