Recovery devices that were manufactured before November 15, 1993 and are used for recovery of refrigerant from small appliances must be capable of:

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Multiple Choice

Recovery devices that were manufactured before November 15, 1993 and are used for recovery of refrigerant from small appliances must be capable of:

Older small-appliance recovery devices had a performance baseline set by ARI 740-1993. They were required to be able to recover at least 80% of the refrigerant from a small appliance, whether the appliance’s compressor is operating or not, or to achieve a 4-inch vacuum under the ARI 740-1993 test conditions. This means the device should either pull out most of the refrigerant during normal operation, or demonstrate sufficient suction to remove refrigerant even if the compressor isn’t running, which is shown by reaching the 4-inch vacuum. The goal is to ensure a substantial amount of refrigerant is recovered despite the device’s limitations at that time. The other percentages (50%, 90%, 100%) aren’t the standards for devices manufactured before that date.

Older small-appliance recovery devices had a performance baseline set by ARI 740-1993. They were required to be able to recover at least 80% of the refrigerant from a small appliance, whether the appliance’s compressor is operating or not, or to achieve a 4-inch vacuum under the ARI 740-1993 test conditions. This means the device should either pull out most of the refrigerant during normal operation, or demonstrate sufficient suction to remove refrigerant even if the compressor isn’t running, which is shown by reaching the 4-inch vacuum. The goal is to ensure a substantial amount of refrigerant is recovered despite the device’s limitations at that time. The other percentages (50%, 90%, 100%) aren’t the standards for devices manufactured before that date.

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