Vaillant geotherm exclusive Installation Instructions Manual

Also see for geoTHERM exclusive: Operating manual

Contents

Vaillant geotherm exclusive Installation Instructions Manual Manual pdf 30 page image

Installation instructions for geoTHERM exclusive VWS 0020051614_0030Fig. 5.6 pushing in the valve pin• Now, push in the valve pin at approx. 50 % of thespring deflexion and hold onto this position for ap-prox. 30 seconds. During this time, brine flows into thetwo diverging hydraulic pipesIn order to overcome the spring pressure, a fixed object,for example, a log of wood is helpful.• Release the pin after about 30 seconds.• Reattach the motor housing on the brine mixing valve.• Reconnect the power cable that was disconnected be-fore to the motor housing of the brine mixing valve.a Caution!Risk of damage!Do not adjust the brine mixing valve po-sition manually via the motor head be-cause after unscrewing and reinstallingit, this does not reposition automaticallyinto the initial condition!• Open the stop valve (see fig. 5.3, item. 57), so that theair between the stop valves (61) and (62) can be dis-charged.• Close the stop valve (61) and pressurise the brine cir-cuit using the filling pump (67). Take care that thepressure does not exceed 3 bar.• Now, close the stop valve (62) as well.• Switch off the filling pump (67) and remove thecharging and discharging hose of the brine circuit• Open the expansion relief valve (60) to allow any pos-sible overpressure to discharge. The brine expansiontank (59) must be filled 2/3 with fluid. Make sure thatvalve (61) is closed.• Further ventilation takes place after the assembly ofthe cladding sections and the start up of the heatpump (see Chap. 7.4)Possible residues of the brine fluid are preserved in asuitable vessel (e.g. plastic canister for a later refilling(and conveyed to the customer)Check the filling level of the brine fluida Caution!Risk of damage!The filling level is correct when the brineexpansion tank is 2/3 full. The installa-tion can be damaged if the filling level istoo high.• Top up the brine fluid when the filling level has fallenso low that it is no longer visible in the expansiontank.1 2Fig. 5.7 Fill level of the brine expansion tankThe filling level of the brine fluid can fall a little in thefirst month following commissioning of the system; thisis quite normal. The filling level can also vary dependingon the temperature of the heat source, but under no cir-cumstances should it fall so far that it is no longer visi-ble in the expansion tank.5.3 Filling the DHW ciruita Caution!Risk of damage!Do not manually open the temperatureand pressure relief valve or expansionrelif valve for venting purposes (any for-eign matter in the pipwork may causedamage to the valve seats).• Ensure that the drain valve is closed.• Open all hot and cold water taps.• Open the mains water supply and continue filling untilwater runs freely out from the taps.• Close the hot and cold water taps and check for anyleaks.• Open the hot water taps at the opposite ends of thesystem and allow water to discharge to drain for atleast 5 minutes5 Filling the heating and heat source systems