When the system is in operation, the blades of the damper are held in the open position by the air flow. If the system is switched off, the blades close automatically, thus giving protection against the ingress of rain or leaves and birds into the air conditioning system.
| Name | Group | Type | Ident-No. | Type/Size |
|---|---|---|---|---|
| UL · KUL | Pressure Relief Dampers | Technical Leaflet | 3/3/EN/4 | PDF / 81 KB |
| UL· KUL sorozat | Pressure Relief Dampers | Technical Leaflet | 3/3/U/3 | PDF / 74 KB |
| Stampati tecnici UL / KUL | Pressure Relief Dampers | Technical Leaflet | 3/3/I/3 | PDF / 104 KB |
| UL/AUL/KUL | Pressure Relief Dampers | Technical Leaflet | M3.1/4/EN/1 | PDF / 402 KB |
| UL, KUL | Pressure Relief Dampers | Technical Leaflet | 3/3/PL/1 | PDF / 282 KB |
| Серия UL KUL | Pressure Relief Dampers | Technical Leaflet | 3/3/RU/4 | PDF / 135 KB |
