DVS Roof Fans

Maintenance-free, reliable, direct-driven centrifugal roof fan with vertical discharge

DVS is the non-insulated version
DVSI is the insulated version with acoustic and thermal insulation 50 mm
Extensive range of accessories
Available with AC motors for 50 and 60Hz

Flexibility

The DVS/DVSI fans areintended to use for extract air with vertical discharge.

The fans are designed to handle high air volumes at medium pressure without generating excessive noise.

Reliability

The casing made out of seawater resistant aluminium with an inside galvanised steel frame is hard-wearing. This makes the fan also suitable for coastal applications.

The combination of casing and motor construction ensures to minimize the need for maintenance of the fans and allows long continuous operation.

Performance

The sound optimized impellers together with high efficient external rotor motors are designed to ensure high-level performance to minimize power consumption and maximize efficiency.

Accessories

DVS/DVSI fans can be selected together with variety types of accessories as roof sockets, tilting devices, dampers, etc.

Construction

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

DVSI is with 50 mm mineral wool acoustic and thermal insulation.

Impeller

The DVS/DVSI fans use radial impeller with backward curved blades. These are out of high-performance composite material or aluminum (from Size 710), dynamically balanced and paired with corresponding AC external rotor motors.

Motor

DVS/DVSI fans are designed with AC motors. Motors are suitable for 50Hz and 60Hz.

Motor protection

Depending on the type, AC motors have an integrated thermal protection with manual (electrical) reset, prewired integral thermocontact TK or thermistor PTC with leads to a motor protection device.

Control

The AC motors can be controlled by 5-step, stepless speed regulator, D/Y switch or frequency converter.

Installation

The DVS/DVSI are for outside installation.