Vaillant geoTHERM VWS Operating Manual

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Vaillant geoTHERM VWS Operating Manual Manual pdf 7 page image

7Operating Manual geoTHERM VWS 0020045200_00Fig. 3.1 Filling level of the brine expansion tankIt is normal for the filling level of the brine to fall a littlein the first month after the start-up of the system. Thefilling level can also vary depending on the temperatureof the heat source. However it should never sink so farthat it is no longer visible in the expansion tank.a Caution!Risk of damage!The filling of the brine circuit in yourheat pump installation may only beundertaken by authorised specialists.Check the filling level of the brine circuitat regular intervals and inform yourexpert technician company if the fillinglevel in the brine expansion tank is toolow.3.4.3 Accumulation of condensate (condensa-tion water)The evaporator, the brine pumps and the pipes in theheat source circuit, as well as some components in thecoolant circuit, are insulated in the interior of the heatpump, so that no condensate can accumulate. If conden-sate should ever accumulate in small amounts this willbe collected by the condensate basin. The condensatebasin is located on the inside, in the lower part of theheat pump. As a result of the heat generated inside theheat pump, the condensate in the condensate pan eva-porates. Small amounts of the accumulating condensatecan be drained off under the heat pump. In smallamounts, accumulating condensate should not be seenas a fault in the heat pump.3.5 Energy saving tipsBelow you will find important tips to help you operateyour heat pump system in an energy and cost-savingmanner.3.5.1 General energy saving tipsYou can even save energy by your general behaviour:— Ventilate correctly:Do not leave windows or French windows tilted open,but rather open the windows wide 3 or 4 times a dayfor 15 minutes and turn down the thermostatic valvesor room thermostats while ventilating.— Do not block the radiators to ensure that heated aircan circulate in the room.— Use a ventilation system with heat recovery.The optimum exchange of air in the building is alwaysguaranteed by the use of a ventilation system withheat recovery (windows no longer need to be openedfor ventilation purposes). If necessary, the air flow canbe matched to your individual requirements with theventilation unit's remote control.— Check that windows and doors are airtight: Keep shut-ters and blinds closed at night, so that as little heat aspossible is lost.— If a VR 90 remote control unit is installed as an acces-sory, do not obstruct it with furniture, etc., so that itcan measure the circulating room air unhindered.— Think when using water, for example, take a showerinstead of a bath, promptly renew the seals on drip-ping taps.3.5.2 Economising by the correct use of the controlsystemFurther economies can be made by the correct use ofthe control system on your heat pump.The control of the heat pump helps you to make savingsby:— The correct selection of the heating flow temperature:Your heat pump controls the heating flow tempera-ture depending on the room temperature you haveset. Therefore select a room temperature that is justsufficient for your comfort, for example 20 °C. Everydegree over and above that means an increase in en-ergy consumption of around 6 % per annum.— For floor heating use heating curves of < 0.4. For radi-ator heating, we recommend that they are laid out tomanage with a maximum flow temperature of 50 °Cat the lowest outside temperature; this correspondsto heating curves of < 0.7.— An appropriate setting of the hot water temperature:Only heat hot water as much as is required for con-sumption. Any further heating results in unnecessarypower consumption, and hot water temperatures ofNotes on operation 3