Thermal control relay CONTROLVENT

single-phasethree-phasefor electric motors

Use : Controlvent relay units are NF certified and meet all statutory requirements for public buildings, high-rise buildings and car parks. They must always be linked to all ventilators used in building smoke control systems (drawing out/in of smoke/air) -> one unit per ventilator. A relay unit must be installed between a fire safety control panel and a smoke control ventilator to constantly handle faults which can limit the efficiency of smoke removal (voltage presence, phase inversion, air flow, etc.). Description : The unit handles all the following functions: remote reset following remote-controlled operation self-hold following order to move to the safety position built-in manual control (access level 0 or 1) safety position contact by smoke control speed monitoring of voltage in the control circuit and the power circuit and phase inversion control motor insulation monitor overload protection and phase symmetry controller in comfort mode choice of two modes of remote control: 24 or 48 V DC (polarity insensitive