Geyser Astra: device, technical characteristics, operating instructions

agzp.com.ua

Sometimes you really want something “native”, “homemade”. For example, choose a normal boiler: so that it does not make noise, constantly heats water and does not complain about breakdowns. Just for this occasion, we have an option - take a closer look at the design of Astra geysers. We will talk about their advantages and operation in our article. Make yourself comfortable, we're starting!

Peculiarities

JSC PKO "Heat Exchanger", which produces geysers "Astra", has existed for more than 50 years.
Perhaps our grandparents also used his products. True, then this company was called differently. The Astra column is designed to work with hot water supply. Only gas is used as fuel.

The design of such a column is quite simple and includes several components. The main part – a rectangular body – is mounted on the wall. On the front panel there are windows for ignition and combustion control, a power button, and gas supply adjustment knobs. At the bottom there are gas, hot and cold water supply fittings, and at the top there is a chimney outlet.

All main components are located inside the case and secured to the rear panel. It also has mounting holes. The combustion chamber is made of high-quality refractory material with a long service life. Laconic execution is an advantage in the model market and provides the manufacturer with high demand for its products.

The principle of operation is as follows: in order for gas to enter the gas block and the igniter, you must turn the ignition burner knob to the left and turn on the device by pressing the button - the burner will turn on sequentially. The hot water outlet temperature is set by the position of the control knobs. By turning from right to left, the gas supply increases, thereby increasing the water temperature, and from left to right, on the contrary, it decreases.

The technical characteristics of Astra speakers make it easy to compete with other manufacturers. The main advantage is the power of the device: for some models it is equal to or even exceeds 20 kW. A large combustion chamber and relatively low gas consumption distinguishes this brand.

Of course, each model has its own nuances in characteristics, but general values ​​can be derived. For example, the hot water supply is approximately 10-12 l/min, the outlet water temperature range is 35-60 degrees, the operating pressure range is 0.5-6 bar.

The manufacturer also thought about the safety of its products. If the burner goes out, the water supply will stop.

How to use?

The purchase has been made, and the connection has been made by employees of the relevant service. To turn on the column, first of all, you need to check the draft by applying a strip of paper (2-5 cm wide and 20 cm long) to the side holes on the body. If from a distance of 15 cm the paper is attracted to the holes, then everything is in order.

Then you need to open the taps - first the gas valve, then the water valve. After this, you need to act in accordance with the type of model. For devices with manual ignition, turn the pilot burner control knob to the left to the “Open” position. Then you need to light a match and bring it closer to the igniter located on the front panel of the device, while simultaneously pressing and holding the solenoid valve button.

The time you hold the button can be different and range from 3 to 60 seconds. You can set a specific press duration for your device experimentally.

After these manipulations, you should slowly open the hot water, turn the gas supply adjustment knob to the main burner, setting the desired position with a certain outlet temperature. If everything is done correctly, the main burner will light up.

For models with electronic ignition, the switching procedure is even simpler: you need to turn the gas and water supply taps in front of the device, and then simply turn on the hot water - the column will start itself.

Adjustment is made using two handles. The gas flow control knob affects the outlet temperature, and the water flow control knob changes the water flow accordingly.

To turn off a device with manual ignition, you must first move the handles of the main burner and then the ignition burner to the right to the “Closed” position. Then make sure that both burners go out. Now you can close the hot water tap and, finally, the general gas pipeline tap.

For automatic models, just close the taps.

From reviews of Astra geysers, we can conclude that the units are quite reliable, easy to operate and repair. Breakdowns are rare, and spare parts are easy to find on the market. The ease of operation is very popular with the older generation, who are not chasing newfangled functionality. And the price looks very attractive compared to foreign analogues. At the same time, the modest but attractive design allows this device to fit into any interior.

Technical characteristics of the column brand VPG 8910-08.02

In order to make the right choice, you need to consider several models. Among others, the VPG 8910-08.02 variant is presented on the market, the power of which reaches 18 kW. The design has an open combustion chamber and manual ignition. The productivity of this model is slightly less and is 10 l/min. The temperature of the supplied water remains at the same level, but the fuel consumption will be slightly lower and amount to 2 m 3 / h. The minimum and maximum operating water pressure remains the same. The connection is made with the same parameters. The diameter of the chimney remains the same. The design body has identical parameters.

If your water heater breaks down

Before you begin repairing gas water heaters, regardless of the type of breakdown, you need to shut off the gas supply. The device itself does not need to be removed - all structural parts are accessible without dismantling. But the “facade” - the front cover of the heater, needs to be removed by unscrewing the side bolts with a screwdriver. First you need to inspect the heat exchanger - it is located behind the electrode, fixed with four bolts. It is not recommended to unscrew the heat exchanger.

When repairing device components, the main thing is not to touch the fitting - this element is needed to measure water pressure. If you accidentally damage the fitting, you will need to replace the head. The main malfunctions of gas water heaters:

• Contacts are dirty. Contacts that have become unusable must be replaced with new ones.
• The heat exchanger is damaged. Correcting the situation is replacement.

Repair of Astra brand geyser

Repair of the Astra geyser begins with shutting off the gas. The column does not need to be removed. The front part can be dismantled using a screwdriver, but first you need to unscrew the bolts located on the sides. The first thing you need to check is the economizer; it is located behind the electrode. Removing the latter will be quite difficult. It is fixed with 4 bolts. You should not touch the heat exchanger.

When you repair individual components, it is important not to touch the fitting; it is used to measure pressure. If this part is damaged, you will have to replace the head

In order to remove the economizer, you only need to unscrew the two side bolts. The consumer may well carry out the repairs with his own hands. The Astra geyser has contacts in its design that often become dirty. If they become unusable, they need to be replaced. If the economizer does not work after replacement, then it will also have to be changed. These faults are among the main ones for Astra speakers.

If you are faced with a problem when the Astra gas water heater does not light up, this may indicate a lack of draft in the ventilation passage. You can check the traction very simply. The gas water heater is turned off, and a burning match should be brought to the chimney outlet. If the flame is carried into the chimney, then everything is in order - you can connect the column. Otherwise, the chimney should be cleaned. However, it is better to entrust this matter to a special master.

The Astra geyser, the malfunctions of which you should consider when operating this equipment, sometimes goes out immediately after ignition. In this case, you should adjust the supply of cold water to the column. Do not try to dilute hot and cold water, as this may cause the flame to die out.

Does water pressure affect the performance of the column?

The reason why the equipment does not ignite may be low water pressure in the supply water supply. This is easy to check; you just need to open the cold water tap at the sink. If you see that the pressure is weak, then this is the reason. But if the pressure is excellent, then the problem of the malfunction lies in the water unit of the gas device itself. Most likely, the filters are clogged or the special membrane is deformed. In some cases, the hot water supply tap becomes clogged and becomes covered with scale from the inside.

In very rare cases, the cause of low pressure is a deep cleaning filter, which is installed additionally. How to fix the problem? If the cold water supply pressure is very weak in the general water supply system, you need to call the utility services to find out why this is happening. If the column does not light up due to the fact that the filters are clogged, then they should be removed and washed using special means.

If the filters are heavily soiled, they need to be replaced, as cleaning them is no longer useful. If the hot water pipes are clogged, you need to call a technician who can clean them; you do not need to do this work yourself. If the membrane is deformed, there is no need to try to straighten it; you need to purchase a new one and install it. If the column becomes clogged with combustion products and soot, turn it off, then remove the casing and clean its components from traces of soot.

The column refuses to light up when turned on or goes out immediately, due to the fact that the supply of cold or hot water is not adjusted. In this case, there is no need to try to dilute the hot water by increasing the flow of cold water, as this will lead to a gradual attenuation of the flame and the column turning off. Such incorrect actions lead to a reduction in the service life of the device. It is also necessary to correctly adjust all the taps during installation; if you cannot do this yourself, then it is better to call a specialist.

Checking traction

It is also worth noting that modern versions of atmospheric speakers often already have automatic safety systems (most Astra, Bosh and Vaillant models). They prevent the column from starting if there is no traction, and will also turn it off if it disappears during operation.

However, you should not rely on the fact that automation will give you a 100% guarantee of safety. Therefore, it is necessary to be able to check traction yourself. For this purpose, professionals use special measuring devices that evaluate the presence and strength of air movement (draft).

But an ordinary person is unlikely to have such devices at home. Therefore, the usual “old-fashioned” methods are used:

1. The first method involves removing the front part of the device and, taking a small strip of paper, bringing it to the chimney. If there is traction, then the paper will be pulled inward a little.
2. The second option is simpler and does not require any manipulations with the device itself. It will be enough to light a match and then bring it directly to the viewing window, which is located on the front panel. In the case when the flame is drawn into it, this will mean the presence of draft.

Good to know:

quite common situations when the chimney works properly, but there is no draft. This may occur due to the fact that there is no air flow into the room, which is why there is no draft (air movement). To check this, you can close the windows and doors during normal operation of the chimney and check the draft.

Bosch WR 10-2P

One of the most reliable geysers in the budget segment Country: Germany Average price: 8,900 rubles.
Rating (2019): 4.5 The reliable Bosch WR 10-2P gas water heater takes second place in the rating among the best models in the budget segment. With a power of 17.4 kW, this device has a productivity of up to 10 l/min, while heating water up to 60 °C. The temperature is controlled via convenient mechanical rotary switches. You can find two versions of this dispenser on sale - P23 for natural gas from a gas pipeline and P31 for liquefied gas from a cylinder. Reliable protection against leaks is achieved due to an increased operating pressure range - from 0.1 to 12 atm. For the normal functioning of the device, an additional air duct is required, since an open-type combustion chamber is installed here.

The advantages of this Bosch water heater in customer reviews include ease of operation, small dimensions and quiet operation. In addition, installing such a device will not be a problem—it is not necessary to invite a specialist. The gas and water supply is carried out from below, and the column itself is hung vertically on the wall.

A common question from owners of apartments and private houses: which is better, a gas water heater or an electric boiler? Each type of water heater has its own pros and cons, which the following table will tell you about:

Main characteristics

Speaker manufacturer. This enterprise has been producing high-tech products for 60 years. The plant produces dispensers that use only natural gas as fuel, and the combustion products are released through a chimney.

Modern models of geyser are economical, have high efficiency, and do not harm the environment. The devices are more profitable than boilers for heating water, as their productivity is higher. They don't use too much fuel, so it doesn't cost much to the consumer. The average cost of the device is 9,000 rubles.

Astra geysers help solve the issue of hot water supply. Even the low power model can heat enough water for the whole family. More advanced devices, which have a capacity of up to 12 liters per minute, are capable of simultaneously servicing two water connection points.

Despite the fact that this water heater is a budget option, it contains elements that ensure complete safety. For example, in some cases the device turns off automatically.

This is possible if:

• No traction;
• The water supply has stopped;
• There is no flame.

Good technical characteristics and a wide range of products make the water heaters an ideal option for providing homes with hot water.

User reviews

Roman: “I had an old gas water heater that constantly overheated the water and supplied boiling water instead of warm water. I decided to replace the water heater, the seller recommended Astra, I bought it and have no regrets. It has been working in ideal mode for more than a year, no shortcomings have been noticed. And the old water heater had to be sold as scrap metal.”

Vladislav: “I bought myself a water heater “VPG 8910-15”, it has been working for more than 5 years, there are no complaints. I am pleased with the power - there is enough water for both the bathroom and the kitchen. An excellent solution for a private home, for a summer house - the unit is too powerful, it’s better to find a cheaper one.”

Konstantin: “My Astra heater has been working for 7 years; there were a couple of small malfunctions, which I fixed by cleaning the heater and chimney. Now everything works great, I’m happy with the device.”

Attention! offers an excellent line of gas water heaters. A wide selection of models allows you to choose the right boiler individually for each case.

The cost of the devices is lower than their Western counterparts, but the quality of the produced HSVs is not inferior to European boilers from well-known companies. Easy to manage and operate, simple repairs in case of problems, reasonable price - Astra speakers are closer to the people than similar boilers.

Specifics

PKO Pipe Coil JSC, which produces Astra gas water heaters, has been around for more than fifty years. Perhaps our grandparents also used his products. True, then this company was called differently.

The Astra column is necessary for working with hot water supply. Only gas is used as fuel.

The design of such a column is very simple and includes several components. The main part – a rectangular body – is fixed to the wall. The front panel contains windows for ignition and combustion control, a power button, and gas supply adjustment knobs. At the bottom there are connecting elements with threads on both sides of the gas supply, cold and hot water, and on top there is a section of the chimney pipe.

All key components are located in the middle of the case and secured to the panel located at the rear. It also includes holes for fastening. The firebox is made of good fire-resistant material that has a long service life. Ease of execution is considered an advantage in the model market and provides the manufacturer with great demand for its own products.

The working principle is as follows: in order for gas to enter the gas block and the ignition wick, you need to turn the ignition burner knob to the left and turn on the device by pressing the button - the burner will methodically turn on. The hot water outlet temperature is set by the position of the control knobs. By turning from the right side to the left, the gas supply increases, thus increasing the water temperature, and from left to right, on the contrary, it decreases.

According to functionality, the components of the column are figuratively divided into water and gas parts. On the market you can choose repair kits and spare parts for any unit separately, as well as the entire unit.

The technical properties of Astra speakers make it very easy to compete with other manufacturers. The main advantage is the power of the device: for certain models it is equal to or even exceeds 20 kW. A large firebox and relatively low gas consumption distinguishes this brand perfectly.

Naturally, each model has its own small details in the characteristics, but general values ​​can be derived. For example, the hot water supply is approximately 10-12 l/min, the outlet water temperature range is 35-60 degrees, the operating pressure range is 0.5-6 bar.

The manufacturer also thought about the safety of its own products. If the burner goes out, the water supply will end.

Each model comes with a passport and instruction manual, which outlines operating rules and non-hazardous work in more detail, and also includes an important diagram of the device.

Now on the market there are a lot of gas-powered speakers with an original color palette. Consumers sometimes make the mistake of giving preference to color over technical specifications. The Astra gas water heater does not strive to distinguish itself due to its appearance, but focuses on its ability to work and has its own range of models.

Model 8910-00.02

has high power - up to 21 kW and an operating capacity of 12 l/min. Dimensions – 700x372x230 mm. The chimney has a diameter of 120 mm. Gas consumption per hour is 2.3 cubic meters. m. Ignition occurs manually.

Open type firebox. It is not difficult to study cravings. The gas pipe for connection has a cross-section of 3?4 inches, the water pipes - 1?2 inches. The weight of the device is 15 kg.

Model 8910-08.02

has slightly low power (up to 18 kW) and productivity (10 l/min). However, fuel consumption is also lower - 2 cubic meters. m/h. The weight of the unit is 14.7 kg. Otherwise, the device is very similar to the previous model. Ignition is also done manually

Model 8910-15

It has one significant difference - this system has electronic ignition of the burner, which is very comfortable. Now there is no need to worry about the availability of matches.

The power of the unit can reach 20 kW, productivity – 10 liters of hot water per minute. Gas consumption is 2 cubic meters. m/h. Speaker weight – 13.9 kg. The diameter of the chimney is 135 mm.

Model 8910-16

It is also equipped with an electronic automatic burner ignition control system. This automatic device is a record holder for power (up to 24 kW). The device heats water at a speed of 12 liters per minute. Gas consumption – 2.3 cubic meters. m/hour. The weight of the device is 14.7 kg.

It should be noted that spare parts for Astra speakers can be easily found at inexpensive prices.

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Main characteristics

Speaker manufacturer. This enterprise has been producing high-tech products for 60 years. The plant produces dispensers that use only natural gas as fuel, and the combustion products are released through a chimney.

Modern models of geyser are economical, have high efficiency, and do not harm the environment. The devices are more profitable than boilers for heating water, as their productivity is higher. They don't use too much fuel, so it doesn't cost much to the consumer. The average cost of the device is 9,000 rubles.

Astra geysers help solve the issue of hot water supply. Even the low power model can heat enough water for the whole family. More advanced devices, which have a capacity of up to 12 liters per minute, are capable of simultaneously servicing two water connection points.

Despite the fact that this water heater is a budget option, it contains elements that ensure complete safety. For example, in some cases the device turns off automatically.

This is possible if:

• No traction;
• The water supply has stopped;
• There is no flame.

Good technical characteristics and a wide range of products make the water heaters an ideal option for providing homes with hot water.

Care Tips

The Astra geyser will work for a long time and without failure if it is handled correctly.

Dust on external surfaces should be regularly wiped with a damp cloth soaked in soapy water. We advise you not to use chemicals - they can damage the coating.

You should also not allow water to heat above 60 degrees - this will lead to increased scale formation. You should also not dilute very hot water with a mixer - overheating and premature wear of the heat exchanger is possible.

Removing scale from heat exchanger tubes is possible at home. To do this, you need to unscrew the heat exchanger and immerse it in warm water, pour a chemical into the tube and wait a few minutes. Then you need to put a hose of a suitable diameter on the tube and rinse it with clean water.

You should periodically carry out maintenance of the device by calling specialists. It is important to clean the water and gas filters, burner nozzles and heat exchanger from combustion products.

The complex of these measures will increase the shelf life of the column and will delight the owner with uninterrupted operation for many years.

Repair and service

The main malfunctions of the VPG-23 column include:

1. The main burner does not light up:

• low water pressure;
• deformation or rupture of the membrane - replace the membrane;
• Venturi nozzle is clogged - clean the nozzle;
• the rod has come off the plate - replace the rod with the plate;
• misalignment of the gas part in relation to the water part - align with three screws;
• the rod does not move well in the oil seal - lubricate the rod and check the tightness of the nut. If you loosen the nut more than necessary, water may leak from under the seal.

2. When the water intake stops, the main burner does not go out:

• Contaminants have gotten under the safety valve - clean the seat and valve;
• the cone spring is weakened - replace the spring;
• the rod does not move well in the oil seal - lubricate the rod and check the tightness of the nut. When the pilot flame is present, the solenoid valve is not held open:

3. Violation of the electrical circuit between the thermocouple and the electromagnet (break or short circuit). The following reasons are possible:

• lack of contact between the thermocouple and electromagnet terminals - clean the terminals with sandpaper;
• violation of the insulation of the copper wire of the thermocouple and short circuit it with the tube - in this case, the thermocouple is replaced;
• violation of the insulation of the turns of the electromagnet coil, shorting them to each other or to the core - in this case the valve is replaced;
• disruption of the magnetic circuit between the armature and the core of the electromagnet coil due to oxidation, dirt, grease film, etc. It is necessary to clean the surfaces using a piece of rough cloth. Cleaning surfaces with files, sandpaper, etc. is not allowed.

4. Insufficient heating of the thermocouple:

• the working end of the thermocouple is smoked - remove soot from the hot junction of the thermocouple;
• the igniter nozzle is clogged - clean the nozzle;
• The thermocouple is incorrectly installed relative to the igniter - install the thermocouple relative to the igniter so as to ensure sufficient heating.

Despite the fact that today housing and communal services networks are being modernized everywhere, the quality of the services they provide remains at a low level. This is especially true for hot water supply. To solve this problem once and for all, you should purchase a gas water heater. However, you first need to decide which model is best for you.

Modern manufacturers offer the mentioned devices in a wide range. They have certain operational and technical characteristics. Columns can be classified into flow-through and storage. As for the former, they are smaller in size, which allows them to be installed even in a small room. Storage gas water heaters can hold from 50 to 500 liters of water.

The design of the container has effective thermal insulation, which allows you to maintain a high water temperature for a long time, which helps save energy resources

If you still can’t decide which geyser to choose, then you can pay attention to equipment under the Astra brand, which will be discussed below. Such devices are good not only because they are manufactured in Russia, which means they have an acceptable cost, but also because they are maintainable

This indicates that in the event of a malfunction, you can figure it out yourself.

Most purchased models

Despite the widespread modernization of housing and communal services networks, they continue to provide low-quality services, especially in relation to hot water supply. Therefore, people themselves solve this problem with the help of geysers. But before buying, you should familiarize yourself with the models, read how to use them and study the main characteristics.

Manufacturers provide a large selection of devices. There are flow-through and storage products. Flow-through gas heaters are distinguished by the fact that they have compact dimensions, so they are suitable for installation in any room, and the latter can hold from 50 to 500 liters of water. The design has good thermal insulation, thereby maintaining the water temperature.

Fault prevention

To ensure that your water heater operates smoothly, follow these recommendations:

1. Set the temperature so that hot water does not have to be diluted with cold water. The higher the temperature, the faster the heat exchanger becomes overgrown with scale.
2. If the water is very hard, install a hydromagnetic system in front of the column, which allows you to remove calcium and magnesium salts without any consumables.
3. Regularly clean the chimney and internal elements of the water heater from soot.
4. It is better to connect an imported modern speaker equipped with an electronic controller to the mains through a stabilizer. Foreign-made electronics are demanding on the quality of power supply and, with strong voltage drops characteristic of our power grids, quickly fail. It is also highly undesirable to turn off such speakers at night.

One can only envy the owner of a gas water heater: he always has hot water.

Modern water heaters are very convenient, because just open the water tap and the device will turn on automatically, and even adjust the temperature as needed.

But sometimes events develop according to a less favorable scenario: the user, with increasing irritation, tries an icy stream of water with his hand, but the long-awaited sound that the burner flares up cannot be heard.

You will have to postpone hygiene procedures and try to understand why the gas water heater does not light up. This article will help you find and eliminate the causes of problems.

A gas instantaneous water heater will operate successfully only if all its subsystems are in proper condition. Here is their list:

1. Water circuit:
   This is simply a specially configured pipe (heat exchanger) through which water flows. The main condition for this component is sufficient bandwidth.
2. Gas burner:
   will only work if the valve on the gas supply line is open.
3. Ignition system:
   this is a device that ignites the gas coming from the burner at the right moment. If it malfunctions, the column, of course, will not be able to turn on. Some ignition systems have a pilot burner (pilot).
4. Smoke removal system:
   there should be no insurmountable obstacles on the path of combustion products from the burner itself to the atmosphere. The main part of this system is not a component of the column - it is a vertical or horizontal chimney facing the street.
5. Automation:
   this system includes a whole set of devices and sensors, and they all control the operation of the gas valve.

Automation can be mechanical...:

• a membrane installed in the water circuit and connected to the gas valve. Reacts to changes in water pressure;
• bimetallic plate. If the pilot burner suddenly goes out, the plate will cool down and cut off the gas supply.

... and electronic:

• draft sensor: blocks the gas supply if there is a danger of combustion products entering the room;
• flame sensor installed in columns without a pilot burner: triggered when the main burner goes out;
• overheat sensor.

Disturbances in the operation of any of the listed systems manifest themselves as follows:

• the burner does not light at all;
• the flame flares up, but immediately goes out (the gas water heater lights up and goes out);
• The igniter cannot be lit.

Let us consider in more detail the reasons causing such phenomena.

Gas equipment is a high-risk device, therefore, according to the regulations, it is carried out by the gas service. See our website for basic installation requirements.

Let's consider the operating principle of a pressure switch for a hydraulic accumulator. We will also look at the adjustment procedure.

Power, ignition system, security system are important criteria that need to be taken into account when choosing a gas water heater. This topic provides a detailed overview of the choice of gas equipment.

Problems with ignition

Ignition system for a gas water heater

Depending on the ignition systems, problems may include the following:

• If you have automatic electronic ignition from batteries, then the reason that the column does not light up (why the Astra gas water heater does not light up:) may be the discharge of the batteries.
  These are Bosch, Junkers and Neckar speakers with the letter “B” in the marking, Beretta with the letter “i”, Electrolux GWH 265 ERN, Neva 4510, Neva 4511, Oasis B-12W, Lemax Alpha 20m, Astra 8910-15. The battery charge may be visible on the display, and a special light on the front side of the case may also begin to blink. You should buy new R-size alkaloid batteries. The compartment is usually located in the lower right corner. (If the Lemax gas water heater does not light up, read).
• If you have a semi-automatic model, then the piezo ignition wires or the ignition nozzle may be clogged. These are Bosch and Junkers speakers marked “P”, Neva 4011, Neva Lux 5111, Electrolux GWH 350 RN. You need to remove the casing and clean the contacts from dust. A clogged nozzle results in insufficient wick flame to ignite the main burner. It can be cleaned with a thin wire.
  Also, the column may not light up if you hold the ignition button long enough. This should be done for 10-20 seconds.

• If your speaker is fully automatic and powered from the mains, it may not light up if there is no light in the house. These are Bosch models with the letter “E”, Beret with the symbol “S” in the marking. You need to check the availability of electricity in the house. Such models are equipped with additional elements, such as a power supply, which can also fail.
• If the water turbine column does not light up, then the reason is either a breakdown of the electronics or low water pressure.
  These are Bosch speakers with the "G" symbol. To check the water pressure, turn on the cold water tap. If the water flows strongly, then most likely some electronic element is not working. It is necessary to call specialists for repairs; the design of such water heaters is complex. If the pressure is weak, you need to call the utility services. You can see where to go below in the entrance.

Also, the column may not ignite due to the fact that the wick or ignition electrodes are in the wrong position. When exposed to high temperatures, column parts may become deformed. So, if the ignition electrodes drop below the burner, it will ignite poorly or not work at all. It is necessary to remove the casing from the column and change the position of the ignition elements.

Basic Rules

First of all, you need to remember that any devices that use gas have an increased level of danger.

The same applies to operation. Therefore, they are subject to handling rules similar to other household gas appliances.

So, if you suddenly smell gas:

1. You must immediately turn off the gas supply.
2. In order to quickly reduce the gas concentration, it is necessary to open the windows and ventilate the room.
3. Until the house/apartment is completely ventilated, you should not use any electrical appliances or light a fire.
4. After this you need to call the gas service.

It is important to know: installation and connection can only be carried out by certified specialists, in accordance with the design documentation approved by the gas industry. Most often, a user manual comes with the device itself. So, if you have an open type geyser installed, then:

So, if you have an open type geyser installed, then:

Most often, a user manual comes with the device itself. So, if you have an open type geyser installed, then:

1. You cannot light a fire in the burner or use it if there is backdraft in the chimney or if there is no backdraft at all.
2. Without first studying the instructions, it is prohibited to use the “scientific poke” method to turn on the device or ignite the gas.
3. There must be a constant flow of air in the room where such a unit was installed.
4. It is strictly forbidden to make any changes to the design of the gas water heater.
5. To prevent burns, you should avoid touching the parts of the front panel located next to the inspection slot, as well as the chimney elements.

Note:

It is better to turn on an open-type geyser at low heating power and not use mixers to produce hot water. The reason is that in the case of strong heating of the heat exchanger, an intensive process of salt deposition occurs.

What tools are needed?

To connect, configure, repair or service the device, a screwdriver alone is not enough; you need a set of tools:

• Adjustable wrench – 2 types.
• Pipe wrench.
• Gaskets – paronite and rubber.
• Screwdrivers – Phillips and flat head.
• 1-2 inch rubber hose and metal clamp.
• Special composition - remove scale.
• Bucket - drain water.

Peculiarities

JSC PKO "Heat Exchanger", which produces geysers "Astra", has existed for more than 50 years. Perhaps our grandparents also used his products. True, then this company was called differently.

The Astra column is designed to work with hot water supply. Only gas is used as fuel.

The design of such a column is quite simple and includes several components. The main part – a rectangular body – is mounted on the wall. On the front panel there are windows for ignition and combustion control, a power button, and gas supply adjustment knobs. At the bottom there are gas, hot and cold water supply fittings, and at the top there is a chimney outlet.

All main components are located inside the case and secured to the rear panel. It also has mounting holes. The combustion chamber is made of high-quality refractory material with a long service life. Laconic execution is an advantage in the model market and provides the manufacturer with high demand for its products.

The principle of operation is as follows: in order for gas to enter the gas block and the igniter, you must turn the ignition burner knob to the left and turn on the device by pressing the button - the burner will turn on sequentially. The hot water outlet temperature is set by the position of the control knobs. By turning from right to left, the gas supply increases, thereby increasing the water temperature, and from left to right, on the contrary, it decreases.

The technical characteristics of Astra speakers make it easy to compete with other manufacturers. The main advantage is the power of the device: for some models it is equal to or even exceeds 20 kW. A large combustion chamber and relatively low gas consumption distinguishes this brand.

Of course, each model has its own nuances in characteristics, but general values ​​can be derived. For example, the hot water supply is approximately 10-12 l/min, the outlet water temperature range is 35-60 degrees, the operating pressure range is 0.5-6 bar.

The manufacturer also thought about the safety of its products. If the burner goes out, the water supply will stop.

Currently, there are many geysers on the market with unusual colors. Consumers sometimes make the mistake of choosing color over technical characteristics. The Astra geyser does not strive to stand out due to its appearance, but relies on performance and has its own model range.

Model 8910-00.02

has high power - up to 21 kW and a productivity of 12 l/min. Dimensions – 700x372x230 mm. The chimney has a diameter of 120 mm. Gas consumption per hour is 2.3 cubic meters. m. Ignition occurs manually.

Open combustion chamber. It is easy to check the traction. The gas pipe for connection has a cross-section of 3⁄4 inches, the water pipes have a cross-section of 1⁄2 inches. The weight of the device is 15 kg.

Model 8910-08.02

has slightly lower power (up to 18 kW) and productivity (10 l/min). However, fuel consumption is also lower - 2 cubic meters. m/h. The weight of the unit is 14.7 kg. Otherwise, the device is very similar to the previous model. Ignition is also done manually

Model 8910-15

It has one fundamental difference - this system has electronic ignition of the burner, which is very convenient. Now there is no need to worry about having matches.

The power of the unit reaches 20 kW, productivity – 10 liters of hot water per minute. Gas consumption is 2 cubic meters. m/h. Speaker weight – 13.9 kg. The chimney diameter is 135 mm.

Model 8910-16

It is also equipped with an electronic automatic burner ignition system. This automatic device is a record holder for power (up to 24 kW). The unit heats water at a speed of 12 liters per minute. Gas consumption – 2.3 cubic meters. m/hour. The weight of the device is 14.7 kg.

It is worth noting that spare parts for Astra speakers can be easily found at reasonable prices.

The principle of operation of the technology

It is easier to remember the rules for using the device when you understand its structure. Regardless of the manufacturer, all geysers - Neva, Astra and others - have the same design. Only the location of the nodes can change.

Main nodes:

• Heat exchanger;
• Manifold for gas removal;
• Ignition unit;
• Burner;
• Water and gas fittings.

The column lining is made in the form of a metal casing; in some models it has an inspection window. The panel contains power and temperature regulators. Electronic control is complemented by a display.

Ignition block. Depending on the type of ignition, the product has a piezo ignition button or electronic battery switch.

• Connecting gas to an apartment after being disconnected for non-payment: procedure and legal subtleties

• Semi-automatic models. Piezo ignition can be triggered in different ways. In some cases, you need to hold the button and press the power control. The wick will burn until you turn off the device yourself. It is recommended to turn off the burner after use or when leaving home. This way you can save gas and extend the life of the device.
• Automatic equipment is more expensive, but is economical to operate. The wick does not burn continuously. The burner lights up only when the mixer is opened and goes out when closed. The electric charge is sent by batteries or a turbine. The batteries need to be changed periodically, and for normal operation of the turbine it is necessary to ensure stable pressure in the line.

Electronic devices may be equipped with a flame regulator. With reduced pressure, the modulator allows you to adjust the heating power so as to obtain the desired water heating temperature.

Manifold with outlet pipe. Located at the top. Pipes are connected to the pipe to discharge combustion products to the street. In devices with a closed combustion chamber, the manifold is located at the bottom and is equipped with a fan for forced removal of fumes. These are turbocharged models such as “Neva Turbo”, “Neva Lux 8224”, Bosch WTD.

Columns of the Astra and Oasis trademarks are produced only with an open combustion chamber.

The heat exchanger (radiator) is the main part in the water heater. Water flows through its tubes, which is heated by a burner. A high-quality radiator is made from pure copper. If impurities are added to the alloy, the assembly quickly burns out and leaks. Read the article “Heat exchanger for a geyser” to learn more about its design.

The burner is located under the radiator. A reliable housing must be made of steel. The part distributes the flame among the nozzles to uniformly heat the heat exchanger.

The gas unit may be located on top of the water unit (in older models) or to the right of it. Operation is regulated by turning the gas on and off.

The water block is located nearby, thanks to which fuel enters the system. When water is turned on, pressure is created in the system, causing the rubber membrane to bend. It pushes out a rod that turns the fuel valve.

An ignition device is located near the burner. The equipment is also equipped with protection sensors:

• The draft sensor monitors the presence of draft in the system;
• Ionization sensor - control of the presence of flame;
• Thermostat - temperature measurement, protection against overheating above 90 degrees.

When one of the sensors is triggered, the device turns off.

Electrical diagram of the device:

Typical breakdowns

It happens that in the devices in question the hydraulic unit breaks down. It is easy to dismantle, but difficult to put back in place. After disconnecting the hydraulic group, you must immediately check the valves - they must be securely fastened. If the valves move, or the tightness of the connection is compromised, they must be replaced immediately

When purchasing elements of a hydraulic unit, it is important to know the modification of the hydraulic unit

Also, the solenoid valve may break down in the main body. This is a small problem, but if it is not addressed in a timely manner, the consequences can be very serious. The valve may deteriorate due to clogging with combustion products - you need to urgently clean it of soot, otherwise there is a risk of explosion.

Electrolux GWH 10 High Performace

An improved model of a budget flow-through speaker from Electrolux. This water heater has a capacity of 10 liters per minute. The dispenser is equipped with a multi-level European protection system: against switching on without water, against overheating, and against operation in the absence of traction. To avoid an accident, the flame detection function and the chimney draft sensor turn off the gas supply. The heat exchanger is made of environmentally friendly material: oxygen-free copper, lead-free. Data from the built-in thermometer is reflected on the display. The column is ignited using an electric ignition, which is powered by a battery with a charge indicator. The water heater is easy to connect and has a convenient diameter for the chimney (110 mm).

Specifications:

• Type: flow-through;
• Installation type: vertical wall;
• Capacity: 10 l/min;
• Power: 20 kW;
• Water heating: +60°C;
• Inlet pressure: from 0.15 to 8 atm.;
• Control type: mechanical;
• Dimensions: 330×590×190 mm;
• Weight: 8.7 kg.

Extra options:

• open combustion chamber type;
• electric ignition;
• traction sensor (battery operated);
• gas control;
• power-on indication;
• protection against operation in the absence of traction;
• bottom eyeliner.

Pros:

• low price;
• increased level of security;
• temperature accuracy;
• there is a display;
• quick ignition at any water pressure;
• automation;
• heats water well;
• consumes little gas;
• steel body;
• stainless steel burner;
• 2 year warranty;
• appearance.

Minuses:

• temperature adjustments get lost when water pressure increases;
• work with clicks (noise)
• tight flow and temperature regulators.

Advantages

It’s not for nothing that gas water heaters are increasingly found both in city apartments and in rural houses. Such devices owe their popularity to their advantages, which include the following:

• First of all, it is possible to provide a house or apartment with hot water in almost unlimited quantities. Heating occurs a few seconds after opening the tap. Hot water will flow until the valve is closed.
• Small dimensions. Most often, a geyser is compared to a boiler. In the second case, installation will require a lot of free space. A gas heater can be easily placed even in a small kitchen. For this reason, the device is in great demand among owners of small apartments.
• The equipment can be repaired. This feature also sets the geyser apart from the boiler. In the latter case, if the container becomes rusty, the entire water heating device will need to be replaced.
• Don't forget about savings. The water heating device uses gas. This fuel is considered the cheapest in our country. The cost of obtaining one cubic meter of hot water will be several times less than in the case of a boiler or other electric heating device.

Modern geysers are equipped with additional devices. They extend service life and provide convenience and safety of use. If you carry out maintenance on time and follow all the manufacturer’s recommendations, the gas water heater will last many times longer than the boiler.