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Roof fans

EC Roof fans (Type: DV/S...G / DVW/S...G)

Properties

  • flow rates up to 15,000 m³/h
  • size: 310 - 710 mm (impeller diameter)
  • vertical outlet
  • highly efficient EC technology
  • backward curved impellers
  • mounted on/off switch
  • solid weatherproof casing
  • easy to install
  • integrated control system (EC controller)
  • speed is 100% infinitely variable
  • integrated pressure sensor (type: pressure control)

» Design and Downloads

Casing

Base frames with threaded bolts for tightening of suction side accessories and retracted inlet cone made of galvanised sheet metal steel. Rain protective hood and square casing made of seawater-proof aluminium. Motor cage with integrated contact-protection made of plastic coated round bar steel. Housing with integrated sound insulation (S) for design DV/S...G.

Impellers

Efficiency-optimised high-performance impellers with backward curved blades. The impellers are mounted directly on the rotors of the external rotor motors and are dynamically balanced on two levels with the rotor according to quality level G2.5 as per DIN ISO 1940.

The Rosenberg EC roof fans size 310-450 have a weather-proof plastic impeller made of PA6 (polyamide); the frame size 500-710, an impeller made of seawater-resistant aluminium.

Electrical connection

The electrical connection is at the pre-assembled device’s switch depending upon the design single-phase or three-phase. Integrated motor protection is indicated via an alarm relay.

Type "open loop"
In the “open loop” (standard) model, the speed is continuously provided by a 0-10V signal or a potentiometer (accessories).
Type "closed loop"
In the “closed loop” model, the pressure setpoint is continuously provided via a pre-wired potentiometer or a 0-10V signal. The pre-assembled pressure sensor has a display with an adjustable pressure measurement range of (100 Pa, 300 Pa, 500 Pa, 1000 Pa).

Downloads

Catalogue: WORLD OF EC FANS Catalogue: WORLD OF EC FANS

File format: .pdf

Filesize: 23.89 MB

Operating manual: Fans with EC-drives (BA044) Operating manual: Fans with EC-drives (BA044)

File format: .pdf

Filesize: 5.08 MB

Construction scheme: EC Roof fans Construction scheme: EC Roof fans

File format: .pdf

Filesize: 396.85 kB


Roof fans (Type: DV/S, DVW/S)

Properties

  • flow rates up to 20,000 m³/h
  • size: 190 - 710 mm (impeller diameter)
  • vertical outlet
  • backward curved impellers
  • different models
  • solid weatherproof casing
  • easy to install

» Design and Downloads

Casing

The casing of the Rosenberg roof fans (DV/S, DVW/S) consists of seawater-resistant aluminium and a base frame with integrated inlet cone.

model - DV
Base frame with integrated inlet cone made of galvanised sheet steel
model - DVS
Casing with integrated sound insulation (S); base frame with integrated inlet cone made of galvanised sheet steel
model - DVW
up to size 500: Base frame with integrated inlet cone made of galvanised sheet steel
from size 560: Base frame with integrated inlet cone made of galvanised sheet steel
model - DVWS
Casing with integrated sound insulation (S)
up to size 500: Base frame with integrated inlet cone made of galvanised sheet steel
from size 560: Base frame with integrated inlet cone made of galvanised sheet steel and additional plastic coating

Impellers

The impellers are mounted directly on the rotors of the external rotor motors and are dynamically balanced on two levels with the rotor according to quality level G2.5 as per DIN ISO 1940.

model - DV/S
up to size 400: High performance impellers with backward curved blades made of plastic
from size 450: High performance impellers with backward curved blades made of aluminium
model - DVW/S
efficiency-optimised high performance impellers (W) with backward curved blades made of aluminium

Electrical connection

The drive motors are fitted with a set-up terminal box in IP54, which is easily accessible for the electrical connection after removing the rain guard. Upon request, the device switch can be mounted (optional) on the casing of the fan.
up to size 310L
Motor in protective class IP44. Thermal switch is switched in series in the windings of the motor.
from size 355
Motor in protection class IP54. Thermal switch installed in the winding and routed to the outside on the terminal board.

Downloads

Catalogue: WORLD OF AC FANS Catalogue: WORLD OF AC FANS

File format: .pdf

Filesize: 37.38 MB

Operating manual: Fans with AC-drives (BA045) Operating manual: Fans with AC-drives (BA045)

File format: .pdf

Filesize: 1.29 MB

Construction scheme: Roof fans Construction scheme: Roof fans

File format: .pdf

Filesize: 439.66 kB


Roof fans (Type: DH, DHW)

Properties

  • flow rates up to 15,500 m³/h
  • size: 190 - 630 mm (impeller diameter)
  • horizontal outlet
  • backward curved impellers
  • solid weatherproof casing
  • easy to install

» Design and Downloads

Casing

The casing of the Rosenberg roof fans (DH, DHW) consists of seawater-resistant aluminium and a base frame with integrated inlet cone.

model - DH
Hood made of seawater-resistant aluminium; base frame with integrated inlet cone made of galvanised steel sheet
model - DHW
up to size 500: Hood made of seawater-resistant aluminium; base frame with integrated inlet cone made of galvanised steel sheet
from size 560: Hood made of galvanised steel; base frame with integrated inlet cone made of galvanised steel sheet and additionally plastic coated

Impellers

The impellers are mounted directly on the rotors of the external rotor motors and are dynamically balanced on two levels with the rotor according to quality level G2.5 as per DIN ISO 1940.

model - DH
up to size 400: High performance impellers with backward curved blades made of plastic
from size 450: High performance impellers with backward curved blades made of aluminium
model - DHW
efficiency-optimised high performance impellers (W) with backward curved blades made of aluminium

Electrical connection

The drive motors are fitted with a set-up terminal box in IP54, which is easily accessible for the electrical connection after removing the rain guard. Upon request, the device switch can be mounted (optional) on the casing of the fan.
up to size 310L
Motor in protection class IP44. Thermal switch is switched in series in the windings of the motor.
from size 355
Motor in protection class IP54. Thermal switch installed in the winding and routed to the outside on the terminal board.

Downloads

Catalogue: WORLD OF AC FANS Catalogue: WORLD OF AC FANS

File format: .pdf

Filesize: 37.38 MB

Operating manual: Fans with AC-drives (BA045) Operating manual: Fans with AC-drives (BA045)

File format: .pdf

Filesize: 1.29 MB

Construction scheme: Roof fans Construction scheme: Roof fans

File format: .pdf

Filesize: 439.66 kB


Roof fans with IEC standard motor (Type: DVN/S, DVWN/S)

Properties

  • flow rates up to 36,000 m³/h
  • size: 310 - 900 mm (impeller diameter)
  • vertical outlet
  • IEC standard motors as drive
  • suitable for higher conveying temperatures
  • backward curved impellers
  • different models
  • solid weatherproof casing
  • easy to install

» Design and Downloads

Casing

The casing of the Rosenberg roof fans (DVN/S, DVWN/S) consists of seawater-resistant aluminium and a base frame with integrated inlet cone.

model - DVN
Base frame with integrated inlet cone made of galvanised sheet steel and additional plastic coating
model - DVNS
Casing with integrated sound insulation (S) ; base frame with integrated inlet cone made of galvanised sheet steel and additional plastic coating
model - DVWN
up to size 500: Base frame with integrated inlet cone made of galvanised sheet steel
from size 560: Base frame with integrated inlet cone made of galvanised sheet steel and additional plastic coating
model - DVWNS
Casing with integrated sound insulation (S), as well as plastic coating available on request
up to size 500: Base frame with integrated inlet cone made of galvanised sheet steel
from size 560: Base frame with integrated inlet cone made of galvanised sheet steel and additional plastic coating

Impellers

model - DVN/DVNS
High-performance impellers with backward curved blades made of aluminium. The impellers together with the impeller hub are dynamically balanced at two levels according to quality level G2.5 as per DIN ISO1940. The impellers are mounted overhung on the shaft of an IEC standard motor type B5.
model - DVWN/DVWNS
Efficiency-optimised (W) high performance impellers with backward curved blades made of aluminium. The impellers together with the impeller hub are dynamically balanced at two levels according to quality level G2.5 as per DIN ISO1940.

Electrical connection

The drive motors are fitted with a set-up terminal box in the protection class IP55 which is easily accessible for the electrical connection after removing the hood on the motor. Upon request, the device switch can be mounted (optional) on the casing of the fan. Motor protection via PTC thermistors.

Downloads

Catalogue: WORLD OF AC FANS Catalogue: WORLD OF AC FANS

File format: .pdf

Filesize: 37.38 MB

Construction scheme: Roof fans Construction scheme: Roof fans

File format: .pdf

Filesize: 439.66 kB