Step-by-step instructions for operating a Baxi gas boiler: from installation to self-tuning and first start-up

Initially, operating a Baxi gas boiler may seem difficult, but with the correct help, it becomes a simple task. Gaining an understanding of the sequential process will guarantee safe and effective operation of your boiler, regardless of whether you’re installing it for the first time or simply want to adjust its settings. Everything from the first installation to self-tuning and the crucial first start-up will be covered in this tutorial.

We will start by going over the installation and what you need know. This include deciding on a good spot, getting ready the equipment and supplies you’ll need, and doing the right steps to secure your boiler in place. For best results and to avoid problems later, installation must be done correctly.

Setting up your Baxi boiler for operation comes next, after it has been firmly installed. This entails linking it to the electrical, water, and gas systems in your house. To assist you in securely and successfully navigating these connections, we’ll provide you clear instructions. To guarantee that your boiler operates accurately and effectively right away, proper setup is essential.

It’s time for self-tuning after setup. By going through this process, you can adjust the boiler’s settings to suit your own requirements and tastes. To guarantee your boiler runs as efficiently as possible, we will walk you through regulating the pressure, temperature, and other crucial factors. Finding the ideal balance between comfort and energy efficiency is made easier with the aid of self-tuning.

Lastly, we will talk about the initial startup process. This crucial step involves turning on the boiler for the first time, making sure all connections are tight, and looking for leaks. You can complete this task with confidence if you follow our step-by-step instructions, and your Baxi boiler will be ready to reliably heat your home and provide hot water.

Installation of a Baxi gas boiler

There are multiple steps involved in boiler installation:

1. Installing a water filter on the pipeline supplying water to the hot water system. It is imperative to install shut-off valves on both sides, making it possible to dismantle the filter for maintenance, repair or replacement.
2. Placing the unit in a designated area. Floor-standing units are simply placed in the desired location in the room, while wall-mounted boilers are hung on the surface of solid walls. Mounting to plasterboard partitions or other structures that do not have sufficient load-bearing capacity is prohibited. Mounting to the wall is done using special brackets (sleds), which are included in the delivery set.
3. All supply pipelines are connected – gas, forward and return coolant, hot water supply. A coaxial chimney is installed and connected (some models are equipped with a double vertical chimney). The presence and quality of traction is immediately checked.

Connecting the boiler to the power supply network is the last step. Operating rules forbid using this to power other devices, so it needs its own outlet.

User manual

First, the chimney and heating circuit need to be cleaned or flushed. Any contamination can interfere with the system’s nominal operating mode, leading to faster component wear and eventual system failure.

Professionals from an approved service center who also handle the installation’s initial setup are required to connect the boiler.

The boilers are delivered to the retail chain fully assembled and ready for use, having undergone pre-sale preparation. This indicates that no further action is needed.

Although this is what the manufacturer says, in actual use, it is nearly always necessary to modify the settings to reflect the current state of technology or technical circumstances. The boiler is turned on and off based on the temperature range of the extract air and the minimum and maximum gas pressure, which are determined by the setting.

Service organizations are required to operate in every setting. Independent activation may be viewed as a breach of the service center agreement, leading to the denial of repairs. The warranty period commences at the time of device startup.

How to turn on

Only after all the pipelines supplying gas, heating, and water have been connected can you connect the boiler to the power supply network.

It is imperative to thoroughly verify that all connections are made correctly, with particular emphasis on the gas pipeline.

Use a soap solution to check for leaks; if any are discovered, fix them right away, either by yourself or with the assistance of experts in the relevant field. After that, the make-up tap can be opened to add water to the boiler.

A pressure of between 0.7 and 1 mBar is ideal. The boiler can be turned on once the pressure reaches the desired level.

First start-up

You can activate the boiler by connecting the power supply and all communications.

Method:

• Open the gas tap.
• Set the heating and DHW supply mode (or only DHW). These modes correspond to the designations "Winter" and "Summer".
• Set the desired temperature by pressing the “+” or “-” buttons.

Following this, the boiler and burner will both turn on. Frequently, the boiler gets blocked as soon as an error shows on the display following the first start.

Air that is still in the pipes is the cause of this. Resetting the error and restarting the device can be accomplished by pushing and holding the "R" button for a few seconds. It might take a few iterations of this scenario before the air is totally expelled.

Loosening the screw and opening the pump will release air more quickly. The power is turned off during the procedure. As soon as water starts to flow, the air under the pump cover will release, the screw will be tightened once more, and the machinery will restart.

How often should it turn on?

Several factors determine how often the boiler is turned on:

• Unit power.
• Correct boiler settings.
• Availability of a room thermostat.

The device quickly heats up the heating element and turns off if the power is too high. The temperature sensor is triggered, reactivating the boiler, while the circulation pump guarantees the supply of fresh portions of cooled coolant.

Programmatic power reduction is possible. Additionally, the boiler needs to be reconfigured. Specifically, parameter F11 (waiting time before restarting) needs to be increased to the maximum of 10 minutes.

Because the air cools and heats up considerably more slowly when using a thermostat, you can extend the amount of time between unit starts.

Temperature adjustment

There are "+" and "-" buttons to the right and left of the display that can be used to change the temperature of the heating agent (older models have a special regulator that can be turned clockwise to raise the temperature and vice versa).

If a room thermostat is used, only limit values are set on the boiler; all other adjustments are made from it.

Avoid making abrupt adjustments to the temperature while adjusting the parameters. It is essential to smoothly switch modes and give the system some time to overcome its inertia. This will prolong the boiler’s life and ease the switch to a different mode.

Pressure setting

A drain valve is used to release pressure, and a make-up valve is used to increase pressure.

It is believed that a value between 0.7 and 1 mbar is ideal. Usually Baxi boilers independently maintain the desired value, but sometimes failures occur. There may be an OM leak if there is a persistent drop that does not go away even after the system is replenished.

This could indicate external elements, underfloor heating systems, or leaky pipes or radiators.

A malfunctioning bleed valve is frequently the cause of the issue. An unusual rise in pressure could be the result of damage to the expansion tank membrane, a broken or open make-up valve, or both.

Optimal operating mode

The user manual provides a detailed description of the boiler’s ideal operating mode.

Its specifications:

• Exhaust temperature – 70-75°.
• Water pressure – 0.7-1 mbar.
• Parameters F08 and F10 are adjusted to the minimum and maximum values ​​respectively.

Commissioning involves adjustments; further adjustments are performed on a yearly basis or following repair work.

If you follow the correct procedures, operating a Baxi gas boiler can be simple. This tutorial will walk you through every step of the process, including the first installation, self-tuning, and startup. You will discover how to safely install your boiler, tweak parameters for best results, and guarantee a seamless and effective start-up. These comprehensive instructions will enable you to confidently and easily maintain your Baxi gas boiler, regardless of whether you’re a do-it-yourself enthusiast or a homeowner trying to learn more about your heating system.

Self-diagnosis

A continuous, automatic process, self-diagnosis begins as soon as the boiler is turned on for the first time.

It operates continuously in the background and doesn’t require any special actions. Any error is instantly detected by the matching sensor, which shows it on the display. The control board then stops the device from operating. Hold down the "R" button for a few seconds in order to reset the error and restart the boiler.

Basic error codes and their interpretation

Errors in BAXI boilers (also known as Baxi errors) are specific departures from the standard operating mode that are detected by sensors and displayed on the unit’s display as a numerical code beginning with the letter E (error).

Let’s examine them in more detail:

Error code	Fault type	Solution
E01-02	Lack of coolant in the system (flow sensor malfunction)	Recharging the system, replacing the sensor
E03	No flame	Injector cleaning, gas supply, ignition system repair
E04	False evidence of the presence of a flame (spark breakdown to the sensor)	Removing water droplets from the board, insulating or replacing the sensor
E05	Exhaust temperature sensor break	Restoring contact
E06	Exhaust temperature sensor short circuit	Replacing the sensor
E07	Broken DHW temperature sensor	Restoring contact
E08	Short circuit of DHW temperature sensor	Replacing the sensor
E09	Fan failure	Device repair or replacement
E10	Malfunction of the smoke removal system	Cleaning the chimney, restoring the working condition of the smoke removal system
E13	Short circuit of the OM flow sensor	Replacing the sensor
E15	Malfunction or failure of the control board	Board repair or replacement
E16	Exceeding the permissible boiler heating temperature	Cleaning the heat exchanger from scale, topping up the system with water
E18	Overheating of the smoke exhaust sensor	Repair or replacement of the sensor
E27	Short circuit or break in the air pressure sensor	Replacing the sensor

Useful video

This video will teach you more about connecting, configuring, and starting this boiler:

Step	Instruction
1	Choose a suitable location for the boiler, ensuring proper ventilation and accessibility.
2	Mount the boiler securely on the wall using the provided brackets.
3	Connect the gas supply line to the boiler, ensuring all connections are tight and secure.
4	Attach the water supply and return lines, making sure there are no leaks.
5	Install the flue system according to the manufacturer"s instructions to ensure proper ventilation.
6	Connect the electrical supply to the boiler, following the wiring diagram in the manual.
7	Fill the system with water, checking for any leaks and bleeding the radiators if necessary.
8	Turn on the gas supply and check for any leaks using soapy water.
9	Power on the boiler and set the desired temperature on the control panel.
10	Run the boiler for a few minutes to ensure everything is working correctly.
11	Check the pressure gauge to ensure the system is within the recommended range.
12	Monitor the boiler during the first few hours of operation to ensure there are no issues.

It’s easy to become proficient with a Baxi gas boiler; the first step is always correct installation. For maximum safety and effectiveness, make sure the boiler is positioned correctly, fixed firmly, and connected to the gas and water supplies. It is important to adhere to both local laws and the manufacturer’s instructions in order to prevent problems.

For best results, the self-tuning stage is crucial after installation. Optimizing the boiler’s settings to suit your unique requirements can enhance comfort and efficiency. Take your time setting the desired temperature and other parameters after becoming familiar with the control panel. This step guarantees that the boiler runs efficiently and fulfills the hot water and heating needs of your home.

It’s important to pay close attention to every detail during the initial startup. Monitoring the system’s operation and gradually turning it on aid in the early detection of any possible issues. Inspect for leaks or strange noises, and confirm that the boiler heats up as it should. Your Baxi gas boiler will operate more efficiently and last longer with routine maintenance and sporadic inspections.

You can safely operate your Baxi gas boiler and create a warm and cozy home by following these easy-to-follow instructions. To get the most out of your boiler, self-tuning, cautious start-up, and proper installation are essential. If you follow these recommendations, you’ll experience dependable performance and peace of mind.

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