Vaillant ecoTEC plus Installation And Maintenance Instructions Manual
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Summary of Contents for Vaillant ecoTEC plus
- Page 1 VUI 286/5-5 (H-GB) ecoTEC plus 938 en Installation and maintenance instructions...
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Page 2: Table Of Contents
Calling up the installer level ......... 27 Troubleshooting ..........41 Live Monitor (status codes) ......... 27 13.1 Checking service messages ........ 41 Setting the hot water temperature ....... 27 13.2 Eliminating faults..........41 Installation and maintenance instructions ecoTEC plus 0020244998_04... - Page 3 Function menu – Overview ....... 60 Wiring diagrams..........61 Wiring diagram, product with integrated domestic hot water generation, ≥ 37 kW ..... 61 Commissioning Checklist......... 63 Commissioning Flow Chart ......67 Index ................... 68 0020244998_04 ecoTEC plus Installation and maintenance instructions...
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Page 4: Safety
▶ Avoid rooms that smell of gas. beyond what is described here ▶ If possible, open doors and windows fully and ensure adequate ventilation. ▶ Do not use naked flames (e.g. lighters, matches). ▶ Do not smoke. Installation and maintenance instructions ecoTEC plus 0020244998_04... - Page 5 To prevent material damage to the flexible Unsuitable or insufficient combustion and gas pipe: room air may lead to material damage, but ▶ Never suspend the compact thermal also to life-threatening situations. module on the flexible gas pipe. 0020244998_04 ecoTEC plus Installation and maintenance instructions...
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Page 6: Regulations (Directives, Laws, Standards)
1.3.12 Risk of death from leaks if the product is installed below ground level Liquid gas accumulates at floor level. If the product is installed below ground level, liquid gas may accumulate at floor level if there Installation and maintenance instructions ecoTEC plus 0020244998_04... -
Page 7: 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 8: Technical Data
17 kg 60/40 °C VIHCL Nominal heat input ef- 98.0 % – ficiency (stationary) at Operating weight (with 51 kg 80/60 °C water) – 32 kg VIHCL Shift-load cylinder capa- 15 l city Installation and maintenance instructions ecoTEC plus 0020244998_04... -
Page 9: Notes On The Documentation
55 W isation that provides trusted energy saving advice to em- sumption power millions of people to lead affordable, low energy life- Max. electrical power 155 W styles. For more information visit energysavingtrust.org.uk consumption 0020244998_04 ecoTEC plus Installation and maintenance instructions... -
Page 10: Information On The Identification Plate
The serial number can be found on a plastic label behind the front flap and on the identification plate. Note The serial number can also be shown on the display of the product (→ Operating instructions). Installation and maintenance instructions ecoTEC plus 0020244998_04... -
Page 11: Safety Devices
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 12: Set-Up
- Bag with small parts Lower cover of heat generator Installation template Condensate drain hose Enclosed documentation Heating flow (22 × 1.5 Wall duct for flue pipe diameter) Product holder Hot water connection (15 × 1.5 diameter) Installation and maintenance instructions ecoTEC plus 0020244998_04... -
Page 13: Installation Site
A minimum clearance of 5 mm is maintained around the circumference of the flue (air intake). The combustible surface and fixings are suitable for supporting the load. The minimum clearances from the boiler case are main- tained. 0020244998_04 ecoTEC plus Installation and maintenance instructions... - Page 14 The flue cannot be lower than 1 metre from the top of a lightwell due to the build up of combustion products. – Dimensions from a flue terminal to a fanned air inlet to be determined by the ventilation equipment. Installation and maintenance instructions ecoTEC plus 0020244998_04...
- Page 15 The flue pipe must Adequately secured protrude beyond any overhang air/flue gas pipe You can use a plume management kit to enable the termination point to be positioned and directed away from the building fabric. 0020244998_04 ecoTEC plus Installation and maintenance instructions...
- Page 16 50 mm clearance from any part of the terminal and be central over the terminal. The guard should be similar to that shown in the figure. Pressure balancing Air-inlet pipe system Collector pipe Installation and maintenance instructions ecoTEC plus 0020244998_04...
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Page 17: Using The Installation Template
Install the reinforced product bracket (1) on the wall. ▶ ▶ Remove the front casing as shown in the illustration. Hang the shift-load cylinder on the product bracket from above using the hanging bracket. 0020244998_04 ecoTEC plus Installation and maintenance instructions... -
Page 18: Removing/Installing The Side Section
Always only remove one side section – never both side sections at the same time. ▶ Remove the side section as shown in the illustration. 6.10.2 Installing the side section ▶ Refit the components in the reverse order. Installation and maintenance instructions ecoTEC plus 0020244998_04... -
Page 19: Installation
11. Check the leak-tightness of the gas valve assembly using a pressure of ≤ 11 kPa (110 mbar). Make the water connections as shown in accordance with the relevant standards. 0020244998_04 ecoTEC plus Installation and maintenance instructions... -
Page 20: Installing Pipe Connections Between The Shift-Load Cylinder And The Heat Generator
▶ During installation remove all burs from inside of cut pipe work and avoid excessive adhesive which may trap small Installation and maintenance instructions ecoTEC plus 0020244998_04... - Page 21 ≤ 3 m Ø12 Ø 32mm Ground (either/or) Bottom of sealed tube Seal Limestone chippings Plastic tube, Hole depth 400 mm 100 mm diameter minimum Least preferred option, must not terminate in rain water drain 0020244998_04 ecoTEC plus Installation and maintenance instructions...
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Page 22: Installing The Discharge Pipe On The Expansion Relief Valve
Ensure the discharge pipe work is installed, routed and terminated correctly to minimise the risk of freezing up. Air break Using a pipe Using a tundish Installation and maintenance instructions ecoTEC plus 0020244998_04... -
Page 23: Connecting The Flexible Hose To The Expansion Relief Valve On The Shift-Load Cylinder
3 mm, e.g. fuse or cir- gas. cuit breaker). ▶ Secure against being switched back on Mineral-oil-based greases can damage the again. seals. ▶ Wait for at least 3 minutes until the capa- citors have discharged. 0020244998_04 ecoTEC plus Installation and maintenance instructions... - Page 24 Plug the sensor cable's plug X31 into the slot X31 (left- hand side of the PCB). 10. Secure the cables over the cable terminals in the elec- tronics box. Installation and maintenance instructions ecoTEC plus 0020244998_04...
- Page 25 3 mm (e.g. fuses or ponent in diagnostics code D.026. (→ Page 35) power switches). ▶ Use a flexible line for the power supply cable, which is routed through the grom- met into the product. 0020244998_04 ecoTEC plus Installation and maintenance instructions...
- Page 26 Connect the supply line for the external button using terminals 1 (0) and 6 (functional drawing) on the X41 edge connector, which is supplied with the controller. Plug the edge connector into the PCB slot X41. Installation and maintenance instructions ecoTEC plus 0020244998_04...
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Page 27: Operation
Anti-legionella measures in order to comply with the applicable regulations regarding legionella prevention. ▶ Set the hot water temperature. Condition: Water hardness: > 3.57 mol/m³ – Water temperature: ≤ 50 ℃ 0020244998_04 ecoTEC plus Installation and maintenance instructions... -
Page 28: Start-Up
– Electronics self-test 9.3.2 Filling mode Filling mode (check programme P.06) is activated automatic- ally in the installation assistant for as long as the filling mode appears on the display. Installation and maintenance instructions ecoTEC plus 0020244998_04... -
Page 29: Performing A Gas Family Check
It is not possible to perform CO₂ measure- CaCO₃ m³ CaCO₃ m³ CaCO₃ m³ ments during the gas family check. < 50 < 300 < 3 0.02 > 50 0.02 to ≤ 200 > 200 0.02 0.02 to ≤ 600 0020244998_04 ecoTEC plus Installation and maintenance instructions... -
Page 30: Filling The Condensate Trap
Connect a hose to the drain valve that is located at the lowest position in the heating system. Open the radiator valves and the drain valves so that the water can drain quickly. Start at the next point in the Installation and maintenance instructions ecoTEC plus 0020244998_04... -
Page 31: Filling The Heating Installation
Fit the double non-return valve (1) of the filling line to the cold water stop valve and secure the valve with the spring clip (2). To fill, first open the stop valve (3). 0020244998_04 ecoTEC plus Installation and maintenance instructions... - Page 32 Condition: The product design is not compatible with the local gas group Condition: Gas flow rate not in the permissible range ▶ Only Vaillant Service may perform a gas conversion. Check all of the piping and ensure that the gas flow rates are correct.
- Page 33 After performing the adjustments, tilt the air intake pipe back up. ▶ Check the CO₂ content again. ▶ If necessary, repeat the setting process. ▶ Set the CO₂ content (value with front casing removed) by turning the screw (2). 0020244998_04 ecoTEC plus Installation and maintenance instructions...
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Page 34: Thoroughly Flushing The Heating Installation ("Hot")
D.074. Overview of diagnostics codes (→ Page 51) ▶ Call up the Live Monitor. – Menu → Live Monitor ◁ If the hot water generation is working correctly, S.24 appears in the display. Installation and maintenance instructions ecoTEC plus 0020244998_04... -
Page 35: Adapting The Unit To The Heating Installation
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 20.5 22.5 10.5 11.5 13.0 14.5 15.5 17.0 10.0 11.0 11.5 0020244998_04 ecoTEC plus Installation and maintenance instructions... -
Page 36: Setting The Bypass Valve
(5 turns to the Default setting (250) left) 5 further turns to If noises are produced in 0.017 the left from the the radiators or radiator (170) mid-position valves ▶ Install the front casing. Installation and maintenance instructions ecoTEC plus 0020244998_04... -
Page 37: Inspection And Maintenance
Use only new seals and o'ring. Do not use additional Switch off the product using the on/off button. compounds. Close the gas stopcock. Remove the front casing. (→ Page 17) Hinge the electronics box forward. 0020244998_04 ecoTEC plus Installation and maintenance instructions... -
Page 38: Cleaning The Heat Exchanger
16. Fit a new burner flange seal. 17. Check the insulating mat on the burner flange and on the back panel of the heat exchanger. If you notice any signs of damage, replace the relevant insulating mat. Installation and maintenance instructions ecoTEC plus 0020244998_04... -
Page 39: 12.11 Cleaning The Condensate Trap
If water escapes from the valve of the expansion vessel, you must replace the expansion vessel. (→ Page 44) Fill the heating installation. (→ Page 31) 0020244998_04 ecoTEC plus Installation and maintenance instructions... -
Page 40: Checking The Pre-Charge Pressure Of The Shift-Load Cylinder Expansion Vessel
Check the filling pressure of the heating installation, top it up with heating water, if necessary, and purge it. Fill the heating installation. (→ Page 31) Purge the heating installation. (→ Page 31) Installation and maintenance instructions ecoTEC plus 0020244998_04... -
Page 41: 13 Troubleshooting
Undo the four screws (1) on the burner. Set the diagnostics code to 1, and confirm by pressing Remove the burner. Install a new seal (2) on the new burner. Install the compact thermal module. (→ Page 39) 0020244998_04 ecoTEC plus Installation and maintenance instructions... - Page 42 10. Remove the Venturi (3), including the gas connection pipe (1), from the fan by turning the bayonet fitting on the Venturi anti-clockwise as far as it goes and remov- ing it straight from the fan. Installation and maintenance instructions ecoTEC plus 0020244998_04...
- Page 43 Ensure that you use the correct gas injector (colour coding and position of pins on the underside of the gas injector). The colour of the gas injector must match the colour of the coding resistor on the PCB. 0020244998_04 ecoTEC plus Installation and maintenance instructions...
- Page 44 Unscrew the screw from the cover of the shift-load cyl- inder. Remove the cover. Remove the lower three screws (2) on the rear section of the retainer. Swing the retainer to the side around the top screw (1). Installation and maintenance instructions ecoTEC plus 0020244998_04...
- Page 45 14. Connect the pump's electrical wires in reverse order. In doing so, pay attention to the correct pipe routing. 15. Reinstall the drain pipe (1) and use new seals. 16. Fill and purge the heat generator and the shift-load cylinder. 0020244998_04 ecoTEC plus Installation and maintenance instructions...
- Page 46 Replace the PCB or display according to the assembly provided with the spare parts. and installation instructions supplied. Unscrew the screw from the cover of the shift-load cyl- inder and remove the cover. Installation and maintenance instructions ecoTEC plus 0020244998_04...
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Page 47: Completing Repair Work
Press the on/off button. ◁ The display goes out. ▶ Disconnect the product from the power grid. ▶ Close the gas stopcock. ▶ Close the cold-water isolation valve. ▶ Drain the product. (→ Page 39) 0020244998_04 ecoTEC plus Installation and maintenance instructions... -
Page 48: Appendix
Checking the pre-charge pressure of the expansion vessel at regular intervals Checking the pre-charge pressure in the shift-load cylinder expansion Annually vessel Reassemble the product After each time maintenance work is carried out Installation and maintenance instructions ecoTEC plus 0020244998_04... -
Page 49: B Installer Level - Overview
Product with domestic hot water generation or connected domestic hot water cylinder – – – Comfort mode On, Off ¹Fault lists are only displayed, and can only be deleted, if faults have occurred. 0020244998_04 ecoTEC plus Installation and maintenance instructions... - Page 50 – – Comfort mode On, Off – – Heating partial load Partial load only, full load only, auto Auto ¹Fault lists are only displayed, and can only be deleted, if faults have occurred. Installation and maintenance instructions ecoTEC plus 0020244998_04...
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Page 51: C Overview Of Diagnostics Codes
In °C; the maximum value that is set in D.071 and is Not ad- restricted by means of an eBUS control if such a control justable is connected 35 to 65 ℃ D.006 Outlet temperature target value Not ad- justable 0020244998_04 ecoTEC plus Installation and maintenance instructions... - Page 52 D.022 DHW demand On, Off Not ad- justable D.023 Heating mode status Heating on, heating off (summer mode) Not ad- justable D.025 Ext. eBUS signal: Cylinder char- On, Off Not ad- ging justable Installation and maintenance instructions ecoTEC plus 0020244998_04...
- Page 53 0 = Relay with disable facility 0 = Relay with disable 1 = PWM with disable facility facility D.047 Current outside temperature (with Vaillant weather-compensated control) Not ad- justable Actual value in °C 0020244998_04 ecoTEC plus Installation and maintenance instructions...
- Page 54 1 = VU 126/5-5 (H-GB) ecoTEC plus 612 3 = VU 156/5-5 (H-GB) ecoTEC plus 615 4 = VU 186/5-5 (H-GB) ecoTEC plus 618, VU 186/5-5 (P-GB) ecoTEC plus 618 9 = VU 246/5-5 (H-GB) ecoTEC plus 624 14 = VU 306/5-5 (H-GB) ecoTEC plus 630, VU 306/5-5...
- Page 55 Not ad- justable xx = Coding resistor 1 in cable harness for output range: 8 = VU 126/5-5 (H-GB) ecoTEC plus 612; VU 156/5-5 (H-GB) ecoTEC plus 615; VU 186/5-5 (H-GB) ecoTEC plus 618, VU 186/5-5 (P-GB) ecoTEC plus 618; VUW 196/5-5 (H-GB) ecoTEC plus 825 9 = VU 246/5-5 (H-GB) ecoTEC plus 624;...
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Page 56: D Status Codes - Overview
The system pressure is too high. S.42 Flue non-return flap Flue non-return flap return signal blocks burner operation (only in conjunction with the multi-functional closed module) or condensate pump defective, heat demand is blocked. Installation and maintenance instructions ecoTEC plus 0020244998_04... -
Page 57: E Overview Of Fault Codes
Maximum temperature at the Check: Flow temperature sensor (correct thermal connection), ature limiter flow/return temperature sensor cable harness, sufficient purging. is too high when the safety cut- out function is operating using the NTC 0020244998_04 ecoTEC plus Installation and maintenance instructions... - Page 58 F.65 Fault: Electronics temp. Electronics defective or too hot Check: PCB. due to external influences If required, reduce the environmental temperature. ▶ F.67 Fault: Electronics/flame Implausible flame signal Check: Cable harness, flame monitor, PCB. Installation and maintenance instructions ecoTEC plus 0020244998_04...
- Page 59 Venturi (blockage). Do not use any lubricants on the O-ring in the Venturi. ▶ F.94 Fault: Vortex and differen- Sensors return implausible val- Check: Cable harness, plug, sensors. tial pressure ues. 0020244998_04 ecoTEC plus Installation and maintenance instructions...
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Page 60: F Check Programmes - Overview
The circulation pump is switched on and off. T.06 External pump The external pump is switched on and off. T.08 Burner The product starts up and switches to minimum load. The flow temperature is shown in the display. Installation and maintenance instructions ecoTEC plus 0020244998_04... -
Page 61: H Wiring Diagrams
Wiring diagrams Wiring diagram, product with integrated domestic hot water generation, ≥ 37 kW +24V Hallsignal Masse X100 X40 X51 X100 230V~ X101 Main PCB Gas valve assembly Control panel PCB Mass flow sensor 0020244998_04 ecoTEC plus Installation and maintenance instructions... - Page 62 Flow temperature sensor Gas group coding resistor Additional relay (select via D.026) Surface-mounted thermostat/burner off Internal pump 24 V DC room thermostat Ignition electrode Bus connection (digital room thermostat/control) Depending on product type Installation and maintenance instructions ecoTEC plus 0020244998_04...
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Page 63: I Commissioning Checklist
* All installations in England and Wales must be notified to Local Authority Building Control (LABC) either directly or through a Competent Persons Scheme. A Building Regulations Compliance Certificate will then be issued to the customer. © Heating and Hotwater Industry Council (HHIC) www.centralheating.co.uk 0020244998_04 ecoTEC plus Installation and maintenance instructions... - Page 64 The operation of the boiler and system controls have been demonstrated to and understood by the customer The manufacturers’ literature, including Benchmark Checklist and Service Record, has been explained and left with the customer Commissioning Engineer’s signature Customer’s signature © Heating and Hotwater Industry Council (HHIC) www.centralheating.co.uk Installation and maintenance instructions ecoTEC plus 0020244998_04...
- Page 65 © Heating and Hotwater Industry Council (HHIC) www.centralheating.co.uk 0020244998_04 ecoTEC plus Installation and maintenance instructions...
- Page 66 © Heating and Hotwater Industry Council (HHIC) www.centralheating.co.uk Installation and maintenance instructions ecoTEC plus 0020244998_04...
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Page 67: J Commissioning Flow Chart
Ensure test points are capped, boiler case is correctly replaced and all other commissioning procedures are completed. Complete Benchmark Checklist, recording CO and combustion ratio readings as required. 0020244998_04 ecoTEC plus Installation and maintenance instructions... -
Page 68: Index
Filling mode ................. 28 Product, draining ..............39 Flexible hose, expansion relief valve on the shift-load Product, switching off ............47 cylinder ................23 Pump output, setting ............35 Frost protection ..............11 Installation and maintenance instructions ecoTEC plus 0020244998_04... - Page 69 Unit connection piece for the air/flue pipe, replacing ..23 Unit connection piece, 80/125 mm diameter, installing ..23 Validity of the instructions............9 Venturi ................. 42 Venturi, replacing ..............43 Weight ................. 17 0020244998_04 ecoTEC plus Installation and maintenance instructions...
- Page 72 Supplier Vaillant Ltd. Nottingham Road Belper Derbyshire DE56 1JT Telephone 0330 100 3461 info@vaillant.co.uk www.vaillant.co.uk 0020244998_04 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.