HVAC DDC Alerton Damper Control ActuatorPrevious | Home | Next |
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This damper control actuator works off an analog output signal from an air handler ddc controller. It responds based on several variables including a mixed air temperature set point (because this actuator is on a mixing box). The motor is powered by 24 volts AC but a DDC signal from 0 volts DC to 10 volts DC causes it to move depending on the signal voltage from what the DDC program variables are calling for an output signal. The mixing box in HVAC applications mixes return air with outside air.