Vaillant EcoTEC Plus 637 Boiler Instruction Manual
Vaillant EcoTEC Plus 637 Boiler
Vaillant EcoTEC Plus 637 Boiler
Vaillant EcoTEC Plus 637 Instructions
Here we offer the Vaillant EcoTEC Plus 637 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 637 Boiler, we suggest checking the Frequently Asked Questions (FAQs) section of this manual.
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Vaillant EcoTEC Plus 637 Boiler Specifications
| Feature | Specification |
|---|---|
| Model | EcoTEC Plus 637 System Boiler |
| Gas Council Number | 41-044-49 |
| SEDBUK Band | A |
| SAP Seasonal Efficiency | 91.2 % |
| Central Heating Output (80°C/60°C) | 12.0 – 37.0 kW |
| Central Heating Output (60°C/40°C) | 12.3 – 38.2 kW |
| Central Heating Output (50°C/30°C) | 12.7 – 39.3 kW |
| Central Heating Output (40°C/30°C) | 12.9 – 40.1 kW |
| Inlet Gas Working Pressure (Natural Gas G20) | 20 mbar |
| Inlet Gas Working Pressure (Propane G31) | 37 mbar |
| Connected Load (Natural Gas G20) | 4.0 m³/h |
| Connected Load (Propane G31) | 2.94 kg/h |
| NOx Class | 5 |
| Protection Class | IP X4D |
| Max. Flow Temperature | 85 °C |
| Adjustable Flow Temperature | 30 – 85 °C (Default: 75 °C) |
| Maximum CH System Pressure | 3.0 bar |
| Circulating Water Volume (ΔT=20 K) | 1591 l/h |
| Approx. Condensation Volume (50°C/30°C) | 3.8 l/h |
| Pump Delivery Height | 150 mbar |
| Adjustable Storage Target Value | 15 – 70 °C (Left Stop), 40 – 70 °C (Spare Adjusting Range) |
| Exhaust Flue | 60/100 mm |
| Flue Categories | C13, C33, C43, C53, C83, B23, B33 |
| Expansion Vessel Pre-charge Pressure | 0.75 bar (10 litre vessel) |
| Connections Heating Flow/Return | 22 mm |
| Gas Inlet Connection | 22 mm |
| Pressure Relief Discharge Pipework (min.) | 15 mm |
| Condensate Drain (min. internal) | 19 mm |
| Dimensions (H x W x D) | 720 x 440 x 403 mm |
| Weight (Boiler only) | 40 kg |
| Primary Water Content | 2.5 l |
| Electrical Supply Voltage | 230V/50Hz |
| Internal Fuse (slow) | 2 A |
| Power Input | 140 W |
Vaillant EcoTEC Plus 637 Boiler Details
The Vaillant EcoTEC Plus 637 Boiler is a sophisticated, wall-mounted condensing system boiler, meticulously engineered for efficient central heating and indirect domestic hot water supply. Unlike combination boilers, this model requires a separate indirect hot water cylinder to provide hot water, integrating seamlessly into existing or new heating systems. Its compact design allows for versatile installation locations within a property.
At its core, the boiler features an advanced digital information and analysis system. This intuitive display provides real-time information on the appliance's operating status, including current heating flow temperature, system pressure, and diagnostic or fault codes. This transparency aids both users and service engineers in understanding the boiler's performance and identifying potential issues swiftly.
User operation is simplified through a clear control interface, including a main ON/OFF switch, controls for maximum radiator temperature, a pressure gauge, and navigation buttons ("+", "-", "i", "Reset"). These controls enable homeowners to manage their heating effectively, while maintaining the boiler's optimal and economical operation for their central heating demands.
Safety is paramount, with the EcoTEC Plus 637 incorporating several protective measures. A crucial frost protection function safeguards the boiler itself by activating heating if the internal water temperature drops below 5°C. However, it is important to note that this function does not guarantee protection for the entire heating system, underscoring the need for comprehensive property insulation or additional external frost thermostats.
Further enhancing its reliability, the boiler features an "anti-cycling economiser" control, preventing wasteful short bursts of operation in central heating mode. An automatic pump spin control (APS) is also integrated, periodically activating the circulating pump to prevent seizure during extended periods of inactivity, thus contributing to the boiler's longevity.
Constructed for sealed central heating systems, the EcoTEC Plus 637 comes fully equipped with a built-in circulating pump and an expansion vessel, simplifying installation. It is compatible with Vaillant's genuine flue systems (60/100mm standard, 125mm optional) and suitable for both minibore and microbore pipework configurations, ensuring adaptability to diverse installations.
Vaillant's commitment to quality is reflected in the boiler's two-year guarantee. To maintain the validity of the second year, an annual service by a competent, Gas Safe registered installer is required. This emphasis on professional maintenance ensures sustained efficiency, safety, and adherence to industry standards like the Benchmark initiative, which Vaillant actively supports.
The design of the EcoTEC Plus 637 also facilitates maintenance, featuring a removable front case and a lowerable electronics box for easy access to internal components. This thoughtful engineering approach, combined with the use of recyclable materials, underscores Vaillant’s dedication to both product longevity and environmental responsibility, making it a reliable and sustainable heating solution.
Frequently Asked Questions (FAQs)
Can't find the answer you need? Here are some frequently asked questions about the Vaillant EcoTEC Plus 637 Boiler, and we answer them below.
