EFDR2 Multi-Input Fan Drive Controller

The EFDR2 multi-input fan drive controller provides precise, repeatable control of a TSxx-21 or TSxx-27 proportional fan control solenoid valve coil and one on/off solenoid valve coil. The controller accepts up to three thermistor inputs for fan control along with a single switch input for manual activation of the fan reversal function.Controller input signals can be from a resistive temperature sensor, or analog switch inputs. The EFDR2 setup parameters are confi gured using a PC, or the Application Configuration Programmer (ACP) serial interface, which allows for infrared programming and field adjustment of the controller. This multi-input fan drive controller is suitable for a wide range of heavy duty industrial, marine, and mobile off-highway equipment applications requiring proportional fan control.