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Roof fans

Roof fans

Roof fans are used for ventilation of apartment buildings, workshops, production halls, restaurants and other buildings with both flat and pitched roofs. In the category of roof fans we offer fans that are designed for installation and connection to common ducts of apartment buildings or for ventilation ducts leading to roofs of buildings.

RF

RF
 

CRVB / CRVT

CRVB / CRVT

The CRVB / CRVT fans are radial roof fans suitable for larger flow rates and larger pressure losses of air ducts. The CRVB / CRVT roof fan housing is designed for vertical air discharge and is made of a combination of galvanized steel sheet and Al alloy sheet. The base of the CRVB / CRVT roof fan is made of galvanized sheet steel. The brackets, grille and screws are also galvanically plated. The fan cowl is made of Al sheet metal. The fan impeller is radial with backward curved blades.

 

CTB

CTB

The CTB / CTB Ecowatt roof fans are radial fans designed for ventilation of workshops, offices, commercial premises, bars and restaurants. The CTB Ecowatt plus fans are suitable for ventilation of apartment buildings thanks to the intelligent DCV control system. The CTB Ecowatt fans are equipped with energy-saving EC motors with for-life-grease-filled ball bearings. The housing of the CTB fans is made of galvanized steel sheet and it is provided with black epoxy coating. All models are equipped with a protective anti-bird netting.

 

HCTB / HCTT

HCTB / HCTT

The HCTB / HCTT axial roof fans are designed for air supply (A) and exhaust (B). The cowl of the HCTB / HCTT fans is made of AL sheet metal, the base is made of galvanized steel sheet. The fan motor is located out of the air flow. The roof fans are suitable due to their design for ventilation of industrial halls, business premises, swimming pools and warehouses.

 

MX

MX
 

DVS

DVS

The DVS roof exhaust fans are equipped with radial impellers with backward curved blades and external rotor motors. The fans have an asynchronous squirrel-cage motor mounted on anti-vibration feet that prevent the transmission of vibration and an external rotor with encapsulated ball bearings. Speed control is possible by changing the voltage or using a frequency converter. The DVS fans have vertical discharge. The transported air must be free of particles that could cause corrosion or imbalance of the impeller. The fan housing is made of aluminium, the base plate is made of galvanized sheet steel.

 

DVSI

DVSIThe DVSI roof exhaust fans are acoustically insulated fans equipped with radial impellers with backward curved blades and external rotor motors. The fans have an asynchronous squirrel-cage motor mounted on anti-vibration feet that prevent the transmission of vibration and an external rotor with encapsulated ball bearings. The DVSI fans have vertical discharge and are acoustically and thermally insulated with a 50 mm mineral wool layer. The fan speed can be controlled by changing the voltage or using a frequency converter. The fan housing is made of aluminium, the base plate is made of galvanized sheet steel.
 

DHS

DHS

The DHS roof exhaust fans are equipped with radial impellers with backward curved blades and external rotor motors. The fans have an asynchronous short-winding motor mounted on anti-vibration feet that prevent vibration transmission and an external rotor with sealed ball bearings. Speed control is possible by changing the voltage or using a frequency converter. The DHS fans have horizontal discharge. The transported air must be free of particles that could cause corrosion or imbalance of the impeller. The fan housing is made of aluminium, the base plate is made of galvanized sheet steel.

 

DHA

DHA

The DHA fans are inlet roof fans equipped with an axial impeller and an external rotor motor. The DHA fans are maintenance-free and speed-adjustable. The fan housing and the base frame are made of painted galvanized sheet. The exhaust head is made of highly durable aluminum.

 

TFSR / TFSK

TFSR / TFSK

The TFSR / TFSK roof fans are radial single inlet fans with backward curved blades and with an external rotor. The fan housing is made of galvanized steel sheet with powder coating in standard black colour. The TFSR fans have a circular connection and the TFSK fans have a square base plate. The fans can be equipped with a standard AC motor as well as with an energy-saving EC motor. For easier service and maintenance, the fans are equipped with a tiltable impeller and with a protective grille to prevent unintentional contact with the impeller.

 

ZRS

ZRS

The ZRS radial chimney smoke fans are designed for flue gas exhaust from chimneys with a maximum temperature of 200 °C. The fans are specially equipped with two impellers, one for exhaust and the other for cooling the fan motor. The ZRS fans are recommended for fireplaces with a maximum fire area of 0.8 m2. The fans prevent the backdraught from happening. It is recommended to use the fans with speed controllers.

 

DVV

DVV

The DVV roof fans for higher temperatures is designed for exhausting clean air with a maximum temperature of 120 °C. The DVV roof exhaust radial fans is suitable for more demanding applications, where the possibility of extracting air with a constant temperature of -20 to 120 °C is utilized. The DVV fans have highly efficient IE1 / IE2 motors located outside the air flow and equipped with a radial impeller made of galvanized steel. On request, the fans can be fitted with an electric heater for installation at lower temperatures.

 

TPSB

TPSB

The TPSB radial roof fans are designed for horizontal roof structures or, with the use of appropriate accessories, also for pitched roofs. The TPSB fans have a special patented impeller cover design for high performance and for low installation profile, which greatly expands the possibility of their use.

 

DVN

DVN

The DVN radial roof exhaust fans are suitable for applications requiring high airflow. The DVN fans are equipped with radial impellers with backward curved blades and with external rotor motors installed on anti-vibration feet. The fan speed can be regulated by changing the transformer voltage (IEC motors) or by a frequency converter. The fan housing is made of aluminium, the base plate is made of galvanized steel sheet and is powder coated. The maximum temperature of transported air is 120 °C.

 

DVNI

DVNI

The DVNI acoustically insulated radial roof fans are suitable for applications requiring high airflow performance and low noise level. The DVNI fans are made of highly resistant aluminium, the base plate is made of galvanized steel sheet.

The DVNI exhaust fans are equipped with an impeller with backward curved blades and with external rotor motors installed on anti-vibration feet. The fan speed can be regulated by changing the transformer voltage (IEC motors) or by a frequency converter. The DVNI roof fan housing is acoustically insulated with a 50 mm layer of mineral wool. The maximum temperature of transported air is 120 °C.

 

DVC / DVC-P

DVC / DVC-P

The DVC fans are roof exhaust fans with an EC energy saving motor. The DVC fan is made of highly resistant aluminium. The base plate is made of galvanized steel sheet. The fan speed is controlled by an external signal of 0-10V. The DVC fan has an integrated potentiometer in the terminal block, which can easily change the operating point. The DVC exhaust roof fan is equipped with an impeller with backward curved blades made of polyamide PU (sizes 190 and 225) or of polypropylene (sizes 315 to 710).

The DVC-P exhaust roof fans are equipped with an EC motor, a pressure sensor and a constant pressure regulator for the speed control depending on the pressure change in the HVAC system. The DVC-P fan is equipped with an impeller with backward curved blades made of polyamide PA (sizes 190 and 225) or of polypropylene PP (sizes 315 to 710). The roof fan motors of sizes 355 to 710 are suspended on efficient vibration absorbers. The DVC-P fan housing is made of aluminium and the base plate is made of galvanized steel sheet.

 

DVCI / DVCI-P

DVCI / DVCI-P

The DVCI insulated fans are exhaust roof fans with an EC energy saving motor. The DVCI fan is made of highly resistant aluminium. The base plate is made of galvanized steel sheet. The fan speed is controlled by an external signal of 0-10V. The DVCI fan has an integrated potentiometer in the terminal block for an easy change of the operating point. The DVCI insulated exhaust roof fan is equipped with an impeller with backward curved blades made of polyamide PU (sizes 190 and 225) or of polypropylene (sizes 315 to 710).

The DVCI-P insulated exhaust roof fans are equipped with an EC motor, a pressure sensor and a constant pressure regulator controlling the fan speed depending on the pressure change in the HVAC duct system. The DVCI-P fan is equipped with an impeller with backward curved blades made of polyamide PU (sizes 190 and 225) or of polypropylene (sizes 315 to 710). The the roof fan motors of sizes 355 to 710 are suspended on efficient vibration absorbers. The DVCI-P fan housing is made of aluminium and the base plate of galvanized steel sheet. The DVCI-P fan is thermally and acoustically insulated by a 50 mm mineral wool layer.

 

TFC / TFC-P

TFC / TFC-P

The TFC roof fans with an EC motor are designed for residential and commercial buildings. The TFC fan has a built-in potentiometer that can be used to precisely set the desired airflow. The service switch is located on the fan housing. The hinged design facilitates service and maintenance. The TFC-P roof fan with an EC motor is designed for residential and commercial buildings.

The TFC-P fan contains the built-in VAV constant pressure control that can be easily converted to the CAV constant airflow control. The service switch is located on the fan housing. The hinged design facilitates service and maintenance.