Correct answer
Refrigerated equipment with a non-mechanical cold source.
Refrigerated equipment with a non-mechanical cold source, such as ice or eutectic plates depending on design. Mechanically refrigerated equipment uses a refrigeration appliance such as compression or absorption equipment. Insulation remains necessary, but “insulated” alone does not specify the added cold source described.
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Refrigerated equipment with a non-mechanical cold source.
Insulated equipment without any cold source.
Mechanically refrigerated equipment with a compression unit.
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