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drain. Unit shall be insulated with high-density, foamed in place polyurethane insulation with a non-conductive top breaker strip. Opening shall have stainless steel lift-up and fold-down lids with black plastic recessed handles. Door lock is standard. Ends of the upperstructure shall have die-stamped louvers to allow proper air flow to the condensing unit. Refrigeration system shall use HFC-134a refrigerant. Refrigerant flow shall be controlled by an expansion valve. Cabinet shall maintain 3