Prepare for the HVAC EPA Type I Test. Study with flashcards and multiple choice questions, each with hints and explanations. Get ready to excel in your exam!

Multiple Choice

If nitrogen is used to pressurize or blow debris out of a system, what is allowed regarding the nitrogen?

Using nitrogen to purge or pressurize a system is an inert purge. Nitrogen is dry and non-reactive, so it doesn’t introduce contaminants into the air. Because of that, the gas can be vented to the atmosphere after the purge rather than captured, scrubbed, or stored. Just be sure the work area is safe for gas release—avoid creating an oxygen-deficient environment—and follow typical safety practices for handling pressurized gas.

Using nitrogen to purge or pressurize a system is an inert purge. Nitrogen is dry and non-reactive, so it doesn’t introduce contaminants into the air. Because of that, the gas can be vented to the atmosphere after the purge rather than captured, scrubbed, or stored. Just be sure the work area is safe for gas release—avoid creating an oxygen-deficient environment—and follow typical safety practices for handling pressurized gas.