|List Price||BGN 429.00 VAT Incl.||BGN 407.55 VAT Incl.|
Centrifugal fan, model V-4E-300QD with supply voltage 220 VAC, rated power 1250 W and flow rate 3200 m3/h. The flow rate of the blower may be adjusted from 0 to a maximum value with a suitable electronic controller.
The fans are designed to operate in normal climatic conditions, with ambient temperatures ranging from -5 ° C to +60 ° C and 30 ° C relative humidity from 40% to 85% above sea level 1000m. The degree of protection is IP 44, which does not allow the fan to operate at higher humidity and aggressive environments, both indoors and in confined spaces, and in unsuitable atmospheric conditions.
The fan is not allowed to operate under vacuum conditions (for example, the blower can take air out of a room that can not get enough air otherwise). This will result in insufficient airflow to cool the motor and the fan will be damaged.
It is possible to adjust the fan speed by means of a frequency inverter or by phase adjustment with a reduction of the speed up to 50%. The fan can not be powered by a DC / AC inverter with a modified sinewave - this will cause it to malfunction.