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Gas code definitions Exam Questions With Answers 2025 New Update A+ Pass
Gas code definitions Exam Questions With Answers 2025 New Update A+ Pass 
 
 
Accessory - Answers - a part capable of performing an independent function and contributing to the operation of the appliance that it serves 
 
Air supply - Answers - (with respect to the installation of an appliance)- combustion air, excess air, flue gas dilution air, primary air, secondary air, and ventilation air. 
 
Combustion air - Answers - the air required for satisfactory combustion of gas, including excess air...