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DH fans

DV... / DH... - Roof fans vertical or horizontal outlet
 
·    easy to install
·    weatherproof housing
·    Motor protection by thermal contacts
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 Features and Constructions:

 The  Rosenberg  roof  fans  are  used  for  ventilation  of  department  stores,  supermarkets,   factories,  swimming pools,  kitchens,  dining halls,  warehouses,  garages,  farms and stables.  The  fans  are  suitable  for  mounting on  a flat or any shaped roofs. The broad roof-fan product rangeoffers for each application the optimal solution.

 Application areas:
 Garage  / Offices  / Bars  / Greenhouses  / Skyscrapers  / Hotels / Industrial buildings /  Basement rooms /  Playschool / Cinemas /  Parking facilities /  Warehouses /   Nursing homes /  Schools  / Sports halls /  Supermarkets /  Workshops / Residential houses / Fitness centers / Inflatables

 We distinguish between...
  ... Type DH with horizontal outlet     = for less polluted air
  ... Type DV with vertical outlet         = for heavily contaminated air

 Classification of the fan series:
 NRVU    = Non Residential Ventilation Units
  UVU    = Unidirectional Ventilation Units

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

 Vertical type DV:
 Casing  made  of  seawater-resistant  aluminium  Base  frame with bolts for tightening of inlet accessories and rectangular inlet cone made from galvanized steel; from size 560 to 900 additionally plastic coated.
 
 Horizontal type DH:
 Cover  up  to  size  500 made of seawater-resistant aluminium, from size 560 made of galvanized sheet steel.

 Base  frame  with  bolts for tightening of inlet accessories and rectangular inlet cone made of  galvanized sheet steel; from size 560 to 900 additionally plastic coated.

  Coating:
  Standard Coating RAL 7030 / RAL 7035 or other coating  posible on request against extra charge.

  Bird Protection Grill:
  A coated grill RAL 9005 (black), ensures an optimal protection. Inlet grill possible on request.
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 Impellers:

 Up to size 400:
 Backward curved  impellers made of plastic. Impellers are mounted directly to the rotor of the external rotor  motor and are balanced  dynamically  at  two levels together with the rotor according to quality level G 6.3 to DIN 1940.

 From size 450 to  800K:
 Backward curved impellers made of  aluminium.  Impellers  are  mounted  directly  to  the rotor of the external  rotor  motor and are balanced dynamically at two levels together with the rotor according to quality level G 6.3 to DIN 1940.
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 Motors:

 Used  are  external rotor motors with IP 44/54 according to DIN EN 60034-5 with moisture protection, ball bearing mounted and with thermal contacts as motor protection.

 Up to size 310L:
 Motor protection class IP 44.

From DH 190-2 E.3BE to DH 400-6 E

Roof fans horizontal outlet

Base frame with bolts for tightening of inlet accessories and rectangular inlet cone made of galvanized steel. Rain hood made from seawater resistant aluminium. Motor supporting plate with integrated protection guard made from plastic coated round bar steel.

Fans are equipped with backward curved high efficiency plastic impellers up to size 450, from size 450 W made from seawater resistant aluminium, mounted onto the rotor of a speed controllable external rotor motor. Balanced on two levels according to quality level G 6.3 DIN/ISO1940. Motor closed, protection class IP 44/54 with pro­tection against humidity and thermal contacts wired in windings from size 355.

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.

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.

 

From DH 400-6-6 D to DH 450-6-6 D

Rosenberg radial roof fans
DH / DHW Series, horizontal outlet

Base frame with bolts for tightening of inlet accessories and rectangular inlet cone made from galvanized steel; from size 560 -710 additionally plastic coated. Rain hood up to size 500 made from seawater resistant aluminium, from size 560 from galvanized steel. Motor supporting plate with integrated protection guard made from plastic coated round bar steel.

Fans are equipped with backward curved high efficiency plastic impellers up to size 450, from size 450 W made from seawater resistant aluminium, mounted onto the rotor of a speed controllable external rotor motor. Balanced on two levels according to quality level G 2.5 DIN/ISO1940. Motor closed, protection class IP 44/54 with pro­tection against humidity and thermal contacts wired in windings from size 355.

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.

Documentation:
Declaration of incorporation and operating instruction are according to Machinery Directive 2006/42/EC, CE identification in accordance to EMC-directive 2004/108/EC and Low Voltage Directive 2006/95/EC. Motor operating instruction is available from motor manufacturer.

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

DH 190-2 E.3BE DH 280-2 E.3EF DH 310L-4-4 E.3EF DH 355-6 D DH 400-6-6 D
DH 190-2-2 E.3BE DH 280-2-2 E.3EF DH 310L-6 D DH 355-6 E DH 450-4 D.5HA
DH 225-2 E.3CA DH 280-4 E.3DF DH 310L-6 E DH 400-4 D.5FA DH 450-4 E
DH 225-2-2 E.3CA DH 280-4-4 E.3DF DH 310L-6-6 E DH 400-4 E.5FA DH 450-4-4 D.5HA
DH 225-4 E DH 310L-4 D.3EF DH 355-4 D.5DF DH 400-4-4 D.5FA DH 450-6 D
DH 225-4-4 E DH 310L-4 E.3EF DH 355-4 E.5FA DH 400-6 D DH 450-6 E
  DH 310L-4-4 D.3EF DH 355-4-4 D.5DF DH 400-6 E DH 450-6-6 D

Picture of Roof fans DH

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