Ventilation and air-conditioning units in SE version (Radial roof type smoke exhaust fans) of ROOF type

Roof radial fans are used in stationary systems of exhaust ventilation of residential, public and industrial (industrial) premises with a network of ducts and without it.
They are intended for operation in conditions of moderate (U) climate of 1 category of accommodation according to GOST 15150-69 (motor A) in the presence of options for protection against precipitation, in conditions of moderate-cold (UHL) climate of 2 category of accommodation (motor S) and are installed on the roof. Radial roof fans radial exhaust smoke ventilation (DU, DUV) are designed for removal of high-temperature smoke-air mixtures arising at fire and simultaneous heat removal outside the serviced premises.