Vaillant ecoTEC exclusive 832 Installation And Maintenance Instructions Manual

Also see for ecoTEC exclusive 832: Installation and maintenance instructions Installation and maintenance instructions

Contents

17ecoTEC exclusive installation and maintenance instructions / 0020017768_045.9 Condensate discharge7dSoakawayc65GulleyaInternalstackpipe343bInternaldischarge system12Fig. 5.11 Condensate dischargeThe ecoTEC exclusive units are equipped with a normalwater condensate collector where the condensate iscontinuously diverted into the drain pipe.• Connect the condensate drain (1) of the boiler to acondensate drain pipe (2) which has a minimum inter-nal diameter of 19 mm (22 mm outside diameter for allexternal pipes) and which is made from an acid-resist-ant material (e.g. plastic overflow pipe).h Note!The drain pipe connected to the condensatedrain of the boiler must have a constant gradi-ent (45 mm per metre) and should be installedand terminate within the building to preventthe possibility of freezing up.The condensate drain pipe should terminate in a suita-ble location, e.g.:a)The drain pipe should preferably terminate in the floorof the house in the ventilation duct (at least 450 mmabove the duct base). There must be a siphon (3) fittedin the line (mounted in the boiler) producing a connec-tion head of at least 75 mm of water. A ventilationvalve (4) must be fitted in the drain pipe in front of thesiphon. The connection to the ducting should not allowoverflow into another drain pipe or allow overflow fromanother drain pipe into the condensate drain pipe. Thiscan be achieved by keeping a gap between the pipebranches of at least 110 mm, with a duct diameter of100 mm, and 250 mm with a duct diameter of 150 mm.b) Connection into the domestic waste water drain pipe(e.g. a sink or washing machine) with an external ter-mination. The condensate drain pipe should have aminimum diameter of 22 mm, without length restric-tion, and also be fitted with a siphon (3) having a con-nection head of 75 mm (fitted within the boiler al-ready). The connection should be made after the drainsiphon if possible. If the installation is only possible infront of the siphon, there must be a ventilation valvebetween the two siphons. This is normally provided ina drain.c) Draining into a gully (5) under the grid (6) and abovethe water level. The external piping should be kept asshort as possible to minimise the frost risk, and shouldbe no longer than 3 m.d)To the condensate absorption point (drainage ditch) (7).The external pipe should have a maximum length of 3 m.Further information can be obtained from "BS 6798Specification for installation of gas–fired boilers of ratedinput not exceeding 70 kW net". The condense trap (1)must be filled with water as described in the relevantsection before the boiler is commissioned.5.10 Electrical connectiond Danger!The electrical installation may only be under-taken by an authorised engineer.Risk of fatal electric shock from touching liveconnections. Always disconnect the power sup-ply first by pulling the plug out of the wallsocket. Only after this can the installation beundertaken. Continuous voltage is present onthe mains connection terminals L and N, even ifthe main switch is turned off!5.10.1 Mains connectionThe appliance is fitted with a 1.0 m long connectioncable with mains plug. The three-pole mains plug is fit-ted with a 3.0 A fuse. The connection cable is wired intothe appliance in the factory.Connection to the mains supply shall be made via thefused 3 pin plug to an unswitched shuttered socket,complying to the requirements of BS 1363.Installation 5