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Download Ethos 45SD Technical Documentation
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Page 8 3.7 Class B23 C13 C33 C43 C53 Classification according to evacuation of combustion products System description • Non-room sealed application; flue connected to outside but combustion air is being drawn directly from room where boiler is installed. • Room sealed premix appliance with horizontal outlet • Air intake and flue gas discharge through concentric exterior wall terminal • Room sealed premix appliance with vertical outlet terminal • Air intake and flue gas discharge through concentric exterior roof terminal • Room sealed premix appliance with collective supply and discharge • Comments: • Appliance complies with Class C • Max. back pressure 1mbar (100Pa) • • • Type exterior wall duct Max. resistance 150 Pa Ducts sloped to drain toward boiler (1cm/m) • • Type roof duct Max. resistance 150Pa • • • Room sealed premix appliance with separate • supply from exterior wall and separate discharge through roof • • • • C63 • C83 • Room sealed premix appliance with separate • approved and marketed system • Room sealed premix appliance with separate • supply from exterior wall and collective • discharge • Vertical terminal Max. resistance 150Pa Ducts sloped to drain toward boiler (1cm/m) Collective discharge with under pressure Air terminal not provided by boiler manufacturer Roof terminal not provided by boiler manufacturer Max. resistance 150Pa Ducts sloped to drain toward boiler (1cm/m) Supply and discharge to be installed on the same side of the building Only connect to UK approved discharge material Max resistance 150Pa Type exterior wall duct not provided Max. resistance 150Pa Ducts sloped to drain toward boiler (1cm/m) Horizontal terminaL
