The Vent-Axia TX7WW Window Fan 220-240V the UK’s No. 1 commercial fan is fitted with a Vent-Axia M-Tech motor, developed to improve performance, lower running costs and maintain the T-Series’ rugged reliability. A patented speed control pack is simply plugged in one of 3 positions to provide low, medium or boost speed matching the fan performance to the requirements of the installation.   With energy saving in mind T-Series Fitting Kits are supplied complete with an integral instantaneous automatic louvre shutter concealed behind the interior grille. It operates on both extract and intake and at any angle of mounting. When the fan is used with a T-Series or Ecotronic controller, the shutter can be set open with the fan motor switched off to provide natural ventilation without the security risk of an open window.   Motor purpose-designed. Suitable for running at any angle. Quiet running. Suitable for operation in ambient temperatures from -40°C to +50°C. Fitted with Standard Thermal Overload Protection (S.T.O.P.). Supply voltage 220-240V/1/50Hz.   Window Kit - designed for use in single or double glazing, most types of glass and materials up to 32mm thick. Greater thicknesses can be accommodated using Extended Fixing Rod Sets. Can also be mounted in a fixing plate or wall, in ducts or above ceilings.