DIFFERENTIAL PRESSURE SWITCH PRESSURE SWITCH

Pressure differential switch provides so-called "peak information" to the ventilation unit (VU) when the range hood starts, allowing the VU to reduce the output power of its exhaust motor. Otherwise, simultaneously operating the range hood and ventilation unit would expel too much air from the building, creating excessive negative pressure. In a range hood equipped with its own motor, the pressure differential switch sensor is installed in the exhaust duct between the motor and the backdraft damper. In the top extractor shown, the pressure differential switch sensor is installed in the duct between the backdraft damper and the top extractor. The pressure differential switch can be connected to all LAPETEK fans. Support for peak information by the VU must be verified with the VU manufacturer. This product description is an automated translation of the original Finnish description.