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Efficient and technologically advanced, the Booster unit takes advantage of proven heat recovery technology to provide hot water for sanitary use and is one of the most advanced, efficient hot water systems available today.

Benefiting from the heat recovery operation of the City Multi R2/WR2 system, the Hydra-Dan Booster unit converts energy collected from the air in cooling zones to higher temperatures suitable for heating water and results in virtually no energy waste.

Capable of air conditioning and supplying hot water from a single system, City Multi and the Hydra-Dan Booster Unit is ideal for use in a variety of applications. From hotels and restaurants to gyms, it works perfectly in providing optimum air environments and sanitary hot water to a maximum of 71°C.

Download the Booster Unit Model Specifications here


Both the Booster and HEX Units can be monitored and operated through our advanced PAR-W21MAA Controller, giving you superb flexibility and convenience at your fingertips.

For complete details on City Multi Hydra-Dan, including installation, full specifications and controller information, download the full brochure here.