Vaillant ecoTEC Plus 418 Boiler Instruction Manual

Manual Vaillant ecoTEC Plus 418 Boiler Instruction Manual

Vaillant ecoTEC Plus 418 Boiler Instruction Manual

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Vaillant ecoTEC Plus 418 Boiler

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Vaillant ecoTEC Plus 418 Boiler Instructions

Here we offer the Vaillant ecoTEC Plus 418 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 418 Boiler, we suggest checking the Frequently Asked Questions (FAQs) section of this manual.


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Vaillant ecoTEC Plus 418 Boiler Specifications

Description Unit ecoTEC plus 418
Maximum CH heat input (net) kW 18.9
CH heat output (80/60 °C) kW 5.0 - 18.6
CH heat output (50/30 °C) kW 5.3 - 20.0
SEDBUK Band A
SAP Seasonal Efficiency % 90.4
NOx Class 5
"lP rating" IPX4D
Inlet gas working pressure required (natural gas) mbar 20
Gas supply (G20) Gross CV (s.t.) MJ/m3 37.8
Maximum gas rate M3/h 2.0
Minimum gas rate M3/h 0.53
Burner % CO2 (Case on) % 9.3 + 0.2 - 0.5
Gas connection (compression) mm 15
Water connections (compression) mm 22
Condensate drain (internal diameter) mm 19 min.
Fuse ratings fan supply PCB A 3.15 AT
Main PCB A 125 mAT
Minimum flow rate of water through the boiler L/min. 12.9
Weight kg 3.1
Electrical supply V~/HZ 230/~50
External fuse A 3
Power input W 60
Case height mm 600
Case width mm 375
Case depth mm 334

Vaillant ecoTEC Plus 418 Boiler Details

The Vaillant ecoTEC Plus 418 Boiler is a highly efficient, wall-hung open vent condensing boiler designed for both fully pumped open-vented and sealed water central heating systems. Its advanced condensing technology ensures a Class 'A' SEDBUK rating and a SAP Seasonal Efficiency of 90.4%, leading to optimal energy usage and reduced running costs. This model is engineered for reliability and performance in modern domestic heating environments.

Installation flexibility is a key attribute of the ecoTEC Plus 418. It can be easily mounted on any internal wall and is compatible with various Vaillant flue systems, including standard horizontal and vertical Room Sealed Fan (RSF) options (100mm or 125mm diameters). The system also accommodates flue extensions, bends, and elbows, allowing for versatile placement within a property and simplifying complex installations.

For user convenience, the boiler features adjustable central heating water temperature settings. Domestic hot water temperature can also be adjusted directly on the boiler when it is integrated with a Vaillant uniSTOR unvented cylinder and compatible controls. Once configured, the boiler operates automatically, minimizing user interaction. An integrated diagnostic system provides clear status codes, aiding in both commissioning and any necessary fault-finding.

Safety is paramount with the ecoTEC Plus 418. It includes a built-in frost protection program that automatically activates the burner and system pump if the boiler's internal temperature drops to 3°C, provided the electrical and gas supplies remain active. The boiler requires proper electrical earthing, and it’s essential that installation and servicing are carried out by a competent, certified professional in accordance with all relevant safety regulations.

Maintaining the ecoTEC Plus 418 is straightforward. Annual servicing by a competent person is recommended to ensure its continued efficient and safe operation. For system longevity and protection, the use of suitable cleansers and inhibitors, especially for its stainless steel heat exchangers, is advised. Only genuine Vaillant spare parts should be used for any repairs or replacements to maintain optimal functionality and warranty validity.

As a condensing boiler, the ecoTEC Plus 418 naturally produces a plume of water vapour from its flue terminal, which is a normal indicator of its high-efficiency operation. It requires a plastic condensate drain pipe, ideally discharged into the internal household drainage system, and incorporates an internal 75mm trap for efficient condensate management. Care must be taken to ensure this drain is not modified or blocked.

The boiler features a user-friendly interface with clear fault codes displayed for easy identification of issues. A simple reset button allows for manual fault clearance if the burner fails to ignite. Vaillant backs this product with a full two-year parts and labour warranty, contingent upon adherence to manufacturer instructions and installation by a suitably qualified individual.

Frequently Asked Questions (FAQs)

Can't find the answer you need? Here are some frequently asked questions about the Vaillant ecoTEC Plus 418 Boiler, and we answer them below.


What type of boiler is the Vaillant ecoTEC Plus 418?
The Vaillant ecoTEC Plus 418 is a wall-hung open vent condensing boiler, designed for central heating from fully pumped open-vented or sealed water systems.

What is the energy efficiency rating of this boiler?
The ecoTEC Plus 418 is a Class 'A' SEDBUK rated boiler with a SAP Seasonal Efficiency of 90.4%, signifying high energy efficiency.

Can the ecoTEC Plus 418 be converted to use LPG?
Yes, all ecoTEC Plus boilers are supplied factory set for Natural Gas (G20) but can be field-adjusted for use on LPG (propane G31) by a competent person.

Does the boiler have frost protection?
Yes, it includes a built-in frost protection program that activates the burner and system pump when the boiler's internal temperature falls to 3°C, provided the electricity and gas supplies are on.

What are the minimum clearance requirements for installation?
Minimum clearances from permanent surfaces are 150mm at the top, 5mm at the sides, 200mm at the bottom, and 5mm at the rear. Additional space may be needed for servicing and flue installation.

How do I reset the boiler if it displays a fault code?
If the burner fails to ignite after five attempts, a fault code (e.g., F.28 or F.29) will display. To reset, press and hold the reset button on the control panel for one second.

Is annual servicing required for this boiler?
Yes, it is strongly recommended that the boiler is checked and serviced by a competent person at regular intervals, generally once a year, to ensure its continued efficient and safe operation.

What kind of flue systems are compatible with the ecoTEC Plus 418?
It is designed for use with genuine Vaillant flue systems, including 60/100 standard horizontal/telescopic air/flue ducts and 60/100 or 80/125 vertical air/flue ducts and terminals.

What is the warranty period for the Vaillant ecoTEC Plus 418?
Vaillant provides a full two-year parts and labour warranty for the appliance, subject to terms and conditions, including proper installation and commissioning by a competent person.

What should I do if I smell gas?
If you smell gas, immediately turn off the gas supply at the meter, open windows and doors, warn other residents, do not use electrical switches or naked flames, and evacuate the premises. Then consult your gas supplier or a competent person.

Can the domestic hot water temperature be adjusted on the boiler?
The domestic hot water temperature can only be adjusted on the boiler if it is installed with a Vaillant uniSTOR unvented cylinder and relevant controls.

Is it normal to see a plume of water vapor from the flue terminal?
Yes, it is completely normal for all condensing boilers, including the ecoTEC Plus 418, to produce a plume of water vapor from the flue terminal. This indicates the boiler is operating efficiently.

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