ZZ Refrigeracion is a free Android application developed by ZZ Ingenieros CA, designed for engineers and technical designers of refrigeration systems, cold rooms, and installation of relevant equipment. The app provides a comprehensive selection of filters, refrigerants, capillary tubes, and grids, as well as calculations associated with Cold Room Systems and Air Conditioning.

With ZZ Refrigeracion, users can easily calculate the required cooling load, choose the most suitable refrigerant, and select the right equipment for their project. The app also offers a range of other useful features, including the ability to calculate the size of the condenser and evaporator, as well as the length of the tubing required.

Overall, ZZ Refrigeracion is a powerful tool for refrigeration system designers, providing a wide range of features and calculations to help simplify the design process. The app is easy to navigate and its interface is user-friendly, making it accessible to both novice and experienced designers.