Gas temperature and flow control system

A temperature control system for the contents of the compartments of a two-compartment tray which comprises, in combination:

• means for supporting said trays in a uniform vertical array;
• an enclosure for said array of trays;
• refrigeration means for cooling a flow of gas passing therethrough to present a flow of refrigerated gas;
• heating means for heating a flow of gas passing therethrough to present a flow of heated gas;
• a flow distributor, mounted in said enclosure, having a first inlet manifold and a first outlet manifold connected to said refrigeration means and a second inlet manifold and a second outlet manifold;
• a plurality of nozzles, in communication with said first and second inlet manifolds and said first and second outlet manifolds, for engagement with the compartments of said trays, said nozzles being positioned to allow one nozzle in communication with said first inlet manifold, and one nozzle in communication with said first outlet manifold to engage one compartment of each of said trays and one nozzle in communication with said second inlet manifold and one nozzle in communication with said second outlet manifold to engage the second compartment of each of said trays;
• and
• flow control means, connected to said flow distributor, for selectively connecting either said refrigeration means or said heating means to said