Figure 7. Operative temperatures and PWM when cooling tower deadband interval is 2 °C

From

PWM Control of a Cooling Tower in a Thermally Homeostatic Building

Peizheng Ma, Lin-Shu Wang, Nianhua Guo

American Journal of Mechanical Engineering. 2015, 3(5), 142-146 doi:10.12691/ajme-3-5-1