EPA Section 608 type 2

Front

What is the required evacuation level for an appliance containing more than 200 pounds of R-410A before making a major repair?

Back

10 inches of Hg vacuum.

Front

What should be done after reaching the required recovery vacuum on an appliance?

Back

Wait for at least a few minutes to see if the system pressure rises.

Front

What tool is used to pinpoint a leak once the general area is located?

Back

Leak detector solution.

Front

What category does a chiller that diverts 55% of its cooling capacity to manufacturing and 45% to air conditioning fall into?

Back

Industrial process refrigeration.

Front

How is a deep vacuum usually measured?

Back

Microns.

Front

What is the purpose of evacuating an appliance before repair?

Back

To remove refrigerant and prevent contamination.

Front

What is the significance of reaching a vacuum level of 10 inches of Hg?

Back

It ensures that the system is free of moisture and non-condensables.

Front

What is the function of a leak detector solution?

Back

To identify the presence of refrigerant leaks.

Front

What is the difference between psig and psia?

Back

Psig measures pressure relative to atmospheric pressure, while psia measures absolute pressure.

Front

What is the role of nitrogen in the recovery process?

Back

To break the vacuum and check for leaks.