Abstract: In a system for the production of cold comprising an absorption cooling system with an evaporator (1) from which coolant is supplied in the vapor state through an absorber (12) to a condenser (8), from which coolant is supplied in the liquid state to a coolant vessel (5) connected with the evaporator (1) the absorption cooling system is designed as a primary system operating periodically in a day and night cycle with the absorber (12) designed as a solar collector having a number of parallel absorber tubes (13) accommodating a humidity absorbing compound for the suction of coolant at night hours at a comparatively low temperature and delivery of coolant to the condenser (8) at day hours at a comparatively high temperature. The coolant transport to and from the absorber (12) takes place through a single tube connection (11).