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- ecoTEC plus 937
- Instructions And Maintenance Instructions
Vaillant ecoTEC plus 937 Instructions And Maintenance Instructions
Summary of ecoTEC plus 937
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Instructions and maintenance instructions ecotec plus 937 gas fired wall hung high efficiency boiler with layered storage tank vui gb for the heating engineer.
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2 inhaltsverzeichnis 1 introduction .....................................................4 1.1 notes on the documentation ...............................4 1.1.1 documents also having validity ...........................4 1.1.2 storage of the documents ....................................4 1.1.3 safe...
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Contents 3 installation and maintenance instructions ecotec plus 0020031552_03 6 commissioning part ii: functional checks ............................................................36 6.1 functional checks ................................................ 36 6.1.1 method of procedure ..................
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Installation and maintenance instructions ecotec plus 0020031552_03 4 1 introduction 1.1 notes on the documentation the following information is intended to help you throughout the entire documentation. Further documents apply in combination with this instal- lation and maintenance manual. We accept...
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5 installation and maintenance instructions ecotec plus 0020031552_03 intended use includes the observance of the operating and installation manual and the adherence to the in- spection and maintenance conditions. D danger! Danger to persons and/or material damage! Any improper use is forbidden. The...
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Installation and maintenance instructions ecotec plus 0020031552_03 6 2 unit description, data and dimensions 2.1 technical data name ecotec plus 937 combination unit unit nominal heat output range of central heating 80 °c feed/60 °c return 60 °c feed/40 °c return 50 °c feed/30 °c return 40 °c feed/...
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7 installation and maintenance instructions ecotec plus 0020031552_03 unit description, data and dimensions 2 2.2 dimensions 24 1 20 64 2 72 0 883 323 100 100 440 35 35 13 0 180 17 5 273 24 3 566 59 8 8 6 4 3 2 1 5 7 9 1 2 3 4 5 10 11 12 fig. 2.1 dimensions ecotec plus 937 1 heating return pipe, Ø 2...
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Installation and maintenance instructions ecotec plus 0020031552_03 8 24 1 20 64 2 72 0 88 3 100 100 440 35 35 17 5 6 4 3 2 1 5 130 180 198 1 2 3 4 5 7 8 fig. 2.2 dimensions shift load storage tank 1 heating return pipe, Ø 22 mm 2 cold water connection, Ø 15 mm 3 gas connection Ø 22 mm 4 hot water c...
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9 installation and maintenance instructions ecotec plus 0020031552_03 2.3 structure and functional elements the ecotec plus 937 consists of – a modified combination boiler and – a 15 litre shift load storage tank. Mains cold water heated by the combi unit is fed to the heat insulated storage tank by...
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Installation and maintenance instructions ecotec plus 0020031552_03 10 2.5 functional description 1 2 3 4 14 13 12 6 7 8 9 11 10 16 17 15 20 19 18 5 c b a fig. 2.5 sequence diagram 1 exhaust gas 2 heat exchanger 3 combustion chamber 4 water condensate siphon 5 expansion vessel 6 operating display 7 ...
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11 installation and maintenance instructions ecotec plus 0020031552_03 the ecotec plus 937 is a fully-automatic wall-mounted unit with condensing technology for central heating and hot water preparation and with a shift load storage tank for the storage of hot water. Mains cold water heated by the c...
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Installation and maintenance instructions ecotec plus 0020031552_03 12 3.3 scope of supply and accessories 1 1 10 9 8 7 6 5 4 3 2 1 fig. 3.1 scope of supply and accessories the shift load storage tank and the combi boiler are delivered pre-assembled in one packaging unit. Check that all parts have b...
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13 installation and maintenance instructions ecotec plus 0020031552_03 however, the unit would have to be mounted in a spe- cially made enclosure. (you can also use an existing cabinet or existing enclosure as long as it can be modi- fied accordingly to suit the new application.) further de- tails c...
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Installation and maintenance instructions ecotec plus 0020031552_03 14 a 100 mm standard flue duct (item no. 303 933) is available. Further information can be obtained from the installation instructions for the flue duct. Extensions are available to increase this length to a maximum of 5.5 m. 87° el...
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15 installation and maintenance instructions ecotec plus 0020031552_03 b) so that products of combustion are not directed to discharge across a boundary. 1) dimensions b, c and d: these dimensions can be reduced to 25 mm without having a negative effect on the performance of the boiler. In order to ...
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Installation and maintenance instructions ecotec plus 0020031552_03 16 3.10.3 pressure relief valve the boiler is equipped with a pressure relief valve. This safety device is required for all sealed central heating systems, is preset to 3 bar and is fitted with a 15 mm compression connection for the...
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17 installation and maintenance instructions ecotec plus 0020031552_03 4 sequence of operations during installation 4.1 transporting the appliance a important: with regards to the manual handling operations, 1992 regulations, the following lift operation exceeds the recommended weight for a one man ...
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Installation and maintenance instructions ecotec plus 0020031552_03 18 • ensure safe lifting techniques are used – keep back straight – bend using legs. • keep load as close to body as possible. • always use assistance if required. • dispose of packaging in a responsible manner. • recommend wear sui...
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19 installation and maintenance instructions ecotec plus 0020031552_03 4.2 required minimum gaps/assembly clearances min min 5 min 5 min 500 min 180 16 5/ 246 fig. 4.1 distances during installation (dimensions in mm) the combination of units must be installed on a flat vertical wall which is large e...
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Installation and maintenance instructions ecotec plus 0020031552_03 20 use the template provided for the installation (see fig. 4.2). The template shows the following: the position of the fixing holes for the hanging bracket, – the position of the connections. – the position of the hole in the wall ...
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21 installation and maintenance instructions ecotec plus 0020031552_03 4.9 removing the front case 1 2 fig. 4.5 removing/fixing the front case proceed as follows to remove the front cladding: • release the screw (1) on the base of the unit. • push the two retaining clips (2) on the base of the unit ...
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Installation and maintenance instructions ecotec plus 0020031552_03 22 • pull the union nut (6) with the olive (5) towards the gas isolator valve. Tighten the union nut hand tight. • the diameter of the pre-formed copper pipe (2) is 22 mm. Connect this pipe to a gas supply pipe having a diameter of ...
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23 installation and maintenance instructions ecotec plus 0020031552_03 h note before connecting the heating circuit to the combi boiler all pipework and radiators must be thoroughly flushed out to remove all con- taminants. 10 11 12 13 9 8 7 6 1 2 3 4 5 fig. 4.9 flow and return heating connections •...
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Installation and maintenance instructions ecotec plus 0020031552_03 24 h note the drain pipe connected to the condensate drain of the combi boiler must have a constant gradient (45 mm per metre) and should be installed and terminate within the building to prevent the possibility of freezing up. The ...
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25 installation and maintenance instructions ecotec plus 0020031552_03 4.17 storage tank pressure relief discharge pipe- work 1 2 fig. 4.14 storage tank pressure relief discharge pipe connection the safety valve for the hot water system is integrated in the shift load storage tank. • remove the flex...
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Installation and maintenance instructions ecotec plus 0020031552_03 26 • pull the electronics box forward and lower. • unclip the back cover of the electronics box and lift the cover upwards to reveal the connections. 1 2 3 fig. 4.16 cable run on the underside of the unit • feed the wiring harness (...
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27 installation and maintenance instructions ecotec plus 0020031552_03 4.19.4 wiring diagrams burner cable harness wiring harness hydraulics connection for external ebus controller room thermostat 24 v: connection 7, 8 und 9 no bi-directional interface (only analogue) room thermostat 230 v/50 hz (re...
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Installation and maintenance instructions ecotec plus 0020031552_03 28 x 2 bus — + 24v 7 8 9 230v l n 3 4 5 x 20 x40 x3 1 x12 x41 electronics box hot water outlet (ntc) fan ignition electrode flow temperature sensor (ntc) diverter valve gas valve water pressure sensor return temperature sensor (ntc)...
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29 installation and maintenance instructions ecotec plus 0020031552_03 bus — + 24v 7 8 9 230v l n 3 4 5 x3 1 x12 boiler electronics box storage tank charging sensor (ntc) x 1/3 violet x 1/1 black pump x 1/7 green x 1/1 black x 1/8 red storage tank sensor (ntc) x 1/4 orange x 1/1 black plug connectio...
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Installation and maintenance instructions ecotec plus 0020031552_03 30 4.20 control units 4.20.1 vaillant control units and accessories controller item no. Connection vrc 400 (1-circuit controller, weather-controlled) 00 2001 0843 installation in electronics box (plug-and-play) vrt 360 (room tempera...
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31 installation and maintenance instructions ecotec plus 0020031552_03 h note external frost protection devices cannot be used if plug-in timers are used. 4.23 heating pump the combi boiler is fitted with a heating pump which is fully wired (additional cabling is not necessary). The pump has automat...
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Installation and maintenance instructions ecotec plus 0020031552_03 32 the unit does not go to heating mode, the heating pump runs intermittently and alternately vents the heating cir- cuit and the hot water circuit. • use the test programme as described in section 8.2. 5.4.1 checking the filling pr...
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33 installation and maintenance instructions ecotec plus 0020031552_03 • check that both stop valves on the combi boiler are open. • connect the filling loop as described in section 5.4.2. • open the water stop valve. • slowly open the isolator valve in the filling loop so that water can flow into t...
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Installation and maintenance instructions ecotec plus 0020031552_03 34 5.9 checking the gas supply 5.9.1 factory settings a caution! Before operating the boiler check the type- plate (data badge) underneath the appliance and ensure that the correct gas type appliance has been installed. The combi bo...
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35 installation and maintenance instructions ecotec plus 0020031552_03 5.10 fitting the front casing 1 2 fig. 5.7 fitting the front casing • hook the front casing section into the tabs at the top of the frame of the combi boiler and slide the lower section of the casing into the position provided. •...
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Installation and maintenance instructions ecotec plus 0020031552_03 36 6 commissioning part ii: functional checks 6.1 functional checks 6.1.1 method of procedure after installing and setting the gas, perform a function check before commissioning the appliance and handing over to the user. • commissi...
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37 installation and maintenance instructions ecotec plus 0020031552_03 a a b c c 1 1 1 fig. 6.4 setting range for the storage tank temperature if the storage tank charging function is switched off the storage tank is not held at temperature. In this case the unit switches on when water is drawn off ...
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Installation and maintenance instructions ecotec plus 0020031552_03 38 sary to modify the base cover by removing the easily removable breakaway sections. 6.2 handing over the boiler to the owner h note when you have finished the installation, attach the sticker supplied (835 593) to the appliance in...
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39 installation and maintenance instructions ecotec plus 0020031552_03 7 inspection and maintenance 7.1 first inspection regular maintenance and service is recommended to ensure continued safe and efficient operation of the ap- pliance. The frequency of maintenance and service de- pends upon the ind...
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Installation and maintenance instructions ecotec plus 0020031552_03 40 7.1.3 overview of inspection and maintenance tasks no. Step column 1 an inspection must be perfor- med once a year. Column 2 maintenance 1 check flue system and make sure that it is not blocked, not damaged and fixed correctly. X...
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41 installation and maintenance instructions ecotec plus 0020031552_03 7.1.4 function check of the combination boiler • carry out a function check of the combi boiler as de- scribed earlier. • remove the front panel in accordance with the in- structions and switch the combi boiler on. • check the fu...
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Installation and maintenance instructions ecotec plus 0020031552_03 42 7.2.2 cleaning the integral condensation heat- exchanger a caution! Protect the electronics box from water splashes. 3 4 1 2 fig. 7.3 cleaning the heat-exchanger • dismantle the compact thermo module as described under 7.2.1. A c...
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43 installation and maintenance instructions ecotec plus 0020031552_03 • insert the compact thermo module (9) in the integral condensation heat exchanger (10). • tighten the four nuts (4) alternately on the left and right until the burner door closes securely and evenly over the surface of the heat ...
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Installation and maintenance instructions ecotec plus 0020031552_03 44 • isolate the unit from the electric mains in the appart- ment as described in 8.2. • close the cold water stop valve on the inlet combina- tion (see fig. 7.10) and drain the unit from the hot water side. • release the fitting (1...
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45 installation and maintenance instructions ecotec plus 0020031552_03 7.8 test mode always perform the following steps after performing any maintenance work: • commission the appliance in accordance with the in- structions in the relevant operating manual. • check the appliance for gas and water le...
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Installation and maintenance instructions ecotec plus 0020031552_03 46 8 troubleshooting 8.1 logical fault finding procedure carry out the following checks before the actual trou- bleshooting: • carry out the tests to check electrical safety (see sec- tion "preparatory checks on the electrical syste...
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47 installation and maintenance instructions ecotec plus 0020031552_03 8.1.2 diagnostic codes in the diagnostic mode, you can change certain parame- ters or display more information. The diagnostic information is divided into two diagnostic levels. Access to the second diagnostic level can only be p...
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Installation and maintenance instructions ecotec plus 0020031552_03 48 second diagnostic level • as described above in the first diagnostic level, scroll through to the diagnosis number d.97. • change the displayed value to 17 (password) and push the button "i". You are now in the second diagnostic ...
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49 installation and maintenance instructions ecotec plus 0020031552_03 display meaning displayed value/settable value d.72 pump overrun time after warm start or shift load storage tank charging setting range in seconds: 0, 10, 20 to 600 factory setting: 80 d.73 offset for warm start target temperatu...
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Installation and maintenance instructions ecotec plus 0020031552_03 50 code meaning cause f.0 flow ntc open circuit ntc faulty, ntc cable faulty, faulty plug connection on ntc, faulty plug connection on the electronics f.01 return ntc open circuit ntc faulty, ntc cable faulty, faulty plug connection...
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51 installation and maintenance instructions ecotec plus 0020031552_03 code meaning cause f.81 apc loadpump fault connected to f.91 storage tank is not fully charged after a specific period of time. -check storage tank charge sensor and storage tank sensor -air in the apc pump -check pump wiring har...
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Installation and maintenance instructions ecotec plus 0020031552_03 52 9 replacing components the tasks listed below may only be undertaken by a qualified competent heating engineer. • only use genuine spare parts for repairs. • check that the parts are correctly fitted and that the original locatio...
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53 installation and maintenance instructions ecotec plus 0020031552_03 5 fig. 9.3 gas valve/fan screwed joint • release both fixing screws (5) on the gas valve and remove the fan from the gas valve. • replace the faulty component. A caution! Danger of damage to the equipment! Fit the gas valve and f...
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Installation and maintenance instructions ecotec plus 0020031552_03 54 1 2 3 4 fig. 9.5 replacing the primary heat exchanger 3 2 1 fig. 9.6 holder for the primary heat-exchanger • pull the plug connection (2) of the thermal fuse off the primary heat-exchanger. • unscrew the three screws (3) on the h...
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55 installation and maintenance instructions ecotec plus 0020031552_03 • remove the screw on the cover of the shift load stor- age tank. • remove the cover. • the expansion vessel (1) is freely accessible • release the nuts (2) on the expansion tank. • pull the expansion tank (1) off the pipe fittin...
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Installation and maintenance instructions ecotec plus 0020031552_03 56 d danger! Before replacing components ensure that the safety instructions from section 9.1 are ob- served. • isolate the unit from the mains as described in sec- tion 9.1. • close the gas isolator valve in the gas supply pipe. • ...
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57 installation and maintenance instructions ecotec plus 0020031552_03 9.11 checking and setting the co 2 content, if re- quired (air ratio adjustment) h note checking/adjusting this value is only required under the following circumstances: replacing the gas valve, converting from or to natural gas/...
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Installation and maintenance instructions ecotec plus 0020031552_03 58 10 recycling and disposal the product development of all vaillant products takes into account later recycling and/or the secure scrapping of each component used. Vaillant factory standards stipulate strict requirements in this re...
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59 installation and maintenance instructions ecotec plus 0020031552_03 ec declaration of conformity ec declaration of conformity.
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0020031552_03 gb 052008.