Vaillant Ecofit Pure 412 Boiler Instruction Manual

Name: Vaillant Ecofit Pure 412 Boiler Instruction Manual
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Vaillant Ecofit Pure 412 Boiler Instruction Manual

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Vaillant Ecofit Pure 412 Boiler

Vaillant Ecofit Pure 412 Boiler Instructions

Here we offer the Vaillant Ecofit Pure 412 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 Ecofit Pure 412 Boiler, we suggest checking the Frequently Asked Questions (FAQs) section of this manual.

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Vaillant Ecofit Pure 412 Boiler Specifications

Specification	Value
Product Article Number	0010020400
Gas Council Number	41-694-08
Max. Flow Temperature Adjustment Range	10 … 80 ℃
Maximum Permissible Pressure	0.3 MPa (3.0 bar)
Nominal Water Flow (ΔT = 20 K)	530 l/h
Nominal Water Flow (ΔT = 30 K)	353 l/h
Approximate Condensate Volume (pH 3.5-4.0) at 50/30 °C	1.23 l/h
Maximum Heat Output	12 kW
Effective Output Range (P) at 40/30 °C	4.8 … 13.0 kW
Effective Output Range (P) at 50/30 °C	4.7 … 12.8 kW
Effective Output Range (P) at 80/60 °C	4.5 … 12.3 kW
Domestic Hot Water Heat Output (P)	4.4 … 15.0 kW
Maximum Heat Input – Heating (Q max.)	12.3 kW
Minimum Heat Input – Heating (Q min.)	4.5 kW
Maximum Heat Input – Hot Water (Q max.)	15.3 kW
Minimum Heat Input – Hot Water (Q min.)	4.5 kW
Gas Category	I2H
Diameter of the Gas Pipe	1/2 inch
Diameter of the Heating Connections	3/4 inch
Expansion Relief Valve Connector (min.)	15 mm
Condensate Drain Pipework (min.)	21.5 mm
G20 Gas Supply Pressure	2.0 kPa (20.0 mbar)
Gas Flow at P max. – Hot Water (G20)	1.6 m³/h
Gas Flow at P max. – Heating Mode (G20)	1.3 m³/h
Gas Flow at P min. (G20)	0.480 m³/h
CE Number (PIN)	CE-0063CP3646
Flue Gas Mass Rate in Heating Mode at P min.	2.08 g/s
Flue Gas Mass Rate in Heating Mode at P max.	5.5 g/s
Flue Gas Mass Rate in Hot Water Handling Mode at P max.	6.9 g/s
Flue Gas Temperature (80 °C/60 °C) at P max.	55 ℃
Flue Gas Temperature (80 °C/60 °C) at P min.	55 ℃
Flue Gas Temperature (50 °C/30 °C) at P max.	43 ℃
Flue Gas Temperature (50 °C/30 °C) at P min.	32 ℃
Flue Gas Temperature in Hot Water Handling Mode	71 ℃
Flue Gas Temperature when Overheating	105 ℃
Released System Types	C13, C33, C43, C53
Nominal Efficiency at 80/60 °C	99.1 %
Nominal Efficiency at 50/30 °C	104.0 %
Nominal Efficiency at 40/30 °C	106.0 %
Nominal Efficiency in Partial Load Operation (30%) at 40/30 °C	109.9 %
NOx Class	5
Product Dimensions (Width)	375 mm
Product Dimensions (Depth)	295 mm
Product Dimensions (Height)	602 mm
Net Weight	22 kg
Weight when Filled with Water	26 kg
Electric Connection	230 V / 50 Hz
Built-in Fuse (slow-blow)	T2/2A, 250V
Max. Electrical Power Consumption	23 W
Standby Electrical Power Consumption	2 W
Level of Protection	IPX4D

Vaillant Ecofit Pure 412 Boiler Details

The Vaillant Ecofit Pure 412 is a highly efficient, compact heat generator designed for closed heating installations and hot water generation. It operates with condensing technology, contributing to its high efficiency and reduced heat loss from the appliance casing, meaning compartment ventilation is generally not required when used with a concentric flue system.

As a licensed member of the Benchmark Scheme, Vaillant ensures that the Ecofit Pure 412 adheres to stringent industry standards. This scheme holds both manufacturers and installers accountable for providing appropriate equipment and ensuring its correct installation, commissioning, and servicing by competent persons, in line with Building Regulations.

Safety is paramount for the Ecofit Pure 412. The manual outlines critical precautions, emphasizing that all setup, installation, maintenance, and repair work must be performed by competent and qualified professionals. Users are provided clear instructions on what to do in case of a gas leak or suspected flue gas escape, prioritizing immediate evacuation and notification of authorities.

Electrical safety warnings highlight the risk of death from electric shock, mandating disconnection from the power supply and a waiting period for capacitor discharge before any work on live components. The product requires installation of necessary safety devices in the heating system, adhering to national and international laws and guidelines.

To prevent corrosion damage, maintaining suitable combustion and room air quality is crucial. The boiler should not be used in environments with explosive or flammable substances, and the combustion air supply must be free from fluorine, chlorine, sulfur, dust, and other chemical contaminants, recommending separate installation rooms for certain commercial settings.

Proper heating water quality is essential for the longevity and performance of the boiler. The manual stresses the importance of checking pH levels, treating hard water, and removing sedimentary materials or magnetite. It explicitly recommends specific additives for cleaning and frost protection, while warning against the use of unsuitable chemicals that could cause system damage.

The boiler features a user-friendly operating concept with a clear display, allowing access to an installer level for detailed diagnostics and settings. This includes a "Live Monitor" to display current operating status codes (S.xx) and various "check programmes" (P.xx) for tasks like purging the system or testing maximum/minimum load operation.

An integrated burner anti-cycling time (adjustable via diagnostics code d.02) helps prevent frequent on/off switching of the burner, which can lead to energy losses. This feature is active during heating mode but does not affect hot water generation. Fault codes (F.xx) provide clear indicators for troubleshooting, and the system stores the last 10 fault messages for review.

Regular inspection and maintenance are vital, with annual checks recommended for gas flow rate, combustion analysis (CO, CO2 content), flue integrity, and general condition. Specific tasks like cleaning the heat exchanger and checking burner seals are advised every five years, ensuring optimal and safe long-term operation of the Vaillant Ecofit Pure 412.

Frequently Asked Questions (FAQs)

Can't find the answer you need? Here are some frequently asked questions about the Vaillant Ecofit Pure 412 Boiler, and we answer them below.

Who is qualified to install or service the Vaillant Ecofit Pure 412 Boiler?

Only competent persons who are sufficiently qualified, such as customer service technicians or authorised professionals, should carry out setup, installation, start-up, inspection, maintenance, repair, and decommissioning.

What should I do if I smell gas in the building where the boiler is installed?

If you smell gas, immediately avoid gas-smelling rooms, open doors and windows for ventilation, do not use naked flames or electrical switches, and if safe, close the emergency control valve. Warn others, leave the building, and notify the gas supply company from outside.

How often should the Vaillant Ecofit Pure 412 Boiler be inspected and maintained?

The manufacturer recommends adhering to minimum annual inspection and maintenance intervals. Certain tasks, like removing the gas-air mixture unit or cleaning the heat exchanger, are specifically suggested every 5 years, or if required sooner by inspection results.

Why is the quality of heating water important for the boiler?

Poor quality heating water can lead to material damage due to corrosion, accumulation of sedimentary materials, or incorrect pH values. It is crucial to check the water's clarity, pH value, and treat it if necessary to prevent issues like aluminium corrosion or system blockages.

Can I use any frost protection or cleaning additives in my boiler's heating water?

No, only suitable additives recommended by Vaillant (e.g., specific Fernox, Sentinel, or Adey products) should be used. Unsuitable additives can cause component changes, noises, and potential damage to the system. Always follow the additive manufacturer's instructions.

What is the purpose of the burner anti-cycling time?

The burner anti-cycling time is an electronic restart lockout feature designed to prevent the burner from frequently switching on and off. This minimizes energy losses and contributes to the boiler's overall efficiency. It's active only in heating mode.

How do I access fault codes or the fault memory on the boiler?

You can access the fault memory by calling up the installer level (pressing 'i' and '+' simultaneously, then entering code 17). From there, navigate to "fault codes" (F.xx) to view the last 10 stored fault messages and troubleshoot.

Is the Vaillant Ecofit Pure 412 Boiler compatible with all flue systems?

The product is designed to be installed and operated in conjunction with specific air/flue pipe accessories listed in applicable documents. It is certified for use only with a concentric flue system, and compartment ventilation is not required due to its high efficiency.

What does the CE label on the boiler signify?

The CE label indicates that the Vaillant Ecofit Pure 412 Boiler complies with the basic requirements of all applicable European directives as stated on its identification plate, affirming its conformity to relevant safety, health, and environmental protection standards.

How do I remove the front casing of the Vaillant Ecofit Pure 412 for servicing?

To remove the front casing, first undo the two screws. Gently press the casing backwards in the centre and pull it downwards from the lower edge to release the retaining clip. Then, pull the lower edge forwards and lift the casing upwards from its retainers.

What are the minimum clearances required around the boiler?

Minimum clearances vary: 150 mm at the top (for top air/flue connection), 75 mm (for rear air/flue connection, reducible to 20 mm with a removable surface above), 150 mm at the bottom, 5 mm on the sides (70 mm if side sections need removal), and 600 mm at the front.

How can I check the CO₂ content during commissioning or maintenance?

To check CO₂ content, start the product with check programme P.01 (maximum load) and wait 5 minutes for stability. Unscrew the cover from the flue gas analysis point and measure the CO₂ content. It should be 9.2 ±1% for natural gas G20 (Great Britain).

What if the gas flow rate is not within the permissible range during commissioning?

If the gas flow rate is outside the permissible range, you must check all piping and ensure correct gas flow rates. The product must only be put into operation once these rates have been corrected. If issues persist, contact the gas supply company or Vaillant customer service.

Can the Vaillant Ecofit Pure 412 be installed in a room prone to frost?

No, the product must not be installed in rooms prone to frost. While it has a frost protection function, this can be deactivated under certain wiring conditions (e.g., 230V 3-wire connection), necessitating an additional frost protection thermostat if such a risk exists.

How do I reset the boiler parameters to factory settings?

To reset parameters to factory settings, navigate to diagnostics code d.096 in the installer level. Set the diagnostics code to '1' and confirm to initiate the reset process.