WBZ Chillers

The WBZ is Galletti’s new range of non-reversible, water-cooled heat pumps designed for producing high-temperature water. This new booster pump from Galletti can operate with low- or medium-temperature sources. The WBZ can be installed either indoors or outdoors. The use of R1234ze refrigerant ensures full compliance with the stringent restrictions imposed by the latest F-Gas Regulation. In fact, with a GWP of just 1.37, this solution has one of the lowest global warming potentials currently available on the market, ensuring regulatory compliance even in the long term. > The range is characterised by high seasonal efficiency and reduced space requirements in order to facilitate access to technical compartments. Electronic expansion valves are fitted as standard. Both single-circuit and dual-circuit versions are available. The use of top-quality, state-of-the-art components in the cooling, hydraulic and electrical systems makes WBZ booster units cutting-edge in terms of efficiency, reliability and operating limits. The WBZ range is designed to produce high-temperature water (up to 90 °C) by evaporation using a medium-temperature heat source (typically 45 °C). This makes it ideal for use in conjunction with air-cooled heat pumps in a cascade configuration. Furthermore, thanks to its wide operating range on the source side, it can also operate at very low temperatures (down to 5 °C), independently providing the full thermal differential required by the system. The series' high degree of configurability, inherent in Galletti's DNA, is ensured by two different versions – one with closing panels and one without – and three different acoustic configurations: standard, low noise and super low noise, capable of reducing the sound power level by up to 6 dB(A). Lastly, the advanced microprocessor that controls the unit’s operation allows for the control of up to two utility-side pumps and two source-side pumps, either on/off or modulating, as well as the cascading connection of up to six units.