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Summary of Contents for Vaillant 0010020394
- Page 1 Installation and maintenance instructions For the competent person Installation and maintenance instructions ecoFIT sustain 825 - 835 GB, IE Publisher/Manufacturer Vaillant GmbH Berghauser Str. 40 D-42859 Remscheid Tel. +49 21 91 18‑0 Fax +49 21 91 18‑2810 info@vaillant.de www.vaillant.de...
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Page 2: Table Of Contents
Contents Contents 7.10 Checking the gas flow rate ........17 7.11 Checking and adjusting the gas settings ..... 18 Safety ..............4 7.12 Checking leak-tightness ........19 Action-related warnings ......... 4 Adapting the unit to the heating installation............20 Risk caused by inadequate qualifications....4 Burner anti-cycling time ........ - Page 3 Contents Index ................... 47 0020230529_02 ecoFIT sustain Installation and maintenance instructions...
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Page 4: Safety
1 Safety Safety Intended use There is a risk of injury or death to the user or Action-related warnings others, or of damage to the product and other Classification of action-related warnings property in the event of improper use or use The action-related warnings are classified in for which it is not intended. - Page 5 Safety 1 ▶ If possible, close the gas isolator cock on ▶ Secure against being switched back on the product. again. ▶ Warn other occupants in the building by ▶ Wait for at least 3 minutes until the con- yelling or banging on doors or walls. densers have discharged.
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Page 6: Regulations (Directives, Laws, Standards)
1 Safety locations, choose a separate installation room in which the room air is technically free of chemical substances. 1.4.11 Risk of material damage caused by leak detection sprays and liquids Leak detection sprays and liquids block the filter of the mass flow sensor on the Venturi, and thus destroy the mass flow sensor. -
Page 7: Notes On The Documentation
= year of production For quality control purposes; 5th and 6th Benchmark digits = week of production Vaillant is a licensed member of the Benchmark Scheme. For identification purposes; 7th to 16th digits = product article number Benchmark places responsibilities on both manufacturers For quality control purposes;... -
Page 8: Functional Elements: Combination Unit
4 Assembly CE label Information on the Meaning identification plate Read the instructions. GC no. Gas council number The CE label shows that the products comply with the basic requirements of the applicable directives as stated on the Functional elements: Combination unit identification plate. -
Page 9: Dimensions
Assembly 4 Heating return Connection on the top Quantity Description of the air/flue pipe Connection on the back Connection pipe (heating flow and return) of the air/flue pipe Cold water connection pipe Hot water connection pipe Minimum clearances Gas pipe Expansion relief valve discharge pipe Installation template Enclosed documentation... -
Page 10: Removing/Installing The Front Casing
4 Assembly Removing/installing the front casing 4.9.1 Removing the front casing Check whether the wall has sufficient load-bearing ca- pacity to bear the operational weight of the product. Check if the supplied fixing material may be used for the wall. Conditions: The load-bearing capacity of the wall is sufficient, The fixing material may be used for the wall ▶... -
Page 11: Installation
Installation 5 Checking the gas meter ▶ Make sure that the existing gas meter is capable of passing the rate of gas supply required. Gas and water connections Caution. Risk of damage caused by incorrect gas connection installation. Excess test pressure or operating pressure may cause damage to the gas valve. -
Page 12: Connecting The Drain Line For The Expansion Relief Valve
5 Installation Connecting the condensate drain pipework ▶ Follow the instructions listed here and observe directives and local regulations on condensed water discharge. ▶ Use PVC or another material that is suitable for draining the non-neutralised condensed water. ▶ If you cannot guarantee that the materials from which the drain lines are made are suitable, install a system for neutralising the condensate. - Page 13 Installation 5 5.5.1 Opening the electronics box 5.5.5 Establishing the power supply ▶ Follow the instructions in the specified sequence. Observe all valid regulations. Ensure that the rated mains voltage is 230 V. 5.5.2 Closing the electronics box Set up a fixed connection and install a partition with a ▶...
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Page 14: Operation
6 Operation 5.5.6 Connecting controllers to the electronic mostat, install an additional frost protection thermo- stat. system ◁ The pump programmes are not active. ◁ If the product is switched off, the display is switched off. ◁ Each time the unit is started, the fan runs for 20 seconds. -
Page 15: Calling Up The Installer Level
Start-up 7 Start-up Calling up the installer level Only call up the installer level if you are a competent Carrying out the initial start-up person. Press ("i") at the same time. Initial start-up must be carried out by a customer service technician or an authorised competent person using the first- ◁... -
Page 16: Avoiding Danger Arising From Insufficient Water Pressure
7 Start-up ▶ ▶ Do not use any unsuitable frost and cor- If the value is below 6.5 or above 8.5, clean the system and treat the heating water. rosion protection agents, biocides or seal- ▶ Ensure that oxygen cannot get into the heating water. ants. -
Page 17: Switching On The Product
Start-up 7 Switching on the product Filling the condensate siphon ▶ Switch on the product via the main switch installed on- site. Filling and purging the heating installation Preliminary work ▶ Flush the heating installation through. Unclip the lower section of the siphon (1) from the up- per section of the siphon (2). -
Page 18: Checking And Adjusting The Gas Settings
7 Start-up Permissible connection pressure H gas in m³/h Qnw from the data plate Great Bri- Natural −10% 1.7 … 2 kPa Nom. tain (17.0 15.3 1.62 1.70 1.46 … 20 mbar) 18.4 1.95 2.05 1.76 Should the pressure recorded at the reference test point 24.7 2.61 2.74... -
Page 19: Checking Leak-Tightness
Start-up 7 7.11.2 Checking the leak-tightness of the flue gas installation and flue gas recirculation Check the flue gas installation is intact in accordance with the latest gas safe technical bulletin and informa- tion supplied in the installation instructions. For extended flue gas installations check for flue gas recirculation using the air analysis point. -
Page 20: Adapting The Unit To The Heating Installation
8 Adapting the unit to the heating installation Status codes – Overview (→ Page 32) 8.1.2 Resetting the remaining burner anti-cycling time ◁ If the product is working correctly, the display shows ▶ S.14. Press Setting the pump output Adapting the unit to the heating The product is equipped with a speed-regulated high-effi- installation ciency pump, which adjusts independently to the hydraulic... -
Page 21: Setting The Hot Water Temperature
Handing the product over to the operator 9 10 Troubleshooting 10.1 Rectifying faults ▶ If fault messages (F.xx) appear, rectify the fault after referring to the table in the appendix or using the check programmes. (→ Page 15) Overview of fault codes (→ Page 33) If several faults occur at the same time, the display shows the corresponding fault messages for two seconds each in alternation. -
Page 22: Replacing Defective Components
10 Troubleshooting 10.5 Replacing defective components 10.5.1 Replacing the burner Remove the gas-air mixture unit. (→ Page 25) Remove the two burner seals. Remove the burner. Insert the new burner. Insert two new burner seals in the burner cover. Install the gas-air mixture unit. (→ Page 27) 10.5.2 Replacing the gas-air mixture unit Remove the gas-air mixture unit. - Page 23 Troubleshooting 10 10.5.4 Replacing the pump head 10.5.6 Replacing the main PCB Disconnect the pump cable from the electronics box. Undo the four bolts (1). Remove the pump head (2). Replace the O-ring. Use four screws to secure the new pump head. Connect the pump cable to the electronics box.
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Page 24: Checking The Product For Leak-Tightness
11 Inspection and maintenance 10.5.8 Replacing the expansion relief valve 10.6 Checking the product for leak-tightness ▶ Check that the product is leak-tight. (→ Page 19) 11 Inspection and maintenance 11.1 Using original seals If you replace components, use only the enclosed original seals;... -
Page 25: Setting The Co₂ Content
Inspection and maintenance 11 Checking the CO₂ content Great Britain Great Bri- Removed front cas- tain ing/installed front casing Removed front cas- Natural gas ing/installed front casing ≤ 250 ppm CO at full Natural gas load ≤ 0.0027 CO/CO₂ 9.2 ±1 % ▽... -
Page 26: Cleaning The Heat Exchanger
11 Inspection and maintenance 11.7 Cleaning the heat exchanger Protect the folded down electronics box against sprayed water. Clean the ribs of the heat exchanger (1) with water. ◁ The water runs out into the condensate tray. Remove the air intake pipe (3). Remove the plugs from the gas valve (4) and from the 11.8 Checking the burner... -
Page 27: Cleaning The Condensate Siphon
Inspection and maintenance 11 11.10 Cleaning the condensate siphon 11.12 Cleaning the heating filter Drain the product. (→ Page 28) Remove the temperature sensor (1). Remove the upper clip (2). Unclip the lower section of the siphon (1) from the up- per section of the siphon (2). -
Page 28: Draining The Product
Drain the product. (→ Page 28) 13 Customer service To ensure regular servicing, it is strongly recommended that arrangements are made for a Maintenance Agreement. Please contact Vaillant Service Solutions for further details: Telephone: 0330 100 3461 Installation and maintenance instructions ecoFIT sustain 0020230529_02... -
Page 29: Appendix
Appendix Appendix Overview of diagnostics codes Note Since the code table is used for various products, some codes may not be visible for the product in question. Dia- Values Default set- gnostics Parameter Unit Increment, select, explanation Own setting ting Min. - Page 30 Appendix Dia- Values Default set- gnostics Parameter Unit Increment, select, explanation Own setting ting Min. Max. code – d.18 Pump overrun operating 1 = Continuous (pump runs per- Adjustable mode manently) 3 = Eco (intermittent pump mode – for the dissipation of the resid- ual heat after hot water gener- ation at an extremely low heat demand)
- Page 31 Appendix Dia- Values Default set- gnostics Parameter Unit Increment, select, explanation Own setting ting Min. Max. code – – d.35 Position of the diverter Current value 0 = Heating valve adjustable 40 = Mid-position (parallel opera- tion) 100 = Domestic hot water –...
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Page 32: B Status Codes - Overview
Appendix Dia- Values Default set- gnostics Parameter Unit Increment, select, explanation Own setting ting Min. Max. code – d.80 Running time in heating Current value Running time = Display value x mode adjustable – d.81 Running time in hot wa- Current value Running time = Display value x ter handling mode... -
Page 33: C Overview Of Fault Codes
Appendix Status code Meaning S.16 DHW mode: Fan overrun S.17 DHW mode: Pump overrun Display in Comfort mode with warm start or hot water handling mode with cylinder S.20 Hot water handling mode: Requirement S.21 Hot water handling mode: Advance fan operation S.22 Hot water handling mode: Pump pre-run S.23... - Page 34 Appendix Fault code Meaning Possible cause F.20 Safety switch-off: Overheating temperat- Incorrect earth connection between cable harness and product, flow or return ure reached NTC defective (loose connection), stray spark via ignition cable, ignition plug or ignition electrode F.22 Safety switch-off: Low water pressure in No or insufficient water in the product, water pressure sensor de- the boiler fective, cable to the pump or to the water pressure sensor loose/not...
- Page 35 Appendix Fault code Meaning Possible cause F.84 Fault: Flow/return temperature sensor Values not consistent, difference < -6 K Flow and return temperature sensors signalling implausible values: Flow and return temperature sensors have been inverted, flow and return temperature sensors have not been correctly installed F.85 Fault: Temperature sensor The flow and/or return temperature sensors have been installed on the same...
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Page 36: D Connection Diagram: Combination Unit
Appendix Connection diagram: Combination unit Burner off RT 24V X106 eBUS – Burner 24V= 230V~ RT 230Vac 230Vac Main PCB 3-way valve Interface PCB Pressure sensor Timer Flow rate sensor Temperature sensor in the heating flow External ignition device Temperature sensor in the heating return Heating pump Ionisation and ignition electrode Gas valve... -
Page 37: E Connection Diagram: Combination Unit (35 Kw)
Appendix Connection diagram: Combination unit (35 kW) Burner off RT 24V X106 eBUS – Burner 24V= 230V~ RT 230Vac 230Vac Main PCB 3-way valve Interface PCB Pressure sensor Timer Flow rate sensor Temperature sensor in the heating flow External ignition device Temperature sensor in the heating return Heating pump Ionisation and ignition electrode... -
Page 38: F Inspection And Maintenance Work - Overview
Appendix Inspection and maintenance work – Overview 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 in the table. -
Page 39: G Opening In The Flue Pipe
Appendix Opening in the 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. 300 mm Horizontally to an opening, air bricks, opening windows, etc., that can be opened. -
Page 40: 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 41: 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) 0020230529_02 ecoFIT sustain Installation and maintenance instructions... - Page 42 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 43 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 44 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 45: I Technical Data
Appendix Technical data Technical data – Heating VUW 256/6-3 (H- VUW 306/6-3 (H- VUW 356/6-3 (H- 10 … 80 ℃ 10 … 80 ℃ 10 … 80 ℃ Max. flow temperature adjustment range (default setting: 75 °C) Maximum permissible pressure 0.3 MPa 0.3 MPa 0.3 MPa... - Page 46 Appendix VUW 256/6-3 (H- VUW 306/6-3 (H- VUW 356/6-3 (H- Diameter of the heating connec- 3/4 inch 3/4 inch 3/4 inch tions Expansion relief valve connector 15 mm 15 mm 15 mm (min.) Condensate drain pipework (min.) 21.5 mm 21.5 mm 21.5 mm G20 gas supply pressure 2.0 kPa...
- Page 47 Index Index Intended use................4 Leak detection spray ............. 6 Air/flue pipe, installed ............5 Mains connection ..............13 Burner anti-cycling time............20 Maintenance work ............24, 38 Minimum clearance ............... 9 Burner anti-cycling time, resetting ........20 Burner anti-cycling time, setting .......... 20 Operating concept ...............
- Page 48 0020230529_02 0020230529_02 21.12.2016 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.
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