Circular Duct Electric Heater PTC PS

EKA … NV PTC electric duct heaters are designed to heat fresh air in ventilation systems and respond to airflow in the duct. The airflow through the heater cannot be less than 1.5 m/s. If there is airflow in the duct, the PTC sensor provides a signal that allows heating to start, depending on the heating value set on the heater. If there is no airflow inside the heater, heating is prevented (regardless of the heating requirement). EKA … NV PTC electric duct heaters include an integrated temperature controller with precise temperature control, operating with a power-on/pause algorithm. The controller regulates the load with triacs that have no moving parts, ensuring silent operation. A potentiometer is used to set the temperature. A manual thermal contact reset button and temperature setting are located on the device. A duct temperature sensor is included. The heater is powered from the mains, and a contactor activates heating via the differential pressure switch PS. The pressure switch PS operates when a pressure difference occurs in the duct.

All EKA … NV PTC / PS electric duct heaters have internal controllers with a default setpoint between -10 °C and +50 °C.