What is the required evacuation level when using a recovery unit on a system containing 100lbs of R-410A?

What is the required evacuation level when using a recovery unit on a system containing 100lbs of R-410A?

• A. 0 inches of mercury
• B. 5 inches of mercury
• C. 10 inches of mercury
• D. 15 inches of mercury

Answer: (A)

When using a recovery unit on a system containing refrigerant, the required evacuation level is measured in inches of mercury (inHg) and relates to the amount of refrigerant in the system. For systems containing R-410A, which is a high-pressure refrigerant, the standard required evacuation level is 0 inches of mercury. This indicates that the system must be evacuated to a perfect vacuum to ensure that all refrigerant has been removed from the system and that there is no remaining refrigerant gas or vapor. Evacuating to 0 inches of mercury confirms that the system is free of refrigerant, which is crucial for safe handling and environmental compliance. Additionally, achieving this level is particularly important with R-410A due to its potential impact on the environment if released. The adherence to this requirement is part of the best practices and regulations set forth by the Environmental Protection Agency (EPA) to minimize the risk of refrigerants contributing to ozone depletion or global warming. The other levels listed do not comply with EPA regulations for complete recovery of refrigerants. Evacuating to any level above 0 inches of mercury means that some refrigerant remains in the system, which is not acceptable for proper recovery and disposal efforts.

When using a recovery unit on a system containing refrigerant, the required evacuation level is measured in inches of mercury (inHg) and relates to the amount of refrigerant in the system. For systems containing R-410A, which is a high-pressure refrigerant, the standard required evacuation level is 0 inches of mercury. This indicates that the system must be evacuated to a perfect vacuum to ensure that all refrigerant has been removed from the system and that there is no remaining refrigerant gas or vapor.

Evacuating to 0 inches of mercury confirms that the system is free of refrigerant, which is crucial for safe handling and environmental compliance. Additionally, achieving this level is particularly important with R-410A due to its potential impact on the environment if released. The adherence to this requirement is part of the best practices and regulations set forth by the Environmental Protection Agency (EPA) to minimize the risk of refrigerants contributing to ozone depletion or global warming.

The other levels listed do not comply with EPA regulations for complete recovery of refrigerants. Evacuating to any level above 0 inches of mercury means that some refrigerant remains in the system, which is not acceptable for proper recovery and disposal efforts.