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 20 page image

20 Operating instructions ecoTEC plus 0020124810_FT1b5 Energy saving tipsInstallation of a weather compensatorWeather compensators regulate the heating flowtemperature with reference to the outside temperature.No more heat is generated than is currently required.The designated heating flow temperature for thecorresponding outside temperature must be set on theweather compensator. This setting must not be greaterthan that required by the design of the heating system.The correct setting is normally undertaken by theheating engineer. The required heating and setbackphases (e.g. at night) are automatically switched on/offusing integrated timer programmes. Weathercompensators combined with thermostatic radiatorvalves are the most economical form of heatingregulation.Energy-saving mode of the heating systemReduce the room temperature at night and in yourabsence. This is most easily and reliably achieved usingcontrollers with timer programmes that can be selectedaccording to individual requirements. At such times, setthe room temperature approx. 5 °C lower than duringfull heating times. Reduction of more than 5 °C bringsno additional energy saving, because then increasedheating capacities would be needed for the next fullheating period. Only for longer absences, e.g. holidays,is it worthwhile to further lower the temperatures.However, in winter, make sure that there is adequatefrost protection.Room temperatureSet the room temperature only as high as would beenough for your comfort level. Each extra degree wouldmean an increased energy consumption of about 6%.Adjust the room temperature according to the use of thespecific room. For example, normally, bedrooms orseldom used rooms are heated to 20 °C.Setting the operating modeIn warmer seasons, when the apartment needs noheating, turn the heating to summer mode. The heatingmode is then shut off; however, the boiler or the heatingsystem remains ready for operation for hot waterproduction.Uniform heatingOften, in an apartment with central heating, only oneroom is heated. Adjacent rooms are also heated withoutregulation by the enclosing surfaces of the room, i.e.walls, doors, windows, roofs and floors, which meansthat an unwanted loss of thermal energy occurs. In thesekind of operating conditions the power of the radiator inthis heated room is obviously insufficient. Consequently,the room cannot be heated adequately and anuncomfortable feeling of coolness prevails (the sameeffect is produced when doors between heated andunheated or partially heated rooms remain open).This is false economy: The heating is in operation andstill the room temperature is not comfortably warm.Greater heating comfort and a more practical operatingmode is achieved when all rooms in an apartment areheated uniformly and in accordance to their usage. Thebuilding structure can also suffer if components of thebuilding are unheated or only inadequately heated.Thermostatic radiator valves and room thermostatsNowadays, all radiators should be fitted withthermostatic radiator valves as a matter of course. Theymaintain the set room temperature precisely. You canadjust the room temperature to suit your individualrequirements and ensure effective operation of yourheating system using thermostatic radiator valves incombination with a room thermostat (or weathercompensator). In the room where the room thermostatis located, all the radiator valves should be fully opened,as otherwise the two regulating systems will workagainst each other and the regulation quality can beaffected. And besides, the following user behaviour canfrequently be observed: As soon as the room becomestoo hot the operator turns the thermostatic radiatorvalve off (or specifies a lower temperature at the roomthermostat). If after a period of time the user feels coldand opens the thermostatic radiator valve again. Thisprocedure is not only inconvenient, it is also completelyunnecessary as a correctly functioning thermostaticvalve does this automatically: If the room temperaturerises above the value set on the sensor head, thethermostatic radiator valve shuts off automatically,when the temperature drops below the defined value,it opens again.Do not cover controllersDo not cover your controllers with furniture, drapes orsimilar objects. The room air must circulate unhindered.Covered thermostatic radiator valves can be equippedwith remote sensors and thus still work.Ventilating residential spacesDuring the heating period, open windows only forventilation and not for temperature regulation. A brief,forced change of air is more effective and energy-savingthan windows that are kept open for a long time. Werecommend that the windows be opened fully for a shortperiod. During ventilation, close all thermostatic radiatorvalves in the room or set the room thermostat tominimum temperature. These measures guarantee asufficient exchange of air and avoid unnecessary coolingand loss of energy (e.g. due to unwanted activation ofthe heating system during ventilation).Appropriate hot water temperatureAnyone wanting to wash their hands under warm waterdoes not want to have their fingers scalded. Thefollowing applies both for boilers with integral hot waterproduction and for boilers with hot water cylindersconnected: The warm water should only be heated up to5 Energy saving tips