Vaillant ecoTEC plus Instructions For Installation And Servicing
Wall hung open vent condensing boiler
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- Installation and maintenance instructions manual (92 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
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Page 1: Ecotec Plus
For the installer Instructions for installation and servicing ecoTEC plus Wall hung open vent condensing boiler... -
Page 2: Table Of Contents
Sheet metal parts..... . ecoTEC plus boilers .... - Page 3 Packaging......Vaillant service ......
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Page 4: Introduction
The domestic hot water can only be adjusted on the throughout the boilers entire instruction pack. boiler if it is installed with a Vaillant uniSTOR unvented We assume no liability for any damage caused by cylinder and relevant controls. Once the controls are set the boiler operates automatically. -
Page 5: General Information
The boiler is supplied factory set for use on Natural • Do not use naked flames, such as matches or Gas (G20). The ecoTEC plus boilers can be field cigarette lighters. adjusted for use on LPG (propane G31), see section •... -
Page 6: Protection Against Freezing
If you have a sealed water system contact your in the countries of destination. installation/ servicing company as draining, refilling To obtain service, please call your installer or Vaillant and pressurising MUST be carried out by a competent Service Solutions (0870 6060 777). -
Page 7: Statutory Requirements
It is important that no alteration is made to the boiler, Appliance Gas council numbers without permission, in writing, from Vaillant. ecoTEC plus 415 41-044-53 Any alteration that is not approved by Vaillant, could ecoTEC plus 418 41-044-54 invalidate the warranty and could also infringe the ecoTEC plus 428 41-044-55 current issue of the Statutory Requirements. -
Page 8: Boiler Specifications
125 mAT 125 mAT 125 mAT Minimum flow rate of water L/min. 10.8 12.9 20.3 27.2 through the boiler Weight Electrical supply 230/~50 230/~50 230/~50 230/~50 External fuse Power input Case height Case width Case depth Installation and Servicing ecoTEC plus... -
Page 9: Dimensions
7 Condensate drain outlet connection (Ø 21) 2.1.3 Installation Legend: 1 Flue pipe connection 2 Fan 3 Gas valve 4 Electronics box 5 Burner module 6 Ignition electrode Fig. 2.2 Function elements of boiler 7 Condense trap Installation and Servicing ecoTEC plus... -
Page 10: General Requirements
Preliminary remarks for room sealed spanners (not pipe wrench, or extensions, etc.). appliances Incorrect use and/or unsuitable tools can lead This appliance should only be installed with a Vaillant to damage being caused (e.g. gas or water flue system. leakage)! Install the flue system as detailed in the separate flue installation instructions supplied with this boiler. -
Page 11: Gas Supply
(15 mm). The complete installation must be checked for leaks and purged as described in BS 6891. Danger! Vaillant appliances are certified only for use with genuine Vaillant flue pipes. Only use genuine Vaillant flue pipes. Malfunctions can occur if you use other accessories. -
Page 12: Flue Termination
Vertically from a terminal on the same wall 1500 for cooling purposes. Horizontally from a terminal on the same wall Distance from adjacent wall for vertical Flue Table 3.1 Flue terminal position for a fan assisted concentric flue Installation and Servicing ecoTEC plus... -
Page 13: Domestic Hot Water Cylinder
Unvented hot water cylinder 3.14 Pump specification The ecoTEC plus can be connected to an unvented The pump should be fitted on the flow pipe from the hot water cylinder. Vaillant offer a range of cylinders boiler and have isolating valves each side. - Page 14 3 General requirements ecoTEC plus 415 pressure loss graph ecoTEC plus 428 pressure loss graph ecoTEC plus 418 pressure loss graph ecoTEC plus 438 pressure loss graph Fig. 3.8 Pressure loss Installation and Servicing ecoTEC plus...
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Page 15: Open Vented Water System
The cold feed must be 15mm minimum size. The vent must rise continuously and be unrestricted. It is important that the relative positions of the pump, cold feed and open vent are as shown in fig 3.9. Fig. 3.9 Open vented system Installation and Servicing ecoTEC plus... -
Page 16: Sealed Water Systems
BS5449 and filling loop. BS7074 Part 1. Example: For an initial design pressure of 0.7 bar, the minimum total vessel volume required is 0.063 x Total System Volume. Fig. 3.10 Typical installation Installation and Servicing ecoTEC plus... -
Page 17: Boiler Installation Sequence
Institute of Gas Engineers document IGE/UP/7/1998. If in doubt seek advice from the local gas undertaking or Vaillant. A removable compartment door can be placed at least 5mm in front of the appliance... -
Page 18: Contents Included With Delivery
4 Boiler installation sequence 4.1.4 Contents included with delivery The Vaillant ecoTEC plus is delivered pre-mounted in a package unit. Check that all the parts have been delivered intact (see fig. 4.2 and table 4.1. DO NOT remove the boiler from the polystyrene base at this stage. -
Page 19: Fitting The Boiler Hanging Bracket
Remove the front casing securing screws then lift the RETAINING case upwards off the two top retaining dowels, see fig DOWEL (2 OFF) 4.4. Note! Take care not to damage the front casing. FRONT CASING SCREW (2 OFF) Fig. 4.4 Removing front casing Installation and Servicing ecoTEC plus... -
Page 20: Gas Connection
The condense drain is suitable for use with standard "Push fit" overflow pipe and couplings DO NOT use adhesive when connecting to the spigot (1) The condense drain pipe (2) should be non corrosive plastic. The drain pipe should have a continuous fall Installation and Servicing ecoTEC plus... -
Page 21: Electrical Connections
Ensure that the power supply is connected such that the current carrying conductors become taut before the earth conductor should the supply cable slip from the cable clamp Fig. 4.6 Water connections Installation and Servicing ecoTEC plus... -
Page 22: Connections To Main Supply
Fig. 4.7 Mains Supply Connection tests and a check for correct polarity. fuse T2E 250 Volts 230V Mains supply Pump connection connection Fig. 4.8 Mains Supply Connection Installation and Servicing ecoTEC plus... -
Page 23: Electrical Board Layout
(analogue only) Mains supply: 230V / 50Hz Room thermostat 230V / 50Hz (remove bridge on connection) Heating pump 2A fuse, slow Igniter Connection: 230V Supply for accessory module Fig. 4.9 Connection wiring Installation and Servicing ecoTEC plus... - Page 24 X 20/17 red (24 Vdc) X 20/18 red (24 Vdc) X 20/9 blue (earth) green/yellow Chassis earth Pump connection fuse T2E 250 Volts 230V black green/yellow green/yellow Electronic control box Fig. 4.10 Mains Supply Connection Installation and Servicing ecoTEC plus...
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Page 25: Controls
Boiler installation sequence 4 4.4.4 Controls Table 4.2 Vaillant controls (used in conjunction with the VR 65 accessory) Controls Item no. Connection VRC 400 (1-circuit controller, weather-controlled) 00 2001 0843 Installation in electronics box or wall-mounted (plug-and play) VRT 360 (room temperature controlled) -
Page 26: Commissioning (Part I)
34 mbar. Caution! Before operating the boiler check the type plate and ensure that the correct gas type Fig. 5.2 Gas service valve Installation and Servicing ecoTEC plus... -
Page 27: Initial Lighting
Adjust the control (1) anti-clockwise to its lowest Note! setting (The indent position just before off). If contacting Vaillant Service Solutions please Turn on external heat demand to boiler. remember to quote the fault code, as this will The fan should start and after a few seconds the help to pinpoint the fault. -
Page 28: Natural Gas To Lpg Conversion
CASE ON CASE OFF CASE ON THROTTLE ADJUSTMENT The ecoTEC plus is able to be field adjusted for use on ecoTEC LPG – propane G31 gas. To enable conversion the use plus 415 9.1+0.2-0.5 9.3+0.2-0.5 10.1+0.5-0.5 10.3+0.5-0.5 5 TURNS of a combustion analyser is necessary. -
Page 29: Functional Checks Commissioning (Part Ii)
(see Section 7.1.1 Fig. 7.2 Display indicator during heating mode 7.1.1 Domestic hot water (If optional VR65, uniSTOR cylinder & Vaillant control are installed) • Switch on the appliance. • Fully open the hot water tap. • Press “i” to activate the status indicator. -
Page 30: Final Flush Of The Heating System (Hot)
7.1.3 Final flush of the heating system (hot) Vaillant warranty • Operate the appliance until the heating system is up Vaillant provide a full parts and labour warranty for to temperature. this appliance. • Check the heating system for leaks. -
Page 31: Inspection And Maintenance 8
Note! Only genuine Vaillant spare parts may be used for The boiler is fitted with a combustion analysis inspections, maintenance and repair work to ensure test point. A suitable combustion analyser... - Page 32 If a flue gas analyser is not available check the ignition and burner flame picture visually. through the viewing window. Check boiler for leaks of any kind, rectify as necessary. Complete gas boiler commissioning checklist (Benchmark). Table 8.1 Inspection and maintenance steps Installation and Servicing ecoTEC plus...
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Page 33: General
3. Check the operational performance of the central heating agrees with the technical specification. INNER CASE CHASSIS PANEL SCREW (2 OFF) ELECTRONICS SCREW (4 OFF) Fig. 8.2 Control panel Installation and Servicing ecoTEC plus... -
Page 34: Spark Electrode
Inspect the burner for any signs of damage. Remove and discard the burner door seal and replace with new, see fig 8.7. Removal of the burner is not necessary during a normal service. Fig. 8.5 Gas service cock Installation and Servicing ecoTEC plus... -
Page 35: Combustion Chamber And Heat Exchanger
CONNECTOR ELECTRODE COMBUSTION CONNECTOR CHAMBER BURNER DOOR SECURING NUTS (5 OFF) IGNITION LEAD GAS VALVE CHASSIS FRONT ELECTRICAL RETAINING SLOTS LEAD GAS PIPE BRACKET GAS VALVE ELECTRICAL PLUG Fig. 8.6 Fan, Gas valve and Burner Installation and Servicing ecoTEC plus... -
Page 36: Inner Casing Panel Seal Check
• Check for ignition and an even flame on the burner. • Check that the heating system is working. • Fill out the Benchmark gas boiler commissioning checklist at the rear of this guide. Installation and Servicing ecoTEC plus... -
Page 37: Combustion Analysis
415 9.1+0.2-0.5 9.3+0.2-0.5 10.1+0.5-0.5 10.3+0.5-0.5 5 TURNS ecoTEC plus 418 9.1+0.2-0.5 9.3+0.2-0.5 10.1+0.0-1.0 10.3+0.0-1.0 5 TURNS ecoTEC plus 428 9.1+0.2-0.5 9.3+0.2-0.5 10.5+0.3-0.8 10.7+0.3-0.8 5 TURNS ecoTEC plus 438 8.8+0.2-0.5 9.0+0.2-0.5 9.8+0.2-0.8 10.0+0.2-0.8 8 TURNS Table 9.1 Installation and Servicing ecoTEC plus... -
Page 38: 10 Troubleshooting
(if fitted) are fully open. 5. Set the central heating temperature to maximum. 6. Set the domestic hot water temperature to maximum (Only if additional Vaillant accessories are fitted). 7. Check that all external controls are on and calling for heat (if no external controls are fitted, boiler terminals 3 and 4 must be linked). -
Page 39: Diagnostic Codes
S.96 Return-sensor check is running, demand (DHW or with out having to enter the password again. heating) is blocked S.98 Flow-/Return-sensor check is running, demand (DHW or heating) is blocked Table 10.1 Status codes (continued) Installation and Servicing ecoTEC plus... - Page 40 °C d.44 Digitised ionisation potential Display range of 0 to 102, > 80 no flame, < 40 even flame d.47 Outside temperature (with weather compensating Vaillant Actual value in °C controller only) d.67 Remaining burner anti cycling time in min d.76...
- Page 41 Adjustment range in min: 20, 21, 22 to 90 (Factory setting: 45) controller (system boilers only) d.77 Storage partial load (storage charging capacity Adjustment range in kW: appliance specific Factory setting: max limit, system boilers only) output Table 10.3 Diagnostics codes of the second diagnostic level Installation and Servicing ecoTEC plus...
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Page 42: Fault Codes
Pump blocked or defective, pump output too low, flow and return NTC between flow and return NTC too large interchanged F.24 Water shortage, temperature rise too Pump blocked, insufficient pump output, air in appliance, water pressure too quick Table 10.4 Error codes Installation and Servicing ecoTEC plus... - Page 43 Condensate pump defective or flume flap feedback triggered heating F.78 Wrong configuration with accessory link box VR65 connected to combination boiler No communication to main board Connection error display main board Table 10.4 Error codes (continued) Installation and Servicing ecoTEC plus...
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Page 44: Test Programs
Remove the gas valve refer to section 11.3. Remove the venturi plate secured with three screws and remove the two screws securing the fan to the gas manifold, see fig 11.1. Check the gasket and replace if necessary. Installation and Servicing ecoTEC plus... -
Page 45: Replacing The Heat Exchanger
Parts replacement 11 Note! The ecoTEC plus 428 and 438 fan is secured through an extension piece with two securing screws, check and replace any seals or gaskets if necessary. 11.5 Replacing the heat exchanger For access refer to section 8.1.4. -
Page 46: Replacing Electronics And Display
12.1 Appliance ADAPTER The Vaillant ecoTEC plus consists largely (92 %) of metal components designed for eventual recycling by incorporation into the smelting process of a steelworks. This gives these parts virtually unlimited FLOAT scope for subsequent re-use. -
Page 47: Appendix 14
Appendix 14 Installation and Servicing ecoTEC plus... -
Page 48: Checklist
Installation and Servicing ecoTEC plus... -
Page 49: Service Interval Record
Installation and Servicing ecoTEC plus... - Page 50 Notes Installation and Servicing ecoTEC plus...
- Page 51 Notes Installation and Servicing ecoTEC plus...
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