Vaillant ecoTEC pro Installation And Maintenance Instructions Manual

Also see for ecoTEC pro: Installation and maintenance instructions Instructions for use Instructions for installation and servicing Operating instructions Installation and maintenance instructions

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Vaillant ecoTEC pro Installation And Maintenance Instructions Manual Manual pdf 65 page image

GlossaryInstallation and maintenance instructions ecoTEC pro 0020129672_03 651818 GlossaryAir/flue gas ductAn air/flue gas duct is a line system with two separate flowchannels. The flue gas is routed into separate chambers atthe same time as the required combustion air is pumped tothe boiler. The air/flue gas duct can be designed as a con-centric or adjacent double flue gas pipe (the flue gas chan-nel is sealed from the air channel). Floor-standing boilersand gas-fired wall-hung boilers can be operated as room-sealed through the air/flue gas duct. As a result, boilers canbe installed in new buildings that do not offer sufficientcombustion air for open-flued heaters due to their airtightconstruction.Burner anti-cycling timeThe burner is electronically locked for a specific time aftereach time it is switched off ("restart interlock") to avoid fre-quent switching on and off of the burner (energy losses)and to extend the working life of the boiler.The burner anti-cycling time is only activated for the heat-ing mode.Hot water handling is not affected if burner anti-cyclingtime is running.Calorific valueUnlike the heating value, the calorific value of a fueldescribes the total useable heat during combustion, basedon the quantity of fuel used, including the condensationheat in the steam.The energy contained in steam can also be used if thesteam liquefies on cooling.Compact thermal moduleThe compact thermal module is an assembly of Vaillantcondensing units that consists of the following four maincomponents in the ecoTEC pro: speed-regulated fan, gas-airmixture fitting, gas supply (mixture pipe) for the premixburner and premix burnerCondensing technologyTechnology which maximises the use of the calorific valueof the fuel. The flue gas is cooled until the water vapourthat it contains condenses. The condensation heat that thisreleases can also be used.In particular, the flue gas losses are greatly reduced. Thelosses from conduction of heat and radiation are alsoreduced by the lower system temperatures. The entire heat-ing installation should therefore be designed for low systemtemperatures (flow/return temperature) for the effectiveuse of the calorific value. The level of efficiency attainablefor boilers is always given based on the heating value of thegas. Due to the additional condensation heat used, the cal-culated values can exceed 100 %.Digital information and Analysis system (DIA)The Vaillant ecoTEC pro boiler is fitted with a digital infor-mation and analysis system (DIA). If additional settings arerequired, which have not been configured using the installa-tion assistant, you can view and modify further parametersusing the DIA.eBUSeBUS is an abbreviation for energyBUS. The eBUS is a spe-cial bus used in heating technology, which assists the com-munication between intelligent components in the heatingtechnology. In a Vaillant system, up to eight different heat-ers can be connected via the eBUS.The eBUS communications protocol simplifies the control-related linking of different system components within aheating installation. It provides particular flexibility for ret-rofitting and expanding the system. This simplifies theinstallation of boiler cascades or the subsequent addition ofcomponents such as solar hot water generation.The eBUS provides extended facilities for connecting con-trollers.Multi-functional moduleThe multi-functional module is an accessory that controlsadditional functions or components in combination withVaillant boilers with eBUS electronics. It also allows you toselect and control 2 in 7, e. g. circulation pump, externalheating pump, external solenoid valve or response from theflue non-return flap.