Vaillant ecoTEC plus Operating Instructions Manual

Also see for ecoTEC plus SERIES: Instructions for use Instructions for use Instructions for installation and servicing Instructions for use Instructions for installation and servicing

Vaillant ecoTEC plus Operating Instructions Manual Manual pdf 32 page image

Glossary32 Operating instructions ecoTEC plus 0020116701_001212 GlossaryAir/flue gas ductThe air/flue gas duct consists of all components that routecombustion air to the boiler or exhaust gas from the boiler.BurnerThe burner on a gas-fired condensing boiler is the compo-nent on whose surface the gas/air mix is control-burnt.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. Condensing boilers use this additionalcondensation heat to achieve much higher efficiency levelsthan conventional boilers.ControllerThe controller is the interface to the boiler and can be usedto adjust the room temperature, hot water temperature,heating times or night-time temperature reduction.A distinction is made between room thermostat, weathercompensator and solar controller.Cylinder chargingCylinder charging mode refers to the process for heating upthe cylinder.See also hot water generation.eBUSThe abbreviation eBUS is short for energyBUS.The eBUS is a special cable system used in the heatingtechnology field, which is used for communication betweenthe heating technology components (e.g. controller, boiler,vrnetDIALOG).Frost protectionThe frost protection function protects your heating systemand dwelling from frost damage. If the heating flow temper-ature falls below 5 °C when the on/off switch is on, theboiler comes into operation and heats the heat generationcircuit to approx. 30 °C.Heating flow temperatureYour boiler heats water which is pumped through yourheating system. The temperature of this hot water as itleaves the boiler is referred to as the heating flow tempera-ture.Hot water production in VU boilersYour boiler heats the water in the domestic hot water cylin-der to the selected target temperature. If the temperaturein the domestic hot water cylinder falls by a specificamount, the water is heated up again to the target temper-ature.Hot water production in VUW boilersIn the VUW boiler, the water is heated directly in thethrough-flow principle.Comfort mode immediately supplies you with hot water atthe required temperature, without you having to wait forthe water to heat up. In order to do this, the hot water heatexchanger is kept at a preselected temperature level.LegionellaLegionella are water-borne bacteria which can quickly prop-agate and cause serious lung diseases. Legionella bacteriaoccur wherever heated water provides the optimum condi-tions for multiplication. Temporarily heating the water toabove 60 °C kills off the legionella.Room thermostatA room thermostat continuously measures the room tem-perature and compares it with the room temperature youhave set (target room temperature). This allows the heatingsystem to maintain a constant set temperature in yourroom.In addition, you can enter individual heating times. The tar-get room temperature and the heating times set by youcontrol the operation of your boiler, the power of which isadapted automatically to the respective heat demand.Weather compensatorA weather compensator is a controller that controls theheating flow temperature of the heating system as a func-tion of the measured outside temperature.On the weather compensator you can also enter individualheating times. The outside temperatures measured and theheating times set control the operation of the burner, theoutput of which is adjusted automatically to the respectiveheat demand.