Vaillant VU 246/6-5 OVZ (P-GB) ecoTEC plus 424 P Installation And Maintenance Instructions Manual
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Summary of Contents for Vaillant VU 246/6-5 OVZ (P-GB) ecoTEC plus 424 P
- Page 1 Installation and maintenance instructions ecoTEC plus VU 246/6-5 OVZ (P-GB) GB, IE Publisher/manufacturer Vaillant GmbH Berghauser Str. 40 D-42859 Remscheid Tel. +492191 18 0 Fax +492191 18 2810 info@vaillant.de www.vaillant.de...
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Page 2: Table Of Contents
Contents Contents Switching on the product ........18 Filling the heating installation ......18 Safety ..............3 7.10 Checking the gas flow rate ........18 Action-related warnings ......... 3 7.11 Checking and adjusting the gas settings ..... 18 Intended use ............3 7.12 Checking leak-tightness ........ -
Page 3: Safety
Safety 1 – compliance with all inspection and main- Safety tenance conditions listed in the instruc- Action-related warnings tions. Classification of action-related warnings Intended use also covers installation in ac- The action-related warnings are classified in cordance with the IP code. accordance with the severity of the possible Any other use that is not specified in these in- danger using the following warning signs and... - Page 4 1 Safety ▶ Leave the building immediately and ensure 1.3.7 Risk of death due to explosive and flammable materials that others do not enter the building. ▶ Notify the gas supply company or the Na- ▶ Do not use the product in storage rooms tional Grid +44 (0) 800 111999 by tele- that contain explosive or flammable sub- phone once you are outside of the build-...
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Page 5: Regulations (Directives, Laws, Standards)
Safety 1 to corrosion on the product and in the flue system. ▶ Ensure that the supply of combustion air is always free of fluorine, chlorine, sulphur, dust, etc. ▶ Ensure that no chemical substances are stored at the installation site. ▶... -
Page 6: Notes On The Documentation
Meaning Product description identification plate Barcode with serial number Benchmark Vaillant is a licensed member of the Benchmark Scheme. Serial number For quality control purposes; 3rd and 4th Benchmark places responsibilities on both manufacturers digits = year of production and installers. The purpose is to ensure that customers are For quality control purposes;... -
Page 7: Ce Label
Set-up 4 Set-up Information on the Meaning identification plate Transporting the unit Code (DSN) Specific product code Important: With regard to the regulations of 1992 concern- Read the instructions. ing the manual handling of loads, the unit exceeds the weight that can be lifted by a single person. GC no. -
Page 8: Dimensions
4 Set-up Dimensions Minimum clearances 183,5 33,5 157,5 Minimum clearance 150 mm (top air/flue connection) 75 mm (rear air/flue connection) * 150 mm 5 mm (70 mm if the side sec- tions ought to be removed) 600 mm * Dimension A can be reduced to 20 mm if there is a removable surface above the product. -
Page 9: Removing/Installing The Front Casing
Installation 5 Only use fixing material that is permitted for the wall. If required, ensure that mounting apparatus on-site has sufficient load-bearing capacity. Wall-mount the product as described. Removing/installing the front casing 4.9.1 Removing the front casing Tilt the electronics box forward. Hold on to the side section so that it cannot fall, and unscrew both screws, one from the top and one from the bottom. -
Page 10: Installing The Heating Pump
5 Installation Pressure loss Caution. from the product Risk of material damage caused by residues in the pipelines. Welding remnants, sealing residues, dirt or other residues in the pipelines may damage the product. ▶ Flush the heating installation thoroughly before installing the product. Caution. -
Page 11: Heating Water Supply In The Open Heating System
Installation 5 Heating water supply in the open heating Using the correct gas type system Using the incorrect gas type may cause fault shutdowns in the product. Ignition and combustion noise may occur in the product. ▶ Only use the gas type listed on the data plate. Connecting the heating flow and heating return Heating return connec-... -
Page 12: Connecting The Condensate Discharge Pipe
5 Installation Connecting the condensate discharge pipe 5.8.1 Condensate drainage systems 5.8.1.1 Internal soil and vent pipe Ø19mm 5.8.1.2 External soil and vent pipe L = 3m max ▶ Follow the instructions listed here and observe the legal and local regulations on condensate discharge. ▶... -
Page 13: Electrical Installation
Installation 5 5.8.1.4 Internal termination into combined sink 5.8.1.7 External termination into rain water down waste pipe Ø19mm Ø19mm Ø30mm Ø30mm 5.8.1.5 Internal termination downstream of sink Electrical installation waste Danger! Risk of death from electric shock! Continuous voltage is present at power sup- Ø19mm ply terminals L and N even when the unit is switched off using the standby button. - Page 14 5 Installation – 5.9.2 Cable route Power supply: Single-phase, 230 V, 50 Hz – Fuse protection: ≤ 3 A Open the electronics box. (→ Page 13) Observe the routing of the power supply cable (1) in the electronics box in order to guarantee that there is no strain.
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Page 15: Operation
▶ Connect the boiler only using the set with article number commissioning-checklist. The first-commissioning-checklist 0020244337 (Installation Kit, 3-wire, Vaillant). in the appendix (→ Page 38) of the installation instructions – When connecting, observe the instructions for the must be filled out and stored carefully along with the unit's set. -
Page 16: Restarting The Installation Assistants
7 Start-up 7.2.7 Contact data If you have unintentionally set a language that you do not understand, proceed as follows to change it: ▶ If required, store your telephone number in the Appli- ▶ Press and hold at the same time. ance config. - Page 17 Start-up 7 ▶ Use a magnetic rod to check whether it contains mag- Caution. netite (iron oxide). Risk of material damage if the heating ▶ If you ascertain that it contains magnetite, clean the in- water is treated with unsuitable additives. stallation and apply suitable corrosion-protection meas- ures, or fit a magnetic filter.
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Page 18: Filling The Condensate Trap
7 Start-up Filling the condensate trap P gas in kg/h Qnw from the data plate −10% Nom. 24.7 1.92 2.02 1.73 25.7 2.00 2.10 1.80 30.6 2.38 2.50 2.14 Conditions: Gas flow rate not in the permissible range ▶ Check all of the piping and ensure that the gas flow rates are correct. -
Page 19: Checking Leak-Tightness
Start-up 7 Should the pressure recorded at the reference test point Check again whether the supply air contains any CO or in the boiler be lower than indicated check if there is any blockage in the pipework or if the pipework is un- If you cannot eliminate the damage, do not start up the dersized. -
Page 20: Adapting The Unit To The Heating Installation
8 Adapting the unit to the heating installation Adapting the unit to the heating Set maximum burner anti-cycling time Flow [min] installation (target) [°C] You can reset/change the system parameters using the fol- 10.0 11.0 11.5 lowing menu points: Menu → Installer level → Start inst. assistant You can restart and run through the installation assistant at any time. -
Page 21: Calling Up The Fault Memory
Troubleshooting 10 ▶ If you require spare parts for maintenance or repair work, use only the spare parts that are permitted for the product. 10.3 Calling up the fault memory The last 10 fault messages are stored in the fault memory. ▶... -
Page 22: Checking The Product For Leak-Tightness
11 Inspection and maintenance 10.6.5 Replacing the PCB for the user interface Lift the heat exchanger up slightly and remove it to- gether with the condensate tray. Remove the ignition transformer (5). 10. Replace all the seals. 11. Install the new heat exchanger in reverse order. 10.6.4 Replacing the main PCB Open the electronics box. -
Page 23: Setting The Co₂ Content
Inspection and maintenance 11 Setting the CO₂ value Great Britain front casing off front casing on Liquid gas Liquid gas 10.1 ±1 % 10.3 ±1 % CO₂ at full load Set for Wobbe 21.34 kW⋅h/m³ 21.34 kW⋅h/m³ index W₀ Unscrew the cover from the flue gas analysis point (1). 5.1 ±0.8 vol. -
Page 24: Cleaning The Heat Exchanger
11 Inspection and maintenance 11.6 Cleaning the heat exchanger Check the heat exchanger for damage and dirt. If required, clean and replace the heat exchanger. Protect the folded down electronics box against sprayed water. Clean the ribs of the heat exchanger (1) with water. ◁... -
Page 25: Cleaning The Condensate Trap
To ensure regular servicing, it is strongly recommended that arrangements are made for a Maintenance Agreement. Check whether the float is present in the Please contact Vaillant Service Solutions for further details: condensate trap. Telephone: 0330 100 3461 Clip the lower section of the condensate trap (1) into the upper section of the condensate trap (2). -
Page 26: Appendix
Appendix Appendix Inspection and maintenance work The table below lists the manufacturer requirements with respect to minimum inspection and maintenance intervals. If na- tional regulations and directives require shorter inspection and maintenance intervals, you should observe these instead of the intervals listed. Each time inspection and maintenance work is carried out, carry out the required preparatory and com- pletion work. -
Page 27: B Installer Level - Overview
Appendix Maintenance work Interval Check and, if required, replace the insulating mat in the burner area If required, at least every 5 years Installing the gas-air mixture unit If required, at least every 5 years Reassemble the product After each time maintenance work is carried out Open the service valves, carry out the required leak-tightness test Annually... - Page 28 Appendix Setting level Values Default Unit Increment, select, explanation setting Min. Max. ℃ – Flow temp. setpoint ℃ – DHW temperature Product with connected domestic hot water cylin- – Auxiliary relay 1 = Circulation pump 2 = External pump 3 = Cylinder charging pump 4 = Extractor hood 5 = External solenoid valve 6 = External fault message...
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Page 29: C Overview Of Diagnostics Codes
Appendix Setting level Values Default Unit Increment, select, explanation setting Min. Max. ℃ – Flow temp. setpoint ℃ – DHW temperature Product with hot water generation – Auxiliary relay 1 = Circulation pump 2 = External pump 3 = Cylinder charging pump 4 = Extractor hood 5 = External solenoid valve 6 = External fault message... - Page 30 Appendix Setting level Values Default set- Unit Increment, select, explanation Own setting ting Min. Max. – – d.08 Status of the 230 V ther- Current value 0 = Room thermostat open (no heat mostat requirement) adjustable 1 = Room thermostat closed (heat requirement) –...
- Page 31 Appendix Setting level Values Default set- Unit Increment, select, explanation Own setting ting Min. Max. – d.33 Fan speed target value Current value Fan speed = Display value x 100 adjustable – d.34 Value for the fan speed Current value Fan speed = Display value x 100 adjustable ℃...
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Page 32: D Status Codes - Overview
Appendix Setting level Values Default set- Unit Increment, select, explanation Own setting ting Min. Max. – – d.90 Status of the eBUS room Current value off = Not connected thermostat adjustable on = Connected – – d.93 Setting the product code Adjustable –... -
Page 33: E Overview Of Fault Codes
Appendix Status code Meaning S.54 Waiting period: Low water pressure in the circuit (flow/return spread too large) S.88 Product purging active S.91 Maintenance: Demo mode S.96 Automatic test programme: Return temperature sensor, heating demands blocked. S.98 Automatic test programme: Return temperature sensor, heating demands blocked. S.99 Internal automatic test programmes S.108... - Page 34 Appendix Code Meaning Cause F.68 Fault: Unstable flame signal Air in gas, gas flow pressure too low, incorrect air ratio, condensate duct blocked, incorrect gas restrictor, ionisation flow interruption (cable, electrode), flue gas recirculation, condensate duct F.70 Invalid device specific number (DSN) If spare parts fitted: Display and PCB replaced at same time and DSN not reset, incorrect or missing output range coding resistance F.71...
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Page 35: F Wiring Diagram
Appendix Wiring diagram Burner off X106 eBUS – Burner 24V= 230V~ Main PCB Gas valve assembly Interface PCB Heating pump Control system Monitoring electrode Temperature sensor on the heating flow Room thermostat Temperature sensor on the heating return Main power supply and connection for 230 V control Ignition electrode 0020239015_05 ecoTEC plus Installation and maintenance instructions... -
Page 36: G Position Of The Opening In The Air/Flue Pipe
Appendix Position of the opening in the air/flue pipe D, E Positioning of the opening of a fan-supported flue gas pipe Minimum dimen- Installation site sions Directly below an opening, air bricks, opening windows, etc., that can be opened. 300 mm Above an opening, air bricks, opening windows, etc., that can be opened. -
Page 37: Horizontal Terminal Positioning
Appendix Horizontal terminal positioning BS 5440-1 recommends that fanned flue chimney terminals should be positioned as follows: a) at least 2 m from an opening in the building directly opposite, and b) so that the products of combustion are not directed to discharge directly across a boundary if the products are likely to cause a nuisance to a neighbour or discharge over a walkway or patio. -
Page 38: H Commissioning Checklist
Appendix Commissioning Checklist Benchmark Commissioning and Servicing Section It is a requirement that the boiler is installed and commissioned to the completed in full. www.centralheating.co.uk © Heating and Hotwater Industry Council (HHIC) Installation and maintenance instructions ecoTEC plus 0020239015_05... - Page 39 Appendix GAS BOILER SYSTEM COMMISSIONING CHECKLIST This Commissioning Checklist is to be completed in full by the competent person who commissioned the boiler as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference. CONTROLS Optimum start control Fitted...
- Page 40 Appendix SERVICE RECORD It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed. Service Provider SERVICE 01 SERVICE 02 ² % ² % ² % ² % SERVICE 03 SERVICE 04 ²...
- Page 41 Appendix PRIOR TO CO AND COMBUSTION RATIO CHECK NOTE The boiler manufacturer’s installation instructions should have been followed, gas type verified and gas THE AIR GAS RATIO VALVE IS FACTORY supply pressure/rate checked as required prior to commissioning. SET AND MUST NOT BE ADJUSTED As part of the installation process, especially where a flue has been fitted by persons other than the DURING COMMISSIONING UNLESS THIS boiler installer, visually check the integrity of the whole flue system to confirm that all components are...
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Page 42: I Technical Data
Appendix Technical data Technical data – Heating VU 246/6-5 OVZ (P-GB) 10 … 80 ℃ Max. flow temperature adjustment range (default setting: 75 °C) Maximum permissible pressure 0.3 MPa (3.0 bar) Nominal water flow (ΔT = 20 K) 1,059 l/h Nominal water flow at Pmin 260 l/h (ΔT = 20 K) - Page 43 Appendix VU 246/6-5 OVZ (P-GB) 60 ℃ Flue gas temperature (50 °C/30 °C) at P max. 35 ℃ Flue gas temperature (50 °C/30 °C) at P min. 68 ℃ Flue gas temperature in hot water handling mode 95 ℃ Flue gas temperature when over- heating Released system types Nominal efficiency at 80/60 °C...
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Page 44: Index
Index Index Intended use................3 Language ................15 Air/flue pipe, installed ............4 Leak-tightness ............19, 22, 25 Liquid gas ................ 4, 11 Article number ............... 6 Auxiliary relay ..............16 Mains connection ..............14 Burner anti-cycling time............20 Maintenance work ............... 22 Minimum clearance ............... - Page 48 0020239015_05 0020239015_05 06.06.2018 Supplier Vaillant Ltd. Nottingham Road Belper Derbyshire DE56 1JT Telephone 0330 100 3461 info@vaillant.co.uk www.vaillant.co.uk © These instructions, or parts thereof, are protected by copyright and may be reproduced or distributed only with the manufacturer's written consent. We reserve the right to make technical changes.