• Tap doan Rosenberg
  • Box fans
  • Dong Co EC
  • Slide 01


Roof fans vertical outlet with IEC standard motor and integrated 50mm sound absorbing cover

Base frame with bolts for tightening of inlet accessories and rectangular inlet cone made from galvanized steel and additionally plastic coated. Rain cover with 50mm absorbing and square casing made from seawater resistant aluminium. Motor support made from welded and plastic coated rectangular tube as well as bird protection guards. Casing with integrated 50mm sound absorbing cover.

Fans are equipped with backward curved high efficiency impellers made from seawater resistant aluminium, mounted onto the IEC standard motor. At this stage roof ventilators IEC standard motors are used as standard in protection class IP 55. Isolation class F. Motor protection by PTC resistors.

Maintenance free ball bearings, closed on both sides, sealed for life. Easy access to the terminal box (not connected) in IP 54 under rain hood. Sizes 800 and 900 with backward curved high efficiency impeller, made from seawater resistant aluminium. Balanced on two levels according to quality level G 6.3 DIN/ISO 1940. Impeller in­stalled on motor shaft of an IEC standard motor, version B5. Motor in protection class IP 54, mounted under a removable hood component outside the air stream. Easy access to terminal box in protection class IP 55 after removal of the hood com­ponent.

Reference to Directives:
Declaration of incorporation and operating instruction are according to Machinery Directive 2006/42/EC, CE identification in accordance to EMC-Directive 2014/30/EU, Low Voltage Directive 2014/35/EU and the Ecodesign-Directive 2009/125/EC.


For further information, please click the model below for detail.

DVNS 800-6 D
DVNS 800-8 D
DVNS 900-6 D
DVNS 900-8 D

Picture of roof fans DVNS

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