Carrier 321142-301 Combustion Air Disc

The Carrier 321142-301 is a combustion air disc part used in Carrier gas furnaces. It has a function in assuresing safe and effective burning. constructed from plastic mesh this disc is close to the burner assembly. Here it controls the flow of air into the burner but ensures only a limited amount of air gets into the mixing with the gas. This controlled mix is for First it avoids the large amounts of air which results in weak flames and incomplete combustion. Inefficient combustion loses fuel and may produce products such as carbon monoxide. Second, the combustion air disc assists in the prevention of a safe burn by preventing excessive air from getting to the gas.