If a 30-pound cylinder of reclaimed R-410 refrigerant is stored overnight at 70°F, what is the expected pressure in the cylinder?

The expected pressure inside a cylinder of refrigerant, such as reclaimed R-410, is influenced by the temperature of the refrigerant. At a temperature of 70°F, R-410 refrigerant will exhibit certain pressure characteristics due to its thermodynamic properties.

R-410A refrigerant is known to exhibit a specific pressure at a known temperature, which can typically be referenced from refrigerant pressure-temperature charts. At 70°F, the pressure for R-410A typically registers around 200 to 210 psig. Therefore, the answer that aligns most closely with this data is 201 psig, reflecting the expected pressure at that temperature.

Using this understanding of thermodynamic properties, the answer choice indicating 201 psig accurately corresponds to the pressure you would anticipate in a 30-pound cylinder of reclaimed R-410 refrigerant at an ambient temperature of 70°F. This aligns with industry standards and the behavior of the refrigerant under these conditions.