Vaillant ecoTEC SERIES Instructions For Installation And Servicing

Also see for ecoTEC plus 612: Instructions for use Installation and maintenance instructions Instructions for use Installation and maintenance manual Instructions for installation and servicing

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Vaillant ecoTEC SERIES Instructions For Installation And Servicing Manual pdf 38 page image

38 Instructions for installation and servicing ecoTEC 839592_125.10 Refitting the case12Fig. 5.9 Refitting the case• Hook the top of the front casing over the lip on thetop of the boiler chassis and push the bottom of thefront casing into place.• Ensure the spring retaining clips (2) engage correctly.• Tighten case securing screw (1).5.11 Adjusting the central heating output(range rating)The boilers are fully modulating for central heating, andit is therefore not necessary to range rate the boiler.However, if desired, it is possible to range rate theboiler, as follows:• Press the “i” and “+” buttons simultaneously.• Keep the “+” button pressed until “d.0” is displayed.NoteThe display runs from “d.0” to “d.99” beforerestarting at “d.0”.• Press the “i” button. The “=” symbol is displayed.The part load setting is now displayed in kW.• Use the “+” and “–” buttons to increase or decreasethe value in steps of 1 kW. The displayed value willflash while the adjustment procedure is being carriedout. The available ranges of settings are given inTable 5.3.• Push the “i” button for about five seconds, or until thedisplay stops flashing. The value is now saved tomemory. The display will now return to its normalstate (current heating system flow temperature, e.g.45 °C).• Press the “i” and “+” buttons simultaneously to canceladjustment mode.Adjustment mode is also cancelled if no button isoperated for a period of 4 minutes.Appliance Heating output in kWecoTEC plus 612 5 – 12ecoTEC plus 615 5 – 15ecoTEC plus 618 7 – 18ecoTEC plus 624 9 – 24ecoTEC plus 630 10 – 30ecoTEC plus 637 12 – 37ecoTEC plus 824 7 – 19ecoTEC plus 831 9 – 24ecoTEC plus 837 12 – 28ecoTEC pro 24 7 – 19ecoTEC pro 28 9 – 24Table 5.3 Heating system part load adjustment ranges5.12 Gas changeoverNoteTo reset the appliance from natural gas to LPGmode, you need the Vaillant conversion kitArt. No. 00 2001 0641.To reset the appliance from LPG to natural gasmode, you need the Vaillant conversion kitArt. No. 00 2001 0642.Convert the appliance as described in theconversion kit.5 Commissioning Part I