Hoffman Controls 764-ECM 4 Speed EC Motor Controller

Product Overview

The 764-ECM 4 Speed Controller is designed to allow the replacement of a 24VAC operated discrete speed ECM fan motor with a speed (flow rate) adjustable ECM fan motor/controller combination. When used with a PWM capable ECM motor, the 764-ECM Controller will provide four discrete, user selectable 24VAC speed (flow rate) inputs. Each selectable input has a manually adjustable, proportional PWM speed (flow rate) setting to control the RPM of the ECM fan motor. Each of the manual adjustments has a range of 0% PWM (Off) to 100 % PWM (Full on). The controller also has an LED indicator lamp that dispalys the intensity of the selected PWM output signal. The 764-ECM 4 Speed Motor Controller works with all sizes and voltages of PWM input capable ECM fan motors. The 764-ECM Controller is line voltage independent and requires only a 24VAC input signal to operate. The 764-ECM 4 Speed Controllers come mounted in an easily installable track with screw driver adjustable speed (flow rate) potentiometers.