How to set up (adjust) a gas water heater?

Basic rules of use

Do not use the gas water heater before reading the operating instructions supplied with it. Here is a general list of rules that are relevant for any instantaneous water heaters:

• Only specialists from the gas supply company can connect the device to the gas main;
• changes cannot be made to the design;
• ventilation should be maintained in good condition;
• for speakers with an open firebox, the chimney must have good draft force;
• During operation, the device should not touch the front panel of the water heater and the smoke exhaust elements.

Note! If you smell gas in the room, you must immediately turn off the water heater and ventilate the room. Gas workers should be called to determine the location of the gas leak. Do not operate such a device until the malfunction is resolved.

Do not operate such a device until the malfunction is eliminated.

The following recommendations will help extend the life of your gas water heater:

• It is undesirable to set the heating temperature above 55°C to avoid increased scale formation;
• it is risky to use a water heater without a water filter if the water in the water supply is hard;
• The heat exchanger should be cleaned of scale as it appears.

Compliance with all operating rules will save fuel and increase the service life of the device.

How to clean a Bosch speaker

According to Bosch recommendations, the heat exchanger should be flushed every 2 years. The service is performed at the customer's home. In the absence of regular cleaning of the gas water heater, the internal cavity of the heat exchanger becomes so overgrown with scale that washing will only be performed at a service center. Service at the customer's home will be ineffective. At the service center, the coil is washed using a special installation. The chemical reagent is supplied under pressure inside the radiator.

You can clean a Bosch flow-through gas boiler at home, if the internal cavity of the heat exchanger is slightly clogged, using any chemical reagents designed to remove scale. Available remedies can come to the rescue: lemon juice, acetic acid.

Cleaning the heat exchanger of a Bosch geyser

If, after removing the water heater casing and inspecting the heat exchange unit, soot contamination is found, it will require dismantling and complete washing. A smoked heat exchanger should be cleaned by removing it from the gas water heater.

The first step is to close the shut-off valves of the water and gas supply to the heating column. If you intend to completely remove the device and dismantle the heat exchanger, placing the column on the table (this will be more convenient) - disconnect the supply gas hose, water supply inlet and outlet, then remove the device from the mounts.

However, there is no need to remove the entire water heater; you can remove the radiator of the heat exchange module at the installation site of the device. Let's consider this maintenance option in detail.

Removing the water heater heat exchanger

The necessary tools are flat-head (minus), Phillips (plus) screwdrivers and duckbill pliers.

Attention: despite its externally large size, the heat exchanger is hollow inside and lightweight. When dismantling, handle it carefully, otherwise you will damage the shell!

The procedure for removing the heat exchanger using the Bosch WR13-2B as an example:

1. Shut off the cold water shut-off valve in the supply to the water heater;
2. Removing the column casing. Remove the adjustment knobs by pulling them towards you, unscrew the two screws on the sides at the bottom of the housing, pull the lower part of the casing towards you, lift it and remove it from the upper hooks;
3. Pulling out the bracket securing the tube to the water distribution unit. Pry the bracket with a screwdriver, remove it using the duckbills, and move the tube to the right. Before removing the retaining bracket, place a wide container to drain about a liter of water from the heat exchanger;
4. Removing the sensor terminals from the heat exchange tank and housing. Located on the left side of the device, wires go to them;
5. Pulling out the bracket that fixes the water supply tube at the inlet to the heat exchanger (located on the right under it). The principle is the same - pry it out with a screwdriver, carefully pull it out with duckbill pliers, then remove the tube completely;
6. Removing the protective screen in front of the ignition group by unscrewing two screws with a Phillips screwdriver. Then you need to remove the ignition group from the socket and remove it;
7. Pulling the bracket from the hose at the outlet of the heat exchange radiator (using a screwdriver and duckbills), disconnecting the hose. Don't forget to drain the water first by opening the faucet on the sink;
8. Unscrewing the two screws securing the sides of the main burner;
9. Unscrewing the two screws securing the gas manifold under the burner (located under it, in the center);
10. Removing the guide bar holding the heat exchanger at the top. There are two side screws for a Phillips screwdriver. Unscrew and remove the bar.

All that remains is to remove the heat exchanger along with the burner. Place the palms of your hands under the burner on its sides and firmly, not without extra effort, press the shell of the heat exchange radiator with your thumbs. Lift them up, then pull the top part of the heat exchanger towards you and remove both modules out.

Cleaning the heat exchanger and main burner

To clean and rinse the heat exchange radiator, you need to place it in a bathtub or other container of suitable size. To avoid scratching the bottom and walls of the bathtub bowl, you should first lay a cloth in it.

Using regular detergents, hot water and a long-bristled brush, remove any grime from the inside and outside of the unit. Before installing it back into the column, it needs to be dried.

Setting up an automatic column

Such devices are equipped with only one regulator. It is responsible for power and heating temperature. The built-in self-diagnosis system conducts a complete assessment of the operation of the units upon startup. If something is wrong, a red indicator on the panel lights up - the equipment is blocked from turning on. In this case, you need to adjust the pressure as described above.

After that:

• Remove the batteries from the compartment.
• Turn off the microswitch.
• Insert batteries.
• Open the hot water tap and turn on the microswitch.
• Set the burner pressure to maximum.
• When the settings are saved, the orange light will light up.

The remaining columns can be adjusted by turning the toggle switch and controlling the strength of the water flow.

Unfortunately, you can't just set the settings according to the instructions, since each system has different parameters. If you are unable to adjust the operation of the gas water heater, contact a specialist.

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Video: connecting a gas water heater with your own hands

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Starting the device and adjusting the temperature

To correctly set up hot water in the device, you must:

• Open the hot water mixer fully;
• Using the water switch, select the required temperature value;
• Close the tap.

According to the advice of professionals:

• Wait for the moment when the pressure in the line drops, but the column will still work;
• Turn the water toggle handle to the maximum;
• Turn the gas regulator to the minimum value until the temperature is as desired.

For final preparation, it is worth adjusting the gas supply. To do this, you need to look at the technical data sheet and find out the minimum value for this brand.

The toggle switch is turned to the minimum value.

Turn on the gas supply valve. At the gas water heater, Electrolux and Ariston do this after connecting to the network. The Oasis, Junkers and Bosch gas water heaters are connected when the batteries are installed.

The hot valve is turned on and the device starts working.

How to adjust the water temperature

Turn on the mixer and check the water heating temperature. It must be twenty-five degrees more than the original one. It is worth noting that the water in a gas boiler heats up gradually. The geyser is adjusted using the gas lever.

Professionals do not recommend heating water above fifty-five degrees. This has a bad effect on the device, as scale forms.

Blood pressure problems

Setting up a geyser requires some time. Accordingly, the result will be visible later. After each stage, it is worth pouring out the water and letting it heat up again so that the values ​​are correct. Low pressure in the device may interfere with normal operation.

Why you should choose a gas water heater from Ariston

If you have problems with blood pressure, you should perform the following manipulations:

• Remove the casing from the device;
• Loosen the locking bolt, use a pressure gauge to check;
• Remove the seal from the adjusting screw;
• Turn on the boiler;
• Set the values ​​to maximum, unscrew the hot water supply taps;
• Adjust the desired pressure.

The Bosch gas water heater, namely its pressure in the nozzles, is regulated in the following way:

• Remove the casing;
• Attach a pressure gauge;
• Loosen the locking screw;
• Attach a pressure gauge to check the pressure in the injectors to the nozzle.

Next, the Bosch gas water heater with maximum thermal power is regulated:

• Remove the seal from the screw;
• Turn on the device;
• Hot water taps are turned on;
• The adjusting screw adjusts the pressure in the nozzles;
• Put the seal in place.

There are brands that have a special “Winter-Summer” mode with temperature adjustment. This handle was made at the bottom of the Ariston gas water heater. Adjustment of the Oasis gas water heater is located on the front panel. The peculiarity of the mode is that in winter the power is higher than in summer. The heating power of the liquid in the column is directly related to the temperature of the inlet stream. In winter, the regulator is set to “maximum”, the heating will be at its highest. In summer, the temperature of the inlet flow is higher and is set to the minimum position. This saves resources.

It is easy to remove bad pressure when checking.

To do this, you must perform the following manipulations if the device has already been used:

Pay attention to the rubber membrane. The performance of this part is directly related to the pressure in the line

At the moment the integrity of the membrane is broken, namely when it is exhausted, gas does not flow and the burner does not turn on. The problem is solved by replacing the part. Pay attention to the mesh filter. It is located at the entrance to the water block. The water pressure becomes lower due to debris clogging the part. The problem is solved by cleaning.

Poor pressure

Let's look at what affects the water pressure in a gas water heater:

1. Presence of blockages. Every pipe through which water moves tends to become clogged with debris. If we take an Electrolux geyser as an example, the blockage occurs in the mesh filter filled with lime and rust. If the water flow is low, the pressure will be minimal.
2. Engineering works. In this case, scale appears inside the heat exchanger. When the water is shut off and the water unit of the gas water heater resumes operation, a “water hammer” occurs, after which some of the scale penetrates into the mixer and forms a blockage.
3. Device power. For Bosch geysers and other models, the power of the device is important. It will create good pressure in the system. If the power of the device is less than eight, then the pressure will be minimal. For good operation of the geyser water unit, it is worth purchasing a device with a power of eight to ten kilowatts.
4. Scale. It usually occurs in metal containers in which water is brought to a boil. In a gas water heater, the heat exchanger is considered a tank. With hard water, scale forms on its walls, which subsequently moves into the tubes, due to which the pressure decreases.
5. Preventive actions. Any device, including a geyser, needs regular maintenance, namely the prevention of blockages. In most cases, a decrease in water pressure occurs due to careless use of the device.

The main differences between “automatic” and “semi-automatic”

You can understand in more detail what the difference is between the two types using the table:

How to do it right: Replacing an old gas water heater with a new one: 5 important points

Bosch speaker system

Structurally, Bosch GCs consist of a housing, a hole for installation, a window for monitoring the combustion process, a pressure regulator, a gas fitting, a chimney pipe, a draft sensor, a combustion chamber, piezo ignition and a tap water connection unit.

The body is made by stamping from high-strength sheet steel and is protected from temperatures and aggressive environments by a layer of enamel, which protects the unit not only from chemical and thermal damage, but also from all kinds of impacts. The boiler control knobs are located on the body.

The control system includes two regulators - for pressure and temperature of heated water. The water pressure is regulated mechanically - by turning the knob; clockwise - the flow rate increases, and counterclockwise - it decreases. The torch burning level is set using a slider control. The unit is connected to water and gas supply systems using a threaded connection.

The boiler chimney is made in the form of a pipe with a length of 10 to 15 cm and is used to discharge exhaust flue gases into the atmosphere.

Note! The dispenser operates on the principle of natural circulation, the draft in it is formed due to the height of the chimney and is controlled by a draft sensor, which sends a signal to automatically turn off the dispenser if the parameter drops to “0”. The gas control system includes a burner, ignition device, combustion chamber, shut-off and control valves and a safety valve

The heating circuit consists of a pipe coil and pipes at the inlet/outlet of tap water. The automation system protects the Bosch gas instantaneous water heater from an emergency and is designed to preserve the equipment and ensure safe living conditions

The gas control system includes a burner, ignition device, combustion chamber, shut-off and control valves and a safety valve. The heating circuit consists of a pipe coil and pipes at the inlet/outlet of tap water. The automation system protects the Bosch gas instantaneous water heater from an emergency and is designed to preserve the equipment and ensure safe living conditions.

What pollutes a Bosch gas water heater?

The reasons for contamination of a flow-through water heating device are related to its functions and operating principle:

• Flowing water supply. The column heats the water flowing through its heat exchanger, which brings with it mineral inclusions. As a result, clogging deposits settle on the walls of the heat exchanger and pipes of the device and gradually increase.
• Burning gas burner . In case of incomplete combustion of gas (see reasons below), carbon deposits and soot are formed. The latter clogs the fins of the heat exchanger and the chimney, further impairing the combustion of gas fuel and slowing down the heating of water.
• Low quality tap water. Due to the hardness of tap water, when it is heated, salts are released from the composition, which are deposited in the form of scale inside the pipes and heat exchanger. The thicker the layer of scale, the narrower the lumen of the pipe and the worse it passes water.

In addition to magnesium and calcium salts dissolved in water, it contains mechanical impurities from rusting pipes. They also participate in the gradual growth of the pipe channel in the heat exchanger together with scale.

As for soot, its active formation is facilitated by increased pressure on the burner, weak chimney draft (low height, cracks, lack of thermal insulation, etc.), lack of supply air (PVC windows are sealed, but there is no supply valve).

Soot deposition is also facilitated by the use of forced exhaust in a room with a working water heater (causes a lack of oxygen), dustiness of the room (dust enters the burner, due to which complete combustion of the gas does not occur).

Since scale formation is more intense when water is heated above 60 o C, some owners of German water heaters set the burner heating temperature to low. However, as a result of this, the working cavities of the heat exchanger gradually become overgrown with a greenish coating from condensate.

As a result, the removal of flue gases deteriorates, which contributes to the accelerated formation of soot. A heat exchanger clogged with soot heats water very poorly - soot is a good heat insulator.

Why did the column stop regulating the temperature?

A common problem with cheap water heaters that have been operating in hard water conditions for some time. After 5-6 years of normal operation, a breakdown occurs: the inability to change the temperature of the water in the column. The reason is the failure of one of the regulators: flow or gas. The automation of Chinese water heaters is “cured” by replacing the boiler. In gas instantaneous water heaters with precise control of the water temperature, the cause of the malfunction lies in the fact that the output sensor has burned out. The problem is solved by replacing it. The sensor is relatively inexpensive; with the help of a specialist, it can be quickly dismantled and a new one installed. In columns with a temperature controller and electronic control, the inability to set a comfortable mode may be due to software failures. To ensure that the water is not very hot, the software will need to be re-flashed.

How to solve a problem

If the filter is clogged, you should remove this part from the device. Clean it with a stiff brush and water. If, during cleaning, a violation of the integrity of the filter is noticed, it is worth replacing the part with a similar one.

If the hot water pipe is clogged, you should run cold water in the opposite direction. The plug is removed, a container is placed under the device under water and both taps are turned out. The spout is closed with your finger. It is considered possible that cold water will push the clog forward.

It is not recommended to use chemicals that remove scale from the column. Their composition can easily destroy the metal surface. The best option is to use citric acid, which is dissolved in hot water.

If the blockage has advanced further than the pipes, it can easily penetrate into the faucet. The most “vulnerable” places where blockages mainly appear are considered to be a thin rubber hose, a filter and a faucet. The problem can be solved by disassembling the mixer and performing a thorough inspection. Dirt is removed using running water.

We prepare documents before connecting the gas water heater

Initial installation often comes with a lot of expense and paperwork. However, this fact does not discourage apartment owners.

If there is no gas pipeline in the house, you will have to install the gas supply lines yourself. This will require a lot of money, so it is advisable to team up with neighbors who also want to install speakers.

What documentation steps must the owner go through?

First, obtain consent from gas distributors and transporters to supply gas and to install a land allotment under the gas pipeline. Plus calculate consumption and receive an extract with technical conditions.

Secondly, create a project. This includes concluding an agreement, collecting all documents and their thorough examination, obtaining permission from inspections.

Thirdly, after completing the installation work, you need to conclude an agreement with GORGAZ and OBLGAZ.

It is impossible to legitimize such activities without the appropriate documents. Below is a list of them.

Basic rules of use

Do not use the gas water heater before reading the operating instructions supplied with it. Here is a general list of rules that are relevant for any instantaneous water heaters:

• Only specialists from the gas supply company can connect the device to the gas main;
• changes cannot be made to the design;
• ventilation should be maintained in good condition;
• for speakers with an open firebox, the chimney must have good draft force;
• During operation, the device should not touch the front panel of the water heater and the smoke exhaust elements.

Note! If you smell gas in the room, you must immediately turn off the water heater and ventilate the room. Gas workers should be called to determine the location of the gas leak. Do not operate such a device until the malfunction is resolved.

Do not operate such a device until the malfunction is eliminated.

The following recommendations will help extend the life of your gas water heater:

• It is undesirable to set the heating temperature above 55°C to avoid increased scale formation;
• it is risky to use a water heater without a water filter if the water in the water supply is hard;
• The heat exchanger should be cleaned of scale as it appears.

Compliance with all operating rules will save fuel and increase the service life of the device.

Features of Bosch geysers

The units of this brand are universal and can operate on two types of gas: natural and liquefied. Gas pipes are made for a 3/4 inch connection, and for tap water - 1/2. The pipe for exhausting flue gases into the environment depends on the model, its diameter ranges from 115.0 mm to 135.0 mm.

The Bosch Group of Companies is equipped with emergency sensors for draft in the gas-air path, flame control, a temperature sensor for hot water supply and a “gas control” mode.

Modern units are equipped with automatic ignition using an independent power source from batteries or piezo ignition with a start button.

The Bosch water heater is equipped with a copper boiler for hot water supply, and the plant guarantees its operation for up to 15 years. This is facilitated by a system of smooth modulation of the flame of the burner device, to automatically maintain the specified DHW temperature for the consumer. The achievement of the model is the low threshold of requirements for the parameters of the source water; it starts working already at a pressure of 0.1 atm.

Devices with piezo ignition have a fan to organize draft, so they work with a specially equipped chimney, vented horizontally through the wall into the atmosphere.

Additional Information! The Bosch AM1E series geyser is equipped with an electronic control panel that shows users the temperature conditions of the installation and error codes of the flow unit in real time.

The main advantages of geysers

Column from Bosh

Gas water heaters have been constantly used for many decades to obtain water at the required temperatures.

The main advantages of using this heating equipment:

• ease of use;
• saving;
• aesthetic external characteristics;
• acceptable sizes;
• safety;
• durability.

The main criterion for the efficiency of equipment is its degree of “gluttony”.

Consumers of geysers who have experience using other heaters note that working with such devices is much cheaper than with electric water heaters or devices that operate using alternative fuels.

This is due to the fact that natural gas, which is used to “heat” water, is much more economical in cost than other “energy sources,” and with the help of modern equipment colossal results can be achieved.

What malfunctions do the Neva Lux dispenser have?

The display of the Neva Lux geyser indicates an error code when problems occur.

Common fault codes that also occur at the Neva Transit gas water heater:

E7. After seven attempts to turn on the device, it goes out or does not work at all. The problem lies in the failure of the electric valves, the accumulation of soot on the electrode, the mixing of the ionization sensor, or the gas block boiling. The solution is to replace faulty parts or clean the soot with a brush.

L0. Insufficient fuel supply.

Causes:

• Poor water pressure;
• Decrease in temperature;
• Exceeding the pressure of the gas water heater Neva Lux.

The problem can be solved by adjusting the temperature, installing a reduction gear and descaling the radiator.

E0. The device turned off on its own. Fuel does not move into the device. The solution is to check the gas valve of the Neva Lux gas water heater. In most cases, the gas supply stopped for some time.

E8. Malfunction related to the traction sensor. It is usually associated with a clogged chimney or a broken sensor. The solution is to clean the chimney from soot yourself or with the help of utility services, or replace the sensor with a new one, as well as check the tightness of its contacts.

Main types of gas flow devices

All Bosch flow dispensers are divided into two classes according to the type of ignition:

1. Automatic, when the gas is ignited simultaneously with the opening of the hot water taps, the process is carried out using a spark from batteries. The more modern automatic ignition system of Bosch main burners receives a spark from a mini hydraulic turbine operating along the flow of heated water, generating sufficient current to ignite the main burner. This is a more expensive speaker kit, but it is worth it because it ensures complete energy independence of the unit.
2. Semi-automatic, when first the ignition wick is ignited, which ignites the fuel in the combustion chamber, then the hot water heater turns on automatically when water flows in the hot water system. After stopping water use, the column automatically turns off, and then when the heating cycle is repeated, it will light up again from a constantly burning wick.

Bosch ignition system markings:

• “P”—ignition using a piezo igniter;
• “B” - electric ignition;
• “H” or “G” - ignition using a hydrogenerator.

Therm have three performance types:

• wr10-2p - piezo ignition, flow rate 10 l/min;
• wr13-2p - semi-automatic, flow rate 13 l/min;
• wr15-2p - flow rate 15 l/min.

Note! A complete automatic machine with batteries is marked with the letter “B”, for example, wr 10-2b, and a complete automatic machine with a hydrogenerator “G” - wrd 10-2g, the burner will ignite independently when the hot water tap is opened

Automatic devices

These models are mounted with a concentric pipe and do not require a chimney; compact dimensions facilitate simplified installation. Electronic temperature maintenance is ensured by a simple and ergonomic control panel. The protection of the unit is also provided by ionization control of the torch, protection against overheating of the water heating circuit and a built-in fan for the organized removal of combustion products.

Modification of automatic speakers:

1. Therm 4000S WTD 12AM E (turbo), price as of 07/01/2019 - RUB 27,200.00;
2. Therm 4000S WTD 15AM E, price as of 07/01/2019 - 29,300 rubles;
3. Therm 4000S WTD 18AM E, price as of 07/01/2019 - RUB 30,900.00;
4. Therm 6000WRD 10-2G, price as of 07/01/2019 - RUB 17,545.00;
5. Therm 6000WRD 13-2G, price as of 07/01/2019 -18120.00 rub.;
6. Therm 6000WRD 15-2G, price as of 07/01/2019 - RUB 21,500.00;
7. Therm 2000O W10 KB, battery, price as of 07/01/2019 - 8800.00 rub.;
8. Therm 4000WR 10-2B, battery, price as of 07/01/2019 - RUB 12,500.00.

Semi-automatic speakers

These devices are turned on by a piezo ignition system and a button located at the bottom of the case. In order to turn on the device, just manually press it. The advantage of the design is the separate regulation of power and water flow, regardless of its pressure at the inlet to the boiler. The disadvantage is increased fuel consumption due to constant operation of the igniter.

Line of speakers with piezo ignition:

• Therm 4000WR 10-2P, price as of 07/01/2019 - RUB 12,500.00;
• Therm 4000WR 13-2P, price as of 07/01/2019 - 14959.00 rub.

Note! In order for Bosch speakers to be covered by a 2-year warranty from the manufacturer, the first start-up is carried out by BOSCH service representatives and then one annual maintenance from the company will be required, all services are paid

Geyser Bosch WR 13-2B adjusting gas flow at minimum and maximum power

Hi all.
Today I will write on the topic of everyday life. namely minor repairs and maintenance of the BOSCH WR13-2B geyser. I bought it a long time ago, used it for myself, didn’t think about anything, never gave me any problems.

And one evening, with the lights turned off in the room where it was hanging, but the speaker working, I noticed that the flame in it was glowing too brightly with a yellow tint. This had never happened before, which means there was some kind of problem. I looked from below and... the flame was not burning correctly.

My mood deteriorated a little, I immediately thought that the burner had burned out or the heat exchanger had started to drip. Nowadays, such spare parts are hard to come by... The decision was immediately made - open up the patient. It takes 2 minutes to remove the case from the wall and immediately onto the operating table.

We open it by unscrewing the 2 screws marked in the photo. (the casing has already been removed and they are bailed out)

Then, disconnect the connectors of 2 sensors on the left side, one on the heat exchanger, the second on the “hood” body.

Then, on the sides, unscrew the 2 screws that hold the burner

Poor water heater performance interferes with normal life, doesn't it? The water barely flows or takes a long time to heat up, the burner slightly smolders or soot falls... You need to somehow fix it, find a repairman, negotiate on prices and terms. Why spend money if you can easily clean the heater yourself?

We will tell you how to clean a Bosch geyser with your own hands without contacting a gas specialist. To completely disassemble and clean the device, a “home” set of tools is sufficient. You will learn everything about dismantling the working units of the column, the rules for cleaning its burner, heat exchanger and chimney from the article we have proposed.

Design and principle of operation of Bosch speakers

All boilers are divided into two main classes (based on type of ignition) and several subclasses. Bosch gas instantaneous water heaters are available in the following modifications:

• Semi-automatic columns - the device contains two burners: main and ignition. The wick burns continuously. When the DHW tap is opened, the igniter ignites the gas on the main burner. The igniter is ignited using a piezoelectric element.
• Automatic water heaters - turn on independently when you open the hot water tap. The ignition unit produces a spark to the burner device, igniting the gas. Bosch automatic gas water heaters, in turn, are divided into two subgroups:

In addition to being divided according to the principle of ignition, Bosch speakers are divided into two classes according to their internal structure. There are water heaters with a closed (turbo) and open (atmospheric) combustion chamber. Turbocharged ones have built-in fans that force air onto the burner.

Atmospheric boilers use natural convection of air masses. The service life of Bosch columns is 8-12 years. The service life is affected by the quality of the heated water, compliance with the rules of connection and use established by the manufacturer.

More information about the technical characteristics of water heaters can be found in the table:

Features of Bosch geysers

The units of this brand are universal and can operate on two types of gas: natural and liquefied. Gas pipes are made for a 3/4 inch connection, and for tap water - 1/2. The pipe for exhausting flue gases into the environment depends on the model, its diameter ranges from 115.0 mm to 135.0 mm.

The Bosch Group of Companies is equipped with emergency sensors for draft in the gas-air path, flame control, a temperature sensor for hot water supply and a “gas control” mode.

Modern units are equipped with automatic ignition using an independent power source from batteries or piezo ignition with a start button.

The Bosch water heater is equipped with a copper boiler for hot water supply, and the plant guarantees its operation for up to 15 years. This is facilitated by a system of smooth modulation of the flame of the burner device, to automatically maintain the specified DHW temperature for the consumer. The achievement of the model is the low threshold of requirements for the parameters of the source water; it starts working already at a pressure of 0.1 atm.

Devices with piezo ignition have a fan to organize draft, so they work with a specially equipped chimney, vented horizontally through the wall into the atmosphere.

Additional Information! The Bosch AM1E series geyser is equipped with an electronic control panel that shows users the temperature conditions of the installation and error codes of the flow unit in real time.

How to light a Bosch speaker

Automatic Bosch speakers turn on independently. The user only needs to set the necessary operating parameters: water flow rate, heating intensity. In columns with a modulating burner, you need to set the required temperature.

The water heater will automatically change the combustion power depending on the water pressure. It is a little more difficult to turn on a Bosch column operating in semi-automatic mode.

The operating instructions describe the following procedure: After igniting the igniter, the column will continue to operate in automatic mode. It will turn on automatically when the DHW tap is opened. Learning how to properly use a Bosch gas instantaneous water heater is not difficult.

After just a week of operation, igniting the burner will become commonplace. DHW heating should be regulated using the control unit. It is prohibited to mix cold water to obtain comfortable wash water.

Main types of gas flow devices

All Bosch flow dispensers are divided into two classes according to the type of ignition:

1. Automatic, when the gas is ignited simultaneously with the opening of the hot water taps, the process is carried out using a spark from batteries. The more modern automatic ignition system of Bosch main burners receives a spark from a mini hydraulic turbine operating along the flow of heated water, generating sufficient current to ignite the main burner. This is a more expensive speaker kit, but it is worth it because it ensures complete energy independence of the unit.
2. Semi-automatic, when first the ignition wick is ignited, which ignites the fuel in the combustion chamber, then the hot water heater turns on automatically when water flows in the hot water system. After stopping water use, the column automatically turns off, and then when the heating cycle is repeated, it will light up again from a constantly burning wick.

How to clean a Bosch speaker

According to Bosch recommendations, the heat exchanger should be flushed every 2 years. The service is performed at the customer's home. In the absence of regular cleaning of the gas water heater, the internal cavity of the heat exchanger becomes so overgrown with scale that washing will only be performed at a service center. Service at the customer's home will be ineffective.

At the service center, the coil is washed using a special installation. The chemical reagent is supplied under pressure inside the radiator. You can clean a Bosch flow-through gas boiler at home, if the internal cavity of the heat exchanger is slightly clogged, using any chemical reagents designed to remove scale.

Available remedies can come to the rescue: lemon juice, acetic acid.

Why "GazMontazh"

Affordable prices. The cost of our services for connecting Bosch speakers can be viewed on the website; it is also called by the manager over the phone when placing an order, and it does not change when the specialist arrives at your home.

Algorithm for setting up a gas water heater

Setting up a geyser, especially for the first time, is a rather painstaking but short process. Moreover, next time it will be much easier and faster to repeat the actions.

You need to set up a gas water heater as follows:

1. Firstly, it is necessary to reduce the water supply to the minimum, which is specified in the instructions for each column, for example, 6, 8 or 10 l/min. It should not be forgotten that you only need to open the hot water tap. After setting the indicators, the tap is turned off.
2. The second stage is setting the minimum throttle position. This will help you make precise settings specifically for the characteristics of this device. At this stage, the electrics are connected. Modern electronic models have a display and make adjustments automatically.
3. Now the column can be launched. Open the hot tap and measure the outlet water temperature. It should be higher on average by 25°C compared to the inlet temperature. If the difference is significantly less or greater, the gas handle or toggle switch should be adjusted to the state at which the indicated result is obtained.
4. The handle (toggle switch) for supplying hot water will also help to regulate the temperature. If its flow is increased, the outlet temperature will decrease. If the water pressure is reduced, it will become warmer.

When setting up, it is important to remember that the water cannot heat up instantly, so there is no need to rush. After each change of parameters, you should wait and allow time for the liquid to heat up or cool down.

Note! Experts do not recommend heating water above 55°C. This is due to the fact that if the temperature is too high, scale will begin to form faster.

Subsequently, it will clog the heat exchanger and device components.

To minimize wear on the water heater, it is recommended to close the hot water tap gradually. This will prevent you from “overloading” the device’s heat exchanger.

The gas water heater clicks - how to solve the problem

Reasons why a geyser does not heat water

Design and malfunctions of a gas water heater with piezo ignition

How to remove and clean the igniter?

Evidence of contamination of the ignition tube: the igniter flame spontaneously extinguishes; a weak tongue of flame rises up without moving towards the burner due to insufficient gas pressure (if the pressure of the main or bottled gas has weakened, then the igniter has nothing to do with it).

Please note: before you start cleaning a clogged igniter of a Bosch geyser, be sure to double-check that the gas tap of the device is closed!

Tools needed: flat-head (minus) screwdriver or thin pliers with curved “lips” (platypus). The ignition tube should be removed carefully, without pushing through the heat exchanger jacket.

The procedure for dismantling the water heater igniter:

• Top end. You need to pull up the bracket that holds the flared edge of the pilot tube at the end of the burner. Unclench the bracket slightly, then move it upward with duckbill pliers or pry it with a screwdriver until it is completely removed;
• Bottom end. It is necessary to press out the edges of the bracket securing the igniter;
• Removing the igniter. Having freed the ends of the tube, all that remains is to lift it up and remove it in a “pull” motion.

To clean the cavity of the ignition tube, you will need a piece of not too stiff wire, on which a piece of lint-free cloth (for example, a microfiber cloth) is clamped. We stretch a homemade “brush” inside the tube, then lightly tap it and blow through it.

It is also necessary to clean the tungsten spring located on the underside of the tube. This will ensure quick ignition from the piezoelectric element. Finally, it is necessary to clean the nozzle at the lower connection point of the ignition tube and the electrode located in front of the upper outlet of the tube from carbon deposits. They should be wiped with microfiber or other lint-free cloth.

Installation of a cleaned igniter into the column is carried out in the reverse order of dismantling. If cleaning is done effectively, the flame from the lit pilot tube will be almost invisible.

Other device problems

In addition to error codes, there are other malfunctions that are also typical for the Neva Transit gas water heater:

1. The appliance is too noisy. In this case, you should start turning the water regulator and reduce the pressure.
2. The gaskets “stick out” in the pipe connection areas. The problem is solved by replacing the element.
3. The display has stopped working. The problem lies in faulty contacts, a broken display and a faulty temperature sensor. The solution is to replace the parts and the display itself.
4. The device stopped lighting up. This problem is also typical for the Zanussi gas water heater. The malfunction lies in membrane stretching, overheating and a broken device element. Solved by replacing the part with a new one.

When repairing with your own hands, it will take a long time to study the repair material and actually set up the gas water heater. The result the first time may not be the same as in the repair instructions in the literature and may even be disastrous. The best option would be to entrust the matter to professionals.

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Many users encounter a problem: the column does not produce the expected results. This happens due to incorrect equipment settings. Manufacturers found a way out and released devices with automatic adjustment. We will tell you how to set up a gas water heater - regular and automatic.

Conclusions and useful video on the topic

Step-by-step dismantling of a Bosch water heater to clean the heat exchange unit and main burner:

Video material about cleaning the dusty main burner of a column from a home craftsman:

The gas water heater should be cleaned of soot and scale every two years of operation, otherwise the performance of the device will sharply weaken. If the warranty period specified by the manufacturer has expired, it is not necessary to contact the gas service with which the equipment maintenance agreement has been concluded.

It happens that there is no particular need to involve gas workers in the work of removing scale and soot. In this case, you only need men's hands, free time and a simple tool. Follow the instructions described above and you will succeed!

Would you like to talk about how you clean your own gas water heater? It is possible that the intricacies of the cleaning process you know will be useful to site visitors. Please leave comments in the block below, post photos and ask questions about the topic of the article.

Those who recently purchased the speaker are faced with some problems. They appear when the adjustment is incorrect during installation of the water heater. But companies found a way out and created devices with automatic adjustment. Today we will talk about how to adjust the gas water heater.

Adjusting the water temperature

Open the mixer and evaluate the heating temperature of the water flow. It should be 25 degrees higher than at the entrance. Keep in mind that the gas boiler does not heat the water immediately, you need to wait a little. Use the gas lever to adjust.

Experts do not recommend heating above 55 degrees. This negatively affects the operation of the device, since scale is actively deposited.

The settings take some time, so you don’t need to wait for the results right away. After each stage, you need to drain the water and let it heat up again to check the accuracy of the indicators. Operation may be hampered by reduced pressure in the system.

If the device runs on liquefied gas and there are problems with pressure, do this:

• Remove the device casing.
• Loosen the locking bolt and measure the readings with a pressure gauge.
• Remove the seal from the adjustment screw.
• Start the boiler.
• Set the maximum values, unscrew all hot water faucets.
• Set the required pressure.

Some models are equipped with an additional “Winter-Summer” mode. The heating power of the water in the column depends on the temperature of the inlet flow. In winter, the regulator is set to the “maximum” position - maximum heating. In summer, the inlet temperature is higher, so the value is “minimum”. This saves resources.

Problems with poor water pressure can be corrected by checking. If the equipment has already been in operation and you decide to reconfigure it, but there is no pressure:

• Check the rubber membrane. Its operation depends on the pressure in the line. The membrane bends and the gas valve is activated. When it wears out or becomes deformed, the gas supply does not start and the burner does not light up. Replace the membrane.
• Mesh filter. Located at the entrance to the water reducer (block). It becomes clogged with small debris from the water supply, so the pressure may decrease. Clean the part.

How to adjust the flame of a gas water heater

Another way to set up a gas water heater is to adjust the flame. On the body of semi-automatic and automatic machines there is a handle designed to adjust the gas. With its help, the supply of blue fuel increases and decreases. The power of the device is directly related to this part.

As soon as the flame becomes larger, the gas consumption will be higher and the water will heat up better. Professionals advise changing the gas transmission speed to properly set the burner. As soon as the burning intensity is selected, the knob for changing the water pressure is applied. In order to change the combustion temperature, it is worth changing the “Winter-Summer” mode.

Adjusting the igniter of the gas water heater will help reduce gas costs in semi-automatic machines. The wick is adjusted using the bolt on the pilot burner. You should be careful when making settings. If you reduce the flame of the gas water heater's igniter too much, the device will stop working. If the flame increases excessively, excess gas consumption will occur.

Quality assurance

The gas water heater has certificates of compliance with the requirements of GOST regulatory documents.

Geyser Electrolux GWH 265 ERN NANO PLUS - a geyser with electronic ignition of the burner is easy to use. The burner ignites automatically when the hot water tap is turned on, then the heating power and water temperature are regulated using ergonomic knobs on the front control panel. The presence of flame is monitored by an ionization control unit. The productivity of the NanoPlus geyser is 10 liters per minute.

In this model, the gas burner is made of high quality stainless steel. In the model Geyser Electrolux GWH 265 ERN NANO PLUS, the chimney diameter is 110 mm, which makes it possible to connect to almost any exhaust system.

Heat exchanger

In geysers, the Electrolux GWH 265 ERN NANO PLUS geyser heat exchanger is made of high quality oxygen-free copper using OXYGEN FREE technology, which maximizes its resistance to oxidation and high temperatures during operation and does not require the application of any additional protective layers.

The heat exchanger in NanoPlus geysers does not contain lead and tin, which indicates its safety for human health and the environment, as well as high reliability and durability.

Digital display

On the control panel of the geyser Electrolux GWH 265 ERN NANO PLUS geyser there is a modern digital LCD display with intelligent control. The display shows the water heating temperature, as well as various functions of the column: indication of the presence of a flame on the burner and the presence of water circulation in the heat exchanger, indication of the charge level of the batteries for ignition. If the charge level is insufficient for ignition, the battery icon will flash, indicating that it needs to be replaced.

Multi-level security system

The first level of the security system is a traction sensor. It is triggered when there is no draft in the chimney or reverse draft appears, turning off the gas supply. The second level of the security system - a protective thermostat protects the column from overheating. The third level of safety - a hydraulic safety valve is designed to control the circulation of water in the heat exchanger. This protects the geyser from overheating. The fourth level - flame ionization control controls the presence or absence of a flame on the burner. The intelligent control system controls the operation of all sensors. If any malfunctions or errors occur in the operation of the column, an error code is displayed on the LCD display, which is very convenient when servicing and operating the device.

Operation at low gas pressure

Electrolux geysers are designed taking into account the peculiarities of work in Russia, Ukraine, Kazakhstan, Belarus and other countries of the post-Soviet space, where the pressure of gas and water in the mains is sometimes quite low. The minimum water pressure to turn on is 0.15 bar, gas pressure is 13 mbar.

2 year warranty

Preparatory work

Despite the fact that each column “Selena”, “Vector”, “Bosch”, “Neva” comes with instructions indicating the settings, not all users understand them. One mistake at the beginning - and the technology does not function as it should.

Work begins with adjusting the water. If you do not do this right away, then all settings will be inaccurate. The flow should be minimal. The nominal values ​​are indicated in the documents, but they are general: 6, 10, 12 liters.

How to set the hot water regulator:

• Open the hot mixer to full power. When connecting to several intake points, only one valve can be unscrewed.
• Using the water switch, set the desired value.
• Turn on the tap.

Follow the recommendations of experts:

• Wait until the pressure in the line decreases, but the column will still turn on.
• Turn the water toggle knob to the maximum position.
• Turn the gas regulator to the minimum mark until the temperature suits you.

To finish cooking, you need to adjust the gas supply. Check the data sheet again to find out the minimum value for your model.

• Turn the toggle switch to minimum.
• Open the gas valve. In the Ariston and Electrolux models, this must be done after connecting to the network. In Oasis, Dion, Bosch, Junkers heaters - after installing batteries.
• Open the hot valve and the column will start working.

How to remove the casing of a Bosch water heater?

The decorative and protective casing of the speaker is easy to remove:

• you need to unfasten the round adjustment knobs by pulling them towards you;
• move the rectangular gas adjustment knob to the body cavity (the “ignition” position). Please note that not every Bosch water heater model has such a handle;
• Using a Phillips screwdriver, unscrew the two self-tapping screws securing the casing to the column frame. They are located at the bottom, on the sides of the device.

All that remains is to carefully push the lower part of the water heater casing towards you with both hands. Then lift up, remove completely and set aside. Now you can visually assess the contamination of the device and determine the scale of cleaning work.

Setting details

These devices have only one geyser temperature regulator. Thanks to it, the heating temperature and power are adjusted. The self-diagnosis system evaluates the operation of the components when turned on. If there are problems, the red light comes on and the device is blocked from starting. Then it is necessary to adjust the water pressure.

Then you need:

• Remove batteries from the compartment;
• Turn off the microswitch;
• Provide a source of electricity;
• Turn on the hot tap and turn on the microswitch;
• The pressure on the burner should be maximum;
• After saving the settings, the orange lamp will turn on.

In other columns, the water temperature is adjusted by turning the toggle switch and controlling the strength of the water flow.

Unfortunately, it is impossible to easily set the settings according to the instructions. Each system has different meanings. If you have difficulties setting up the gas water heater temperature regulator with your own hands, you should turn to professionals.

Preparing to set up a water heater

Although there are instructions for the Bosch, Selena and Neva gas water heaters on how to set them up correctly, not everyone understands how to do this. Having made a mistake at the very beginning, the device begins to work not as it should. You should start by regulating the water supply.

First of all, adjust the water regulation. If you do it at the last moment, then all the settings will be incorrect. The flow must be the smallest . The values ​​can be found in the documentation, they are usually 6, 10 and 12 liters.

The main thing is that there is only one tap for work.