Vaillant ecoTEC PLUS SERIES Installation And Maintenance Manual

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

Contents

22 Installation and maintenance manual ecoTEC4.11 Condensate drain pipe7dSoakawayc65GulleyaInternalstackpipe343bInternaldischarge system12Fig. 4.12 Installing the condensate drain pipe (picture showsecoTEC 800 plus)The ecoTEC plus appliances are fitted with a surgesiphon. The surge siphon collects the accumulated con-densate in a container of approx. 200 ml capacity anddirects the entire content in a surge into the drain pipe.The risk of the condensate drain pipe freezing is thusminimised.The ecoTEC pro appliances are equipped with a normalcondensed water siphon where the accumulated conden-sate is constantly directed into the drain pipe.• Connect the boiler condensate drain (1) to a conden-sate discharge pipe (2) which should be minimum of19 mm internal diameter (22 mm external diameter forany pipework installed external to the property) andbe made of an acid resistant material (e.g. plastic over-flow pipe).NoteThe discharge pipe from the boiler condensatedrain must have a continuous fall (45 mm permeter) and preferably be installed and terminat-ed within the building to prevent freezing.The condensate discharge pipe must terminate in a suit-able position, e.g.:a) preferably the discharge pipe should run and termi-nate internally to the house soil and vent stack (atleast 450 mm above the invert of the stack). A trapgiving a water seal of at least 75 mm (3) should beincorporated into the pipe run, and there must be anair break (4) in the discharge pipe upstream of thetrap. This should be designed so that the condensatecannot be discharged into the house if the condensatepipe becomes blocked.b)connecting into the internal discharge branch (e.g. sinkwaste or washing machine) with an external termina-tion, the condensate discharge pipe should have aminimum diameter of 22 mm with no length restrictionand should incorporate a trap with a 75 mm (3) seal.The connection should preferably be made downstream of the sink waste trap. If the connection is onlypossible upstream, then an air break is neededbetween the two traps. This is normally provided bythe sink waste.c) terminating in a gully (5) below grid level (6) andabove the water level. The external pipe length shouldbe kept a short as possible to minimise the risk offreezing and should not be more than 3 m.d)at a condensate absorption point (soakaway) (7). Theexternal pipe length should not be more than 3 m.Refer to ‘BS 6798 Specification for installation of gas–fired boilers of rated input not exceeding 70 kW net’ forfurther information. Before operating the boiler the con-densate trap (1) must be filled with water as described inrelevant section.4.12 Connecting the flue system to the boiler• Refer to separate air/flue duct installation instructionsincluded with the boiler.4.13 Electrical connection4.13.1 General requirementsDanger!Electroculation caused by touching live partscan be fatal.Before working on the appliance, turn off thepower supply and secure against restart.All electrical work shall be carried out by a competentperson and shall comply with BS7671 (IEE Regulations).In IE, reference should be made to the current edition ofthe ETCI rules. The boiler is supplied for connection to230 V, ~ 50 Hz supply fused at 3 A rating. Connection tothe mains supply shall be made via a fused 3 pin plug toan unswitched shuttered socket, both complying withthe requirements of BS1363.(Alternatively, connection may be made via a 3 A fuseddouble pole isolator having a contact separation of atleast 3 mm in all poles and supplying the boiler and con-trols only). The point of connection to the mains supplymust allow complete electrical isolation of the boiler andits ancillary controls. It should be readily accessible andadjacent to the boiler. A 3 core flexible cord according toBS6500 tables 6, 8 or 16 (3 x 0.75 to 3 x 1.5 mm 2) shouldbe used.Danger!This appliance must be earthed.4 Boiler installation sequence