Summary of Contents for Vaillant ecoTEC exclusive SERIES
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For the installer Installation and maintenance instructions ecoTEC exclusive Gas wall boilers with condensing appliance technology ecoTEC exclusive 832 ecoTEC exclusive 838...
..............35 5.10.4 Details for the connection of an external Test operation............35 timer to the connection rail ........18 5.10.5 Optional plug-in timers by Vaillant ....... 18 Troubleshooting ..........36 5.10.6 Wiring diagrams............19 Diagnostics ..............36 9.1.1...
10.5 Replacing electronics and display ......44 lation and maintenance manual. We accept no liability for any damage caused by fail- Vaillant service ..........44 ure to observe these instructions. Recycling and disposal ........44 Other applicable documents For the owner of the system: Technical data ...........
12 Pressure sensor Intended use 6 Diverter valve 13 Heat exchanger The Vaillant ecoTEC exclusive is a state-of-the-art appli- 7 Hot water heat exchanger 14 Air / flue gas duct ance which has been constructed in accordance with CE label recognised safety regulations.
Description of the appliance 2 Safety instructions and regulations 3 Type overview Appliance Designated country Approval Type of gas Nominal heat rating Hot water output type (designation in accor- category in kW (heating) in kW dance with ISO 3166) Natural gas H G20 UK (Great Britain) 31,4 Liquid gas propane G31...
BS 6880: Low temperature hot water heating systems of output greater than 45 kW. Part 1 Fundamental and design considerations. The Vaillant ecoTEC exclusive is delivered pre-assem- Part 2 Selection of equipment. bled in a package unit. Part 3 Installation, commissioning and maintenance.
Assembly 4 4.1.1 Transporting the appliance Carriage of carton from point of delivery to point of installation – first or higher floor, cellar. Important: • Recommend 2-person lift or 1 person with use of sack With regards to the Manual Handling Opera- truck.
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4 Assembly • Always use assistance if required. Positioning of Appliance for Final Installation – within • Dispose of packaging in a responsible manner. compartment etc. restricting installation. • Recommend wear suitable cut resistant gloves with • If appliance weight is over 25 kg always use 2 persons good grip to protect against sharp edges and ensure to move where practical.
4 Assembly Installation site Particularly in hairdessing salons, lacquering and finish- The site of erection of the boiler should allow proper ing workshops, cleaning facilities, etc., the appliance connection of the air/exhaust ducting. In addition, there must be operated independently of the ambient air. Oth- should be adequate room for maintenance work and air erwise, a separate installation room is required to guar- circulation around the boiler.
Installation 5 Installation Mounting the appliance Danger! The Vaillant ecoTEC exclusive may only be in- stalled by a suitably qualified heating engineer who also assumes the responsibility for install- ing the appliance properly and fully commis- sioning the appliance prior to first use, along with demonstrating its correct use to the end user.
G20 and can only be converted to the use • Connect a 15 mm hot water outlet pipe (4) to the of propane gas G31 by the Vaillant service engineer or outlet connection (5) of the appliance. a suitably qualified (CORGI registered) installer.
Installation 5 The Vaillant ecoTEC exclusive is set in the factory to a nominal water quantity of 11.6 l/min. (38 kW unit) and 9.8 l/min. (32 kW unit). Heating connection Fig. 5.4 Fitting the pressure relief valve The pressure relief valve and filling loop connection is provided within the boiler cardboard box and should be assembled as shown below.
Vaillant appliances are only system-certified if of up to 21 m. You can also get a vertical system. Fur- genuine Vaillant flue pipes are used. Only use ther information can be obtained from the installation genuine Vaillant flue pipes. Malfunctions can instructions for the flue pipe.
Installation 5 BS 5440–1: We recommend that the terminal of a fan-assisted flue pipe system be positioned as follows: a) At least 2 m from an opening in the building directly opposite, and b)so that the combustion products do not flow out at right angles to a boundry.
5 Installation Condensate discharge nection head of 75 mm (fitted within the boiler al- ready). The connection should be made after the drain siphon if possible. If the installation is only possible in front of the siphon, there must be a ventilation valve between the two siphons.
Installation 5 • Then insert the connection lines through the cable Note! openings (2) into the electronic box and cut them to There is no provision set in the factory for length. connection of an installation thermostat for underfloor heating. Note! Make sure that the connection cables are securely fastened in to the screw terminals.
4 on the boiler must be interrupted by the contacts of the room thermostat (see circuit diagram Fig. 5.14). 5.10.5 Optional plug-in timers by Vaillant Further details for the connection can be found in the relevant instructions of the accessories. The cover on the connection box should be replaced after all the elec- trical connections have been made.
Start-up 6 5.10.6 Wiring diagrams Connection eBUS accessories Cable harness compact thermal module PWM pump Connection accessories module Diagnosis via eBUS, vrnetDIALOG External sensor External flow or return sensor Cable harness hydraulics Connection for external eBUS controller Caution: Do not connect mains voltage! Room thermostat 24 V: Danger of damage to Connection 7, 8 and 9...
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6 Start-up Flow temperature Return temperature sensor (NTC) Ignition electrode sensor (NTC) X 20/5 red X 20/7 black X 20/8 blue X 20/7 black Plug connection Gas valve X 20/16 blue (Earth) X 20/4 grey (PWM) X 20/3 black (Hall signal) X 20/18 red (24 VDC) X 20/17 red (24 VDC) X 20/9 blue (Earth)
Start-up 6 Start-up Note! The ecoTEC units are supplied with a pressure Filling the installation gauge and a digital pressure display (2). Using the pressure gauge you can perform a quick 6.1.1 Filling and venting from the heating side check whether the filling pressure is within the prescribed range or not, even when the unit is switched off.
Conversion from natural gas to liquid gas or the installation out of the heating system before the vice versa may only be undertaken by Vaillant boiler is started up. service personnel or a suitably qualified •...
Start-up 6 If the connection pressure is not within the permissible range and you cannot resolve the problem, inform the gas supply authority. Proceed as follows: Take the appliance out of operation. • Close the gas isolation cock on the unit. •...
• Hand the unit over to the user. Fig. 6.8 Display during heating mode The Vaillant ecoTEC exclusive has status codes which As soon as there is a heat demand, the appliance goes indicate the operating condition of the appliance in the through the status displays "S.
It is strongly recommended that a maintenance contract be taken out to ensure regular maintenance. Further information can be obtained from Vaillant Service So- Fig. 6.9 Display during hot water preparation lutions (0870 6060 777).
7 Adapting the appliance to the heating system Adapting the appliance to the heat- ing system The ecoTEC exclusive units are fitted with a digital in- formation and analysis system. Selection and setting the parameters In the diagnostic mode, you can change the various pa- rameters required to match the boiler to the heating system.
Adapting the appliance to the heating system 7 Overview of the settable installation parameters The following parameters can be set to match the appliance to the heating system and to suit the customers requirements: Default Appliance-specific Display Meaning Adjustable parameters setting setting Heating partial load ecoTEC exclusive 832...
8 Inspection and maintenance 7.2.4 Setting the return temperature control When connecting underfloor heating or wall heating to the appliance which does not have its own temperature regulation, the temperature regulation mode can be changed from feed temperature regulation (factory set- ting) to return temperature regulation under diagnosis point "d.17".
Inspection and maintenance 8 Note! Adjusting the bypass valve After the set number of hours have expired, the The appliances have a bypass valve. service interval must be entered in the diagno- The pressure can be adjusted between 170 and 350 mbar. sis mode again.
• Check all the functions of the appliance. lead to injury and material damage. Filling/draining the heating installation In order to ensure all the functions of the Vaillant appli- 8.3.1 Filling the unit and heating installation ance over a long period, only genuine Vaillant spare...
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Inspection and maintenance 8 Column 1 Inspection Column 2 Activity must be Maintenance carried out once a year Check the air/gas flue system and ensure it is not blocked, damaged and is fitted correctly. Measure the gas rate during operation (see chapter ‚Start-up‘). If the gas rate is lower than the minimum gas rate follow the maintenance instructions (column 2).
8 Inspection and maintenance Proceed as follows to dismount it: 8.4.2 Clean the heat exchanger • Turn the appliance off on the main switch. • Isolate the unit from the electrical mains. Caution! • Cut off the gas supply to the device. Protect the electronics box turned down •...
Inspection and maintenance 8 8.4.3 Checking the burner Fig. 8.3 Checking burner The burner (1) is maintenance-free and needs no cleaning. • Check the burner surface for damage, replace the burner if necessary. • After checking/replacing the burner, dismantle the compact thermo module as described in Section 8.4.4.
8 Inspection and maintenance Maintaining the secondary heat exchanger Cleaning the condense trap Danger! All water conducting components present a danger of burning and scalding. Only carry out work on these components once they have cooled down. Caution! Protect the electronics box turned down against sprayed water.
Inspection and maintenance 8 Checking the expansion vessel Checking the gas setting 8.8.1 Checking the connection pressure (gas inlet working pressure) To check the connection pressure proceed as described in Chapter 6.1.2. 8.8.2 Checking CO content and adjusting if necessary To check the air figure proceed as described in Chapter 6.2.2.
Troubleshooting Display Meaning Heating mode Note! No heat required If you wish to contact the Vaillant Service Team, Fan start please refer to the error code displayed (F.xx) Water pump flow and the appliance status (S.xx) if possible. Ignition Burner mode...
Troubleshooting 9 9.1.2 Diagnosis codes In the diagnosis mode, you can change certain para- meters or display more information. The diagnosis information is divided into two diagnosis levels. The 2nd diagnosis level can be reached only after entering a password. Caution! The access to the 2nd diagnosis level may only be used by a qualified heating engineer.
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Digitalised ionisation voltage Display range 0 to 102, >80 no flame, <40 good flame display External temperature (with weather-controlled d.47 actual value in °C Vaillant controller) d.67 Remaining burner locking time in minutes d.76 Appliance variant (device specific number) 00 to 99 1 = identified, 0 = unidentified (eBUS Address ≤...
9 Troubleshooting 9.1.3 Error codes The error codes displace all other displays when errors You can exit the error memory display as follows: occur. • Press the "i" button or If many errors occur simultaneously, the relevant error • Do not press any button for about 4 minutes. codes are displayed alternately for approx.
Replacing components 10 Code Meaning Cause F.71 Constant value feed NTC Feed NTC faulty F.72 Flow and/or return sensor fault Flow and/or return sensor is faulty (tolerance too great) Signal water pressure sensor in the wrong range Line to water pressure sensor is interrupted or has F.73 (too low) a short-circuit to 0V or water pressure sensor faulty...
10 Replacing components 10 Replacing components The tasks listed below in this section may be carried out only by a heating engineer. • Only use genuine spare parts for repairs. • Make sure the parts are correctly fitted and that their original position and alignment are retained.
Replacing components 10 • Only ecoTEC exclusive 832: Pull out the plug from the fan printed circuit board. Only ecoTEC exclusive 838: Open the coupling of the mains input. • Release the four screws (3) on the compact thermo module . •...
The Vaillant ecoTEC exclusive and all accessories and the previously set parameters from the components the packaging must not be disposed of in the household that are not replaced.
Technical data 13 13 Technical data ecoTEC exclusive Unit Nominal heat output range P at 40/30 °C 11,0 - 29,3 12,1 - 32,4 Nominal heat output range P at 50/30 °C 10,8 - 28,7 11,9 - 31,8 Nominal heat output range P at 60/40 °C 10,5 - 27,9 11,5 - 30,9 Nominal heat output range P at 80/60 °C...