What is not true about recycling and recovery equipment manufactured after November 15, 1993?

Recycling and recovery equipment manufactured after November 15, 1993, is subject to regulation that emphasizes environmental protection and efficiency in handling refrigerants. The assertion that these units must have an oil separator is not universally true. While having an oil separator can facilitate better management of oil in the refrigeration system, it is not a mandated requirement for all recycling and recovery equipment.

On the other hand, the other characteristics mentioned are established regulations. Equipment must undergo testing by an EPA-approved third party to ensure compliance with standards. Additionally, equipment must meet more stringent vacuum standards to enhance the efficiency of refrigerant recovery and minimize emissions. The inclusion of low loss fittings is also a requirement intended to reduce refrigerant loss during connections and disconnections, further contributing to environmental protection efforts.

In summary, while an oil separator can be beneficial and is included in many units, it is not a strict requirement for all recycling and recovery machines, making that statement not true in the context of the question.