VKH 280 EC

Roof exhaust centrifugal fans with horizontal air exhaust

APPLICATION

• The fans are rated for exhaust ventilation and air conditioning systems for various premises that require reasonable energy saving solutions and controlled ventilation systems.
• The use of fans equipped with EC motors, provides significant savings in electricity consumption and is the most effective and modern solution in ventilation systems.
• Such characteristics are especially important for application in public premises as banks, supermarkets, restaurants, hotels, residential premises or domestic spaces.

DESIGN

• The fan casing is made of galvanized steel (VKHz EC), aluminum (VKHA EC) or from steel with polymeric coating (VKH EC).

MOTOR

• The fans are equipped with high-efficient electronically-commutated direct current motors with external rotor and impellers with backward curved blades.
• EC motor is free of friction and wear parts as a commutator and brushes. These components are replaced by a maintenance-free electronic circuit board.
• EC motors are featured with high performance and well controllable speed range.
• Premium efficiency reaching 90 % is a definite advantage of electronically commutated motors.

INTEGRATED FUNCTIONS AND CONTROL

• The fan is controlled by an external 0-10 V control signal. The fan capacity is regulated depending on temperature, pressure, smoke level etc.
• The fan has low energy consumption at any speed.
• Maximum fan speed does not depend on the available current frequency and is suitable for operation both at 50 and 60 Hz.
• Several fans can be integrated into a single computer-driven control system.
• Custom designed software provides high accuracy control of the fans integrated into a network.
• The LED-display of the computer shows all the system parameters and the operation mode can be set individually for each fan in the network.

MOUNTING

• VKH…EC fans are designed for mounting on the roof.
• The mounting plate enables the fan installation on a level surface directly above a ventilation shaft or air duct and the holes on this mounting plate provide reliable rigid fixing of the fan to a static surface.