Cooling and temperature maintaining system for printing machine, has first compression refrigerator located in temperature maintaining circuit such that waste heat from same refrigerator is transferred to heating medium in circuit

摘要

A first compression refrigerator is located in temperature maintaining circuit as such that waste heat from same refrigerator is transferred to heating medium in the circuit. The circuit cools the heating medium with ambient air in a heat exchanger (12). A second compression refrigerator (34) is temporarily operable depending on outside temperature. Both refrigerators and circuit are located inside a structure (10), while the heat exchanger is outside the structure.