Abstract: Apparatus for preparation of process water for presses, such as printing presses, or the like, including conditioning apparatus for conditioning the process water and cooling apparatus for cooling the process water, comprise a housing (1) which is spatially divided into upper and lower housing spaces (A, B), with the conditioning apparatus (2, 3, 4, 8, 13, 22-24) arranged in the lower housing space (B) and the cooling apparatus (9, 10) and a fan arrangement (11, 12) to produce a substantially upwardly directed exhaust stream of cooling air out of the housing arranged in the upper housing space (A). The cooling apparatus includes a refrigeration condenser arranged close to a cooling-air exhaust opening (12) at an upper side of the housing (1) so that the refrigeration condenser is subjected to cool air before it exits into a surrounding space.