Vent Axia 7 inch T Series wall fan Performance Low: 335 m 3/h Medium: 435 m 3/h High: 530 m 3/h Behind the grille of the T-Series wall model is a high performance extract/intake ventilating unit designed to fit through most wall thicknesses using the telescopic liner (supplied). For walls of exceptional thickness additional liners can be used. Conduit entry is provided for concealed wiring. TX models are supplied complete with an integral instantaneous automatic louvre shutter which will operate on both intake & extract & at any angle of mounting. The shutter is electronically controlled by an actuator with a damped action giving quiet operation during instant opening & closing. The interlocking edges of the shutter blades provide maximum backdraught protection. When the ventilating unit is used with a T-Series 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, enclosed. Suitable for operation in ambient temperatures from -40C to +50C. This fan is fitted with self resetting Standard Thermal Overload Protection (S.T.O.P.). Supply voltage 220-240V/1/50 Hz (120V 1/60 Hz).