DVE... / DHE… - Roof Fan vertical or horizontal outlet
· External rotor motor within the air flow
· Speed controllable
· Motor protection by thermal contacts
· Easy to assemble
· Sturdy and weatherproof housing
· Extensive range of accessories
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Features and Constructions:
The Rosenberg-Roof Fans are used for the ventilation of apartments, stores, supermarkets, workshop halls, baths, kitchens,dining rooms, storage rooms, garages, stables and many more. The fans are suitable for the assembly on flat- , pent- , saddle- and shed roofs. The broad roof-fan product range offers for each application the optimal solution.
Applications:
Garages / Offices / Bars / Skyscrapers / Hotels / Industrial buildings / cellars / kindergartens / cinemas / warehouses / nursing homes / schools / gymnasiums / supermarkets / workshops / car parks / retail sector / Fitness center / residential buildings
We distinguish between …
… Type DHE with horizontal outlet = for less polluted air
… Type DVE with vertical outlet = for heavily contaminated air
The DVE or DHE series distinguish themselves by high volume flows at medium pressure difference. An extensive accessories product range for the roof mounting or pipe connection for highest requirements otimally rounds off the
portfolio.
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 identification 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 DVE:
Casing made of seawater-resistant aluminum.
horizontal type DHE:
up to size 500: The cover is made of seawater-resistant aluminum.
from size 560: The rain covers are made of galvanized sheet
Base frame for DVE and DHE:
Inlet nozzle made of galvanized sheet
Coating:
Standard Coating RAL 7030 / RAL 7035 or other coating possible 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 to 560:
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 630 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.
Motors apply to protection class IP44/IP54
Thermal contacts embedded in the windings and
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-dimensioned ball-bearings, fitted on both sides with long life time grease are used. Both ball-bearing seats are ground to superfinish 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.
UL-Permit:
For 60Hz Types (possible on request)
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Electrical Connection:
The motors are equipped with a built-on terminal box in protection class IP 54 with easy access for electrical connection after removal of the rain cover. Upon request the isolator switch (against extra charge) can be mounted on the casing of the fan.
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Air volume control:
For more information see accessories!
Reference:
Please note the directives 1253/2014/EU (Lot 6) applying from 01.01.2016 for the ventilation units (ventilation fans).
Keyword: „Multi-stage drive" (at least 3 fixed speeds, as well as speed 0 („off"). Suitable control and regulation devices are available as accessories.
5-Speed control unit:
230V à RE / RTE
400V à RTD
Infinitely variable control unit:
230V à ED / REE
400V à RED
400V à via Frequency converter (upon request available)
WARNING: Base frequency must correspond to nominal frequency
2-speed control unit
(see reference „ multi-stage-drive)
up to size 310:
230V à eigther high or low speed is possible, dependering on thee connecting in the terminal box
(Wiring diagram 01.020).
from size 355:
400V à MSD 2
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Scope of delivery:
· Roof fan (DVE / DHE)
· Documentation
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Important Notes:
Air performance curves:
The performance curves for these fan types have been measured on a inlet side chamber testing platform according to DIN ISO EN 5801 in mounting position A (free inlet; free outlet) and are valid for air with a density of 1.2 kg/m³ and indicate the pressure increase Dpfa as a function of the air flow.
Noise Levels:
The bordered values printed in the performance curve diagrams show the A weighted LWA8 sound power level (fan outlet).
Determination of A-weighted LWA5 sound power level at fan inlet according to DIN 45 635, Part 38 is calculated as follows:
Size 450-500: LWA5 [dB(A)] = LWA8 [dB(A)] - 4dB
Size 560: LWA5 [dB(A)] = LWA8 [dB(A)] - 5dB
Size 630: LWA5 [dB(A)] = LWA8 [dB(A)] - 4dB
Size 710: LWA5 [dB(A)] = LWA8 [dB(A)] - 3dB
The "A" weighted sound pressure level LPA at a distance of 1 meter is calculated approximately by deducting 7 db(A) from the "A" weighted sound power level. It is important 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.
ErP-Information:
Rosenberg fans have a specific (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.
Roof fans vertical outlet
Base frame with bolts for tightening of inlet accessories and retracted 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 560, from size 630 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.
For further information, please click the model below for detail.
Picture of roof fans DVE
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