Notes on the documentation 20020224355_00 HOME Installation and maintenance instructions 72 Notes on the documentation2.1 Observing other applicable documents▶ You must observe all the operating and installation in-structions included with the system components.2.2 Storing documents▶ Pass these instructions and all other applicable docu-ments on to the system operator.2.3 Applicability of the instructionsThese instructions apply only to:Product article numberArticle number Gas Council Num-berHOME COMBI 25-A (H-GB)0010019930 47-044-62HOME COMBI 30-A (H-GB)0010019931 47-044-63HOME COMBI 35-A (H-GB)0010019932 47-044-64These products are only designed for natural gas systems.3 Product description3.1 Serial number21The serial number can be found on the identification plate (1)(→ Page 7).Stickers showing the serial number are on the back of theelectronics box (2).3.2 Information on the identification plateThe identification plate is mounted on the underside of theproduct in the factory.The identification plate keeps record of the country in whichthe product is to be installed.Information on theidentification plateMeaningBarcode with serial numberInformation on theidentification plateMeaningSerial number For quality control purposes; 3rd and 4thdigits = year of productionFor quality control purposes; 5th and 6thdigits = week of productionFor identification purposes; 7th to 16thdigits = product article numberFor quality control purposes; 17th to 20thdigits = place of manufactureHOME COMBI Product descriptionXX, Gxx – xx mbar(x kPa)Gas group and gas connection pressureas set at the factoryCat. Approved gas categoryCondensing techno-logyEfficiency class of the boiler in accord-ance with EC Directive 92/42/EECType: Xx3(x) Permissible flue gas connectionsPMS Maximum water pressure in heatingmodePMW Maximum water pressure in hot waterhandling modeV/Hz Electric connectionW Max. electrical power consumptionIP Level of protectionHeating modeHot water generationPn Nominal heat output range in heatingmodePnc Nominal heat output range in heatingmode (condensing technology)P Nominal heat output range in hot waterhandling modeQn Nominal heating load range in heatingmodeQnw Nominal heating load range in hot waterhandling modeTmax. Max. flow temperatureNOx NOx class for the productCode (DSN) Specific product code→ "CE label" sectionRead the instructions.→ "Recycling and disposal" sectionGC no. Gas council number