Vaillant ecoMAX pro Instructions For Use Installation And Servicing

Also see for ecoMAX pro SERIES: Instructions for use installation and servicing Instructions for use installation and servicing

Vaillant ecoMAX pro Instructions For Use Installation And Servicing Manual pdf 22 page image

14 ServicingInstructions for Installation and Servicing ecoMAX pro2214 Servicing14.1 GeneralMeasurement of the products of combustion can beachieved by connection of a probe to the combustionanalyser test point on the flue adaptor, see Fig. 14.4.Refer to section 14.7 and data table.Before commencing with a service or replacement ofparts the boiler should be isolated from the electricalsupply and the gas supply should be turned off at thegas isolation valve, see Fig. 14.2.All routine servicing requirements can be achieved bythe removal of the front panel, inner panel and chassisfront only.Remove the two screws on the underside of the frontpanel and lift off. Undo the two screws on the front ofinner panel and lift off, see Fig. 14.7.To remove chassis front, refer to section 14.3.Unless stated otherwise any part removed duringservicing should be replaced in the reverse order toremoval.Servicing should always include the removal of anydebris from the condensate pipe and siphon.After completing any servicing of gas carryingcomponents, ALWAYS test for gas soundness and carryout a functional test of the controls.14.2 Spark ElectrodeDisconnect the ignition lead and earth lead from theignitor unit and two securing screws at the sparkelectrode. Withdraw the spark electrode carefully fromthe combustion chamber, see Fig. 14.1.Inspect the tips for damage.Clean away any debris and check the spark gap is 3.5 -4.5 mm.Check the electrode gasket for signs of damage andreplace if necessary.Fig. 14.1SECURINGSCREW2 OFFSPARK GAP HEATEXCHANGERGASKETSPARKELECTRODE3.5 to 4.5mmEARTHLEAD14.3 BurnerRefer to Figs. 14.2, 14.3, 14.4 and 14.5.Isolate the gas supply at the gas service cock.Disconnect the gas supply at the gas service cock.Note!Do not disconnect at the gas valve.Remove the two gas pipe bracket securing screws fromunderside of inner case, see Fig. 14.2.Drop down the control panel into the service position.Remove the four screws from the chassis front, see Fig.14.3.Remove the chassis front by pulling it out at the topfrom its retaining slots.Note!When replacing chassis front panel ensure thebottom fits behind lip.Disconnect the gas control valve plug at the gas controlvalve, see Fig. 14.4.Disconnect the electrical leads from the fan.Remove the five combustion chamber front securingnuts, see Fig. 14.5.Fig. 14.2Fig. 14.3CONTROLPANELSERVICEPOSITIONSECURINGSCREW(4 OFF)CHASSISFRONTCONDENSETRAPGAS SERVICECOCKGASSUPPLY PIPE INGAS PIPE BRACKETSECURING SCREWSEALINGGROMMETUNION NUT