Vaillant ecoTEC plus SERIES Installation And Maintenance Instructions Manual
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- Installation and maintenance instructions manual (72 pages) ,
- Installation and maintenance manual (56 pages) ,
- Instructions for installation and servicing (52 pages)
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Summary of Contents for Vaillant ecoTEC plus SERIES
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Page 1: Ecotec Plus
Installation and maintenance instructions For the competent person Installation and maintenance instructions ecoTEC plus GB, IE... -
Page 2: Table Of Contents
Table of Contents BEFORE PROCEEDING - ENSURE BOILER IS Gas installation ..............21 CORRECT FOR GAS GROUP SUPPLIED! Preparing for installation ..........21 Connecting the gas pipe ..........21 Hydraulic installation ..........22 Table of Contents Preparing for installation ..........22 Connecting the hot and cold water (VUW boiler) ..23 Connecting the domestic hot water cylinder ..23 Notes on the documentation ........4 Connecting the heating flow and heating return...23... - Page 3 Flushing the system for the first time ("cold") ..42 Troubleshooting ............67 10.8 Avoiding low water pressure ........43 13.1 Contact Vaillant Service Solutions 10.8.1 Top up VUW boilers using a filling device ....43 (0870 6060 777) ............67 10.9 Fill and purge the hot water system ......
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Page 4: Notes On The Documentation
Symbols used Identification plate The symbols used in the text are explained below: The identification plate of the Vaillant ecoTEC plus is Symbol that denotes useful tips and infor- attached to the underside of the boiler in the factory. mation The article number of the gas fired wall hung boiler can be found in the serial number. -
Page 5: Benchmark
837 (VUW GB 376/5-5) 2H3P IE (Ireland) 1.2 Type overview Vaillant Ltd. supports the Benchmark Initiative. You will find the Benchmark Logbook on the last pages of this instruction manual. It is very important that this document be filled out prop-... -
Page 6: Safety
Safety Safety Intended use The Vaillant ecoTEC plus boilers are state-of-the-art units which have been constructed in accordance with recognised Safety and warning information safety regulations. Nevertheless, there is still a risk of injury or death to the operator or others or of damage to the >... -
Page 7: Important Information Regarding Propane-Fired Boilers
Safety Material damage caused by corrosion Only IE: The installation must comply with the current Ver- sion of I.S.813 "Domestic Gas Installations" and the current To prevent corrosion on the boiler and also on the air/flue Building Regulations. gas duct, note the following: >... -
Page 8: General Requirements
Safety General requirements – BS EN 14336 Heating systems in buildings. Installation and commissioning of water based heating systems. – BS 5440 – 1 Installation of flues and ventilation for gas appliances of rated input not exceeding 70 kW* 2.5.1 Related documents –... -
Page 9: Gas Supply
Safety provided that it is modified for the purpose). Details of – for larger systems IGE/UP/1A and essential features of cupboard/compartment design includ- – for LPG installations refer to BS 5482 - 1 or ing airing cupboard installations are given in BS 6891. In IE –... -
Page 10: Pressure Relief Valve
1) on systems with circulation water heaters and for systems with tions without exception. electric heating elements Vaillant accepts no liability for the compatibility of any addi- 2) from the specific system volume (nominal capacity in litres/heating tive or its effectiveness in the rest of the heating installa- output;... -
Page 11: Venting
Safety tems, is preset to 3 bar and is fitted with a 15 mm compres- sion connection for the discharge pipe, whose diameter must not be less than 15 mm. The pressure relief valve must not be used for draining purposes. 2.5.9 Venting The boiler is fitted with an automatic air vent. -
Page 12: Description Of The Appliance
Description of the appliance Description of the appliance Design 3.1 Functional elements of the VU system boiler 3.2 Functional elements of the VUW combination boiler Gas valve Gas valve 2 Water pressure sensor 2 Water pressure sensor 3 Venturi with mass flow sensor 3 Venturi with mass flow sensor 4 Heat exchanger 4 Heat exchanger... -
Page 13: Before Proceeding - Ensure Boiler Is Correct For Gas Group Supplied
CORRECT FOR GAS GROUP SUPPLIED! by 65 mm. Scope of delivery The work described in this section must only be carried out by a competent person. The Vaillant ecoTEC plus is delivered pre-mounted in a packaging unit. Accessories 4.2.1 Unpacking the boiler 4.1.1... -
Page 14: Disposing Of The Packaging
Installation Item Quantity Description 4.2.3 Disposing of the packaging Wall bracket Boiler > Dispose of the cardboard packaging used on the eco- Lower cover TEC plus at a cardboard recycling site. Supply pipes (gas, heating, expansion relief > Dispose of the plastic film and plastic filling at an appro- valve) priate plastic recycling site. - Page 15 Installation > If removing boiler from truck straddle the load and tilt Unpacking of appliance from carton. > Recommend 2 persons unpack appliance from carton. forwards to facilitate secure grip. > Ensure safe lifting techniques are used – keep back >...
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Page 16: Requirements For The Installation Site
Installation > Always use assistance if required. flooring, lighting and other factors, and appropriate > Recommend wear suitable cut resistant gloves with good measures taken. grip to protect against sharp edges and ensure good grip when handling appliance. Requirements for the installation site Positioning of Appliance for Final Installation –... - Page 17 Installation – The position of the fixing holes for the hanging bracket. – The position of the connections. – The position of the wall breakthrough of the air/flue gas duct. Position the installation template vertically over the instal- lation site. >...
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Page 18: Dimension Drawing And Connection Measurements
Installation Dimension drawing and connection measurements 4.4 Connection measurements in mm Dimension B ecoTEC plus installation depth [mm] Wall breakthrough for air/flue gas duct 2 Hanging bracket 612 (VU GB 126/5-5) 615 (VU GB 156/5-5) 3 Heating flow (22 x 1.5) 618 (VU GB 186/5-5) 4 Hot water connection (15 x 1.5), only for VUW boilers 624 (VU GB 246/5-5) 5 Gas connection (15 x 1.5;... -
Page 19: Wall-Mounting The Boiler
Installation Wall-mounting the boiler Removing/fitting the front casing Danger! Risk of death if the load-bearing capacity of the fixing elements used is insuffi- cient! If the fixing elements or wall do not have sufficient load-bearing capacity, the boiler can come loose and fall down. This may also cause leaks in the gas line, which is potentially fatal. -
Page 20: Removing/Fitting The Side Section
Installation > Unhook the restrictor strap (1.) of the electronics box at Removing/fitting the side section the required side. > Unscrew the two screws (2.) from the top and bottom of You can also remove a side section for installation or main- tenance purposes. -
Page 21: Gas Installation
Gas installation Gas installation Connecting the gas pipe The work described in this section must only be carried out by a competent person. Preparing for installation Danger! Risk of death from incorrectly installed gas system! An incorrect gas installation can result in leaks and an explosion. -
Page 22: Hydraulic Installation
The Vaillant ecoTEC boiler is equipped with a 10 l expansion or about the building. This may be out- vessel with a gas-side filling pressure of 0.075 MPa side or to a suitable open drain in the (0.75 bar), which is suitable for a closed heating system... -
Page 23: Connecting The Hot And Cold Water (Vuw Boiler)
Hydraulic installation > Make the water connections as shown. Connecting the hot and cold water (VUW boiler) 6.4.2 VU boiler 6.1 Fitting the hot and cold water connection > Make the water connections as shown. 6.3 Fitting the heating flow and heating return (VU boiler) Connecting the domestic hot water cylinder >... -
Page 24: Connecting The Discharge Pipe To The Expansion Relief Valve On The Boiler
Hydraulic installation Connecting the discharge pipe to the to the discharge pipe. This minimises the risk of the dis- expansion relief valve on the boiler charge pipe freezing up. The expansion relief valve for the heating installation is integrated in the boiler. >... -
Page 25: Flue Gas Installation
The use of other accessories can cause personal injury and material damage as well as operating faults. 7.2 Scope of delivery of vertical air/flue gas duct > Only use genuine Vaillant air/flue gas Article number 0020060570 and 0020065937 ducts. Optional 125 mm air/flue gas duct... -
Page 26: Flue Termination
Flue gas installation Flue termination The following details refer to all flue systems. The terminal must be positioned such that the prod- ucts of combustion can disperse freely at all times. A plume of water vapour will sometimes be visible from the flue terminal. - Page 27 Flue gas installation Minimum Location dimensions Directly below an opening, air brick, opening win- 300 mm dows, etc. B Above an opening, air brick, opening window, etc. 300 mm Horizontally to an opening, air brick, opening win- 300 mm dow, etc. Below temperature-sensitive building components 75 mm e.g.
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Page 28: Electrical Installation
Electrical installation Electrical installation Preparing for installation Danger! Risk of death from electric shock! Touching live connections can cause seri- ous personal injury. > Switch off the power supply. > Secure the power supply against being switched on again. Danger! Risk of electrocution as a result of an improper electrical connection! An improper electrical connection may neg-... -
Page 29: Connecting The Controller
Electrical installation Caution. Risk of damage caused by incorrect installation. A mains voltage at the incorrect plug termi- nals on the ProE system can destroy the electronics. Burner 24V= > Only connect the mains connection cable 230V~ 230V~ to the terminals marked for the purpose. Caution. -
Page 30: Connecting Controllers To The Electronic System
Electrical installation > If you connect a weather compensator or room tempera- 8.4.2 Connecting controllers to the electronic system ture controller via eBUS, then bridge input RT 24 V, if no bridge exists. > Close the electronics box (¬ section 8.1). Caution. >... -
Page 31: Connect Vr 40 - "2 From 7" Multi-Functional Module
You can connect additional components to the ecoTEC plus comes loose. using the Vaillant multi-functional module 2 in 7 (accesso- > Only strip the outer sheathing of flexible ries). > Fit the components in accordance with the correspond- cables for a maximum of 3 cm to prevent... -
Page 32: Connection Diagrams
Electrical installation Connection diagrams Pump PWM signal Display Connection Gas valve Holding magnet Stepper motor white Mass flow sensor Diverter valve * Water pressure sensor blue Cylinder sensor (optional) white Cylinder contact "C1-C2" white Flow sensor Return sensor blue ... -
Page 33: Ignition Electrode
Electrical installation Pump PWM signal Display Connection Gas valve Holding magnet Stepper motor white Mass flow sensor Diverter valve * Water pressure sensor blue Cylinder sensor (optional) white Cylinder contact "C1-C2" white Flow sensor Return sensor blue Safety fuse pink Coding resistor, output range... -
Page 34: Mains Connection
Electrical installation Pump PWM signal Display Connection Gas valve Holding magnet Stepper motor white Mass flow sensor Diverter valve Water pressure sensor Impeller blue sensor Warm start sensor orange Hot water sensor violet Flow sensor Return sensor blue ... - Page 35 Electrical installation Pump PWM signal Display Connection Gas valve Holding magnet Stepper motor white Mass flow sensor Diverter valve Water pressure sensor Impeller blue sensor Warm start sensor orange Hot water sensor violet Flow sensor Return sensor blue ...
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Page 36: Operation
Operation Operation The Vaillant ecoTEC plus boiler is fitted with a digital infor- mation and analysis system (DIA). If additional settings are required, which have not been configured using the installa- tion assistant, you can view and modify further parameters using the DIA. -
Page 37: Overview Of The Menu Structure
Operation Overview of the menu structure Menu Information Reset burner off time Installer level Back Select Enter code Installer level F.00 Fault list F.75 Interruption Test programmes Fehler Flow sensor Appliance config. Pumpe/Wassermangel Back Back Select Installer level Test programmes Gas type check Fault list Gas type check... - Page 38 Operation Appliance config. Comfort operation Target flow temp. Comfort on DHW temperature Comfort mode Cancel Back Select Appliance config. D.026 D.026 DHW temperature Auxiliary relay Zusatzrelais Comfort mode Auxiliary relay Circulation pump externe Pumpe Back Select Back Cancel Appliance config. D.027 D.027 Comfort mode...
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Page 39: Start-Up
Start-up Start-up from the boiler are blocked. This status remains until the installation assistant is completed or cancelled. If you do not confirm the start of the installation assistant, Danger! it will be closed 10 seconds after being switched on and the Risk of poisoning and burns caused by basic display will appear. -
Page 40: Hot Water Temperature
"Appliance configuration" menu point. Menu ¬ Installer level ¬ Appliance configuration The heating partial load of the Vaillant ecoTEC plus boiler is All of the setting options for more complex systems can be factory set to "auto". This means that the boiler independ- found in the diagnosis menu (¬ section 11). -
Page 41: Preparing The Heating Water
Start-up If the boiler is in error condition, you cannot Display Meaning start any test programs. You can detect an error P.00 Purging test program condition by the fault symbol shown in the left The heating circuit and the hot water circuit are purged bottom corner of the display. -
Page 42: Filling The Heating Installation
Start-up > Remove the front casing from the boiler > Use the display to monitor the rising filling pressure in (¬ section 4.7). the heating installation. > Top up with water until the pressure gauge display is in the middle of the grey area and the required filling pres- sure appears on the display. -
Page 43: Avoiding Low Water Pressure
Start-up > Check the pressure in the heating system and top up > After filling, close both stop valves and disconnect the with water if necessary. filling device by pulling the double non-return valve from > Close the filling valve and the cold water valve. the cold water stop valve. -
Page 44: Checking The Gas Setting
Checking the gas setting If the boiler version does not correspond to the local gas family: > Call Vaillant Service Solutions (0870 6060 777); Gas Caution. conversions must only be carried out by Vaillant Service Risk of damage caused by an unauthor- Solutions. -
Page 45: Checking The Gas Flow Rate
If the measured gas flow rate lies outside the tolerance lim- its specified in ¬ table 10.2, do not operate the boiler and inform the Vaillant Service Solutions (0870 6060 777). If the measured gas flow rate is within the tolerance limits shown in ¬ table 10.2, then proceed as follows:... -
Page 46: Carrying Out A Full Function Test
Start-up – terminating test program P.01 as described in ¬ section 10.4. – Only for VUW-boilers: Allow the boiler to cool down by turning off water taps and allow pump overrun to operate for a minimum of two minutes. > Close the gas isolation valve of the boiler. >... -
Page 47: Checking The Heating Mode
Start-up > Start up the boiler in accordance with the relevant oper- S.04 ating instructions. Heating mode If you have still not successfully completed the installation assistant and subsequently confirmed this, it will be Burner on restarted when you switch on the boiler. Before continuing, complete the installation assistant (¬ section 10.2). -
Page 48: Final Flush Of The Heating System ("Hot")
Start-up S.24 DHW mode Burner on Back 10.11 Display during cylinder charging (VU boilers only) > If you have connected the controller for the heating installation using a two-wire eBUS line, then set the hot water temperature at the boiler to the maximum possible temperature (¬ table 11.1). -
Page 49: Adapting The Boiler To The Heating Installation
Adapting the boiler to the heating installation Adapting the boiler to the heating installation The installation assistant is started when the boiler is switched on for the first time (¬ section 10.2). If you have already filled the heating installation and termi- nated the installation assistant, but wish to set the most important system parameters again, you can also call up the "Appliance configuration"... - Page 50 Adapting the boiler to the heating installation Factory Your own Code Parameters Adjustable values setting setting D.000 Heating partial load Adjustable heating partial load in kW Auto Auto: Boiler automatically adjusts max. partial load to cur- rent system demand D.001 Overrun time of internal heating pump 1 - 60 min 5 min...
- Page 51 Relay with PWM with disable facility disable facility D.047 Outside temperature (with weather-con- Actual value in °C Not adjustable trolled Vaillant controller) D.050 Offset for minimum speed In rpm, setting range: 0 to 3000 Nominal value set in factory D.051...
- Page 52 Adapting the boiler to the heating installation Factory Your own Code Parameter Adjustable values setting setting D.060 Number of temperature limiter shut- Number of shutdowns Not adjustable downs D.061 Number of ignition device cutoffs Number of unsuccessful ignitions in the last attempt Not adjustable D.064 Average ignition time...
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Page 53: Setting The Heating Partial Load
11.1 Diagnosis codes (continued) 11.1.1 Setting the heating partial load The heating partial load of the Vaillant ecoTEC plus boiler is factory set to "auto". This means that the boiler independ- ently determines the optimum heating output depending on the current heat demand of the system. A setting is nor- mally no longer required. -
Page 54: Setting The Maximum Flow Temperature
Adapting the boiler to the heating installation Eco (intermittently operating pump) 11.1.5 Burner anti-cycling time Pump operating mode Eco is the factory setting. This pump operating mode is useful for removing residual heat after Setting the burner anti-cycling time hot water generation when the heat demand is extremely low and large temperature spreads exist between the hot To prevent frequent switching on and off of the burner and water generation and heating mode target values. -
Page 55: Setting The Maintenance Interval
Adapting the boiler to the heating installation Reset remaining burner anti-cycling time 11.1.7 Setting the pump output You have two options to reset the remaining burner anti- cycling time: The ecoTEC plus boiler is equipped with a 2-stage pump. The output of the two-stage pump can be adjusted to the 1st option requirements of the heating installation. -
Page 56: Handing Over The Boiler To The Operator
It is strongly recommended that a maintenance contract be taken out to ensure regular maintenance. Important information is available from Vaillant Service Solutions (0870 6060 777). > Fully complete the Benchmark gas boiler commissioning checklist which will be found at the back of this manual. -
Page 57: Inspection And Maintenance
Neglected inspection and maintenance works or not observing the stated inspec- You must carry out an annual inspection of the Vaillant eco- tion and maintenance intervals can inter- TEC. fere with the operational safety of the It is possible to perform a quick, accurate inspection with-... -
Page 58: Safety Instructions
Inspection and maintenance During any inspection and maintenance or after change of Always perform the following steps after performing any parts of the combustion circuit, the following must be inspection or maintenance work: > Always use new seals and O-rings when parts are checked: –... -
Page 59: Adjusting The Co
Inspection and maintenance The boiler is fitted with a flue gas analysis point (1). A suitable flue gas analyser can be con- nected to this point to establish the combustion performance of the boiler. > Remove the front casing (¬ section 4.7). >... -
Page 60: Performing The Gas Family Check
(yellow: H-gas, higher than allowed in ¬ table 12.1, call grey: liquid gas) and damage. > Repeat gas family check. the Vaillant Service Solutions (0870 > Damaged or incorrect gas F.93 Gas Combustion 6060 777). -
Page 61: Inspection And Maintenance Work Steps
Inspection and maintenance 12.2 Inspection and maintenance work steps Column 2 Maintenance Column 1 must be carried Inspection must No. Activity out at regular be carried out intervals – but each year no longer than 5 years Check the air flue gas installation for leaks and for proper fixation and ensure it is not blocked or damaged and is fitted correctly, complying with the relevant installation instructions. -
Page 62: Filling The Boiler And The Heating Installation
Inspection and maintenance 12.2.1 Filling the boiler and the heating Display Test programs Action installation T.01 Check internal You can switch the internal pump on pump and off. A description of how to fill the boiler and the heating instal- T.02 Check 3-way You can move the diverter valve to... - Page 63 Inspection and maintenance > Close the gas isolator cock on the boiler. > Close the service valves on the boiler. > Remove the front casing from the boiler (¬ section 4.7). > Fold the electronics box forwards (¬ section 8.2). 12.4 Removing the compact thermal module The plugs at the fan motor and the venturi have latching lugs with which they engage in the slot.
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Page 64: Cleaning The Heat Exchanger
Inspection and maintenance 12.4.2 Cleaning the heat exchanger 12.4.3 Checking the burner Caution. Risk of damage from water spray. If you fail to protect the electronics box adequately, water can penetrate the box during cleaning and may damage the elec- tronics. -
Page 65: Clean The Filter In The Cold Water Inlet (Vuw Boilers Only)
Inspection and maintenance > Drain the hot water from the boiler. > Undo the nut (1, ¬ fig. 12.8) of the cold water supply line from the casing of the boiler. 12.7 Cleaning the condensate siphon > Remove the lower part (1) of the condensate siphon by turning the bayonet fitting anti-clockwise. -
Page 66: Checking The Charge Pressure Of The Expansion Vessel
Inspection and maintenance > Open the gas isolator cock on the boiler and ensure there are no leaks. > Check that the sealing ring in the air intake pipe is posi- tioned correctly in the seal seat. > Insert the air intake pipe (1, ¬ fig. 12.3) back into the intake stub. -
Page 67: Troubleshooting
(0870 6060 777) S.01 Heating mode fan start-up S.02 Heating mode pump flow > If you contact Vaillant Service Solutions (0870 6060 S.03 Heating mode, ignition 777) or your Vaillant service partner, if possible, please S.04 Heating mode, burner on mention S.05... -
Page 68: Service Messages
> If you are unable to remedy the fault and the fault reoc- demands are blocked curs despite having carried out several resets, contact Vaillant customer service Vaillant Service Solutions 13.1 Status codes (continuation) (0870 6060 777). 13.2.3 Service messages 13.2.6 Querying the fault memory... -
Page 69: Overview Of Fault Codes
Troubleshooting 13.2.8 Overview of fault codes Code Meaning Cause F.00 Flow temperature sensor interruption NTC plug not plugged in or has come loose, multiple plug on the PCB not plugged in correctly, interruption in cable harness, NTC defective F.01 Return temperature sensor interruption NTC plug not plugged in or has come loose, multiple plug on the PCB not plugged in correctly, interruption in cable harness, NTC defective F.02... - Page 70 Troubleshooting Code Meaning Cause F.49 eBUS fault Short circuit on eBUS, eBUS overload or two power supplies with different polarities on the eBUS F.52 Mass flow sensor connection fault Mass flow sensor not connected/disconnected, plug not connected or incorrectly connected F.53 Mass flow sensor fault Mass flow sensor faulty, filter below venturi filter cap wet or blocked...
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Page 71: Using The Function Menu
Troubleshooting Code Meaning Cause F.93 Gas group fault Combustion quality outside the permitted range: Wrong gas restrictor, recirculation, wrong gas group, internal pressure measuring point in ven- turi blocked (do not use lubricant on O-ring in venturi.). Commu- No communication with the PCB Communication fault between display and PCB in the electronics box nication fault... -
Page 72: Replacing Components
The work described in this section must only be carried out by an approved competent person. route (¬ section 12.1.5). > Only use genuine Vaillant spare parts for repairs . > Check the boiler for gas leaks. > Reattach the front casing (¬ section 4.7). -
Page 73: Replacing The Fan
Replacing components 14.3 Replacing the fan 14.3 Removing the gas valve and venturi from fan > Remove the entire fan/venturi/gas valve unit from the 14.2 Removing the fan boiler. > Remove the air intake pipe (¬ section 12.4.1). > Unscrew the fixing screw (2, ¬ fig. 14.3) of the gas valve >... -
Page 74: Replacing The Gas Valve
Replacing components > Replace the defective fan. 14.4 Replacing the gas valve Caution. Risk of material damage caused by mak- ing unauthorised settings. Modifications to the gas pressure regulator on the gas valve can destroy the gas valve and cause operating faults on the boiler. >... -
Page 75: Replacing The Venturi Including The Mass Flow Sensor
Replacing components > Remove the air intake pipe (¬ section 12.4.1). The plug on the venturi has latching lugs with > Remove the plug from the venturi sensor (1, ¬ fig. 14.9). which it engages in the slot. You have to release > Unscrew the cap nut (3 ¬ fig. 14.9) of the gas connecting the latching lug by pushing it in to pull off the plug. -
Page 76: Replacing The Expansion Vessel
Replacing components Caution. 14.7 Replacing the heat exchanger Risk of damage to boiler and possible malfunctions. The use of lubricant can block function- Caution. related channels in the venturi. Risk of damage to the heat exchanger. > Never use lubricant when installing the >... -
Page 77: Replacing The Pcb And/Or The Display
Replacing components > Fill and purge the boiler and, if necessary, the heating installation (¬ section 10.7). 14.8 Replacing the PCB and/or the display Danger! Risk of death from electric shock! Mains connection terminals L and N remain live even if the continuous voltage on/off switch is turned off! >... -
Page 78: Replacing Either The Display Or The Pcb
Replacing components Language 14.8.1 Replacing either the display or the PCB 02 English > Replace the PCB or display according to the assembly and installation instructions supplied. Cancel 14.15 Setting the language Burner 24V= 230V~ 230V~ If you are replacing both components at the same time (spare part case), the boiler switches directly to the menu for selecting the language after switching on. -
Page 79: Decommissioning
Decommissioning Decommissioning 15.3 Disposing of the boiler The Vaillant ecoTEC plus boiler consists primarily of materi- als that can be recycled. 15.1 Temporarily shutting down the boiler The boiler and its accessories must not be disposed of with household waste. -
Page 80: Warranty And Customer Service
Registering with us Registration is simple. Just complete the Guarantee Regis- tration Card and return to Vaillant within 30 days of instal- lation. Your details will then be automatically registered within the Vaillant scheme. Note: No receipt will be issued. -
Page 81: Technical Data
Technical data Technical data 612 (VU 615 (VU 618 (VU 624 (VU 630 (VU 637 (VU ecoTEC plus Unit 126/5-5) 156/5-5) 186/5-5) 246/5-5) 306/5-5) 376/5-5) Nominal heat output range P at 50/30 °C 3.2 - 12.9 3.2 - 16.1 4.1 - 19.3 5.6 - 25.7 6.2 - 32.1 6.9 - 39.6... - Page 82 Technical data 824 (VUW GB 831 (VUW GB 837 (VUW GB ecoTEC plus Unit 246/5-5) 316/5-5) 376/5-5) Nominal heat output range P at 50/30 °C 4.1 - 20.4 5.6 - 25.7 6.9 - 30.1 Nominal heat output range P at 80/60 °C 3.8 - 19.0 5.2 - 24.0 6.4 - 28.0...
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Page 83: Glossary
Due to the additional condensation heat used, the cal- culated values can exceed 100%. Digital information and Analysis system (DIA) The Vaillant ecoTEC plus boiler is fitted with a digital infor- mation and analysis system (DIA). If additional settings are Installation and maintenance instructions ecoTEC plus 0020116700_01... -
Page 84: Appendix
Appendix Appendix Installation, Commissioning and Service Record Installation and maintenance instructions ecoTEC plus 0020116700_01... -
Page 85: Benchmark Log Book
Benchmark Log Book Failure to install and commission according to the manufacturer’s instructions and complete this Benchmark Commissioning Checklist will invalidate the warranty. This does not affect the customer’s statutory rights. 20 Benchmark Log Book If yes, and if required by the manufacturer, has a water scale reducer been fitted? CONDENSING BOILERS ONLY The condensate drain has been installed in accordance with the manufacturer’s instructions and/or BS5546/BS6798 If the condensate pipe terminates externally has the pipe diameter been increased and weatherproof insulation fitted? -
Page 86: Service Record
Service Record Benchmark Log Book It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed. Service Provider Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions. -
Page 87: Index
Index Index Accessories..................13 Diagnosis codes............49, 50, 51, 52 Air/flue gas duct ..............25, 83 DIA system..................83 Air/flue system ................25 Disposal Article numbers ................4 Boiler ..................79 Auxiliary relay..............30, 40, 51 Packaging ................. 14 Domestic hot water cylinder ........23, 52, 61 Draining Boiler .................. - Page 88 Pump operating mode ............50, 53 Type overview ................. 5 Pump overrun ................53 Purge Heating installation ............... 42 Vaillant customer service ............80 Wall-mounting Boiler ..................19 Water pressure ..............43, 67 Water pressure sensor ..........43, 68, 69 Wiring diagram ................
- Page 92 Supplier Manufacturer...
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