The last series of machines designed and produced by Green Box offer two functions in one cabinet : the chiller function and the free-cooler function.
The main advantage of this type of machines is the extremely easy installation, exactly similar to a standard chiller:
in fact there is one inlet and one outlet for the water circuit and only one electrical connection.
A very important characteristic of this range is related to the fact that all the models are equipped with two rows of fans,
one of the rows is dedicated to the free-cooler and the other row is dedicated to the chiller.
This is the best way to grant high reliability to the system and easy cleaning of the finned coils both of the chiller and of the free-cooler.
The basic series, which includes 8 models with cooling capacity from 76 to 302 kW, is characterized by a reduced price .
The commutation from operating as a free-cooler to operating as a chiller (and viceversa) is fully automatic and it is operated by a Siemens 3-way valve,
controlled by a differential thermostat .