Vaillant ecoTEC pro Installation And Maintenance Instructions Manual
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Summary of Contents for Vaillant ecoTEC pro
- Page 1 VUW ..6/5-3 en Installation and maintenance instructions...
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Page 2: Table Of Contents
Carrying out the initial start-up......25 Inspection and maintenance work ....38 Checking and treating the heating water/filling Overview of diagnostics codes ......39 and supplementary water ........25 Filling the condensate trap ........26 Installation and maintenance instructions ecoTEC pro 0020209589_04... - Page 3 Overview of fault codes ........44 Check programmes – Overview ....... 46 Wiring diagrams..........47 Product connection diagram with integrated hot water generation ..........47 Commissioning Checklist......... 48 Commissioning Flow Chart ......52 Index ................... 53 0020209589_04 ecoTEC pro 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 pro 0020209589_04... - Page 5 Both unsuitable heating water and air in the heating water may cause material damage to the product and in the heat generator circuit. ▶ Check the quality of the heating water. (→ Page 25) 0020209589_04 ecoTEC pro Installation and maintenance instructions...
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Page 6: 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 Installation and maintenance instructions ecoTEC pro 0020209589_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
Approx. condensate rate 2.5 l/h (pH value 3.5 to 4.0) in Approx. net weight 39 kg 50/30 °C heating mode Remaining feed head of 0.025 MPa pump (at nominal circula- (0.250 bar) tion water volume) Installation and maintenance instructions ecoTEC pro 0020209589_04... -
Page 9: Notes On The Documentation
Permissible total overpressure during domestic hot water generation Max. flow temperature max. ED 92/42 Current efficiency directive fulfilled with 4* rating V Hz Mains voltage and mains frequency Max. electrical power consumption IP rating 0020209589_04 ecoTEC pro Installation and maintenance instructions... -
Page 10: Serial Number
If the boiler does not resume normal operation press the ible with the gas group at the installation site. reset button. If the boiler does not resume normal operation after this call your Installation/Servicing company or Vaillant service. Serial number 5.6.2... -
Page 11: Set-Up
(15 × 1.5 connection, 19 mm diameter) diameter Gas connection Condensate trap (15 × 1.5 diameter) Cold water connection Drain pipework connec- (15 × 1.5 diameter) tion, expansion relief valve, heating, 15 mm diameter 0020209589_04 ecoTEC pro Installation and maintenance instructions... -
Page 12: Installation Site
As a consequence the heat loss from the appliance casing during operation is very low. Compartment ventilation is not required as the products are only certified, and can only be fitted with a concentric flue system. Installation and maintenance instructions ecoTEC pro 0020209589_04... - Page 13 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. 0020209589_04 ecoTEC pro Installation and maintenance instructions...
- Page 14 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. Installation and maintenance instructions ecoTEC pro 0020209589_04...
- Page 15 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 0020209589_04 ecoTEC pro Installation and maintenance instructions...
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Page 16: Using The Installation Template
If required, ensure that mounting apparatus on-site has sufficient load-bearing capacity. Wall-mount the product as described. Install the product bracket (1) on the wall. Hang the product on the product bracket from above using the hanging bracket. Installation and maintenance instructions ecoTEC pro 0020209589_04... -
Page 17: 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. 0020209589_04 ecoTEC pro Installation and maintenance instructions... -
Page 18: 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. Installation and maintenance instructions ecoTEC pro 0020209589_04... -
Page 19: Connecting The Heating Flow And Heating Return
Ensure that the condensate discharge pipe terminates in a suitable location. Further information can be obtained from BS 6798 Specification for installation of gas–fired boilers of rated input not exceeding 70 kW net. 0020209589_04 ecoTEC pro Installation and maintenance instructions... - Page 20 7.7.1.3 External termination to gulley or hopper Least preferred option, must not terminate in rain water drain 7.7.1.6 Internal termination downstream of sink waste Ø22mm ≤ 3 m Ø22mm 100mm Ø 32mm Best practice ≤ 3 m Ø32mm Installation and maintenance instructions ecoTEC pro 0020209589_04...
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Page 21: Flue Installation
Insert the alternative connection piece. In doing so, pay attention to the latching lugs. Turn the connection piece clockwise until it clicks into position. ≥ 3 m Ø22mm Preferred option for external connection 0020209589_04 ecoTEC pro Installation and maintenance instructions... -
Page 22: Electrical Installation
12. Make sure that access to the power supply is always side of the product on the left. available and is not covered or blocked. Use strain reliefs. If required, shorten the connection cables. Installation and maintenance instructions ecoTEC pro 0020209589_04... - Page 23 Remove the bridge and connect the limit thermostat to the Burner off connection. Close the electronics box. For multi-circuit controllers, change D.018 from Eco (in- termittently operating pump) to Comfort (continuously operating pump). (→ Page 29) 0020209589_04 ecoTEC pro Installation and maintenance instructions...
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Page 24: Operation
(F) and to return to the diagnostics codes (D). to set the required value and confirm by pressing Confirm by pressing ( ). Press to cancel a setting or exit the installer level. Installation and maintenance instructions ecoTEC pro 0020209589_04... -
Page 25: Start-Up
▶ Inform the end user about the measures required for frost – If the pH value of the heating water is less than 8.2 or protection. more than 10.0. 0020209589_04 ecoTEC pro Installation and maintenance instructions... -
Page 26: Filling The Condensate Trap
10. Purge the lowest radiator until water flows out of the purging valve without bubbles. 11. Purge all other radiators until the entire heating system has been filled with water. Installation and maintenance instructions ecoTEC pro 0020209589_04... -
Page 27: Purging The Heating Installation
Condition: The product design is not compatible with the local gas group rates have been corrected. Only Vaillant Service may perform a gas conversion. Condition: Gas flow rate in the permissible range If a gas conversion to liquefied petroleum gas has been car- ▶... - Page 28 CO value with full load tion pressure. ≤ 0.0031 ≤ 0.0026 CO/CO₂ If the gas connection pressure lies outside the permissible range, this can cause oper- ating faults in and damage to the product. Installation and maintenance instructions ecoTEC pro 0020209589_04...
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Page 29: Thoroughly Flushing The Heating Installation ("Hot")
Fill the heating system again with water as described in Filling the heating installation (→ Page 26) and Purging the heating installation (→ Page 27). Re-fill the system until the system design pressure of 0,1 MPa (1,0 bar) is attained. 0020209589_04 ecoTEC pro Installation and maintenance instructions... -
Page 30: Setting The Maintenance Interval
1800 h 15.0 kW 3 ‑ 4 1900 h 3 ‑ 4 2600 h 20.0 kW 4 ‑ 5 2700 h 3 ‑ 4 2800 h 25.0 kW 4 ‑ 6 2900 h Installation and maintenance instructions ecoTEC pro 0020209589_04... -
Page 31: 11 Handing Over To The End User
▶ Inform the end user about measures taken to ensure the supply of combustion air and flue gas guiding, and instruct the operator that he must not make any changes. 0020209589_04 ecoTEC pro Installation and maintenance instructions... -
Page 32: Inspection And Maintenance
(1) from the intake stub. Use only new seals and o'ring. Do not use additional Unscrew either the union nut on the gas valve assembly compounds. (3) or the union nut (4) between the gas pipes. Installation and maintenance instructions ecoTEC pro 0020209589_04... -
Page 33: Cleaning The Heat Exchanger
Do not point the water jet directly at the insulating mat (2) on the back of the heat ex- changer. ◁ The water flows out of the heat exchanger through the condensate siphon. 0020209589_04 ecoTEC pro Installation and maintenance instructions... -
Page 34: 12.10 Installing The Compact Thermal Module
Check that the sealing ring in the air intake pipe is posi- tioned correctly in the seal seat. Reconnect the air intake pipe to the intake stub. Secure the air intake pipe with the retaining screw. 10. Check the gas flow pressure. Installation and maintenance instructions ecoTEC pro 0020209589_04... -
Page 35: 12.16 Checking The Product For Leak-Tightness
Set the diagnostics code to 1, and confirm by pressing Undo the four screws (1) on the burner. Remove the burner. Install a new seal (2) on the new burner. Install the compact thermal module. (→ Page 34) 0020209589_04 ecoTEC pro Installation and maintenance instructions... - Page 36 12. Replace the seals. 14. Ensure that the order in which the three screws are screwed in between the fan and the mixture pipe cor- responds to the numbering (3), (2) and (4). Installation and maintenance instructions ecoTEC pro 0020209589_04...
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Page 37: Completing Repair Work
Replace the PCB and display according to the assembly and installation instructions supplied. Close the electronics box. Press the on/off button on the product. (→ Page 26) ◁ You are automatically taken to D.093 to set the device specific number. 0020209589_04 ecoTEC pro Installation and maintenance instructions... -
Page 38: Appendix
If the water volume is insufficient (domestic hot water) or the outlet tem- at regular intervals perature is insufficient, check the secondary heat exchanger Reassemble the product After each time maintenance work is carried out Opening the service valves Annually Installation and maintenance instructions ecoTEC pro 0020209589_04... -
Page 39: B Overview Of Diagnostics Codes
0 = Auto 1 = 53 2 = 60 3 = 70 4 = 85 5 = 100 D.015 Pump speed actual value Actual value for internal high-efficiency pump in % Not ad- justable 0020209589_04 ecoTEC pro Installation and maintenance instructions... - Page 40 5 = External solenoid valve 6 = External fault message 7 = Solar pump (not active) 8 = eBUS remote control (not active) 9 = Anti-legionella pump (not active) 10 = Solar valve (not active) Installation and maintenance instructions ecoTEC pro 0020209589_04...
- Page 41 D.067 Remaining anti-cycl. time for heat- In minutes Not ad- justable D.068 Number of first start attempts Number of unsuccessful ignitions Not ad- justable D.069 Number of second start attempts Number of unsuccessful ignitions Not ad- justable 0020209589_04 ecoTEC pro Installation and maintenance instructions...
- Page 42 7 = VUW 246/5-3 (H-GB) ecoTEC pro 24 22 = VUW 286/5-3 (H-GB) ecoTEC pro 28; VUW 286/5-3 (P-GB) ecoTEC pro 28 26 = ecoTEC pro 30 H combi A VUW GB 306/5-3 D.077 DHW partial load Adjustable cylinder charging output in kW D.078 DHW max.
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Page 43: C 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. 0020209589_04 ecoTEC pro Installation and maintenance instructions... -
Page 44: D Overview Of Fault Codes
Check: Plug, cable to the heating pump, air/insufficient water incr. too fast in the heating circuit, internal air vent (function), heating pump (system pressure too low, temperature gradient too great on heating flow, non-return valve). Activate check programme P.0. Installation and maintenance instructions ecoTEC pro 0020209589_04... - Page 45 UK link box is connected Check: Accessory (configuration/electrical connection). sensor on ext. contr. without the domestic hot water The unit displays a fault, but the unit has not malfunctioned. temperature sensor being bridged 0020209589_04 ecoTEC pro Installation and maintenance instructions...
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Page 46: E Check Programmes - Overview
After successful ignition, the product is operated at minimum heat input. P.06 Filling mode The prioritising diverter valve is moved to the mid-position. The burner and pump are switched off (to fill or drain the product). Installation and maintenance instructions ecoTEC pro 0020209589_04... -
Page 47: F Wiring Diagrams
(optional, external), DCF receiver Water pressure sensor Circulation pump remote control Impeller sensor Gas valve Warm start sensor Return temperature sensor Internal pump Flow temperature sensor Ignition electrode Depending on product type Contact thermostat/burner off 0020209589_04 ecoTEC pro Installation and maintenance instructions... -
Page 48: 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 Installation and maintenance instructions ecoTEC pro 0020209589_04... - Page 49 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 0020209589_04 ecoTEC pro Installation and maintenance instructions...
- Page 50 © Heating and Hotwater Industry Council (HHIC) www.centralheating.co.uk Installation and maintenance instructions ecoTEC pro 0020209589_04...
- Page 51 © Heating and Hotwater Industry Council (HHIC) www.centralheating.co.uk 0020209589_04 ecoTEC pro Installation and maintenance instructions...
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Page 52: H 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. Installation and maintenance instructions ecoTEC pro 0020209589_04... -
Page 53: Index
Remaining feed head, pump ..........30 Fault codes................35 Removing, compact thermal module........32 Fault memory, calling up ............. 35 Repair work, completing............37 Fault memory, deleting............35 Repair work, preparing ..........32, 35 Fault messages ..............35 0020209589_04 ecoTEC pro Installation and maintenance instructions... - Page 54 Unit connection piece for the air/flue pipe, 80/125 mm diameter ................21 Unit connection piece for the air/flue pipe, replacing ..21 Unit connection piece, removing ......... 21 Validity of the instructions............9 Weight ................. 16 Installation and maintenance instructions ecoTEC pro 0020209589_04...
- Page 56 Supplier Vaillant Ltd. Nottingham Road Belper Derbyshire DE56 1JT Telephone 0330 100 3461 info@vaillant.co.uk www.vaillant.co.uk 0020209589_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.