Daikin GCU compact Series Installation And Operating Instructions Manual

Contents

Daikin GCU compact Series Installation And Operating Instructions Manual Manual pdf 65 page image

11 Taking out of operationInstallation and operating instructions65Gas Combi UnitFloor-standing gas condensing boiler with integrated heat storage008.1543899_02 – 04/2019 – ENFig. 11-3 Completing the combined filling and draining filling con-nectionFig. 11-4 Screwing the combined filling and draining filling connec-tion into the filling and draining connection6 Open the fill/drain cock on the KFE filling connection and drainthe water content of the storage tank.Only with solar system1 Adjust the valve insert on the connection bracket so that the pathto the blind plug is blocked off (Fig. 11-5).2 Place a suitable collecting tray and remove the blind plug fromthe connection bracket (Fig. 11-5).Fig. 11-5 Shut off the valve insert, remove the blind plug from theconnection bracket3 Insert the combined filling and draining filling connection inthe connection bracket and secure with the holding clamp(Fig. 11-6).Fig. 11-6 Installing the combined filling and draining filling connec-tion in the connection bracket4 Open the fill/drain cock on the KFE filling connection.5 Adjust the valve insert on the connection bracket so that the pathto the drain hose is open (see also Fig. 11-5) and drain the watercontent of the storage tank.11.1.2 Draining the heating circuit and hot watercircuit1 Switch off the main switch and secure against restarting.2 Close the gas stop valve.3 Connect the drain hose to the combined filling and draining valveof the GCU compact.4 Open the combined filling and draining valve on the GCU com-pact.5 Drain the heating and hot water circuits.6 Disconnect the heating inflow and return flow as well as the coldwater inflow and the hot water outflow from the GCU compact.7 Remove the thermal insulation from the hydraulic group(see Chap. 4.4.3).8 Disconnect the hydraulic group/heat cell connection (pull out thesecuring clip), remove the 3UV DHW 3-way valve and unscrewthe heat exchanger for storage tank charging.9 Remove the hydraulic group.10 Connect the drain hose to the cold water inlet and hot water out-let as well as the heat exchanger for storage tank charging sothat the hose opening is leakproof above the ground.11 Allow the individual heat exchangers to run empty one after theother based on the suction lifter method.12 Put the hydraulic group back on again and re-attach the thermalinsulation (steps 7 to 9 in reverse order).