Vaillant ecoTEC exclusive 832 Installation And Maintenance Instructions Manual

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

Contents

23ecoTEC exclusive installation and maintenance instructions / 0020017768_04a Caution!Risk of material damage if the heating water istreated with unsuitable frost or corrosion pro-tection agents!Frost and corrosion protection agents maycause changes in the seals, noises during heat-ing and possibly subsequent damage.Do not use any unsuitable frost or corrosionprotection agents.6.1.1 Filling and venting from the heating side1Fig. 6.1 Auto air ventKey1 Auto air ventA water pressure/filling pressure between 1.0 and 2.0bar is required for proper functioning of the boiler.If the heating installation operates over several floors,it may be necessary to have higher water levels on thepressure gauge.• Rotate the cap of the auto air vent (1) on the pumpa couple of times to loosen it (the appliance isventilated automatically by the auto air vent duringcontinuous operation).• Open all radiator valves in the installation.barbar1 234Fig. 6.2 Check the filling pressure of the heating installationh Note!The ecoTEC units are supplied with a pressuregauge and a digital pressure display (2). Usingthe pressure gauge you can perform a quickcheck whether the filling pressure is within theprescribed range or not, even when the unit isswitched off. With the unit switched on, youcan read off the exact pressure by pushing theminus button „-“.• Turn the rotary knobs (1) and (4) to the left hand stopand switch the unit on using the main switch (3).h Note!Use the test programme P.6 for filling theheating system: The priority changeover valvemoves to the central position, the heatingpump is not running and the unit does not gointo heating mode, see Chapter 9.2.h Note!To avoid running the system with too little waterand thus to prevent damage, your appliance hasa water pressure sensor. This signals the lowpressure level if the level falls below 0.6 bar bythe water pressure value in the display flashing.If the water pressure falls below 0.3 bar the unitswitches off. The error message F.22 appears inthe display. Fill the system up with water beforeyou start up the appliance again.Filling the heating system:21Fig. 6.3 Filling the heating systemProceed as follows to fill the system:• Open all radiator valves on the system.• Ensure that the boiler CH service valves are open.• Check the flexible filling loop is connected.• Locate the filling valve handle (1) and open.• Locate the filling valve handle (2) and open to allowwater to enter the system. Starting with the lowestradiator, open the radiator air release until water(clear of bubbles) is emitted.Start-up 6