Vaillant ecoTEC plus VU Series Installation And Maintenance Instructions Manual
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Table of Contents
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Summary of Contents for Vaillant ecoTEC plus VU Series
- Page 1 ecoTEC plus VU ..6/6-5 OVZ (H-GB) en Installation and maintenance instructions...
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Page 2: Table Of Contents
Installation and maintenance Filling the condensate trap ........27 Flushing the heating installation for the first instructions time ("cold") ............27 Switching on the product ........27 Contents Running the installation assistants ...... 27 Restarting the installation assistants ....28 Safety .............. -
Page 3: Safety
Safety Qualification The person carrying out the work described Intended use here must have completed professional train- The product is intended as a heat generator ing. The competent person must demon- for open and sealed heating installations and strably have all of the knowledge, skills and for domestic hot water generation. - Page 4 ▶ Do not use any electrical switches, mains To prevent electric shocks, proceed as fol- plugs, doorbells, telephones or other com- lows before working on the product: munication systems in the building. ▶ Disconnect the product from the power ▶ Close the emergency control valve or the supply by switching off all power supplies main isolator.
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Page 5: Regulations (Directives, Laws, Standards)
List of relevant standards for Great Britain and Ireland ▶ Observe the national regulations, stand- ards, directives, ordinances and laws. You can find a list of relevant standards at: https://www.vaillant.co.uk/standards 0020238195_07 ecoTEC plus Installation and maintenance instructions... -
Page 6: Guarantee And Customer Service
To register your Vaillant appliance visit: https://self-service.vaillant.co.uk/warranty-registration 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 at the time by the Health and... -
Page 7: Technical Data
Technical data Technical data – General VU 126/6-5 VU 156/6-5 VU 186/6-5 VU 246/6-5 VU 306/6-5 VU 356/6-5 OVZ (H-GB) OVZ (H-GB) OVZ (H-GB) OVZ (H-GB) OVZ (H-GB) OVZ (H-GB) Gas category Diameter of the gas pipe 1/2 inch 1/2 inch 1/2 inch 1/2 inch 1/2 inch... - Page 8 Technical data – G20 power/load G20 VU 126/6-5 VU 156/6-5 VU 186/6-5 VU 246/6-5 VU 306/6-5 VU 356/6-5 OVZ (H-GB) OVZ (H-GB) OVZ (H-GB) OVZ (H-GB) OVZ (H-GB) OVZ (H-GB) Maximum heat output 12 kW 15 kW 18 kW 24 kW 30 kW 35 kW Effective output range (P)
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Page 9: Notes On The Documentation
(condensing technology) Hot Water Association Nominal heat output range in hot water Vaillant is a full member of the Hot Water Association and handling mode promotes the scheme in association with its cylinder range. Nominal heating load range in heating Details are available on the web site www.vaillant.co.uk... -
Page 10: Functional Elements
Reset any external controls, to resume normal operation of the central heating. If the boiler does not resume normal operation press the reset button. If the boiler does not resume normal operation after this call your Installation/Servicing company or Vaillant service. 5.6.2 Overheating Safety The boiler software is designed to recognise the potential for an overheat lockout and will shutdown before this happens. -
Page 11: Set-Up
Set-up Dimensions Checking the scope of delivery ▶ Check that the scope of delivery is complete and intact. 6.1.1 Scope of delivery Number Designation Heat generator Unit mounting bracket Flue adapter 183,5 Gas stopcock Gas pipe 33,5 Condensate discharge hose 133,5 Mounting template Enclosed documentation... -
Page 12: Minimum Clearances
– Minimum clearances Standard flue terminal kits have an in-built fall back to the boiler to drain the condensate. These can be fitted level between the appliance and the termination position. All other extended flues must have a fall of at least 44 mm/m. - Page 13 6.6.2 Position of the air/flue terminal 6.6.2.1 Positioning the terminal of a fan-supported flue system Installation site Dimensions Adjacent to a boundary. 300 mm The dimension below eaves, balconies and car ports can be reduced to this value, as long as the flue terminal is 25 mm extended to clear any overhang.
- Page 14 Installation site Dimensions The dimension below eaves, balconies and car ports can be reduced to this value, as long as the flue terminal is 25 mm extended to clear any overhang. External flue joints must be sealed with suitable silicon sealant. Above adjacent ground or balcony.
- Page 15 6.6.3.3 Vertical Concentric Flue ⌀ 60/100 mm or 6.6.3 Flue Configuration Description ⌀ 80/125 mm (C33 type installation) 6.6.3.1 Horizontal Concentric Flue ⌀ 60/100 mm or ⌀ 80/125 mm (C13 type installation) Gasket (fitted) Consult the separate installation manual for air/flue gas sys- Note tems supplied with your appliance for all possibilities and as- If the terminal is at less than 1.80 m from the...
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Page 16: Using The Mounting Template
Removing/installing the front casing Boiler Final storey Inspection hatch Ground floor 6.9.1 Removing the front casing Note The flue connecting from the appliance to the flue system must be supplied from the manufacturer of the boiler. C43 flue systems must not be a 'pressurised sys- tem' but act under natural draught principles. - Page 17 6.10.2 Installing the side section ▶ Refit the components in the reverse order. 0020238195_07 ecoTEC plus Installation and maintenance instructions...
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Page 18: Installation
– Installation The flow rate specified in the technical data is reached. Preparing for installation Heating water supply in the open heating ▶ Make sure that the existing gas meter and the pipelines system are capable of passing the rate of gas supply required. ▶... -
Page 19: Heating Water Supply In The Sealed Heating System
Heating water supply in the sealed heating Note system A higher initial design pressure requires a larger volume expansion vessel. SUPPLY PIPE In GB, guidance on vessel sizing is also given in the cur- rent issue of BS 5449 and BS 7074 Part 1. In IE refer to the current edition of I.S. -
Page 20: Gas Connection
▶ Gas connection Connect a condensate discharge pipe (21.5 mm, not included in the scope of delivery) to the drain hose (2). ▶ During installation remove all burs from inside of cut pipe work and avoid excessive adhesive which may trap small pockets of water close to the pipe wall which can freeze and build into a larger ice plug. - Page 21 7.8.1.3 External termination to gulley or hopper 7.8.1.6 Internal termination downstream of sink waste Ø22mm 100mm ≤ 3 m Ø22mm Ø 32mm ≤ 3 m Ø32mm Best practice 7.8.1.4 Internal termination into combined sink waste Open end of pipe direct into gulley below ground level but above water level Susceptible to siphonage, must terminate in a gulley 100mm...
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Page 22: Flue Installation
7.8.1.9 Connection of condensate pump 7.10.1 Opening the electronics box Ø32mm ≥ 3 m Ø22mm Preferred option for external connection Flue installation 7.9.1 Installing and connecting the air/flue pipe 7.10.2 Cable route You can find out which air/flue pipes may be used by consulting the enclosed set-up instructions for the air/flue system. - Page 23 Use strain reliefs. should be readily accessible and preferably adjacent to the boiler. It should be identified as to its use. If required, shorten the connection cables. Provide one common power supply for the boiler and for the corresponding control: ≤...
- Page 24 ▶ 7.10.6 Connecting controls to the electronics Connect the control to the main plug X1. – Terminal assignment: L – Phase, N – neutral con- – earth ductor, ▶ Draw the end user's attention to the fact that the follow- ing features are present with this installation type.
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Page 25: Operation
Operation Operating concept The operating concept and the read-out and setting options of the end user level are described in the operating instruc- tions. An overview of the read-out and setting options for the in- staller level is included in the table in the appendix. Installer level –... -
Page 26: Start-Up
Start-up Total Water hardness at specific system volume heating > 20 l/kW output ≤ 20 l/kW Carrying out the initial start-up > 50 l/kW ≤ 50 l/kW Initial start-up must be carried out by a customer service mol/ mol/ mol/ technician or an authorised competent person using the CaCO₃... -
Page 27: Filling The Condensate Trap
Additives for frost protection intended to remain installation and open the purging valves on the radiators so that the contaminated water can completely drain. permanently in the installation – Close the drain cocks. Adey MC ZERO Refill the heating system with water. –... -
Page 28: Restarting The Installation Assistants
9.6.3 Purging Restarting the installation assistants Menu → Installer level → Start inst. assistant Unlike in the Check programmes menu, to purge the system, start check programme P.00 by pressing You can restart the installation assistant at any time by call- ing it up in the menu. - Page 29 Condition: Gas flow pressure not in the permissible range H gas in m³/h Qnw from the data plate −10% Nom. Caution. 15.3 1.62 1.70 1.46 Risk of material damage and operating 18.4 1.95 2.05 1.76 faults caused by incorrect gas connec- tion pressure.
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Page 30: Thoroughly Flushing The Heating Installation ("Hot")
9.13 Checking the heating mode Activate the heating mode on the user interface. Turn all thermostatic valves on the radiators until they are fully open. Allow the product to operate for at least 15 minutes. Purge the heating installation. Call up the Live Monitor. –... -
Page 31: 11 Handing Over To The End User
Set maximum burner anti-cycling time Flow [min] (target) [°C] 29.0 33.0 37.0 41.0 45.0 49.5 25.5 29.5 33.0 36.5 40.5 44.0 22.5 26.0 29.0 32.0 35.5 38.5 19.5 22.5 25.0 27.5 30.5 33.0 16.5 18.5 21.0 23.5 25.5 28.0 13.5 15.0 17.0 19.0... -
Page 32: 12 Inspection And Maintenance
12 Inspection and maintenance 12.5 Setting the CO₂ content Condition: The CO₂ content must be adjusted 12.1 Complete Service Interval Record section ▶ After servicing, complete the relevant Service Interval Record section of the Benchmark Checklist located on the inside back pages of this document. 12.2 Using original seals If you replace components, use only the enclosed original... -
Page 33: Cleaning The Heat Exchanger
Remove the air intake pipe (1). Remove the plugs from the gas valve assembly. Remove the gas-air mixture unit . Remove both burner seals (5) from the burner hood. 10. Remove the burner (4). 12.7 Cleaning the heat exchanger Check the heat exchanger for damage and dirt. If required, clean and replace the heat exchanger. -
Page 34: 12.10 Cleaning The Condensate Trap
12.12 Draining the product Check that the electrode ends (4) are undamaged. Check the electrode distance. Close the service valves of the product. – Clearance for the ignition electrodes: 3.5 to 4.5 mm Start check programme P.06. Make sure that the seal (5) is free from damage. Open the drain valves. -
Page 35: Preparing The Repair Work
13.5 Preparing the repair work Decommission the product. Disconnect the product from the electrical installation. Remove the front casing. Close the gas stopcock. Close the service valves in the heating flow and in the heating return. Close the service valve in the cold water pipe. Drain the product if you want to replace water-carrying components of the product. -
Page 36: Checking The Product For Leak-Tightness
Install the new PCB in such a way that it clicks into the ▶ groove at the bottom and into the clip at the top. Observe all relevant regulations. Plug in the PCB plugs. ▶ For detailed information refer to www.vaillant.co.uk. Close the electronics box. Installation and maintenance instructions ecoTEC plus 0020238195_07... -
Page 37: 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 38: B Installer Level - Overview
Maintenance work Interval Reassemble the product After each time maintenance work is carried out Open the service valves, carry out the required leak-tightness test Annually Fill the product/heating installation to the filling pressure specified for the Annually system Connect the product to the electrical installation Annually Run the test operation on the product/heating installation including hot Annually... - Page 39 Setting level Values Default Unit Increment, select, explanation setting Min. Max. – Auxiliary relay 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 40: C Overview Of Diagnostics Codes
Setting level Values Default Unit Increment, select, explanation setting Min. Max. – Auxiliary relay 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 41 Setting level Values Default set- Unit Increment, select, explanation Own setting ting Min. Max. – – d.10 Status of the internal Current value off / on pump in the heating circuit adjustable – – d.11 Status of the heating cir- Current value off / on cuit's shunt pump...
- Page 42 Setting level Values Default set- Unit Increment, select, explanation Own setting ting Min. Max. ℃ – – d.41 Heating return temperat- Current value adjustable – d.43 Heat curve Adjustable – d.45 Value for the base point Adjustable of the heat curve ℃...
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Page 43: D Status Codes - Overview
Setting level Values Default set- Unit Increment, select, explanation Own setting ting Min. Max. – – – – d.95 Software versions 1 = Main PCB Adjustable 2 = Interface PCB – – – – d.96 Reset to factory settings 0 = No Adjustable 1 = Yes ℃... -
Page 44: E Overview Of Fault Codes
Status code Meaning S.108 Purging the combustion chamber, fan in operation S.109 Product's standby mode activated Overview of fault codes Fault code Meaning Possible cause F.00 Fault: Flow temperature sensor NTC plug not plugged in or has come loose, multiple plug on the PCB not plugged in correctly, interruption in cable harness, NTC sensor defective F.01 Fault: Return temperature sensor... - Page 45 Fault code Meaning Possible cause F.83 Fault: Dry fire When the burner starts, the temperature change registered at the flow or return temperature sensor is non-existent or too small: Insufficient water in the product, the flow or return temperature sensor is not in the correct position on the pipe F.84 Fault: Flow/return temperature sensor...
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Page 46: F Wiring Diagram
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 Installation and maintenance instructions ecoTEC plus 0020238195_07... -
Page 47: G Wiring Diagram, 30 Kw
Wiring diagram, 30 kW 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 0020238195_07 ecoTEC plus Installation and maintenance instructions... -
Page 48: Commissioning Checklist
Commissioning Checklist Benchmark Commissioning & Warranty Validation Service Record It is a requirement that the boiler is installed and commissioned to the manufacturers’ instructions and the data fields on the commissioning checklist completed in full. To instigate the boiler warranty the boiler needs to be registered with the manufacturer within one month of the installation. - Page 49 GAS BOILER SYSTEM COMMISSIONING CHECKLIST & WARRANTY VALIDATION RECORD Address: Boiler make and model: Boiler serial number: Commissioned by (PRINT NAME): Gas Safe registration number: Company name: Telephone number: Company email: Company address: Commissioning date: Heating and hot water system complies with the appropriate Building Regulations? Time, temperature control and boiler interlock provided for central heating and hot water Boiler Plus requirements (tick the appropriate box(s)) Weather compensation...
- Page 50 SERVICE & INTERIM BOILER WORK RECORD It is recommended that your boiler and heating system are regularly serviced and maintained, in line with manufacturers’ instructions, and that the appropriate service / interim work record is completed. Service provider When completing a service record (as below), please ensure you have carried out the service as described in the manufacturers’ instructions. Always use the SERVICE/INTERIM WORK ON BOILER SERVICE/INTERIM WORK ON BOILER Date:...
- Page 51 SERVICE & INTERIM BOILER WORK RECORD It is recommended that your boiler and heating system are regularly serviced and maintained, in line with manufacturers’ instructions, and that the appropriate service / interim work record is completed. Service provider When completing a service record (as below), please ensure you have carried out the service as described in the manufacturers’ instructions. Always use the SERVICE/INTERIM WORK ON BOILER SERVICE/INTERIM WORK ON BOILER Date:...
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Page 52: I Commissioning Flow Chart
Commissioning Flow Chart 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... -
Page 53: Index
Index Ignition electrode, checking..........33 Inspection work ..............32 Additional relay..............28 Inspection work, completing ..........34 Air intake pipe, removing............. 32 Installation assistant, ending ..........28 Air/flue pipe, horizontal wall duct......... 15 Installation assistants, restarting ......... 28 Air/flue pipe, installing ............22 Installation, preparations ............. - Page 56 Supplier Vaillant Ltd. Nottingham Road Belper Derbyshire DE56 1JT Telephone 0330 100 3461 info@vaillant.co.uk www.vaillant.co.uk 0020238195_07 Publisher/manufacturer Vaillant GmbH Berghauser Str. 40 D-42859 Remscheid Tel. +492191 18 0 Fax +492191 18 2810 info@vaillant.de www.vaillant.de © These instructions, or parts thereof, are protected by copyright and may be reproduced or distributed only with the manufacturer's written consent.