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In the UMC regarding a room containing the refrigerant compressors for a large grocery store: 1. When the refrigerant quantities in a single system exceed the amounts in Table 11-1 for a single system, which would otherwise require a refrigeration machinery room, can the room be designed so that it is open to either the main floor or other areas that are large enough to meet the allowable quantities as shown in Table 11-1 to eliminate the need for the refrigeration machinery room? 2. Does footnote 7 of Table 11-1 indicate that this table, pounds per 1000 cubic feet of occupied space, is not applicable for determining when a refrigeration machinery room is necessary?