Vaillant eco TEC plus 415 Instructions Manual

Contents

Vaillant eco TEC plus 415 Instructions Manual Manual pdf 20 page image

Installation and Servicing ecoTEC plus204 Boiler installation sequence4.3.3 Gas connectionDanger!The gas connection may only be made by acompetent person.The legal directives and the local regulationsfor gas supply companies must be observed.Caution!Ensure a stress-relief assembly of the gaspipes to avoid leakages!Caution!The gas regulating block may be tested forleakage only with a maximum pressure of150 mbar!Higher testing pressures can damage thegas fitting.Caution!When making final connection to the boiler, ifusing soldered fittings, extra care should betaken to avoid damage to isolation valvesthrough heat transfer.Before connection check the supply oflocal gas.Note!Ensure the gas supply pipe work is adequatelysized so that a 20 mbar gas pressure isavailable at the boiler inlet at full flow rate.• Tighten all connections.• Check the gas connection with leak indicatorspray for leakage.The gas supply can be connected from below, orthrough the wall at the rear of the boiler. See fig 4.5.and refer to section 3.4.The whole of the gas installation, including the meter,should be inspected, tested for soundness and purgedin accordance with the current issue of BS6891 andin IE the current edition of I.S.813 “Domestic GasInstallations”.4.3.4 Water connectionsCaution!When making final connection to the boiler, ifusing soldered fittings, extra care should betaken to avoid damage through heat transfer.Provision is made for the water connections to bemade from above the boiler, see fig 4.6 (using the two22mm compression couplers supplied). The position isshown on the wall template.Flush out the domestic hot water and the heatingsystems before connecting to the boiler.4.3.5 Condensate trap and siphonic drainconnectionRefer to fig 4.5.The condensate drain connection is at the undersiderear of the boiler.The condense drain is suitable for use with standard"Push fit" overflow pipe and couplings DO NOT useadhesive when connecting to the spigot (1) Thecondense drain pipe (2) should be non corrosiveplastic. The drain pipe should have a continuous fallof a least (45mm per metre) away from the boiler.Condensate should, if possible be discharged into thehousehold internal drainage system.The condensate is discharged periodically in ‘slugs’ bysiphonic action.It is not necessary to provide air breaks or extra trapsin the discharge pipe as there is already a 75mm hightrap inside the boiler. Fitting an extra trap may causethe boiler siphon to work incorrectly.Refer to BS5546 or BS6798 for advice on disposal ofboiler condensate.(a) Preferably the drain pipe should run and terminateinternally to the house soil and vent stack at least450mm above the invert of the stack. There must bean air break in the discharge pipe upstream of the trap.This should be designed so that the condensate cannotbe discharged into the house if the condensate drainpipe becomes blocked.(b) Connecting into the internal discharge branch(e.g. sink waste or washing machine) with an externaltermination, the condensate drain pipe should have aminimum diameter of 22mm with no length restrictionand should incorporate a trap with a 75mm (3)seal. The connection should preferably made downstream of the sink waste trap, if the connection isonly possible up stream, then an air break is neededbetween the two traps. This is normally provided bythe sink waste.(c) Termination in a gully (5) below grid level (6) andabove the water level. The external pipe length shouldbe kept as short as possible to minimise the risk offreezing and should not be more than 3 metres.(d) At a condensate absorption point (soak away) (7).The external pipe length should not be more than 3metres.Refer to the latest issue of BS 6798 Specificationfor installation of gas fired boilers of rate input notexceeding 70kW net for further information.Before operating the boiler the condensate trap mustbe filled with water.4.3.6 Installing the flue system• Install the flue system (refer to the separate air/flueduct installation instructions).Supplied by HeatingSpares247.com