question # 20\na high - pressure appliance containing 210 lbs. of r - 407c refrigerant must be evacuated…

question # 20\na high - pressure appliance containing 210 lbs. of r - 407c refrigerant must be evacuated (recovered) to a level of;\na 15 inches of vacuum\nb 10 inches of vacuum\nc 4 inches of vacuum\nd 0 inches of vacuum

question # 20\na high - pressure appliance containing 210 lbs. of r - 407c refrigerant must be evacuated (recovered) to a level of;\na 15 inches of vacuum\nb 10 inches of vacuum\nc 4 inches of vacuum\nd 0 inches of vacuum

Answer

Brief Explanations:

High - pressure appliances with refrigerants must be evacuated to 15 inches of vacuum for proper recovery. This is a standard requirement in refrigerant handling to ensure complete removal of air and non - condensable gases.

Answer:

A. 15 inches of vacuum