Flexibility
The DVN/DVNI fans are intended to use for extract air with vertical discharge.
DVN/DVNI are the smart choice when requirements are higher than average, in applications such as extraction from kitchens, process air systems and industrial ovens. They are suitable for continuous air flow temperatures up to 120°C.
The fans are designed to handle high 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.
The combination of casing and motor construction ensures to minimize the need for maintenance of the fans and allows long continuous operation.
Performance
High performance aluminium impeller together with high efficient motors are designed to ensure high-level performance to minimize power consumption and maximize efficiency.
Accessories
DVN/DVNI fans can be selected together with variety types of accessories as roof sockets, tilting devices, dampers, etc.
The Casing is 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.
DVNI is with 50 mm mineral wool acoustic and thermal insulation.
Impeller
The DVN/DVNI fans use radial impeller with backward curved blades. These are made out of aluminum, dynamically balanced and paired with corresponding IEC motor with efficiency IE3 or EC motor.
Motor
Depending on the type, DVN/DVNI fans are equipped with AC or EC external rotor 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.
Fans with EC motors have an integrated electronic thermal protection including locked-rotor protection and soft-start.
Control
EC motors with built-in potentiometer to adjust working point can be also controlled by external signal 0-10V.
EC motors, depending on the type are also equipped with ModBus communication or alarm signal.
AC motors can be controlled by 5-step, stepless speed regulator, D/Y switch or frequency converter.
Installation
The DVN/DVNI are for outside installation.
Technical Data:
Article name - DVN 900D6
Article number - 87819
400V 3~ 50Hz
Input power - 7,595 W
Input current - 13.7 A
Impeller speed - 981rpm
Air flow - max 8.936m3/s
Temperature of transported air - max 120C
Max temperature of transported air, when speed controlled - 120C
Sound data:
Sound pressure level at 10m (free field) 62 dB(A)
Sound pressure level at 4m (free field) 70 dB(A)
Protection/Classification
Enclosure class, motor IP55
Insulation class F
Weight 387 kg
Motor type AC
