Vaillant ecoTEC VU 466/4 Installation And Maintenance Instructions Manual
Gas fired wall hung high efficiency boiler
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Summary of Contents for Vaillant ecoTEC VU 466/4
- Page 1 For the heating engineer Installation and maintenance instructions ecoTEC Gas fired wall hung high efficiency boiler VU 466/4...
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Page 2: Table Of Contents
6.4.2 Cylinder charging ............29 3.2.3 Gas supply ..............Handing over the boiler to the operator .... 29 Air/flue gas duct ............Vaillant warranty............29 3.3.1 Standard 125 mm air/flue gas duct ...... 3.3.2 Flue termination ............Adapting the boiler to the Air supply .............. -
Page 3: Notes On The Documentation 1
Replacing the heat exchanger ....... 50 Danger! 10.5 Replacing PCB and display ........51 Immediate risk of serious injury or death! Vaillant Service ..........51 Danger! Danger of death by electric shock! Recycling and disposal ........51 12.1 Boiler ................51 Danger! 12.2... -
Page 4: Description Of The Boiler
2 Description of the boiler Description of the boiler Design Fig. 2.1 Functional components Legend: Connection for the air/flue gas duct Note! 2 Heat exchanger When using accessories observe the minimum 3 Compact thermal module gaps/mounting clearances (see Chapter 4.5). 4 Flow rate sensor 5 Fan 6 Water pressure sensor... -
Page 5: Type Summary
Improper use or unsuitable tools can cause damage, such as gas or water leaks. Intended use The Vaillant ecoTEC boiler has been constructed using 3.1.2 Gas odour state-of-the-art technology in accordance with If you smell gas, the following safety instructions must recognised safety regulations. -
Page 6: Changes To The Surroundings Of The Boiler
3 Safety instructions and regulations 3.1.3 Changes to the surroundings of the boiler IGE/UP2 Gas installation pipework, boosters and Changes may not be made to the following equipment: compressors on industrial and commercial – the heating appliance, premises. IGE/UP10 Installation of gas –... -
Page 7: Gas Supply
Vertical flues must not terminate within For installations in cascade arrangement using the 600 mm of an openable window, air vent or any appliance type B23p a common non-Vaillant flue system other ventilation terminal. serving more than one appliance shall be used. The requirements of the flue installation instructions must be met. -
Page 8: 3 Safety Instructions And Regulations
3 Safety instructions and regulations D, E Fig. 3.3 Termination of the air/flue gas duct The flue system shall be so placed or shielded as to Note! prevent ignition or damage to any part of the building. In addition, the terminal should not be nearer than 300 mm to an opening in the building Minimum fabric formed for the purpose of... -
Page 9: Air Supply
Safety instructions and regulations 3 Balcony/eaves Gutter Flue pipe must project Flue pipe beyond every overhang adequately fixed Fig. 3.4 Termination of air/flue gas duct under balcony or eaves Air supply Detailed recommendations for air supply are given in BS 5440: Part 2. It is not necessary to have an air vent in the room or internal space in which the boiler is installed. -
Page 10: Assembly
Caution! Scope of delivery Do not install the boiler in rooms prone to frost. The Vaillant ecoTEC is delivered pre-mounted in a In rooms with aggressive steam or dust, the package unit. boiler must be operated room sealed! Check that all parts have been delivered and are intact (see Fig. -
Page 11: Dimension Drawing And Connection Dimensions
Assembly 4 Dimension drawing and connection dimensions Ø 80/125 Ø20, R1 Rp 1 Rp 1 5, 8 Fig. 4.2 Connection dimensions in mm Legend: Flue gas connection, 80/125 mm Note! diameter, dimension A (hanging bracket – centre of air/flue gas When using accessories observe the minimum pipe) with 87°... -
Page 12: Required Minimum Gaps/Installation Clearances
4 Assembly Required minimum gaps/ Mounting the boiler installation clearances For the installation/assembly of the boiler as well as for Caution! carrying out future maintenance tasks, you need the When assembling the boiler make sure that the minimum gaps and installation clearances given below: fixing point has a sufficient load-bearing capacity. -
Page 13: Removing/Attaching The Front Casing
Danger! Danger of injury to persons and/or material damage due to improper installation! The Vaillant ecoTEC boiler may only be installed by a recognised skilled trade company. who also assumes the responsibility for proper installing and initial start-up of the boiler. -
Page 14: Heating Mode
For more detailed information on examples of systems and system equipment contact your Vaillant sales support point. Caution! The following system diagrams are schematic representations. -
Page 15: Cylinder Charging Mode
Installation 5 Hydraulic schematic drawing: The charging circuit connection downstream of the low Heating circuit connection using low loss header loss header enables the choice of an individual cylinder size and of a charging pump. Note! Observe that non-return valves or mixer circuits may be required in order to eliminate cross-flow to other circuits or the effects of high temperatures from the charging circuit. -
Page 16: Heating Mode And Cylinder Charging Mode
5 Installation The low loss header ensures, in conjunction with the One direct heating circuit and one hot water cylinder boiler circulation pump, that a sufficiently high minimum (including charging pump and non-return valve) can be quantity of water is always circulating through the connected downstream of the low loss header to the boiler. -
Page 17: Gas Connection
Ensure strainless assembly of the supply lines damage due to improper installation! to avoid leakages in the heating installation! The Vaillant ecoTEC boiler may only be installed by a recognised skilled trade company The boiler is connected to the heating flow and return who also assumes the responsibility for proper via service valves. -
Page 18: Expansion Relief Valve (Safety Group), Heating Installation
5 Installation Expansion relief valve (safety group), heating Condensate drainage pipework installation Fig. 5.11 Condensate drainage pipework Fig. 5.10 Fitting the expansion relief valve Legend: a Internal stackpipe The ecoTEC is equipped ex factory with connections for b Internal drainage system a safety group: c Gully •... -
Page 19: Electrical Connection
Installation 5 The connection to the stack should not be made in a Electrical connection way that could cause cross flow into any other branch pipe, or from that branch pipe into the condensate Danger! drainage pipework. This can be achieved by Risk of fatal electric shock through contact maintaining an offset between branch pipes of at least with live connections! -
Page 20: Connecting Controllers
5 Installation • Dismantle the supply line over a length of approximately 2 - 3 cm and strip the insulation off the wires. Caution! Supplying power to the wrong plug terminals of the Pro E system can destroy the electronics. Only connect a 230 Vac live supply to boiler terminal connections marked LNE. -
Page 21: Connecting A Low Loss Header Sensor
2 (see Chapter 9.1.2). VR40 - "2 in 7“ multifunctional module If you wish to connect additional components this can be done using the Vaillant VR40 - "2 in 7" multifunctional module. Note! Please observe the separate manual attached to the VR40 - "2 in 7"... -
Page 22: Wiring Diagrams
5 Installation 5.8.5 Wiring diagrams X 11 brown Cylinder thermostat (connection) “C1-C2” black Cylinder orange NTC sensor violet black P Water pressure sensor green green Flow rate sensor Signal black blue Earth black Hall signal grau PWM signal +24V natural Flow temperature sensor black black... - Page 23 Installation 5 230V~ Additional relay (e.g. external heating pump) (adjustable in d.26, see table 9.3) Internal pump Cylinder charging pump Boiler enable connection (factory link fitted) 230 volt mains input Optional ext. controller/room thermostat 7-8-9 pink (continuous, analogue) Bus connection for optional accesories Safety circuit connection Earth Earth...
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Page 24: Start-Up
Sentinel X500 and Fernox can result in material damage or even injury or Alphi-11 have no known incompatibility issues death. with our boilers. Vaillant cannot guarantee the compatibility and effectiveness of these Note! products in the rest of the heating installation... -
Page 25: Required
Start-up 6 If the heating installation serves several floors, the Note! values for the water pressure in the system may need Use the check program P.0 to bleed the heating to be higher (to avoid the ingress of air). installation: The boiler does not start up. The •... -
Page 26: Filling The Condensate Siphon
6 Start-up 6.2.3 Filling the condensate siphon • Adjust the gas setting as described below (see sections 6.3.1 to 6.3.3). The combustion of this boiler has been checked, adjusted and preset at the factory for operation on the type of gas defined on the identification plate. No measurement of the combustion is necessary to set up the boiler. -
Page 27: Checking The Gas Flow Rate
Table 6.1, do not operate • With the boiler operating at full load check that the the boiler and inform the Vaillant Service Solutions gas inlet working pressure at the reference test point (0870 6060 777). -
Page 28: Checking The Appliance Function
• Commission the boiler in accordance with the cannot correct the failure, notify the gas supply instructions in the relevant operating manual. company or the Vaillant Service Solutions team and • Check the tightness of the gas supply line, flue gas proceed as follows: installation, heating installation and hot water pipes. -
Page 29: Cylinder Charging
Vaillant warranty Vaillant provides a full parts and labour warranty for this appliance. The appliance must be installed by a suitably competent person in accordance with the Gas Safety (Installation and Use) Regulations 1998, and the manufacturer’s... -
Page 30: Adapting The Boiler To The Heating Installation
7 Adapting the boiler to the heating installation Adapting the boiler to the heating Table 7.1 shows only those diagnosis points where modifications are possible. All the other diagnosis points installation are only required for diagnostics and fault repair The ecoTEC boilers are equipped with a Digital (see Chapter 9). - Page 31 Adapting the boiler to the heating installation 7 Factory Boiler-specific Display Meaning Adjustable parameters setting setting d. 0 Heating partial load 12.5 - 45 kW 35 kW d. 1 Overrun time of internal pump for heat- 2 - 60 min 5 mins ing mode d.
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Page 32: Setting The Heating Partial Load
7 Adapting the boiler to the heating installation 7.2.1 Setting the heating partial load The output of the boilers is set at 35 kW in the factory. You can specify a value that corresponds to the kW output of the boiler under diagnosis point "d. 0“. 7.2.2 Setting of pump overrun and pump operating mode The pump overrun time for the heating operation is set... -
Page 33: Determination Of Maintenance Interval/Maintenance Display
Adapting the boiler to the heating installation 7 Set maximum burner anti-cycling time [min] (target) Flow [°C] 10,0 15,0 20,0 25,0 30,0 35,0 40,0 45,0 50,0 55,0 60,0 14,0 18,5 23,0 27,5 32,0 36,5 41,0 45,0 50,0 54,5 12,5 16,5 20,5 25,0 29,0... -
Page 34: Inspection And Maintenance
To ensure the faultless operation, long term availability - The person carrying out a combustion measurement of all functions and long working life of your Vaillant must be assessed as competent in the use of a flue boiler and to prevent modifications to the approved se- gas analyser and the interpretation of the results. -
Page 35: Safety Instructions
Inspection and maintenance 8 - The gas inlet working pressure at maximum rate as • Bleeding the heating installation (see section 6.2, described in section 6.3.3. Filling the system). - The gas flow rates as described in section 6.3.2. • Open the gas isolation valve. - Correctness of electrical, water and gas connections. -
Page 36: Adjusting The Co (Or The Air Ratio)
Table 8.1, call the If the flue gas value needs to be adjusted, Vaillant Service Solutions. • unfasten the screw (Fig. 8.1, 2) and • Do not start up the boiler! •... -
Page 37: Inspection And Maintenance Work Steps
Inspection and maintenance 8 8.1.5 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 38: Filling/Draining The Boiler And Heating Installation
8 Inspection and maintenance Filling/draining the boiler and heating installation 8.2.1 Filling the boiler and the heating installation A description of how to fill the boiler and heating installation is provided in Chapter 6.2. 8.2.2 Draining of the boiler • Close the service valves of the boiler. •... -
Page 39: Cleaning The Heat Exchanger
Inspection and maintenance 8 Caution! Damage to gas supply! Under no circumstance may the compact thermal module dangle on the flexible corrugated gas pipe. Fig. 8.4 Cleaning the heat exchanger • Dismount the compact thermal module as described under 8.3.1. •... -
Page 40: Installing The Compact Thermal Module
8 Inspection and maintenance 8.3.4 Installing the compact thermal module Cleaning the condensate siphon • Renew the seals (1) and (3) in the burner door (see Fig. 8.5). Danger! Danger of combustion and damage due to escaping hot flue gases! Both seals (1) and (2) and the self-locking nuts on the burner door must be replaced each time the burner door is opened (e.g. -
Page 41: Cleaning The Condensate Ducts
Inspection and maintenance 8 Cleaning the condensate ducts Fig. 8.10 Cleaning the filter Fig. 8.8 Dismounting the condensate siphon 8.6.1 Cleaning the filter • Completely remove the condensate siphon to clean You can clean or replace the filter (5) in the air the condensate ducts by pulling out the clamp (1). -
Page 42: Checking Gas Connection Pressure (Gas Inlet Working Pressure)
Whenever possible, please quote the fault message displayed (F.xx) and the status of the Checking gas connection pressure boiler (S.xx) when contacting the Vaillant (gas inlet working pressure) customer service or your Vaillant service To check the connection pressure proceed as described partner. -
Page 43: Diagnosis Codes
Troubleshooting 9 9.1.2 Diagnosis codes Display Meaning In the diagnosis mode, you can change certain Heating mode parameters or display more information. Heating no heat demand The diagnosis information is divided into two diagnosis Heating mode fan start-up levels. The 2 diagnosis level can be reached only after Heating mode pump pre-run entering a password. - Page 44 °C d.44 Digitalised ionisation voltage Display range 0 to 102, >80 no flame, <40 good flame display d.47 Outside temperature (with weather-controlled Vaillant Actual value in °C controller) d.76 Boiler variant (display): Device specific number (DSN) d.90 Status digital regulator 1 = detected, 0 = not detected (eBUS Address <=10)
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Page 45: Diagnosis Codes For Diagnosis Level 2
Troubleshooting 9 Display Meaning Display value/adjustable value d.14 Pump speed target value Target value of internal pump in % Possible settings: 0 = auto (factory setting) 1 = 53% 2 = 60% 3 = 70% 4 = 85% 5 = 100% d.17 Heating flow/return regulation changeover 0 = flow, 1 = return (factory setting: 0) -
Page 46: Fault Messages
9 Troubleshooting Display Meaning Display value/adjustable value d.81 Operating hours hot water generation in h d.82 Burner start-ups in heating mode Number/100 (3 equals 300) d.83 Burner start-ups in hot water mode Number/100 (3 equals 300) d.84 Maintenance indicator: Number of hours until the next Setting range: 0 to 3000 h and "-“... - Page 47 Troubleshooting 9 Code Meaning Cause F. 0 Break Flow NTC 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. 1 Break Return NTC 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.10...
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Page 48: Check Programs
9 Troubleshooting Code Meaning Cause F.74 Failure Water pressure sensor signal outside correct Line to water pressure sensor has short-circuited at 5V/24V range (too high) or internal failure in water pressure sensor F.75 Failure Pump/water lack Water pressure sensor and/or pump defective, air in heating installation, too little water in boiler;... -
Page 49: Replacing Components 10
Replacing components 10 10 Replacing components 10.2 Replacing the burner The tasks listed below in this section may be carried out Danger! only by a qualified heating engineer. Before replacing the component, observe the • Only use genuine spare parts for repairs. safety information in Chapter 10.1. -
Page 50: Replacing The Heat Exchanger
10 Replacing components 10.4 Replacing the heat exchanger Danger! Before replacing the component, observe the safety information in Chapter 10.1. • Disconnect the boiler from the power mains as described in Chapter 10.1, and close the gas isolation valve. • Close the service valves in the heating flow and return and drain the boiler. -
Page 51: Replacing Pcb And Display
Danger! Vaillant Applied System Sales Risk of fatal electric shock through contact Vaillant Ltd., Unit D1 Lowfields Business Park, Elland. with live connections! West Yorkshire. HX5 9DG Disconnect the boiler from the power mains by pulling out the mains plug or deenergising the... -
Page 52: Technical Data
13 Technical data 13 Technical data ecoTEC VU GB 466/4-5 H unit Heat Output Range (heating 50/30 °C) 12,9 - 46,4 Heat Output Range (heating 80/60 °C) 12,3 - 44,1 Maximum Heat Input (Net) Net Efficiency at 100% load 98,4 Net Efficiency at 30% load 108,3 SEDBUK rating... -
Page 54: Required
BENCHMARK No. GAS BOILER Please affix the label from the COMMISSIONING CHECKLIST rear cover of the control box over this area. NOTIFICATION No. CONTROLS To comply with the Building Regulations, each section must have a tick in one or other of the boxes TIME &... -
Page 55: Service Interval Record
SERVICE INTERVAL RECORD It is recommended that your heating system is serviced regularly and that you complete the appropriate Service Interval Record Below. Service Provider. Before completing the appropriate Service Interval Record below, please ensure you have carried out the service as described in the boiler manufacturer’s instructions.
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