The large knob is the switching (actuation) speed in mph. For example, if the unit is wired “normally closed,” the dial will indicate the wind speed that the unit will switch open. The small knob is the reset speed. This is the wind speed that the wind will have to slow down to in order to reset the switch (closed, in this example). The reset speed should always be set lower than the switching speed. If the reset speed is set the same or higher than switching speed, extreme switch chatter could occur (on-off on-off etc). The difference between the two settings will largely determine the cycling of the system being controlled. The larger the difference, the longer the cycle. Do not try to move the dial knobs counterclockwise past the lowest speed setting, nor go past the highest speed setting.
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