Air curtain controllers regulate the air velocity of the air curtain. Air curtains are often used to prevent air or contaminants from moving from one room to another. In winter, it can create a thermal barrier to keep warm air inside the building - for example, when the warehouse door opens to load a truck. In case of manual air curtain control, the air velocity can be adjusted via a switch or potentiometer. This can be done locally or remotely. For automatic air curtain control, an HVAC sensor is connected to the AC fan speed controller or EC fan of the air curtain.
Local air curtain control
The air velocity can be set manually via a knob or potentiometer on the front panel of the air curtain controller. These air curtain controllers have a built-in switch or potentiometer to adjust the air velocity.
The air velocity can be set manually via a separate potentiometer or control switch. This external potentiometer or switch can be installed nearby the air curtain or in a separate room. Via this potentiometer or switch, the requested air velocity is sent to the air curtain controller.
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