Installation instructions geoTHERM VWS 0020046310_0144• Turn the dial until the electroplan, "1", "2" or "3",matching your mains supply is selected (seeChap. 6.4):1 Unblocked mains supply2 = Dual circuit feed, heat pump tariff3 = Dual circuit feed, special tariff• Press the dial to confirm the selection.Adopting the settings• Turn the dial until the cursor > on the right of the"accept" menu entry points to NO.• Press the dial. The parameter will be activated anddisplayed in inverse video.• Turn the dial until "YES" appears.• Press the dial to confirm the selection.h Note!A complete description of the displays(Menus A1 to A9) for the initial commis-sioning can be found in Table 8.4• Make all the necessary settings and continue with theInstallation Assistant to the end.Installation completed A9Exit mode? >yes>Settable valuesFig. 7.5 Menu A9: Ending the installation• Only set "Exit mode? "to "YES" if you are sure thateverything has been set correctly.Once you have confirmed with "YES", the controllerswitches to the graphics display. The heat pump startsunder its autonomous control system.7.4 Bleeding the brine circuit.To bleed the brine circuit, activate the "Brine bleeding"menu point in Menu A7. The brine pump now alternatesbetween 50 minutes operation and 10 minutes standstill.Check whether the fluid level in the brine expansiontank has stabilised.• Let the brine pump continue to run, so that the airtrapped in the system can be collected in the expansi-on tank. The level of the fluid in the expansion tankfalls as a result of the discharge of air and must betopped up again as described in Chap. 5.2.• Open the expansion relief valve to allow any possibleoverpressure to discharge. The tank must be filled to2/3 full with fluid.7.5 Bleeding the heating circuit• If manual switching of the heating circuit pump andthe 3-way valve is necessary to bleed the heating cir-cuit, perform this via Menu A5/A6 (see Table 8.4).7.6 Handing the system over to the operator• Instruct the operator of the system in the handlingand function of all the equipment.• Hand over all the instruction manuals and documentsfor the appliance to the operator for safe keeping.• Tell the operator to keep the manuals nearby the con-troller. Inform the owner of the need for regular in-spection of the system.7 Start-up