Twin extract fans for roof or duct fitting

TFD and TFR range: For toilet extract systems that require 100% standby in case of fan failure the twin fan range has been specifically developed with back draught dampers to prevent recirculation in the unit and an electronic changeover panel to monitor for signs of fan failure. This change over panel (accessory) has audible and visual alarm, duty sharing with a choice of change over periods up to 24 hours and monitoring the current or airflow using a separate sensor.

TFD and TFDA single phase in line twin fans with spigot connections for duct mounting sizes from 125 to 500 mm diameter. The TFDA model has acoustic lining for noise sensitive applications. Requires an auto change over panel ACSW 2. Ideal for commercial toilet extract.
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TFR and TFRA single phase roof mounted twin fans with spigot inlet connection for duct mounting sizes from 125 to 500 mm diameter. The TFRA model has acoustic lining for noise sensitive applications. Requires an auto change over panel ACSW 2. Ideal for roof mounting on flat roofs of commercial toilet extract systems. 
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