Vaillant ecoTEC exclusive 832 Installation And Maintenance Instructions Manual

Also see for ecoTEC exclusive 832: Installation and maintenance instructions Installation and maintenance instructions

Contents

27ecoTEC exclusive installation and maintenance instructions / 0020017768_04Fig. 6.7 Function check6.3.1 Heating• Switch on the appliance.• Make sure that there is a heat demand for heating(set the room thermostat or the weather-controlledcontroller to "demand").• Press "i" to activate the status indicator.Fig. 6.8 Display during heating modeAs soon as there is a heat demand, the appliance goesthrough the status displays "S. 1" to "S. 3", until the ap-pliance is running properly in normal operation and thedisplay "S. 4" appears.6.3.2 Hot water function• Switch on the appliance.• Turn on a hot water tap fully.• Press "i" to activate the status indicator.When the hot water function is working correctly thedisplay shows "S.14".Fig. 6.9 Display during hot water preparation6.3.3 Subsequent flushing through of the heatingsystem ("hot")• Allow the appliance to run until both the applianceand the heating system have reached their operatingtemperature.• Check the heating system for leaks.• Connect a hose to the drain valve which is located atthe lowest position in the heating system.• Shut off the appliance, open the drain valve and allvent valves on the radiators and allow the water toflow out of the heating system and the boiler quicklyand fully.• Close the drain valve.• Re-fill the heating system with water (see Chapter 6.1.1).• Drain water out of the system until a system pressureof 1.0 bar is reached. (The ideal measured value on thepressure gauge is 0.5 bar plus an extra amount corre-sponding to the highest point of the system above theboiler. A height of 10 m corresponds to a pressure in-crease on the pressure gauge of around1 bar. The pressure must not be less than 1 bar on anyinstallation.)If the system is to be protected by an inhibitor, itshould be added at this stage in accordance with themanufacturer's instructions.Further information can be obtained from Sentinel,Betz Dearborn Ltd., Tel.: 0151 420 9595, or from Fern-ox, Alpha–Fry technologies, Tel.: 0870 8700362.• Re-mount the enclosure of the boiler.• Attach the bottom cover to the boiler by sliding thefront edge of the cover into the lip at the bottom frontedge of the appliance chassis.• Carefully push the rear of the bottom cover upwardsuntil the spring retaining clips engage at the side ofthe appliance. It may be necessary to adapt the bot-tom cover by removing the easy break sections.Start-up 6