Vaillant ecoTEC plus 937 Instructions And Maintenance Instructions

Also see for ecoTEC plus 937: Operating manual Instructions for installation and servicing Operating manual

Contents

Contents3Installation and maintenance instructions ecoTEC plus 0020031552_036 Commissioning Part II: Functionalchecks ............................................................366.1 Functional checks ................................................ 366.1.1 Method of procedure .......................................... 366.1.2 Heating ................................................................... 366.1.3 Hot water operation ............................................ 366.1.4 Storage tank charging ........................................ 366.1.5 Subsequent flushing through of theheating system ("hot") ........................................376.2 Handing over the boiler to the owner ............ 386.3 Vaillant warranty.................................................. 386.3.1 Two years warranty ............................................ 386.3.2 Registering with us .............................................. 386.3.3 First aid ................................................................... 387 Inspection and maintenance .......................397.1 First inspection ..................................................... 397.1.1 Safety instructions .............................................. 397.1.2 Maintenance .......................................................... 397.1.3 Overview of inspection and maintenancetasks ........................................................................407.1.4 Function check of the combination boiler ...... 417.2 Maintenance of the thermo-compactmodule ..................................................................... 417.2.1 Remonving the thermo-compact module ....... 417.2.2 Cleaning the integral condensationheat-exchanger ..................................................... 427.2.3 Checking the burner ............................................ 427.2.4 Fitting the thermo-compact module ............... 427.3 Cleaning the condensate siphon ...................... 437.4 Cleaning strainer in cold water supply ........... 437.5 Checking filling pressure of the expansionvessel of the combination boiler ...................... 447.6 Checking filling pressure of the expansionvessel of the shift load storage tank .............. 447.7 Re-commissioning the combination boiler .... 447.8 Test mode .............................................................. 458 Troubleshooting ........................................... 468.1 Logical fault finding procedure ........................ 468.1.1 Status codes .......................................................... 468.1.2 Diagnostic codes .................................................. 478.1.3 Error codes ............................................................ 498.1.4 Fault memory ........................................................ 498.2 Test programmes .................................................. 518.3 Resetting the parameters to factorysettings .................................................................... 519 Replacing components ................................ 529.1 Safety instructions .............................................. 529.2 Replacing the burner .......................................... 529.3 Replacing the fan or gas valve ......................... 529.4 Replacing the expansion vessel ....................... 539.5 Replacing the primary heat exchanger .......... 539.6 Replacing the expansion vessel of theshift load storage tank........................................ 549.7 Replacing the storage tank pump of theshift load storage tank........................................ 559.8 Replacing the aqua sensor ................................ 559.9 Replacing the electronics on the shiftload storage tank ................................................. 569.10 Replacing the electronics and the displayon the combination boiler .................................. 569.11 Checking and setting the CO2 content, ifrequired (air ratio adjustment)......................... 5710 Recycling and disposal ................................ 5810.1 Unit .......................................................................... 5810.2 Packaging ............................................................... 5811 Vaillant service ............................................ 58EC declaration of conformity .................................59