I am not sure if you have had the help you needed on this, but there is an eQUEST 3.61 Refrigeration version available for download at DOE2.com. This version is fully capable to model walk-in coolers, freezers, and refrigerated cases (ie: grocery store applications). Energy is reported for the standard end-uses for HVAC and lighting, with the addition of "Refrig Display" (compressors, cases, etc) and "Heat Reject" (condensers).
Christopher Rogers