The TG version means a double refrigeration system. KW uses completely independent twin systems both for the electrical and fluid-dynamics circuits. Even KWs NEW ICE AGE CONTROL® systems are independent, yet connected to achieve an intelligent operation. They operate alternatively once the set point is reached. KWs solution has unique features regarding the quality, stability and uniformity of the temperature. Ventilated refrigeration with uniform temperature: this uniformity is guaranteed by the continuous operation of the vents, or of at least one vent during the defrost stage of the non-refrigerating group. The application of twin systems allows optimal stability of the internal T, as shown by tests carried out in our laboratories (both for positive and negative temperatures); below is an example: This means working with high-quality conservation T. And all this is possible with the use of two controllers KW NEW ICE AGE CONTROL® SPLIT.