• Quat Rosenberg
  • Quat cap dong Rosenberg
  • quat ec Rosenberg
  • Quat Rosenberg Duc

DR fans

ER... / DR... - Axial fans with double flange casing


·    low installation depth
·    usable for many applications
·    can be installed in any position
·    motor protection by thermal contacts
·    speed is variable using auto transformers

_____________________________________________________________________________________________________

Description:

High efficiency axial fans are used large for  air volumes pressure.  The fans with square inlet cone are used for ventilating restaurants, gymnasiums, conference rooms, workshops, ware-houses,  swimming pools and greenhouses.


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

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.

_____________________________________________________________________________________________________

Casing:

Casing with double flange ring for duct installation
The casings of high efficiency axial fans are made of galvanized sheet steel and are plastic coated.
 
_____________________________________________________________________________________________________

Impellers:

The high efficiency axial fans have aerodynamically profiled blades.  The  blades  are  made  of galvanized sheet metal, and are mounted directly to the rotor of the external rotor motor and are balanced dynamically  together  with  the rotor according to quality level G2.5 to DIN1940.


Sizes 200 to 300        = made of galvanized and lacquered sheet steel
Sizes 315 to 630-6        = made of plastic
Sizes 630-4 to 1000        = made of aluminium

_____________________________________________________________________________________________________

Motor and motor protection:

All Rosenberg fans are  equipped with  direct driven  external rotor motors.  All our fans have motor protection  through thermal contacts in the motor windings as standard. The motors apply to protection class IP44/IP54.

Sizes 200 to 300        = motor protection class IP44
All other sizes            = motor protection class IP54

The drive has due to an external rotor motor a space saving, compact and attractive design. The motor is fitted within the impeller, which enables the best possible cooling. For this reason  a  100%  variable speed control can be guaranteed. V-belts, additional tension bars and motor mounting devices are  not necessary.  Only well-dimensions ball-bearings,  fitted on both sides and  life  time  greased are  used.
Both ball-bearing seats are  ground to high  precision in one work process to eliminate  any  vibrations.
External rotor motors have extremely low starting currents.  The windings  comply to  isolation class F.
In addition the windings have a standard moisture impregnation.

_____________________________________________________________________________________________________

Electrical connection:

The  motors  are  fitted  with  an  outgoing  cable.  The  electrical connection  can be made via an IP44 terminal box, which is supplied loose.

_____________________________________________________________________________________________________

Installation:

Axial fans with double flanges can be easily integrated into a pipe system. Accessories like flanges or flexible duct connectors are optional.

_____________________________________________________________________________________________________

Air volume control:
For more information see accessories!

5-speed control unit:
230V    à   RE / RTE …
400V    à   RTD …

Infinitely variable control unit:
230V    à   ED / REE …
400V    à   RED …

_____________________________________________________________________________________________________

Scope of delivery:

·   Axial fan (ER / DR)
·   Terminal box (loose)
·   Documentation

_____________________________________________________________________________________________________

Important notes:

Air performance curves:

The  performance  curves  for  these  fan  types have been measured in mounting position A (free inlet; free outlet) and show  the  pressure  increase  ∆pfa as  a function of the air flow;  version with inlet cone and without protection guards.  

Noise levels:
The bordered values printed in the performance curve  diagrams show the  "A"  weighted LWA5  sound  power level (fan inlet). Determination of "A" weighted LWA6 sound power level at fan outlet:
LWA6 [dB(A)] = LWA5 [dB(A)]
The "A" weighted sound pressure level LPA at a distance of 1 metre is calculated approximately by  deducting 7 db(A) from the "A" weighted sound power level. It is importmant to note that the reflection and room characteristic as well as natural frequencies influence the sound pressure levels a different way. The octave sound power level LWA at octave medium frequency you can find on the table on each fan type page.

Technical data presentation:
The performance data shown represent the accuracy class 3 according to DIN 24166.

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

Erp-Information:
Rosenberg fans have a spezfic (pressure-) ratio < 1,05 (pressure < 5000 Pa).

Service life:
For maximum service life of Rosenberg products please beware of the maintenance hints on the manual for each product type.

Recycling and disposal:
For recycling and disposal of Rosenberg products comply with applicable locally requirements and regulations.

 

Axial fans with double flange casing

Casing made from galvanized and plastic-coated steel, ER/DR series short cased with two flanges.

Impellers with aerodynamically shaped blades, up to size 300 made from galvanized steel, from size 315 up to size 630-6 made from plastic, from size 630-4 from die-cast aluminium, mounted onto a speed controllable external rotor motor. The fan is balanced on two levels according to quality level G 2.5 DIN/ISO 1940.

Closed motor, protection class IP 44/54 with protection against humidity and thermal contacts wired in windings for motor protection from size 315.
Maintenance free ball bearings closed on both sides, sealed for life. Electrical connection through terminal box (not connected) in IP 44.

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.

DR 1000-12.7KF DR 315-2 DR 350-6 DR 500-4.5FA DR 630-4 DR 800-12
DR 1000-12-12.7KF DR 315-4.4DA DR 400-4.4EC DR 500-6 DR 630-4.6LA DR 800-6.6HF
DR 1000-8 DR 315-6 DR 400-6 DR 500-6.5DF DR 630-6.5HA DR 800-8
DR 1000-8.7NA DR 350-2 DR 450-4.5DF DR 560-4.5HA DR 710-12  
DR 1000-8-8 DR 350-4 DR 450-6.5DF DR 560-6.5FA DR 710-6.6HF  
DR 1000-8-8.7NA DR 350-4.4EC     DR 710-8  

Picture of Axial fans DR

Member of EVIA

Member of EVIA

» Website

Member of RLT-Herstellerverband e.V.

Member of RLT-Herstellerverband e.V.

» Website

Phần mềm chọn quạt

Phần mềm chọn quạt

» Website

Đầu trang