The following table shows the applications depending on the air curtain model. It also indicates the recommended height and the heating systems available for each model (unheated or electric/water heated).
| Material: | Powder Coating |
| Motor: | Work in 5000 hour |
| Length: | 900mm |
| Installation heights: | 3.5m |
| Power: | Low: 186 W Medium: 238 W high: 322 W |
| Air Speed: | Low 10m/s, medium 12,5m/s, high 156m/s |
| Flow air: | 1020 m3/h |
| Noise: | 53 dB |
| Unit Size: | 900mm x 230mm x 212mm |
| Net weight: | 14.8 kg |
| Voltage: | 220V/50Hz/1phase |
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Types of air curtains Nedfon FM3509DY: non-recirculating or recirculating. A non-recirculating unit discharges the air to the environment. Otherwise recirculating collect and return the air from the discharged air. Recirculating air curtains are more efficient but the majority of installations are non-recirculating due to lower costs.
The air curtains reduce energy costs by keeping heated or cooled air in the internal building atmosphere.
Efficient air curtains will save up to 80% energy looses across a doorway compared with a door without air curtain.
During the winter an air curtain creates a barrier that keeps out the cold air while in the summer the air stream keeps out the hot air from outside.
Bearing in mind the energy saved, the average payback time for an air curtain is between 2 and 5 years depending on usage and climate conditions.
