Installation instructions Prior to installation, always follow the instructions and warnings in the chapter entitled ”Safety instructions”! Connecting pipes The diameter of the exhaust air pipes should not be less than 150 mm. Exhaust-air mode Round pipes: We recommend an inner diameter of 150 mm, however at least 120 mm. The exhaust air is conveyed upwards via a ventilation shaft or directly through the outer wall to the exterior. Flat ducts must have the same inner cross- section as round pipes. There should be no sharp bends. Ш 150 mm approx. 177 cm 2 Ш 120 mm approx. 113 cm 2 NOTE:
The exhaust air must not be conveyed into a functioning smoke or exhaust gas flue or into a shaft which is used to ventilate installation rooms which contain heating appliances. If pipe diameters differ: Use sealing strips. Before conveying the exhaust air into a non-functioning smoke or exhaust gas flue, obtain the consent of the appropriate heating engineer. Connection of 150 mm ш exhaust air pipe (recommended size) Discharge exhaust air in accordance with the official and statutory regulations (e.g. regional building laws). Attach exhaust air pipe directly to the air-pipe connector and seal appropriately. If using an aluminium pipe, smooth the connection area beforehand.
If the exhaust air is conveyed through the outer wall, a telescopic wall box should be used. To ensure optimum performance, the extractor hood requires: – a short, straight exhaust air pipe and – the largest possible pipe diameter. If pipe bends cannot be avoided, ensure the largest possible radii. Connection of 120 mm ш exhaust air pipe Attach reducing connector directly to the air- pipe connector. NOTE: If long, rough exhaust air pipes, a lot of pipe bends or pipe diameters less than 150 mm are used, the air capacity will be less than optimum and there will be an increase in noise. Attach exhaust air pipe to the reducing connector.
Use only pipes or hoses made of non- combustible material for installation of the exhaust air duct. Seal both joints appropriately. The manufacturer of the extractor hoods is not responsible for complaints which can be attributed to planning and design of the pipework. 14