Vents KSD 250-4E, User Manual, Page: 3 / 24

The centrifugal electric fan VENTS KSD enclosed in a metal sound-insulated casing with
a double-inlet
Ø 180 to 320 mm impeller and forward curved blades, hereinafter the fan,
is designed for supply and exhaust ventilation of domestic, public and industrial premises
with high sound attenuation requirements.
The fan is designed for horizontal installation on an even surface or horizontal suspended
mounting and connection to
Ø 250 and 315 mm round air ducts.
Transported air must not contain any flammable or explosive mixtures, evaporation of
chemicals, sticky substances, fibrous materials, coarse dust, soot and oil particles or
environments favourable for the formation of hazardous substances (toxic substances,
dust, pathogenic germs).
The fan is rated for continuous operation.
The fan requires simple maintenance and is applicable for the transported air temperature
from -20 °C up to +45 °C.
Hazardous parts access and water ingress protection ratings is IP X4.
The delivery set includes:
- fan (1 item)
- user's manual
- packing box.
Specially ordered accessories NOT INCLUDED in the delivery set:
- a set of mounting brackets
- s set of suspension eye bolts
- air filters
- metal grilles
- air ducts
- fittings
- electric accessories
Fan name designation, fan options, functioning and connecting dimensions are stated
in the Tables 1, 2 and Fig. 1-6. The fan design undergoes continuous improvement.
Therefore, some models may slightly differ from the ones described herein.
3
PURPOSE
DELIVERY
SET
TECHNICAL
DATA
Prior to trial run and commissioning the fan make sure its air capacity and current
consumption match the respective technical data for a specified fan standard size.
The motor must be equipped with self-resettable overheating protection.
WARNING
KSD
!