Vaillant ecoTEC exclusive 843 Installation And Maintenance Instructions Manual
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- Page 1 Installation and maintenance instructions ecoTEC exclusive 835 (VUW 356/5‑7 (H-GB)) 843 (VUW 436/5‑7 (H-GB)) 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 Preventing low water pressure ......19 Flushing the heating installation for the first time ("cold") ............19 Safety ..............4 7.10 Filling the heating installation ......19 Action-related warnings ......... 4 7.11 Purging the heating installation ......20 Intended use ............ - Page 3 Contents Commissioning Checklist......... 51 Opening of the flue pipe........55 Positioning of the opening of a fan-supported flue gas pipe ............55 Horizontal terminal positioning......56 Technical data............ 56 Index ................... 60 0020193968_03 ecoTEC exclusive Installation and maintenance instructions...
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Page 4: Safety
1 Safety Safety this document shall be considered improper use. Any direct commercial or industrial use Action-related warnings is also deemed to be improper. Classification of action-related warnings Caution. The action-related warnings are classified in Improper use of any kind is prohibited. accordance with the severity of the possible danger using the following warning signs and General safety information... - Page 5 Safety 1 ▶ Ensure that the product is supplied with phone once you are outside of the build- ing. sufficient combustion air. 1.3.3 Risk of death from leaks if the 1.3.8 Risk of poisoning caused by product is installed below ground insufficient combustion air supply level Conditions: Open-flued operation...
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Page 6: Regulations (Directives, Laws, Standards)
1 Safety 1.3.13 Risk of injury due to the heavy Regulations (directives, laws, weight of the product standards) ▶ Make sure that the product is transported ▶ Observe the national regulations, stand- by at least two people. ards, guidelines and laws. 1.3.14 Risk of material damage caused by using an unsuitable tool ▶... -
Page 7: Notes On The Documentation
47-044-67 GB)) ecoTEC exclusive Benchmark Vaillant is a licensed member of the Benchmark Scheme. Benchmark places responsibilities on both manufacturers and installers. The purpose is to ensure that customers are provided with the correct equipment for their needs, that it is installed, commissioned and serviced in accordance with the manufacturer’s instructions by a competent person approved... -
Page 8: Ce Label
4 Set-up Compartment Ventilation Information on the Meaning identification plate The boilers are very high efficiency appliances. 2H, G20 – 20 mbar Gas group and gas connection pressure As a consequence the heat loss from the appliance casing (2.0 kPa) as set at the factory during operation is very low. -
Page 9: Dimensions
Set-up 4 ▶ If the unit is being lifted by two persons, ensure your Heating flow Connection for the heating expansion relief movements are coordinated during lifting. Hot water connection ▶ valve drain line If required, get somebody to assist you in this. Gas connection Condensate trap con- nection... -
Page 10: Wall-Mounting The Product
4 Set-up Wall-mounting the product Removing the front casing ▶ Check whether the wall has sufficient load-bearing ca- Remove the front casing as shown in the illustration. pacity to bear the operational weight of the product. Check if the supplied fixing material may be used for the wall. -
Page 11: Removing The Side Section
Installation 5 ▶ Removing the side section If, during gas leak-tightness tests, you also place the gas lines and the gas valve in the product under pressure, use a max. test pressure of 11 kPa (110 mbar). ▶ If you cannot limit the test pressure to 11 kPa (110 mbar), close any gas isolator cocks that are installed upstream from the product before you carry out the gas leak-... -
Page 12: Installing The Gas Connection
5 Installation 5.1.1 Information on liquefied petroleum gas Installing the gas connection operation In the as-delivered condition, the product is preset for opera- tion with the gas group indicated on the data plate. If you have a product that is preset for operation with natural gas, you must replace the gas family coding resistor with the enclosed coding resistor for liquefied petroleum gas during the installation. -
Page 13: Connecting The Condensate Drain Pipework
Installation 5 ▶ Connecting the condensate drain pipework As with other pipe work insulate the condensate dis- charge pipe to minimise any risk of freezing and beware Danger! when crossing cavities that the fall is maintained and the pipe sleeved. Risk of death from escaping flue gases! ▶... -
Page 14: Electrical Installation
5 Installation 5.9.1 Opening the electronics box Caution. Risk of poisoning due to escaping flue gas. Mineral-oil-based greases can damage the seals. ▶ Instead of grease, use only water or com- mercially available soft soap to aid install- ation. Install the flue pipe using the installation manual. 5.8.2 Replacing the connection piece for the air/flue pipe as required... - Page 15 Installation 5 5.9.3 Establishing the power supply Open the electronics box. (→ Page 14) Detach the ProE plug from the PCB slot for the mains Caution. connection (X1). Risk of material damage due to high con- Unscrew the ProE plug for the factory-installed power nected voltage.
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Page 16: Operation
6 Operation Live Monitor (status codes) When starting up in the installation assistant or retro- actively via diagnostics code D.087, set the correct gas Menu → Live monitor type. Status codes in the display provide information on the pro- 5.9.7 Connecting additional components duct's current operating status. -
Page 17: Restarting The Installation Assistants
Start-up 7 ▶ 7.3.7 Auxiliary relay and multi-functional module To confirm the set language and to avoid unintentionally changing it, press to confirm this twice. If you have connected additional components to the If you have unintentionally set a language that you do not product, assign these components to the individual re- understand, proceed as follows to change it: lays. -
Page 18: Using Check Programmes
7 Start-up ▶ Using check programmes Check the pH value of the removed water at 25 °C. ▶ If the value is below 8.2 or above 10.0, clean the installa- Menu → Installer level → Test programs → Check pro- tion and treat the heating water. -
Page 19: Preventing Low Water Pressure
Start-up 7 – Fernox F3 Check that the expansion relief valve of the heating – system is functioning correctly by turning the handle Sentinel X 300 on the valve. – Sentinel X 400 Check the pressure in the heating system and top up Additives intended to remain permanently in the with water if necessary. -
Page 20: Purging The Heating Installation
7 Start-up 7.13 Filling the condensate trap Open the stop valve (4) so that the water flows into the heating system. Fill the heating system. 7.13.1 Filling the condensate trap Purge the lowest radiator until water flows out of the purging valve without bubbles. -
Page 21: Gas Inspection
Start-up 7 Install the lower section of the condensate trap by pla- Conditions: Gas flow rate in the permissible range cing the lower section in position and turning it clock- ▶ End the check programme P.01. wise until it clicks into place. ▶... - Page 22 7 Start-up ▶ During the calibration and when measur- 14. Tighten the screw on the measuring nipple (1). ing the CO₂ content, you must operate the 15. Open the gas isolator cock. product with the front casing installed and 16. Check the measuring nipple for gas tightness. closed, and with the flue pipe completely Conditions: Gas flow pressure not in the permissible range installed.
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Page 23: Checking Leak-Tightness
Start-up 7 ▶ In the next few minutes, measure the CO/CO₂ content In the next few minutes, measure the CO/CO₂ content and the gas flow at maximum load. and the gas flow at minimum heat input. ▶ 10. Use to end check programme P.01. to end check programme P.02. -
Page 24: Adapting The Unit To The Heating Installation
8 Adapting the unit to the heating installation Install the front casing. Set maximum burner anti-cycling time Flow [min] (target) [°C] Adapting the unit to the heating 22.5 26.0 29.0 32.0 35.5 38.5 installation 19.5 22.5 25.0 27.5 30.5 33.0 16.5 18.5 21.0... -
Page 25: Setting The Pump Output
Adapting the unit to the heating installation 8 Setting the pump output Navigate to Menu → Installer level → Diagnostics menu → D.014 Pump speed target value and confirm by pressing Set the required pump output. Conditions: Low loss header installed ▶... -
Page 26: Troubleshooting
9 Troubleshooting Troubleshooting Note If no fault message is present, the product will Comfort protection mode for the heat cell automatically switch back to normal operating mode after a certain time. Conditions: Neither nor a fault code F.xx are shown in the display Unusual operating noises are emitted from the heat cell in Conditions: S.86 is displayed the product. -
Page 27: Preparing The Repair Work
Troubleshooting 9 Preparing the repair work Temporarily decommission (→ Page 32) the product. Disconnect the product from the power mains. Remove the front casing. (→ Page 10) Close the service valves in the heating flow, in the heat- ing return and in the cold water pipe. Drain the product (→... - Page 28 To make the installation easier, use only the lubricant that may be included with the Vaillant spare part. If no lubricant is included with the Vaillant spare part, use only water or Remove the clamps on the hot water connection (10), commercially available soft soap.
- Page 29 Troubleshooting 9 9.7.7 Replacing the PCB and the display 25. Fill (→ Page 19) and purge (→ Page 20) the product and, if required, the heating installation. Open the electronics box. (→ Page 14) Replace the PCB and display according to the 9.7.5 Replacing the expansion vessel assembly and installation instructions supplied.
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Page 30: Completing Repair Work
10 Inspection and maintenance Completing repair work Danger! Risk of death and risk of material damage Establish the power supply. caused by hot flue gas. Switch the product back on if this has not yet been done. (→ Page 16) The seal, insulating mat and self-locking nuts Install the front casing. -
Page 31: Cleaning The Condensate Trap
Inspection and maintenance 10 10.3.4 Installing the compact thermal module 10. Unscrew the four nuts (7). 11. Remove the entire compact thermal module (2) from the heat exchanger (1). 12. Check the burner and the heat exchanger for damage and dirt. 13. -
Page 32: Cleaning The Filter In The Cold Water Inlet
11 Decommissioning 10.5 Cleaning the filter in the cold water inlet 10.6 Draining the product Close the service valves of the product. Start the check programme P.06 (diverter valve mid- position). Open the drain valves. Make sure that the cap of the automatic air vent on the internal pump is open so that the product can be drained fully. -
Page 33: Decommissioning The Product
Observe all relevant regulations. 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 0020193968_03 ecoTEC exclusive Installation and maintenance instructions... -
Page 34: Appendix
Appendix Appendix Installer level – Overview Setting level Values Default Unit Increment, select, explanation setting Min. Max. Installer level → – – Enter code 1 (competent person code 17) Installer level → Fault list → F.XX – F.XX¹ – – –... - Page 35 Appendix Setting level Values Default Unit Increment, select, explanation setting Min. Max. – Accessory relay 1 1 = Circulation pump 2 = External pump 3 = Cylinder charging pump 4 = Extractor hood 5 = External solenoid valve 6 = External fault message 7 = Solar pump (not active) 8 = eBUS remote control (not active) 9 = Legionella protection pump (not active)
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Page 36: B Overview Of Diagnostics Codes
Appendix Setting level Values Default Unit Increment, select, explanation setting Min. Max. – Accessory relay 1 1 = Circulation pump 2 = External pump 3 = Cylinder charging pump 4 = Extractor hood 5 = External solenoid valve 6 = External fault message 7 = Solar pump (not active) 8 = eBUS remote control (not active) 9 = Legionella protection pump (not active) - Page 37 Appendix Values Default Code Parameter Unit Increment, select, explanation setting setting Min. Max. – D.007 Cylinder temperature tar- Current value °C Only products with integrated do- Not ad- get value mestic hot water generation justable Comfort mode target value Only products with no integrated domestic hot water generation and with a connected cylinder –...
- Page 38 Appendix Values Default Code Parameter Unit Increment, select, explanation setting setting Min. Max. D.020 Max. DHW temperature °C Max. set value for cylinder target target value value – – D.022 DHW demand Current value Domestic hot water requirement via Not ad- C1/C2, impeller or APC justable 0: Off...
- Page 39 Pump mode 0 = Relay with disable facility 1 = PWM with disable facility – D.047 Current outside temperat- Current value °C (with Vaillant weather-compensated Not ad- control) justable – D.050 Offset min. speed 3000 Nominal value set in factory –...
- Page 40 Appendix Values Default Code Parameter Unit Increment, select, explanation setting setting Min. Max. D.075 Max. cylinder charging Max. charging time for domestic time hot water cylinder without inde- pendent control system – – D.076 Device Specific Number Current value (Device specific number = DSN) Not ad- justable D.077...
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Page 41: C Status Codes - Overview
Appendix Values Default Code Parameter Unit Increment, select, explanation setting setting Min. Max. – D.095 Software version: PeBUS Current value 0: BMU participant 1: AI 2: APC 3: SMU – – D.096 Reset to factory settings? 0: No 1: Yes –... - Page 42 Appendix Status code Parameter Meaning S.17 DHW mode: Pump overrun DHW mode: Pump overrun S.19 DHW mode: Measuring program DHW mode: Measuring programme Comfort mode, warm start or domestic hot water mode with actoSTOR S.20 DHW demand Domestic hot water requirement S.21 DHW mode: Fan start-up DHW mode: Fan start-up...
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Page 43: D Overview Of Fault Codes
Flow/return sensor test running, heating demands are S.98 Flow/return temperature sensor self-test blocked. S.99 Vaillant self-test Self-test Overview of fault codes Note Since the code table is used for various products, some codes may not be visible for the product in question. - Page 44 Appendix Code Parameter Possible causes F.33 Pressure switch Check: Cable harness, vacuum hose (blockage), supply air/flue gas route (blockage), panel (correct type), flue pipe (length), air pressure sensor, settings (if necessary, switch D.132 to multiple-flue configura- tion), pressure switch, fan. F.35 Fault: Air/flue gas duct Check the entire air/flue pipe for:...
- Page 45 Appendix Code Parameter Possible causes F.70 Fault: Invalid Device Specific Number If spare parts fitted: Display and PCB replaced at same time and DSN not reset, incorrect or missing output range coding resistor F.71 Fault: Flow sensor Flow temperature sensor signalling constant value: –...
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Page 46: E Wiring Diagrams
Appendix Wiring diagrams Wiring diagram 12 - 35 kW +24V Hallsignal Masse X100 X40 X51 X100 230V~ X101 X101 Installation and maintenance instructions ecoTEC exclusive 0020193968_03... - Page 47 Appendix Main PCB Bus connection (digital room thermostat/control) Operator control panel PCB Prioritising diverter valve All-gas sensor Water pressure sensor Gas valve assembly Warm start sensor Outdoor temperature sensor, flow temperature Domestic hot water sensor sensor (optional, external), DCF receiver Internal heating circuit flow rate sensor Circulation pump remote control Impeller sensor...
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Page 48: Wiring Diagram ≥ 37 Kw
Appendix Wiring diagram ≥ 37 kW +24V Hallsignal Masse X100 X40 X51 X100 230V~ X101 X101 Installation and maintenance instructions ecoTEC exclusive 0020193968_03... -
Page 49: F Inspection And Maintenance Work - Overview
Appendix Main PCB Bus connection (digital room thermostat/control) Operator control panel PCB Prioritising diverter valve All-gas sensor Water pressure sensor Gas valve assembly Warm start sensor Outdoor temperature sensor, flow temperature Hot water sensor sensor (optional, external), DCF receiver Internal heating circuit flow rate sensor Circulation pump remote control Impeller sensor Coding resistor... - Page 50 Appendix Mainten- ance Inspection (must be Work (annual) carried out at regular intervals) Products with integrated domestic hot water generation only: Clean the strainer in the cold water inlet. Replace the strainer if impurities can no longer be removed or if the strainer is damaged. In this case, also check the impeller sensor for dirt and damage, clean the sensor (do not use compressed air for this) and replace the sensor if it is damaged.
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Page 51: G 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) 0020193968_03 ecoTEC exclusive Installation and maintenance instructions... - Page 52 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 53 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 54 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 55: H Opening Of The Flue Pipe
Appendix Opening of 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 56: I 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 57 Appendix (VUW 356/5‑7 (VUW 436/5‑7 (H-GB)) (H-GB)) ecoTEC ecoTEC exclusive exclusive Gas flow rate at 15 °C 3.5 m³/h 4.3 m³/h and 1013 mbar (based on hot water generation, if applicable), G20 Gas flow rate at 15 °C 2.54 kg/h 3.12 kg/h and 1013 mbar (based on hot water generation, if...
- Page 58 Appendix (VUW 356/5‑7 (VUW 436/5‑7 (H-GB)) (H-GB)) ecoTEC ecoTEC exclusive exclusive Nominal heat output range P at 50/30 °C * … 26.4 kW … 36.0 kW Nominal heat output range P at 80/60 °C * … 24.6 kW … 33.4 kW Maximum heat output for 35.3 kW 43.4 kW...
- Page 59 Appendix Technical data – Electrics (VUW 356/5‑7 (VUW 436/5‑7 (H-GB)) (H-GB)) ecoTEC ecoTEC exclusive exclusive Electric connection 230 V/50 Hz 230 V/50 Hz Permissible connected 190 … 253 V 190 … 253 V voltage Built-in fuse (slow-blow) Min. electrical power con- 47 W 46 W sumption...
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Page 60: Index
Index Index Disposing of the packaging ..........33 Documents ................7 Draining, product ..............32 Air ratio setting .............. 22–23 Electricity ................5 Air/flue pipe, connecting ............13 Air/flue pipe, installed ............5 Electronics box, closing............14 Electronics box, opening ............. 14 Air/flue pipe, installing ............ - Page 61 Index Liquid gas ................ 5, 12 Starting, installation assistants ..........17 Liquid gas, setting ............... 17 Status codes..............16, 41 Switching off, product ............32 Maintenance interval, setting..........24 Switching on/off ..............16 Maintenance work ............30, 49 Maintenance work, completing..........32 Target flow temperature ............
- Page 64 0020193968_03 0020193968_03 20.10.2017 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.