The 600-DCT2- 12/24 control system is designed to automatically control engine room ventilation via a two-temperature set- ting, while still having the convenience of manual low and high-speed control.In addition to two voltage options, the new 600-DCT2-12/24 also provides adjustable temperature settings, with two adjustable set points for making easy on-the-fly adjustments for different climates. The systems new design allows for not only a reduction in noise levels, but also reduces the current draw by up to 25%.