When the Cooling package (P2) is ordered pre-installed from factory, it holds the same features as the Additional feature package (P1), and also contains a cooling kit.<br /><br />The Cooling package allows your DXR to work continuously with full power in high ambient temperatures, enabling higher productivity in various applications such as cement kilns and steel factories.<br /><br />When the Cooling package is ordered as an after market accessory, it does not include the Additional feature package.<br /><br />Compatible with all DXR models in the 200- and 300-series.