Each casing provides spigots to suit standard circular ducting. The wrap around folded casing is specially manufactured using integral motormounting plates to provide additional rigidity for the casings. ![]() The robust 1.2mm galvanised mild steel sheet casing, is treated internally with a Class O rated (BS 476 Parts 6 and 7) fire resistant acoustic foam lining with a fire resistant polymeric coating. Reduced fan speeds can provide significant cost-savings through lower energy consumption in both mechanical energy of motors and also on the conditioning of replacement air.Īllowing control for auto changeover and duty share. Units can be weatherproofed in the factory to allow external installation.ĮC motors providing precise speed control via potentiometer, BMS or Elta Fans DCV control. High efficiency low tonal noise backward curved centrifugal impellers are directly driven by EC external rotor motors, provide low specific fan powers and stepless speed control without tonal noise generation. Integrated commissioning control allowing single speed selection and also limiting maximum speed if used with an external potentiometer. ![]() New Multi-mount brackets allow easy mounting in a range of orientations. Each unit is acoustically lined internally with Class O rated (BS 476 Parts 6 and 7) fire resistant acoustic foam lining minimising breakout noise levels.
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