Swiftair Temperature Hydroponics Fan Speed Controllers Silent Climate up to 950w (single socket-300w Max)

**NOTE** This is not a speed controller and will only set the trickle speed for the fan, Once the temperature goes above the level set it will then boost up to cool the room down. Once the boost has done its job and cooled the area down the unit will return to the trickle speed set on the controller. ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------The controller is equipped with an electronic temperature and speed control unit and automatically changes the speed (airflow rate) with respect to the temperature in the ventilation duct or in the premises. The front panel of the controller has the following controls and indicators: - Speed control knob for low speed setting - Temperature control knob for temperature setting - Thermostat operating indicator (LED light) - 3m long probe attached Set the desired air temperature (thermostat set point) by turning the thermostat control knob to the airflow rate desired by turning the speed control knob. If the air temperature increases above the thermostat set point the fan switches to the high speed (maximum airflow rate). If the temperature decreases below the thermostat set point the fan switches to the pre-set lower speed. To avoid frequent motor speed switches when the air temperature in the duct is equal to the set temperature point, the speed switch delay is activated. There are two switch delay patterns for various cases. The temperature sensor-based feedback delay: The motor switches to high speed as the air temperature exceeds 2 ° C above the set thermostat set point. The motor revers to the pre-set lower speed as the air temperature drops below the thermostat set point. This pattern is used to keep air temperature to within 2 ° C In this case the motor speed switches are rare.