These are installed into the roof space using a fan mounting bracket and chain. These can be positioned so they blow into the extremities of the building to improve the total air movement around the store. These come as 510mm diameter, single phase or 3 phase and give an approximate air volume of 3000cfm at 1”wg. Electric roof fan heaters are also available if storing at higher temperature to reduce the likelihood of condensation.
Roof Fan – Technical Specification
18swg galvanised sheet steel
1/2″ x 1/2″ galvanised Twilweld with rolled zinc electro-plated edging
2 suspension hooks (incorporating carrying handle)Dimensions510mm (20″) diameter 620mm (24 1/2″) overall length
500mm diameter heavy duty plastic impeller
240v single phase. TEFC 180w/1.4a FLC 1425 rpm
External mounted terminal box with screw terminals
Manual fandangler to allow manual adjustment of blowing direction or motorised fandangler toprovide automatic 90 degree sweep of air direction
The manual bracket enables the fan to be turned and directed easily and quickly to ensure maximum efficiency in operation.
The fan is suspended by chains from a sturdy box section crossbar. Direction of ventilation is set by rotating the crossbar manually against a friction washer, which holds the fan in the desired position.