CVHT/H-18/18 IP55 smoke extract fan

Cabinet

It is made of steel, galvanized sheet metal of sandwich design with aluminium corner beams. There are mounting feet at the bottom for attaching the fan to the floor or ceiling. Version with horizontal discharge CVHT-H or vertical discharge CVHT-V. The belt-driven motor is housed inside the enclosure and is standard on the right side of the enclosure when viewed from the discharge side, alternatively a motor can be supplied on the left (CVHT/H-TI or CVHT/V-TI). The fan is certified according to EN 12 101-3 as suitable for heat and smoke extraction.

Running wheel

is radial with forward curved blades. The impeller is statically and dynamically balanced.

Motor

is asynchronous three-phase 230/400 V or 400 V depending on the power output. Belt drive with automatic belt tensioning for maintenance free operation. Operating temperature up to 100 °C. Two-speed motors of 4/6 and 4/8 poles can be supplied on special order. Sealed ball bearings with grease packing for life. Protection class IP55, insulation class F.

Square box

It is located directly on the fan motor and is accessible by removing the side cover of the enclosure. The cable grommet is in the frame of the enclosure.

Mounting

in horizontal position, the displacement can be selected according to the enclosure design (see dimension sketches) horizontally or vertically.

Rotation direction

is indicated by an arrow stuck on the cabinet. The direction of rotation must be checked after commissioning, if the direction of rotation is reversed the order of the phases must be changed.

Noise

The acoustic pressure at a distance of 1.5 m on the suction side is shown in the graphs. The acoustic power is calculated from the value shown using the corrections in the table.

Accessories

All accessories for CVHT fire fans must be consulted with the technical department of ELEKTRODESIGN Fans Ltd.
- IAE flexible coupling
- CVHT-Mount discharge/suction neck
- CTI-CVHT canopy for outdoor mounting
- IBR free flange
- ISA spring-loaded angles for hanging on threaded rods (4 pcs)
- PM 55/6 inspection switch

Instructions

The fans are suitable for fire ventilation of assembly areas, large sales areas (supermarkets), collective garages, cinemas, sports halls, etc.

Highlights

Fans are supplied without flanges fitted. It is possible to order free IBR flanges with a width of 20 or 30 mm.