Vaillant EcoTEC Plus 840 Boiler Instruction Manual
Vaillant EcoTEC Plus 840 Boiler
Vaillant EcoTEC Plus 840 Boiler
Vaillant EcoTEC Plus 840 Instructions
Here we offer the Vaillant EcoTEC Plus 840 Boiler manual completely free and in English. We have cataloged this manual in the Boilers section on Manualverse, and it has been rated by 1 users with an average rating of 5. If you have any specific questions about Vaillant EcoTEC Plus 840 Boiler, we suggest checking the Frequently Asked Questions (FAQs) section of this manual.
Product Images
Vaillant EcoTEC Plus 840 Boiler Specifications
| Feature | Specification |
|---|---|
| Product Article Number | 0010036018 |
| Gas Council Number | 47-044-95 |
| Designated Country | GB, IE |
| Permitted Gas Boiler Category | II2H3P (Natural Gas, Propane) |
| CE PIN | 0063CU3910 |
| UKCA PIN | 0063CU3910 |
| Dimensions (Height x Width x Depth) | 720 mm x 440 mm x 386 mm |
| Empty Weight | 40 kg |
| Weight Ready for Operation (filled) | 48 kg |
| Gas Connection (boiler side) | 15 mm |
| Heating Flow/Return Connections (boiler side) | G 3/4 ″ |
| Domestic Hot/Cold Water Connections (boiler side) | G 3/4 ″ |
| Expansion Relief Valve Connection | 15 mm |
| Condensate Discharge Hose Connection | 19 mm |
| Air/Flue Pipe Connection | 60/100 mm |
| Capacity of Heating Expansion Vessel | 10 l |
| Pre-charge Pressure of Heating Expansion Vessel | 70 kPa (700 mbar) |
| Min. Flue Gas Temperature | 35 ℃ |
| Max. Flue Gas Temperature | 85 ℃ |
| Approved Gas Boiler Types | C13, C33, C43, C53 |
| NOx Class | 6 |
| Gas Connection Pressure (G20 Natural Gas) | 2.0 kPa (20.0 mbar) |
| NOx Emission (G20) | 26.30 mg/kWh |
| 30% Efficiency (G20) | 109.2 % |
| Nominal Heat Output Range (40/30 °C) | 5.2 to 32.9 kW |
| Nominal Heat Output Range (80/60 °C) | 4.5 to 29.8 kW |
| Max. Heat Output for Domestic Hot Water | 45.3 kW |
| Max. Flow Temperature | 85 ℃ |
| Flow Temperature Adjustment Range | 30 to 80 ℃ (Factory: 75 °C) |
| Permissible Operating Pressure (Heating) | 0.25 MPa (2.50 bar) |
| Approx. Condensate Rate (50/30 °C heating mode) | 3.1 l/h |
| Start-up Flow Rate (DHW) | 2.0 l/min |
| Specific Flow Rate D (ΔT = 30 K) | 19.0 l/min |
| Permissible Operating Pressure (DHW) | 0.95 MPa (9.50 bar) |
| Domestic Hot Water Temperature Adjustment Range | 35 to 65 ℃ |
| Flow Rate Limiter (DHW) | 14.0 l/min |
| Electrical Rated Voltage | 230 V~ |
| Mains Frequency | 50 Hz |
| Built-in Fuse (slow-blow) | 4 A |
| Max. Power Consumption (Heating Mode) | 98.5 W |
| Max. Power Consumption (DHW Mode) | 134 W |
| Electrical Standby Energy Consumption | < 2 W |
| IP Rating | IPX5D |
Vaillant EcoTEC Plus 840 Boiler Details
The Vaillant EcoTEC Plus 840 Boiler features an intuitive operating concept, incorporating color-lit control elements that dim after inactivity to save energy. Its clear display shows various symbols, indicating burner modulation rate, system pressure, heating and DHW status, comfort mode activation, and maintenance requirements. Important product identification, such as the serial number, can be found on both the front panel underside and the data plate, which also details production and article numbers for easy reference.
This boiler proudly carries CE and UKCA markings, confirming its compliance with relevant European and UK directives. Vaillant's membership in the Hot Water Association and adherence to the Benchmark Scheme underscores the product's commitment to quality, safe installation, and proper servicing standards. Users are encouraged to ensure the installer completes the Benchmark Checklist, which is crucial for upholding the comprehensive two-year guarantee and any potential extended warranties.
Beyond its core functionality, the EcoTEC Plus 840 offers diverse operational modes. Users can effortlessly set desired flow temperatures for heating and domestic hot water. The boiler supports a "summer mode" for heating deactivation and a "comfort mode" for rapid hot water availability. When connected with a sensoROOM pure (VRT 50/2) control, users gain advanced management over heating time periods and overall heating system control directly from the room thermostat.
Maintaining the EcoTEC Plus 840 is straightforward; the casing requires only a damp cloth and solvent-free soap. Annual inspections by a qualified competent person are vital for long-term reliability. The boiler provides clear maintenance messages, including alerts for low heating system pressure or when condensate discharge pipe checks are due. In the event of faults (F.XXX) or limp home mode (N.XXX) codes, the manual provides troubleshooting guidance, advising when professional assistance is necessary.
At the heart of its efficiency lies Sitherm Pro™ technology, an intelligent combustion regulation system that adaptively optimizes performance. This advanced feature eliminates the need for manual gas-air ratio adjustments within the same gas family. While the boiler provides approximate energy consumption data based on algorithms, it's explicitly noted that these figures are for informational purposes and not suitable for billing comparisons, reflecting varying installation conditions and user behavior.
Designed for internal installation, the boiler incorporates robust safety devices. These include protection against electrical supply failure, automatic shutdown mechanisms for overheating, and an integrated frost protection system that activates the pump and burner at low temperatures. A safety feature also stops the boiler if the condensate drain becomes blocked, often due to freezing. Proper water treatment, including monitoring hardness and pH, is essential to prevent material damage and ensure optimal performance.
Frequently Asked Questions (FAQs)
Can't find the answer you need? Here are some frequently asked questions about the Vaillant EcoTEC Plus 840 Boiler, and we answer them below.
