Vaillant EcoTEC Plus 824 Boiler Instruction Manual
Vaillant EcoTEC Plus 824 Boiler
Vaillant EcoTEC Plus 824 Boiler
Vaillant EcoTEC Plus 824 Instructions
Here we offer the Vaillant EcoTEC Plus 824 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 824 Boiler, we suggest checking the Frequently Asked Questions (FAQs) section of this manual.
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Vaillant EcoTEC Plus 824 Boiler Specifications
| Specification | Value |
|---|---|
| CH Heat Output (80°C/60°C return) | 6.7 – 19.0 kW |
| CH Heat Output (60°C/40°C return) | 6.9 – 19.6 kW |
| CH Heat Output (50°C/30°C return) | 7.1 – 20.2 kW |
| CH Heat Output (40°C/30°C return) | 7.2 – 20.6 kW |
| Maximum DHW Output | 23.0 kW |
| Maximum Output for Heating | 19 kW |
| Minimum Output | 6.7 kW |
| Category | II2H3P |
| SEDBUK Band | A |
| SAP Seasonal Efficiency | 91.1 % |
| Inlet Gas Working Pressure (G20, Natural Gas) | 20 mbar |
| Inlet Gas Working Pressure (G31, Propane) | 37 mbar |
| Connected Load (G20) | 2.5 m³/h |
| Connected Load (G31) | 1.82 kg/h |
| Exhaust Mass Rate (Min Thermal Load) | 3.2 g/s |
| Exhaust Mass Rate (Max Thermal Load) | 10.7 g/s |
| Exhaust Temperature (Min Thermal Load) | 40 °C |
| Exhaust Temperature (Max Thermal Load) | 74 °C |
| NOx Class | 5 |
| Protection Class | IP X4D |
| Max. Flow Temperature | 85 °C |
| Adjustable Flow Temperature Range | 30 – 85 °C (Default: max. 75 °C) |
| Maximum CH System Pressure | 3.0 bar |
| Circulation Water Volume (ΔT=20 K) | 817 l/h |
| Approx. Condensation Volume (50°C/30°C) | 1.8 l/h |
| Pump Delivery Height | 250 mbar |
| Minimum DHW Flow Rate | 1.5 l/min |
| DHW Flow Rate (ΔT=35 K Rise) | 9.4 l/min |
| DHW Flow Rate (Factory Set ΔT=42 K) | 7.9 l/min |
| Permitted DHW Overpressure | 10 bar |
| Mains Water Pressure Required (Max Flow) | 0.5 bar |
| Mains Water Pressure Required (Min Flow) | 0.15 bar |
| Hot Water Discharge Temperature Range | 35 – 65 °C |
| Exhaust Flue | 60/100 mm |
| Flue Categories | C13, C33, C43, C53, C83, B23, B33 |
| 10L Expansion Vessel Pre-charge Pressure | 0.75 bar |
| Connections Heating Flow/Return | 22 mm |
| Gas Inlet Connection | 15 mm |
| Pressure Relief Discharge Pipework (Min.) | 15 mm |
| Condensate Drain (Min. Internal Drain) | 19 mm |
| Dimensions (H x W x D) | 720 x 440 x 335 mm |
| Weight (Boiler Only) | 35 kg |
| Primary Water Content | 1.9 l |
| Electrical Supply Voltage | 230/50 V~/Hz |
| Internal Fuse (Slow) Main Voltage | 2 A |
| Power Input | 110 W |
| Gas Council Number | 47-044-31 |
Vaillant EcoTEC Plus 824 Boiler Details
The Vaillant EcoTEC Plus 824 is a compact, wall-mounted condensing combination boiler engineered to provide both central heating and domestic hot water directly and efficiently. It operates automatically, intelligently adjusting its performance to meet the demands for heating and hot water in the most economical way possible, minimizing energy waste.
This model features an advanced multifunctional digital display system. This intuitive interface provides the user with crucial operational information, including the current heating flow temperature, system pressure, and various status or error codes, ensuring transparency and ease of monitoring. An "i" (information) button allows users to quickly access these detailed status displays.
A notable convenience feature is the Warmstart function, which ensures immediate hot water at the desired temperature. It achieves this by maintaining the hot water heat exchanger at a pre-selected temperature, ready for instantaneous delivery. Users can easily adjust the domestic hot water temperature within a range of 35°C to 65°C using a dedicated control knob.
For central heating, the boiler offers flexible temperature control for radiators, with settings ranging from a gentle heat suitable for spring/autumn to higher temperatures for colder winter conditions. While the default maximum flow temperature is 75°C, a qualified engineer can adjust it higher if required by the system. The boiler also supports a convenient summer operation mode, allowing users to switch off heating while maintaining hot water supply.
The EcoTEC Plus 824 is equipped with vital protective features, including an integral frost protection function that activates if the boiler's internal water temperature drops below 5°C. This helps prevent damage to the boiler itself, provided it remains powered and switched on. Additionally, an anti-cycling economiser control prevents inefficient short bursts of operation in heating mode.
Designed for longevity and reliability, the boiler includes an Automatic Pump Spin control (APS). This feature periodically runs the internal circulating pump and operates the diverter valve (if fitted) every 23 hours. This intelligent mechanism helps prevent component seizure during periods of inactivity, contributing to the boiler's long-term operational stability. Installation is flexible, accommodating various flue system options for diverse property layouts.
Further enhancing its appeal, the EcoTEC Plus 824 comes with a two-year guarantee, underscoring Vaillant's commitment to quality. However, it is important to note that the second year of this guarantee is contingent upon the boiler receiving an annual service from a competent, qualified installer. This emphasizes the importance of regular maintenance for optimal performance and safety.
Frequently Asked Questions (FAQs)
Can't find the answer you need? Here are some frequently asked questions about the Vaillant EcoTEC Plus 824 Boiler, and we answer them below.
