Roof fans direct driven

Roof fans direct driven

Systemair direct-driven roof fans are very robust and reliable solutions that will fit every roof exhaust applications.


Roof fans direct driven

DHA

DHA

Casing

Casing and base frame manufactured from galvanized sheet steel, powder coated RAL 7010; cowl manufactured from seawater resistant aluminium.

Motor

Voltage controllable external rotor motors.

Impeller geometry

Impeller blades with bionic shape are manufactured from high efficiency composite material.

Output control

Three phase version that can be switched between D/Y connection for two speeds.

Motor protection

Motor protection via integral thermal contacts with external leads for connection to a motor protection switch.

DHS

DHS

Casing

Casing made from sea water resistant aluminium. Base frame manufactured from galvanised steel with integrated inlet cone. Integrated bird guard manufactured from powder coated, galvanised steel.

Motor

Voltage controllable external rotor motors, suspended vibration-free.

Impeller geometry

Radial impeller with backward curved blades manufactured from high-performance composite material, with highlyefficient, profiled 3-D blade geometry.

Output control

3 phase motors speed controllable via transformer, 2 speed via star-delta switching. Frequency converter controllable by using an all-pole sinusoidal filter. The single phase motors can be controlled by transformer / thyristor or can

be operated in 2 speeds via a two speed switch.

Motor protection

Integrated thermal contacts, up to size 311 with manual reset; from size 355 integrated thermal contacts with cables for connection to a motor protection switching device.

DVS

DVS

Casing

Casing made from sea water resistant aluminium. Base frame manufactured from galvanised steel with integrated inlet cone. Iintegrated bird guard manufactured from powder coated, galvanised steel. DVSI / DVSI sileo with 50 mm mineral wool acoustic and thermal insulation.

Motor

Voltage controllable external rotor motors, suspended vibration-free.

Impeller geometry

Radial impeller with backward curved blades manufactured from high-performance composite material, with highlyefficient, profiled 3-D blade geometry, from size 710 in aluminium.

Output control

3-phase motors speed controllable via transformer, 2 via star-delta switching. Frequency converter controllable by using an all-pole sinusoidal filter. The single phase motors can be controlled via a transformer or thyristor.

Motor protection

Integrated thermal contacts, up to size 311 with manual reset; from size 355 integrated thermal contacts with cables for connection to a motor protection switching device.

DVSI

DVSI

Casing

Casing made from sea water resistant aluminium. Base frame manufactured from galvanised steel with integrated inlet cone. Iintegrated bird guard manufactured from powder coated, galvanised steel. DVSI / DVSI sileo with 50 mm mineral wool acoustic and thermal insulation.

Motor

Voltage controllable external rotor motors, suspended vibration-free.

Impeller geometry

Radial impeller with backward curved blades manufactured from high-performance composite material, with highlyefficient, profiled 3-D blade geometry, from size 710 in aluminium.

Output control

3-phase motors speed controllable via transformer, 2 via star-delta switching. Frequency converter controllable by using an all-pole sinusoidal filter. The single phase motors can be controlled via a transformer or thyristor.

Motor protection

Integrated thermal contacts, up to size 311 with manual reset; from size 355 integrated thermal contacts with cables for connection to a motor protection switching device.

TFE

TFE

Roof fan > 0.2 m³/s

TFSK

TFSK

Casing

Casing made from black powder coated galvanised steel. Available in black or brick red.

Motor

Voltage controllable external rotor motors.

Impeller geometry

Radial impeller with backward curved blades.

Output control

Speed controllable via transformer and thyristor speed controller.

Motor protection

Integrated thermal contacts in accordance with EN60335-2-80, with manual reset.

TFSR

TFSR

Casing

Casing made from black powder coated galvanised sheet steel. Available in black or brick red.

Motor

Voltage controllable external rotor motors.

Impeller geometry

Radial impeller with backward curved blades.

Output control

Speed controllable via transformer and thyristor speed controller.

Motor protection

Integrated thermal contacts in accordance with EN60335-2-80, with manual reset.

TOE

TOE

Roof fans: 0,81-1,13 m³/s, backward curved impeller, 1 phase

TOV

TOV

Roof fans: 0,86-3,05 m³/s, backward curved impeller, 3 phase

ZRS

ZRS

Systemair flue-gas fans counteract drafts caused by stoves, ovens and open fireplaces. Flue-gas fans are positioned on the top of the chimney and fixed with four adjustable locating rods which are inserted down the chimney. This means that no fixing into the chimney itself is required. The fan is a discreet and compact unit with a low profile.

Casing

The flue-gas fans have a casing of cast aluminium alloy.

Impeller geometry

The ZRS 170 impeller is made of silumin alloy, while the ZRS 180 impeller is made of stainless steel.

Motor

External rotor motor outside the airstream.

Installation

Fans are supplied with 1 m armoured cable and a junction box. Steel cables are provided to give extra support for the fan during chimney sweeping and similar operations.

The ZRS 170 is suitable for smaller fireplaces with an aperture of less than 0.35 m2, and the ZRS 180 is intended for fireplaces with an aperture between 0.35 and 0.80 m2.