Vaillant EcoTEC Plus 630 Boiler Instruction Manual

Manual Vaillant EcoTEC Plus 630 Boiler Instruction Manual

Vaillant EcoTEC Plus 630 Boiler Instruction Manual

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Vaillant EcoTEC Plus 630 Boiler

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Vaillant EcoTEC Plus 630 Boiler

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Vaillant EcoTEC Plus 630 Instructions

Here we offer the Vaillant EcoTEC Plus 630 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 630 Boiler, we suggest checking the Frequently Asked Questions (FAQs) section of this manual.


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Vaillant EcoTEC Plus 630 Boiler Specifications

Feature Specification
General Data
Designated Country GB, IE
Permitted Gas Boiler Category II2H3P
CE PIN 0063CU3910
UKCA PIN 0063CU3910
Gas Connection, Boiler Side 15 mm
Flow/Return Heating Connections, Boiler Side G 3/4 ″
Flow/Return Cylinder Connections, Boiler Side –
Domestic Hot/Cold Water Connections, Boiler Side –
Expansion Relief Valve Connection 15 mm
Condensate Discharge Hose Connection 19 mm
Air/Flue Pipe Connection 60/100 mm
Capacity of the Heating Expansion Vessel 10 l
Pre-Charge Pressure of the 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
SAP 2009/2012 Annual Efficiency (%) –
Weight with Packaging (incl. accessories) 39 kg
Empty Weight of the Product 35 kg
Weight Ready for Operation (filled) 41 kg
G20 Natural Gas Output/Heat Input
Gas Connection Pressure, G20 Natural Gas 2.0 kPa (20.0 mbar)
NOx Emission, Weighted, G20 (EN 15502-2-1) 27.80 mg/kWh
30% Efficiency, G20 109.1 %
Max. Gas Volume Flow (DHW generation), G20 3.76 m³/h
Nominal Heat Output Range at 40/30 °C 4.3 to 32.9 kW
Nominal Heat Output Range at 50/30 °C 4.2 to 32.2 kW
Nominal Heat Output Range at 60/40 °C 4.0 to 31.1 kW
Nominal Heat Output Range at 80/60 °C 3.7 to 29.9 kW
Nominal Heat Input Range for Heating (Hi) 4.2 to 30.6 kW
Nominal Heat Input Range for Heating (Hs) 4.7 to 34.0 kW
Max. Heat Output for Domestic Hot Water 39.4 kW
Nominal Heat Input for Domestic Hot Water (Hi) 35.5 kW
Nominal Heat Input for Domestic Hot Water (Hs) 39.4 kW
Heating Adjustment Range 4.2 to 30.6 kW
G31 Liquefied Petroleum Gas Output/Heat Input
Gas Connection Pressure, G31 LPG 3.7 kPa (37.0 mbar)
NOx Emission, Weighted, G31 (EN 15502-2-1) 25.33 mg/kWh
Max. Gas Mass Flow (DHW generation), G31 2.8 kg/h
Nominal Heat Output Range at 40/30 °C 8.6 to 31.8 kW
Nominal Heat Output Range at 50/30 °C 8.2 to 31.3 kW
Nominal Heat Output Range at 60/40 °C 8.0 to 30.3 kW
Nominal Heat Output Range at 80/60 °C 8.0 to 29.5 kW
Nominal Heat Input Range for Heating (Hi) 8.2 to 30.6 kW
Nominal Heat Input Range for Heating (Hs) 8.9 to 33.4 kW
Max. Heat Output for Domestic Hot Water 38.7 kW
Nominal Heat Input for Domestic Hot Water (Hi) 35.5 kW
Nominal Heat Input for Domestic Hot Water (Hs) 38.7 kW
Heating Adjustment Range 8.2 to 30.6 kW
Heating System Data
Max. Flow Temperature 85 ℃
Flow Temperature Adjustment Range (factory setting: 75 °C) 30 to 80 ℃
Permissible Operating Pressure, Heating 0.25 MPa (2.50 bar)
Nominal Circulation Water Volume (ΔT = 20 K, 80/60 °C) 1,318 l/h
Approx. Condensate Rate (pH 3.5 to 4.0, 50/30 °C heating mode) 3.1 l/h
Remaining Pump Head at Nominal Circulation Water Volume 0.025 MPa (0.250 bar)
Domestic Hot Water Data (Requires External Cylinder)
Start-up Flow Rate N/A
Specific Flow Rate D (ΔT = 30 K, EN 13203-1) N/A
Flow Rate (ΔT = 35 K) N/A
Permissible Operating Pressure (PMW) N/A
Required Connection Pressure N/A
DHW Temperature Adjustment Range N/A
Flow Rate Limiter N/A
Classification (EN 13203-1) N/A
Electrical Data
Rated Voltage 230 V~
Mains Frequency 50 Hz
Permissible Connected Voltage 190 to 253 V~
Built-in Fuse (slow-blow) 4 A
Max. Power Consumption in Heating Mode 95.4 W
Max. Power Consumption in Domestic Hot Water Mode 108 W
Electrical Standby Energy Consumption < 2 W
IP Rating IPX5D

Vaillant EcoTEC Plus 630 Boiler Details

The Vaillant EcoTEC Plus 630 Boiler is a highly efficient heat generator, part of Vaillant's renowned ecoTEC range. Designed for sealed central heating installations, this system boiler effectively provides warmth for various property sizes. It's built for compatibility with an external hot water cylinder, ensuring a reliable supply of domestic hot water throughout the home. Specifically intended for the Great Britain and Ireland markets, the 630 model adheres to all local gas type regulations, offering flexible fuel options including natural gas (G20) and liquefied petroleum gas (G31). To ensure optimal performance and safety, users must diligently follow the comprehensive operating instructions and adhere to all recommended inspection and maintenance schedules.

The boiler features a user-friendly interface with an intuitive display and control elements. Users can easily activate/deactivate standby mode, set desired flow and domestic hot water temperatures (for cylinder charging), and access status codes. A handy button lock prevents accidental changes, enhancing safety and peace of mind. The display uses clear symbols to indicate burner modulation, system pressure, heating/DHW modes, and maintenance alerts, providing at-a-glance information about the boiler's operational status.

When integrated with a Vaillant sensoROOM pure (VRT 50/2) room temperature control, the EcoTEC Plus 630 offers enhanced scheduling capabilities. Users can configure daily heating schedules through a weekly planner or time programme assistant, optimizing energy use and comfort. This intelligent control system allows precise management of heating times and temperatures, adapting to household routines. Even with a room control, critical safety features like frost protection remain active, safeguarding the system from freezing temperatures.

Safety is paramount, with the EcoTEC Plus 630 incorporating multiple protective measures. It complies with both CE and UKCA markings, ensuring adherence to European and UK regulatory standards. The boiler’s design includes safeguards against gas leaks, flue gas escape, and electrical hazards. Crucially, the system features an automatic frost protection mechanism and will shut down if the condensate drain becomes blocked, preventing damage and ensuring continuous operation. Regular annual inspections by a competent person are vital for maintaining long-term safety and performance.

The EcoTEC Plus 630 is engineered for easy care and maintenance, minimizing effort for homeowners while ensuring longevity. The user manual provides clear instructions for routine tasks like cleaning the casing and monitoring system pressure. Proactive maintenance alerts on the display notify users when service is due, facilitating timely professional checks. Internally, the boiler boasts advanced intelligent combustion regulation through Sitherm Pro™ technology, which automatically optimizes the gas-air ratio for peak performance. This sophisticated design, coupled with continuous energy data recording for heating and DHW, allows for transparent monitoring of the boiler's impressive efficiency and contributes to lower running costs.

Frequently Asked Questions (FAQs)

Can't find the answer you need? Here are some frequently asked questions about the Vaillant EcoTEC Plus 630 Boiler, and we answer them below.


How do I temporarily switch off the boiler?
To temporarily switch off the boiler, briefly press the standby button; the display will go out, but the frost protection will remain active. If there is no risk of frost, you can switch off the product at the switched fused spur box and close the gas stopcock, which deactivates the frost protection function.

What should I do if I smell gas?
Immediately avoid the area, open windows and doors for ventilation, and extinguish all naked flames. Do not use any electrical switches, phones, or communication systems. If it's safe to do so, close the emergency control valve or main gas isolator. Warn others, leave the building, and call the police, fire brigade, and gas supply company from a safe location outside.

How do I check the heating system's pressure?
The current system pressure is displayed on the basic screen, either as a numerical value on the bottom right or a five-level bar indicator on the upper edge. For detailed information, you can navigate to MENU → INFORMATION → Water pressure. The recommended filling pressure is at least 1 bar (0.1 MPa), and should be topped up if it drops below 0.8 bar (0.08 MPa).

What does a flashing wrench symbol indicate?
A flashing wrench symbol indicates that the product requires maintenance work. The boiler is not in fault mode and continues to operate. You should contact a competent person for service. If the water pressure symbol is also flashing, this indicates low pressure, and you should add heating water to the system.

How do I reset the boiler after a fault code appears?
If a fault code (F.XXX) appears, you should first consult the troubleshooting section of your manual for possible solutions. If the fault persists or cannot be resolved by the suggested measures, press and hold the reset button on the boiler for more than three seconds to restart it. If the issue remains after multiple reset attempts, contact a competent person for assistance.

Can I use any type of water for the heating system?
No, you must only fill the heating installation with suitable heating water. Using water that is extremely calciferous, corrosive, or contaminated by chemicals can cause significant material damage to the product, including seals and diaphragms, leading to blockages and operational noise. It is crucial to use treated or appropriate water to protect the system.

How often should the boiler be serviced?
An annual inspection and maintenance by a competent person is essential. This is a prerequisite for ensuring that the product remains permanently ready, safe for operation, reliable, and achieves a long working life. Furthermore, regular servicing is often a requirement to maintain the product's guarantee.

What is 'Comfort mode' and how does it relate to the EcoTEC Plus 630?
For the EcoTEC Plus 630, when connected to an external domestic hot water cylinder, Comfort mode ensures hot water is readily available at your desired temperature without a significant wait time. This feature keeps the domestic hot water generation prepared, providing immediate comfort when hot water is drawn.

How do I activate/deactivate the button lock?
To activate the button lock, navigate through the menu to MENU → SETTINGS → Button lock and confirm your selection. Once activated, the control panel is locked. To deactivate the button lock, press and hold the button for four seconds. This feature helps prevent unintended changes to your boiler settings.

What is Sitherm Pro™ technology?
Sitherm Pro™ technology refers to the intelligent combustion regulation system used by Vaillant, based on adaptive Siemens combustion optimization. This system automatically adjusts and optimizes the gas-air ratio, ensuring efficient combustion and making manual adjustments to the O₂ or CO₂ values within the same gas family unnecessary.

Where can I find the serial number of my boiler?
The serial number for your Vaillant EcoTEC Plus 630 boiler is located in two places: on the underside of the front panel and on the main data plate. The 3rd to 6th digits of the serial number indicate the production date (year/week), and the 7th to 16th digits provide the product's article number.

What should I do if I smell flue gas?
If you detect the smell of flue gas, immediately open all accessible doors and windows fully to provide adequate ventilation. Then, switch off the product. It is crucial to contact a competent person or qualified engineer without delay for a thorough inspection and any necessary repairs to address the issue safely.

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