Features

Cubic ventilation box with intake and extract spigots, with flexible connectors to reduce vibration transmission and variable applicable side panels to suit to structural conditions. Simple positioning by standard crane hooks. Self-supporting enclosure frame construction made of aluminium hollow sections. Double-walled, 20 mm thick side panels made of galvanised sheet steel, sound and heat insulated by lining with non-combustible mineral wool. The enclosure panels can be replaced as required with accessories such as weather louvres and condensate trays. Additional accessories, wall bracket and weather protection roof can be mounted inside and outside as required. High efficiency backward centrifugal impeller, manufactured from impact resistant polymers, mounted on galvanised steel support plates, direct driven. The impeller together with the external rotor motor is dynamically balanced to quality standard G 2.5 to DIN ISO 1940 T.1. Single phase, enclosed, maintenance free external rotor motor with thermal contacts wired to the terminal block, speed controllable by voltage reduction. Low-noise, sealed for life ball bearings. Mains supply via terminal box which is fitted externally on the motor as standard (IP 54).