Cooker Hoods

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Failure to observe this minimum distance can cause damage to heatsensitive components in the cooker hood. indd 82-83 Retractable table-top hoods extractor modules APPLIANCE SELECTION Retractable table-top hood The new table-top hood design (width 60 or 90 cm) is built into the worktop behind the hob and can sink into the worktop. This does not, however, have an impact on the filter's efficiency. Using open windows as a means of ventilation and extraction tends to provide unreliable result as the level of ventilation is dependent on temperature and wind conditions. TIP The responsible chimney inspector must always be consulted when planning the use of an extraction hood in a room with a heating appliance dependent on ambient air. Island hoods Chimney hoods Wall hoods Ceiling extractors Worktop extractors/hob extractors Retractable table-top hoods Extractor modules Built-in hoods Conventional hoods 79 80 80 81 82 82 83 83 84 85 Appliance selection – at a glance 86 Index 88 Choosing the right cooker hood. 13 17:18 APPLIANCE SELECTION The technology of cooker hoods Most cooker hoods feature the same basic design. Backflow trap Extractor ducting Control Grease filter Operation Centrifugal fan Active carbon filter Inverter motor The use of inverter motors in cooker hoods is increasing. (Values may vary depending on shape and manufacturer) Calculation value for duct resistance SMS Swiss measuring system for kitchens / EURO Euro measuring system for kitchens Pipe – NW Ø mm 100 125 150 Airflow Air speed Rigid rate in the in the metal pipe pipe pipe 3 m /h m/sec Pa/m 100 3. This type of hood is particularly effective at cleaning the room air as it blows smoke and heat outside. indd 88-89 31, 61 65, 77 73, 86 12, 73, 86 36 28, 80 67, 86 N Low-energy houses Q Air cross-flow 35, 62 S Saturation displays Sound pressure level Sound power level Safety distances Airflow speeds T Telescopic flues Temperature and humidity sensors U Recirculation Recirculating mode Conventional hoods V Retractable table-top hoods Fleece filters W Wall hoods Heat Vapours Z Auxiliary fans Integrated hoods 71, 86 77 77 29 69, 86 80 75 16, 37 17, 22, 34 85 83 71 28, 81 12, 36 11 46 84 35 27 20, 28, 82 R Centrifugal fans 67, 86 Edge extraction 68, 86 Room climate 11 Ambient air heating appliances 59 89 13. These controls can be buttons, but the use of touch operation and slide controls is on the rise. This cold air will capture any existing vapours in the kitchen as it drops. – Extraction and recirculation modes are available. Depending on its construction, a mesh filter can consist of between 4 and 19 aluminium or stainless steel mats in a filter frame. (See page 32 and page 46) Note: – Structural factors may prevent use in some situations (need to break through a wall, lay an air duct) – Energy loss through heat extraction – Optimal exhaust air routing required for high airflow volumes – Legal regulations (e. 13 17:18 BASIC PRINCIPLES Need of a cooker hood in the kitchen The moisture and odours released during cooking pose a challenge with regard to ventilation and hygiene in the kitchen. This will result in condensation damage and mould (see chapter "Room climate", page 10). 13 17:18 BASIC PRINCIPLES Ventilation performance Cooker hoods have different performance capacities. German Ordinance on Combustion Equipment [FeuVO]) need to be observed Recirculation mode In recirculation mode, cooker hoods use a fan to suck in vapours, pass the vapours through a grease filter made from metal (permanent filter) or fleece (disposable filter) to remove the grease for hygiene reasons and then absorb the odours using an integrated active carbon filter