Why an air curtain?
The doors open and entries represent local energy loss, problems and create drafts. The installation of an air curtain can reduce energy loss and improve the comfort level. Three factors influence the airflow passing through an open door:
• pressure difference between inside and outside. The pressure difference between the inside and outside can be eliminated by using balanced ventilation.
• Difference between indoor and outdoor temperature. Warm air is less dense than cold air. This means that cold air from outside to penetrate through the inlet at the bottom of the opening, hot pressing the air out through the top opening. This exchange of air is caused by thermal currents and is due to the fact that masses of cold and warm air have different densities.
• Wind speed against the opening. The air flow passing through the entrance is reinforced by the effect of wind. Suppose that the wind blows uniformly throughout the opening. After a while the local have such great pressure that the air stream is limited to what is filtered out through cracks in the building.
Main Features
• Metal Casing
• Various sizes, de 90 at 150 cm
• Microprocessor Control
• Remote control
• High-speed
• Maximum renewal
• subsided to level loudness
• Single-phase supply voltage 220 V ~ 3-phase 380 V ~
