6 InstallationInstallation and operation manual21EHY2KOMB28+32AADaikin Altherma hybrid monobloc – Gas boiler module4P538953-1 – 2018.06Terminal position Minimumdistance (mm)S From another roof terminal 600- From an external boundary. Note: If theterminal is facing a boundary, it isrecommended that an anti-plume kit befitted.TT1T2Terminals adjacent to windows oropenings on pitched and flat roofs: Theflue should NOT penetrate this area. 2000600NOTICEThe boiler manufacturer cannot be held responsible foratmospheric conditions when siting flue terminals.CAUTIONOnce the flue system has been installed and the appliancecommissioned, the installer should observe the plumedirection. Particular attention should be drawn to plumevapour reentering the gas boiler via the air intake. If thisoccurs, it is highly possible the flue is fitted with a negativepressure area and therefore a plume management kitMUST be fitted.6.8.7 Insulation of the gas exhaust and airintakeCondensation may occur on the outside of the pipe material whenthe material temperature is low and the environment temperature ishigh with a high humidity. Use 10 mm damp-proof insulation materialwhen there is a risk of condensation.6.8.8 Fitting a horizontal flue systemThe 60/100 mm horizontal flue system may be extended up to amaximum length as specified in the table indicating the maximumpipe lengths. Calculate the equivalent length according to thespecifications in this manual.CAUTIONRead the installation manuals of the field supplied parts.The horizontal flue MUST be installed under a 3° fall towards theboiler (50 mm per metre) and MUST be supported with a minimumof 1 bracket at each meter length. Best recommended position of thebracket is just before the joint.INFORMATIONFlexible flue gas lines may NOT be used in horizontalconnection sections.6.8.9 Fitting a vertical flue systemA vertical 60/100 mm flue kit is also available. By using additionalcomponents available from your boiler supplier, the kit can beextended up to a maximum length as specified in the table indicatingthe maximum pipe lengths (excluding the initial boiler connection).CAUTIONRead the installation manuals of the field supplied parts.6.8.10 Plume management kitSee the local and national regulations.Especially for UK:The plume management kit comprises of a 710 mm horizontalsection elbow to connect the 500 mm vertical condensing tube,which has a horizontal or vertical terminal dependant on yourrequirements. The maximum length of the horizontal flue includingthe terminal but excluding the initial elbow from the boiler and500 mm vertical condensing tube is 7 m.NOTICEFor each additional 90° elbow used the maximum fluelength MUST be reduced by 1.5 m whilst the use of 2× 45°bends warrants a reduction of 2 m.The horizontal part of the flue MUST be installed under a 3° falltowards the boiler (5 mm per m) and MUST be supported with aminimum of 1 bracket at each 1 m length. Best recommendedposition of the bracket is just before the joint.CAUTION▪ Sealing rings should ONLY be moisturized with waterbefore use. Do NOT use soap or other detergents.▪ When installing flues in voids, make sure that they areconnected and fixed correctly. If in an existing situationa visual inspection is NOT possible, the boiler mustNOT be commissioned and remain disconnected fromthe gas supply until suitable access has been realised.▪ Make sure to follow the manufacturer’s instructionsregarding maximum length of the flue system, theappropriate flue material, correct jointing methods andthe maximum distance between flue support.▪ Make sure that all joints and seams are gastight andwatertight.▪ Make sure that the flue system has a uniform gradientback to the boiler.