Vaillant ecoTEC plus 612 Instructions For Installation And Servicing

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

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Vaillant ecoTEC plus 612 Instructions For Installation And Servicing Manual pdf 34 page image

Supplied By www.heating spares.co Tel. 0161 620 667734 Instructions for installation and servicing ecoTECNatural gas:DO NOT proceed with adjustment or attempt toput the unit into service if the inlet workingpressure lies outside the 17–25 mbar range.LPG:DO NOT proceed with adjustment or attempt toput the unit into service if the inlet workingpressure is lower than 37 mbar.• Turn off the appliance, remove U gauge.• Tighten the test point screw and check for leaks.• Record appliance working gas inlet pressure (mbar) inthe Benchmark gas boiler commissioning checklist.5.9.3 Checking the gas rateThe boiler is fitted with a fully modulating automatic gasvalve which ensures that the precise air/gas ratio is pro-vided under all operating conditions.The gas rate has been set during production and doesnot require adjustment.The gas rate of the boiler should be checked with thefront case fitted as follows:• Activate full gas rate mode by simultaneously pressingthe “+” and “–” buttons on the display system (forecoTEC combination boilers fully open the hot watertap to maximum water flow rate).• Wait at least 5 minutes, or until the boiler has reachedits operating temperature.• With all other gas appliances turned off measure thegas rate at the gas meter. Check that the gas rate is asstated in Table 5.1.Caution!If the measured gas flow volume lies outsidethe tolerance limits specified in Table 5.1, do notoperate the appliance and inform the VaillantCustomer Service.Appliance Maximum netheat input in kWGas rateNatural gas in m 3/h Propane in kg/hnominal + 5% - 10% nominal + 5% - 10%ecoTEC plus 612 12.2 1.29 1.36 1.16 0.95 1.00 0.85ecoTEC plus 615 15.3 1.62 1.70 1.46 1.19 1.25 1.07ecoTEC plus 618 18.4 1.95 2.04 1.75 1.43 1.50 1.29ecoTEC plus 624 24.5 2.59 2.72 2.33 1.90 2.00 1.71ecoTEC plus 630 30.6 3.24 3.40 2.91 2.38 2.50 2.14ecoTEC plus 637 37.8 4.00 4.20 3.60 2.94 3.08 2.64ecoTEC plus 824 23.5 2.49 2.61 2.24 1.83 1.92 1.64ecoTEC plus 831 31.6 3.34 3.51 3.01 2.45 2.58 2.21ecoTEC plus 837 37.8 4.00 4.20 3.60 2.94 3.08 2.64ecoTEC pro 24 23.5 2.49 2.61 2.24 1.83 1.92 1.64ecoTEC pro 28 28.6 3.03 3.18 2.72 2.22 2.33 2.00Table 5.1 Gas rates5.10 Refitting the case12Fig. 5.14 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 Commissioning Part I