| Mono lube ventilation system QuietVent ELS Wonderfully quiet QuietVent ELS units that are controlled as required, carry the used air from bathroom and toilet via the central main duct. Using a single rising duct for Lip io 20 floors or 40 single units, without the need for a central fan, QuietVent ELS guarantees efficient ventilation at low energy costs. Outside air Outside air intake grilles and valves bring In fresh air to the bedrooms and living rooms. Helios offer grilles and valves for wall and window Installation, manual or It-jmperuiure controlled, with automatic air flow and acoustic lining. Fire protection To prevent fire transfer to other floor levels we offer the following solutions corresponding to the circumstances on the site. 1. When installing in fire rated installation shafts Integrated fire protection with casings ELS-GB.., GDB.., GA.. integrated fire protection shutters. 2. When installing in non fire rated installation shafts (Cover e.g. from 12.5 mm thick plaster board) a) Fire damper ELS-D, to be placed below the storey ceiling. b| Fire protection sleeve BSH, to be installed into the duct course of the Both soWions lower the investment costs and enlarge the usable room space. The installation is low on cr. friendly and maintenance free. Speeliication see product pages. |