10 Instructions for installation and servicing ecoTEC / 839592_093 General requirements3.1 Preliminary remarks for room sealed appli-ancesThis appliance should only be installed in conjunction witheither a Vaillant flue system or an alternative approvedsystem (details of flue approval categories can be foundin the technical section of the installation manual).Install the flue system as detailed in the separate flueinstallation instructions supplied with this boiler.3.2 Related documentsThe installation of the boiler must be in accordance withthe relevant requirements of Gas Safety (Installation andUse) Regulations 1998, Health and Safety Document No.635 (The Electricity at Work Regulations 1989), BS7671(IEE Wiring Regulations) and the Water Supply (WaterFitting) Regulations 1999, or The Water Bylaws 2000(Scotland). It should also be in accordance with the rele-vant requirements of the Local Authority, BuildingRegulations, The Building Regulations (Scotland), TheBuilding Regulations (Northern Ireland) and the relevantrecommendations of the following British Standards:BS 6700: Services supplying water for domestic usewithin buildings and their curtilages.BS 6798: Specification for installation of gas fired boilersnot exceeding 60 kW input.BS 6891: Specification for installation of low pressuregas pipework up to 28 mm (R1) in domestic premises(2nd family gas).BS 7593: Treatment of water in domestic hot water cen-tral heating systems. Institute of Gas Engineers Publi-cation UP7 Edition 2BS. 5482: Pt. 1 Domestic butane and propane gas burn-ing installations.IGE/UP1: Soundness testing and purging of industrial andcommercial gas installation.IGE/UP2: Gas installation pipework, boosters and com-pressors on industrial and commercial premises.IG/UP/7 Edition 2 „Gas installations in timber framedand light steel framed buildings“IGE/UP10. Installation of gas appliances in industrial andcommercial premises.BS. 6644: Installation of gas fired hot water boilers ofrated inputs between 60 kW and 2 MW (2nd and 3rd fam-ily gases).BS. 5449: Forced circulation hot water central heatingsystems for domestic premises. Note: only up to 45 kW.BS. 6880: Low temperature hot water heating systemsof output greater than 45 kW.Part 1 Fundamental and design considerations.Part 2 Selection of equipment.Part 3 Installation, commissioning and maintenance.BS. 4814: Specification for: Expansion vessels using aninternal diaphragm, for sealed hot water heating sys-tems.BS. 5440: Installation and maintenance of flues andventilation for gas appliances of rated input not exceed-ing 70 kW net (1st, 2nd and 3rd family gases).Part 1 Specification for installation of flues.Part 2 Specification for installation and maintenanceof ventilation for gas appliances.European installation directiveCaution!The appliance must be installed and serviced bya competent person as stated in the Gas Safety(Installation and Use) Regulations 1998. In IE,the installation must be in accordance with thecurrent edition of I.S.813 ‘Domestic GasInstallations’, the current Building Regulationsand reference should be made to the currentETCI rules for electrical installation.Caution!When tightening or slackening screwed connec-tions always use suitable open-ended spanners(not pipe wrench, or extensions, etc.).Incorrect use and/or unsuitable tools can leadto damage being caused (e.g. gas or water leak-age)!3.3 Contents included with deliveryThe Vaillant ecoTEC is delivered pre-mounted in a pack-age unit. Check that all the parts have been deliveredintact (see fig. 3.1 and table 3.1, fig. 3.2 and table 3.2 andfig. 3.3 and table 3.3).3 General requirements