415 15 kW The boiler is supplied factory set for use on Natural Gas (G20). The ecoTEC plus boilers can be field adjusted for ecoTEC plus 418 18 kW use on LPG (propane G31), see section 6 for instructions...
Contact your installation/ • Do not smoke. servicing company if the fault persists. • Turn off the gas supply at the gas meter. • Open the windows and doors. • Warn other residents. Instructions for installation and servicing ecoTEC plus 0020020828_07...
The Seasonal Efficiency Domestic Boil- for performance and safety. It is important that no al- ers UK (SEDBUK) is: All ecoTEC plus boilers : Class ‘A’. teration is made to the boiler, without permission, in The value is used in the UK Government’s Standard As- writing, from Vaillant.
BS 6798. If the boiler is to be fitted in a timber framed tems. building, it should be fitted in accordance with Institute of Gas Engineers Publication IG/UP/7 Edition 2 “Gas installa- Instructions for installation and servicing ecoTEC plus 0020020828_07...
When extension pipes are used the flue system must be Fig. 3.4 Art. No. 30 32 09 designed to have a continuous fall to the boiler of at least 3° to allow condensate to run out via the drain. Instructions for installation and servicing ecoTEC plus 0020020828_07...
300 mm is preferred. For IE, recommendations are Note! given in the current edition of IS 813. Vertical flues must not terminate within 600mm of an openable window, air vent or any other ventilation opening. Instructions for installation and servicing ecoTEC plus 0020020828_07...
3.8.1 Unvented hot water cylinder away from the boiler, refer to the current issue of central The ecoTEC plus can be connected to an unvented hot heating system specifications (CHeSS). water cylinder. Vaillant offer a range of cylinders called uniSTOR with capacities from 125 litres to 310 litres. All 3.14...
- if the total volume of filling and top-up water ex- er‘s instructions without exception. ceeds thrice the nominal volume of the heating sys- Vaillant accepts no liability for the compatibility of any tem over the service life of the system additive or its effectiveness in the entire heating sys- tem.
IS 813. It is highly recommend to use the Vaillant Sealed System Kit Article; 020053207 This includes all necessary compo- nents and is included in your Vaillant warranty. See also fig 3.10. 3.18.1 Safety valve A safety valve must be fitted to a sealed system.
4.1.4 Contents included with delivery when handling sheet metal parts. The Vaillant ecoTEC plus is delivered pre-mounted in a package unit. Check that all the parts have been deliv- In GB this is the current I.E.E. WIRING REGULATIONS ered intact (see fig. 4.2 and table 4.1. Do not remove the and BUILDING REGULATIONS.
Before connection check Lean the top of the boiler slightly to the wall and posi- the supply of local gas. tion just above the hanging bracket. Allow the boiler to Instructions for installation and servicing ecoTEC plus 0020020828_07...
70kW net for further information. Before operating the boiler the condensate trap must be filled with water. Fig. 4.6 Water connections Instructions for installation and servicing ecoTEC plus 0020020828_07...
Mains connection terminals L and N remain live “unless isolated at the fused spur or electrical outlet supplying the boiler”. Caution! Do not connect any mains 230V power to the connections 7-8-9 or BUS (+,-). Instructions for installation and servicing ecoTEC plus 0020020828_07...
– boiler terminal Earth sign Blue (neutral) wire – boiler terminal N Brown (live) wire – boiler terminal L Caution! Do not connect any mains 230V power to the connections 7-8-9 or BUS (+,-). Instructions for installation and servicing ecoTEC plus 0020020828_07...
(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 Instructions for installation and servicing ecoTEC plus 0020020828_07...
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X 20/18 red (24 Vdc) X 20/9 blue (earth) green/ yellow Chassis earth pump connection fuse T2E 250 Volts black bus 24 V 230 V green/yellow green/ yellow Electronic control box Fig. 4.10 Mains Supply Connection Instructions for installation and servicing ecoTEC plus 0020020828_07...
4. Terminal 5 is an additional neutral connection for external neutrals such as from the anticipator of a room thermostat. Instructions for installation and servicing ecoTEC plus 0020020828_07...
The Control Centre VR 65 and VR 61 are eBUS system components. In a storage unit cylinder installation, they are responsible for the communication between the ecoTEC plus boiler and external 2- or 3-way-valves. Con- nect the VR 65 or VR61 Control Centre as described in its enclosed manual.
Rectification work must be undertaken before the appliance is commis- Fig. 5.4 Switching on the appliance sioned. Note! Allow the boiler to run on minimum until com- missioning is complete. Instructions for installation and servicing ecoTEC plus 0020020828_07...
• If required, using a screwdriver, adjust the “A” throttle to obtain correct value. (rotating anti-clockwise to The ecoTEC plus is able to be field adjusted for use on increase). Appliance will remain in this mode for 15 mi- LPG – propane G31 gas. To enable conversion the use of nutes or exit by pressing “...
Display indicator during heating mode • Refit the boiler casing (see section 5.10) • Switch on the appliance. • Make sure that there is a heating demand. • Press “i” to activate the status indicator. Instructions for installation and servicing ecoTEC plus 0020020828_07...
- The flue gas analyser is set to the correct fuel setting. Note! Safe combustion can only be verified by meas- uring CO/CO ratio. This must not exceed the value shown in table 9.1. Instructions for installation and servicing ecoTEC plus 0020020828_07...
8.1.3 Checking the CO/CO ratio To ensure the faultless operation, long term availability of all functions and long working life of your Vaillant Note! boiler and to prevent modifications to the approved se- Checking/adjustment of the CO/CO ratio is re-...
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(see Table 9.1). If they are outside of the tolerances of Table 9.1 make an adjustment, see section 9.1. Complete the gas commission checklist (benchmark book). Table 8.1 Inspection and maintenance steps Instructions for installation and servicing ecoTEC plus 0020020828_07...
3. Check the operational performance of the central heating agrees with the technical specification. Instructions for installation and servicing ecoTEC plus 0020020828_07...
• Gently remove the fan, gas valve and burner assembly from the combustion chamber complete with the gas Fig. 8. 5 Gas service cock pipe bracket and seal, see fig 8.6. Instructions for installation and servicing ecoTEC plus 0020020828_07...
8.1.10 Checking the expansion vessel (If fitted). Note! It is not necessary to perform this check every year a check every three years is sufficient. • Release the pressure from the boiler. Instructions for installation and servicing ecoTEC plus 0020020828_07...
• Allow appliance to stabilise. • Measure the CO2 at the combustion analysis point point, see fig 9.1. • Check CO2 value (for case off) as stated in table 9.1 for the boiler installed. Instructions for installation and servicing ecoTEC plus 0020020828_07...
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• Refit the chassis panel and the inner case. (Note the CO2 will increase slightly). "A" throttle – "Pmax" rotate to increase "B" offset adjustment "Pmin" rotate to increase Fig. 9.2 Gas control valve Instructions for installation and servicing ecoTEC plus 0020020828_07...
Flow-/Return-sensor check is running, demand (DHW S.98 or heating) is blocked mation is divided into two diagnostic levels. The second diagnostic level can be reached only after entering a Table 10.1 Status codes password. Instructions for installation and servicing ecoTEC plus 0020020828_07...
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DCF status with connected external probe with DCF77 receiver 0 = no reception, 1 = reception, 2 = synchronised, 3 = valid d.97 Activation of the second diagnostic level Password: 17 Table 10.2 Diagnostics codes of the first diagnostic level Instructions for installation and servicing ecoTEC plus 0020020828_07...
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10947 h. The display returns to the selected diagnostics item by pressing “i” again. heating is 10947 h. The display returns to the selected diagnostics item by pressing “i” again. Instructions for installation and servicing ecoTEC plus 0020020828_07...
Condensate pump defective or flume flap feedback triggered accessories blocks 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 Instructions for installation and servicing ecoTEC plus 0020020828_07...
• In the second diagnostic level, under the diagnostic number “d.96” change the value to 1 (see section 10.1.2). The parameters of all adjustable diagnostic numbers now correspond to the factory settings. Instructions for installation and servicing ecoTEC plus 0020020828_07...
(e.g. switch box etc.)! Note! • Use only new seals and O-rings! The ecoTEC plus 428 and 438 fan is secured • After completing the work, check for gas leaks and through an extension piece with two securing perform a function check (see section 7)! screws, check and replace any seals or gaskets •...
• Flush water through the trap to remove any remaining solids. • Check for any debris in the outlet pipe of the conden- sate drain and clean as necessary. • Reassemble and refit the condense trap. Instructions for installation and servicing ecoTEC plus 0020020828_07...
12.1 Appliance The cost of this annual service is not included in the The Vaillant ecoTEC plus consists largely (92 %) of metal guarantee. components designed for eventual recycling by incorpo- ration into the smelting process of a steelworks. This gives Registering with us these parts virtually unlimited scope for subsequent re-use.
14 Appendix 14 Appendix Instructions for installation and servicing ecoTEC plus 0020020828_07...
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Installation, Installation, Commissioning and Commissioning and Service Record Service Record Instructions for installation and servicing ecoTEC plus 0020020828_07...
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Please affix the label from the rear cover of the control box over this area.
0020008345-06 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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