Harry Taylor HT2000 Installation & Servicing Manual
Also see for HT2000: ManualManualInstallation & servicing manualManualInstallation, service and user manual
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Contents
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13inspection covers are included. Thematerials from which the flue is constructedmust be non-combustible, resistant tointernal and external corrosion, and becapable of withstanding the stresses andloadings associated with normal use.When designing the flue system theprevention of the formation and entrapmentof condensation must be a keyconsideration.Twin wall or insulated systems arerecommended as they tend to inhibit theformation of condensates.Where condensation is unavoidable trapsshould be included to encourage thecondensates to flow freely to a point fromwhich they may be released, preferably intoa gully. The condensate pipe from the flue tothe disposal point must be made fromcorrosion resistant pipe of not less than25mm internal diameter.If the flue passes through a wall, ceiling, orroof made from combustible material then ithas to be sleeved so as to provide aminimum of a 25 mm void between theexterior of the flue and the internal wall ofthe sleeve. The maximum permittedtemperature of any adjacent combustiblematerial is 65 oC.The position of the flue and its terminalshould be such that it does not impair thecombustion process.It should terminate in an exposed positionso as to allow the escape and dissipation offlue gases without risk of their re-enteringthe property through windows, ventilationports, etc,.The flue should extend to at least 1m abovethe height of any object within 3,5m of theterminal.Flue terminals should be fitted on all flueswith a diameter of 200 mm or less. Theterminal must be of the approved type, andhave outlet grilles on all sides giving a totalfree area of at least double that of the flue.CautionIt is imperative that the flue should beproperly sealed where it passes through theroof, this can best be achieved by using theapproved method of roof flashing plate andcravat.NoteIt should be noted that claims made underwarranty and attributed to the ingress ofwater may not be considered especially if anapproved method of sealing has not beenused, or if the design of the flue has notmade provision for possible condensationproblems.2.7 Flue InstallationAn integral flue spigot is fitted to all CabinetHeaters thereby allowing the flue to connectdirectly to the heater. The design of the fluemust ensure that it can be disconnected toallow for cleaning and servicing,furthermore, all of the flue section jointsockets must face upwards, and the sealbetween the sections achieved throughmechanical joints or through the use ofapproved caulking string and grout. It isstrongly advised that BS 5854 and BS 5440parts 1 and 2 are referred to, see also figs 2-12.Where condensation is likely to be aproblem provision should be madepreferably at the design stage (see section2.5). |
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