Gas water heaters Neva 3208 technical characteristics. What spare parts are there for Neva gas water heaters?

2016-11-04 Yulia Chizhikova

In this article we will look at the most common malfunctions of the Neva 3208 geyser, and describe in detail how to fix them.

Before starting repair work, you need to close the gas and water valves. Next, you need to remove the device casing; this can be done by pulling the gas control handle, which is secured to the rod with a spring. You will see two screws, the casing is fixed on them, unscrew them.

The column does not light up, reasons:

• No traction.

If you have metal-plastic windows installed, the flow of fresh air into the room is very small, and this is the reason for the malfunction (read about malfunctions in the Neva Lux 6011 and 6014 models). If there is no traction, the device overheats and the protective mechanism is triggered. To solve this problem, you need to open the window for ten minutes, then try turning it on again.

The ventilation duct is clogged with soot or a foreign object that has fallen into it. It’s very easy to check the blockage; place a piece of newsprint on the vent; if it doesn’t fall, the draft is good. In case of malfunction, you need to contact a specialist to clean the ventilation systems.

• Water unit malfunction.

To determine this failure, check the power of the cold water flow and the power of the water coming out of the column. If there is less from the column, then the problem is a clogged filter. To clean it, you need to unscrew the nut in the water supply unit, remove and clean the filter and calibration hole.

If the problem persists, check the rubber membrane in the assembly for cleanliness and serviceability. This can be done by opening the water block cover by unscrewing its screws. If it is dirty, clean it, and if traces of deformation are visually visible (in good condition it is flat), it needs to be replaced with a new one.

• Gas burner is dirty. You can only clean the soot that has accumulated inside the burner jets yourself; this cleaning is carried out using a metal brush. Upon completion of work, check the tightness with a soap solution.

• Perhaps you forgot to open the gas supply valve.

Geyser Neva 4510

They probably haven’t come up with anything worse than this column yet. How was it possible to release a model with such a flimsy heat exchanger? How could anyone even guess to make this thermally loaded unit from such a thin metal? A year has passed since the purchase, and leaks have already begun. It feels like this is an ordinary Chinese column in the Russian style - they didn’t even think of eliminating the obvious shortcomings. It makes a lot of noise, drips water, and switches off periodically. Recently it completely stopped turning on the first time, I have to turn off the water and turn it on again. Replacing the batteries didn't help, and cleaning everything that could be cleaned didn't help either. I decided to completely change the heat exchanger, found out the price, and decided to add a little more money and buy a normal column. Why such insanely expensive parts?

Doesn't heat water well

You can find out complete information on the selection, operation and maintenance of gas water heaters (instantaneous water heaters) from all manufacturers if you go.

In addition to specific information on the site, you can also study specific problems from other people on this topic who have already purchased a gas water heater or instantaneous water heater and thus avoid them. You will find a regularly updated list of such problems and their solutions.

The reason may be the formation of scale on the heat exchanger, which prevents the water from warming up and affects the pressure of the heated water coming out, and, as a result, gas consumption increases significantly. The cause of scale is hard water in the water supply and setting the heating temperature too high.

To remove scale, use products sold in the store; to save money, you can make them yourself, dilute 200 grams of citric acid in 900 ml of boiling water. Cleaning can be done using a special device. Its tubes are connected to the tubes of the heat exchanger, a prepared or purchased reagent flows through them and removes lime.

If it is not possible to purchase this device, you can do everything using a large tank filled 1/3 with water, immersing a heat exchanger in it, having first removed the water from it. Using a funnel, fill it completely with the prepared product and boil for 30 minutes. Then leave to cool for an hour and a half.

Rinse it under running water and secure it in its original place. If not all plaque has been removed, repeat the procedure for EVERY user question and answer to it, to avoid financial costs as a result of improper operation or repair of the flow-through heater. And here it doesn’t matter which manufacturer’s device is involved in the issue. All that matters is the unique situation as a result of which the issue arose, because as one good saying goes: “forewarned is forearmed.”

Domestic gas water heaters Neva are very popular among Russian consumers. This instantaneous water heater has proven itself on the positive side. This is evidenced by numerous recommendations and reviews from owners.

The following types of ignition are found in the model range of gas water heaters from this company.

The most popular are gas water heaters with electric ignition. They are easy to use and affordable.

Water heater power

This indicator is determined by the volume of warm water at the outlet. It is logical that the more liters of water the system produces, the more powerful it is.

All geysers can be divided into:

• small, their power is from 17 to 20 kW;
• medium, from 20 to 26 kW;
• large, from 26 to 28 kW.

Low-power equipment is suitable for only one water intake point. If you plan to install a water heater to supply several systems, then you should choose more powerful options. For example, for 2-3 water intake points, according to its technical characteristics,
5011 or 5014
geyser . These are systems with automatic piezo ignition, their power is 24 kW. Reliable equipment that can properly perform its assigned functions under long-term operating conditions.

Geyser Neva Lux 5011

Model range of geysers "Neva"

Currently, the line of instantaneous gas water heaters of the Neva brand, produced by (BaltGaz), includes several models, the most popular of which are summarized in the table below, which shows their main technical characteristics.

Data on water consumption are given at its temperature of +25˚С, and overall dimensions according to height × width × depth.

Model "Neva Transit"

Safety system

Any gas equipment must have a reliable safety system. The manufacturer of geysers Neva pays special attention to this. All modern models have several degrees of protection and are equipped with special sensors that monitor the operation of the water heater.

1. Safety valve
   . If the pressure in the system increases, it stops the supply of gas and water.
2. 
   or ionization sensor Gas control, which, if the burner goes out, stops the gas supply to it.
3. Thermal relay
   . Protects the device from overheating. In case of strong heating, it turns off the system.
4. Water pressure sensor
   . It activates and stops automatic gas supply when the water is turned on.
5. Temperature difference control sensor
   . If necessary, changes the water temperature when connecting and disconnecting several water intake points. This device is installed in geysers of updated models Neva Lux 4514, 4513.

Equipment catalog

In our recent past, the presence of a gas water heater or water heater in the house was a sign of wealth, almost like having a car. This meant that there was always hot water in the house! Now, of course, it is difficult to surprise anyone with hot water, but miracle machines, geysers, do not lose their relevance.

Hot, clean, inexpensive water at any time - these are the main advantages of a gas water heater. The NEVA-4511 P gas instantaneous water heater from a well-known Russian manufacturer was designed by engineers from St. Petersburg and manufactured at the Armavir Gas Equipment Plant.

Geyser Neva 4511 R is one of the most famous economy class models on the St. Petersburg market. This model is ignited by a piezo element, hence the letter P in the model name.

Neva 4511 R is very compact (width only 29 cm), lightweight, so finding a suitable place to install it will not be difficult even in a small apartment. The strict elegant style and color scheme (calm white or gray metallic) are very close in spirit to the residents of the Northern Capital and other regions of Russia.

Many residents of multi-storey buildings experience problems due to insufficient water pressure (pressure) in the apartment. This mainly happens when the water supply system is worn out or when your house is located away from the boiler room, on the upper floors.

The Neva 4511 R gas water heater is specially designed for Russian operating conditions; the water heater can operate even at low water pressure (from 0.15 atm). In addition, it is equipped with a safety system with an ionization flame control sensor. If for some reason the flame goes out, the system will immediately shut off the gas supply itself. Changing the flame height at different water flow rates is done manually using the water temperature control knob. This model is distinguished by the presence of a durable copper heat exchanger, it is slightly larger than that of the Neva 4510 M model, without tin and lead alloys, manufactured using innovative soldering technology in a protective environment.

With all the advantages of the Neva 4511 R gas water heater, it is necessary to note its low power - 21 kW, with a productivity of 11 liters/min. It lacks burner flame modulation, which is found in more advanced geysers. Therefore, it is most effective to use this column if you plan to use one water collection point at a time. If you need hot water to be in the bathroom and kitchen at the same time, then you need a higher power water heater, such as Neva 4513 M and Neva 5514. The Neva 4511 R gas water heater is one of the simplest and most inexpensive gas water heaters from the Neva series.

It is worth noting an important detail: most of the components and spare parts for Neva speakers are produced at the same plant and therefore are always in stock, you don’t have to wait for weeks and overpay several times, as for imported analogues. With us you can always find a full range of components and spare parts for Neva geysers at affordable prices.

Gas equipment is technically complex, therefore the installation and connection of any geyser should be carried out only by licensed specialists who are professionally involved in gas work. When purchasing a Neva 4511 R gas water heater, our specialists will be able to install it quickly, efficiently and for a reasonable price.

Buy with this product

Flexible water line 20 cm i/v TR

150 rub.

Flexible bellows connection for gas 30 cm in/n Kensudo

180 rub.

Features of domestic geysers

Geysers of the domestic Neva brand are adapted for Russian water supply systems. As stated, the water heater continues to operate even if the pressure is less than 13 mBar. Following the data in the operating instructions, the Neva gas water heater will begin operating at a pressure of 0.2 atmospheres. However, continuous operation of the equipment under such conditions should be avoided.

In the Neva 4511 model, the instructions provide for normal operation of the device at a pressure of 0.10 bar.

Separately, it is worth mentioning about maintenance

. In most cases, the service of imported geysers does not satisfy consumers. Even if the part needed for replacement is selected, its delivery may take a long time. And not many service centers undertake the repair of foreign speakers. The state of affairs is completely different for domestic gas instantaneous water heaters. For example, the Neva Transit gas water heater has a removable heat exchanger. The price of the component part is about 4000 rubles. It is this part in such devices that is most vulnerable.

Another advantageous feature of Russian systems is the price segment

. The cost of such devices, unlike imported models, is cheaper. In addition, such systems can operate properly for 7-10 years.

Technical characteristics: geyser Neva 3208

The service life of such a design as the Neva Lux is quite long, however, in order for it to serve properly and not require repairs, as malfunctions will appear, the owner must be able to use the product.

Typically this equipment is not required:

• Traction adjustment;
• Elimination of fistulas due to which the tank leaks;
• Clean the radiator.

It is worth noting that the heater will not work if there is water with low pressure in the pipes, and it is completely difficult to find a source of gas from which the device operates, and therefore these points can be called negative aspects of the design.

A column called Neva 4511 can function even at a pressure of 0.2 atmospheres, but it is not advisable to use it for a long time.

If such an electric geyser does not work well, then the heat exchanger may need to be replaced. The heater has the peculiarity that to change this part you do not need to contact a service center.

Review of the most popular speakers from Neva

The Neva model range of geysers has various options for ignition type, power, control system, and design features. Due to their reasonable price, such instantaneous water heaters are available to a large number of consumers. Let's look at the most popular devices from the Neva model range.

Gas water heater NEVA Neva Lux-6014

This is an improved model of instantaneous water heater, which replaced Neva Lux-5016.

1. The device turns on automatically when the tap is opened. Ignition type – electronic.
2. Capacity 14 liters per minute at water temperature 25 °C.
3. The system can operate either from a supplied gas pipeline or from liquefied bottled gas.
4. The rated power of 28 kW allows you to organize warm water supply to several points simultaneously.

Geyser NEVA Neva Lux-6014

The modern design of the geyser will help it fit harmoniously into any interior. Convenient electronic control with digital display

allows you to accurately adjust the water heating temperature and monitor the operating process.

The main distinguishing feature from previous models is the multi-stage security system. In case of any malfunction or malfunction of the column, the gas supply is stopped, which avoids its leakage.

Gas water heater NEVA Neva 4511

A high-quality, time-tested water heater with a modern ergonomic design.

1. With a power of 21 kW, its productivity is 11 liters per minute - easily cope with two water intake points.
2. Easy to use - has an electric ignition that runs on batteries. The connection is automatic when the tap is opened.
3. The digital display and electronic control system allows you to precisely set your preferred water temperature.
4. Modern security system.
5. Copper heat exchanger.

This water heater is designed for heating water for sanitary purposes in private and country houses and apartments.

Electronic display

If city residents do not even think about ways to get hot water to them, then the owners of private houses must independently provide themselves with such an achievement of civilization. In this case, the Neva gas water heater often becomes the source of hot water supply. This is an inexpensive, reliable and compact household device for providing residents with hot water. As a rule, it works properly, but breakdowns do occur. Then the owner of the house is faced with the question of repairs and purchasing spare parts for Neva gas water heaters.

Instructions for geysers series 5014 brand neva - download pdf

The Baltic Gas Company (BaltGaz Group) has been operating since 1995. Today the concern is the Russian market leader in the development, production and sale of gas water heaters and boilers.

The group includes two large plants: St. Petersburg Gazapparat and Armavir Gas Plant. equipment." The concern sells finished equipment and spare parts wholesale and retail to household and industrial consumers. Sales points are open in more than 1,500 settlements in the Russian Federation and neighboring countries. The number of authorized service centers is more than 400.

BaltGaz Group products combine Russian engineering experience and advanced European technologies. Gas water heaters are produced under the Neva and Neva Lux brands (NEVA and NEVA LUX). The quality of their workmanship and the level of environmental safety meet international standards, and the price is lower than that of foreign analogues.

Installation

The installation is safe.

All systems are turned off in the following cases:

• Gas turned off
• The water was turned off
• The pilot burner has gone out
• The water has heated above 90 degrees
• The draft in the chimney is broken.

Advantages of the water heater "Neva" 4511

• Small dimensions
• Design
• Loyal price
• Downtime operation
• Silent
• Simple on/off system design
• Temperature and power indicator
• Safety system
• Adjusting water and temperature
• Possibility of repair, low prices for spare parts

Minuses

• Low efficiency
• There is no control over the degree of water heating, but only adjustment
• Low bandwidth. You can only use water from one point, if you open a second tap you can get burned
• If the water quality is poor, it quickly becomes clogged.
• Installation is only possible on a dry wall with good thermal insulation
• Batteries must be replaced periodically.

Types of faults and their elimination

As you know, a perpetual motion machine has not yet been invented, and even the most reliable and high-quality equipment may experience malfunctions.

Let's look at some of them.

The device turns off periodically

1. Clean the chimney and check the entire system, as an option to strengthen the sealing
2. Very high water temperature. Increase water supply, reduce gas supply level.
3. Carbon deposits have formed. Just clean it.

The tap is turned on, but the water heater does not work

1. The batteries are dead. Replace
2. The inlet and outlet valves are not fully open.
3. Not enough liquid. Adjust flow
4. Poor pressure. Question with utilities
5. The filter is clogged and scale has formed. Perform cleaning.

There is a spark, but the device does not start

1. Check the gas supply valve, it may be closed
2. There was air in the pipes. A problem with the first start-up or a problem that arose as a result of the dispenser being idle. Open the water supply tap for a few seconds (5-7). Close. Perform the manipulation several times.
3. The spark does not reach the gas stream. The system is subject to adjustment.

Model range of geysers Neva

The wide range of equipment offered can cause serious difficulties when choosing the appropriate option. We invite you to get acquainted with the most popular models, their distinctive features and technical characteristics.

Geyser Neva 4510

Affordable model with a flat body and an aluminum alloy heat exchanger. Has an efficiency of 84%. Power - 17 kW. The ignition is powered by batteries. The Neva 4510 geyser has a capacity of 10 l/min. Capable of heating water up to 77°C.

Weighs 10.4 kg. It has small overall dimensions. Designed for a minimum pressure of 0.3 bar. Repairable. Spare parts are low cost. Power modulation is not provided.

The disadvantages include the short service life of individual elements.

Neva 4510

Geyser Neva Lux 5514

Powerful unit with a capacity of 14 l/min. Neva Lux 5514 is equipped with a Unigar modeling burner, started by electric ignition. There is a gas control function, thanks to which, in the absence of a flame, a special sensor will turn off the gas supply.

The Neva Lux geyser can be used to service two water points. Allows you to heat water up to 90°C. When developing the model, the operating features of the Russian water supply system were taken into account. Positive reviews about the Neva Lux 5514 gas water heater and the price of 10,000–12,000 rubles make the model relevant for a wide group of consumers.

Neva 5514

Watch this video on

Geyser Neva 4511

A high-quality modern model with an ergonomic design, the capabilities of which have been tested by many consumers. The unit has a power of 21 kW. It can be used to heat water for two water intake points, as it has a capacity of 11 l/min. Equipped with a copper heat exchanger.

The operating mode is set on a digital display using an electronic control system. Electric ignition runs on batteries.

Gas equipment is switched on automatically when the tap is opened. It has a modern security system, as indicated in the operating instructions.

Reviews of the Neva 4511 gas water heater confirm the relevance of this model for private houses and apartments.

Neva 4511

Geyser Neva 4513

A reliable water heater with an attractive minimalist design that can withstand operation in harsh Russian conditions. The model has a gas control function, which provides a sufficient level of safety when the gas supply is interrupted. The presence of a two-stage power modulation function allows you to optimize the cost of heating water.

The Neva 4513 gas water heater with a capacity of 22 kW allows the use of liquefied and natural gas. The maximum productivity of the unit reaches 13 l/min at a water temperature of 25°C and 8 l/min at 40°C. Easy to use. Weighs 13 kg. Repairable. Automatic ignition.

Neva 4513

Geyser Neva 3208: technical characteristics and features

A reliable model with a simple design. Can last for many years. A suitable option for heating running water. Powered by natural gas. For water heated to 40°C, the productivity is 6.45 l/min.

The technical characteristics of the Neva 3208 gas water heater provide an efficiency of at least 80%. The unit is equipped with a copper heat exchanger. Weighs 20 kg. Piezo ignition.

Neva 3208

Geyser Neva transit VPG-10E

A budget flow-type model that can run on natural and liquefied gas. An open firebox imposes certain requirements for installation work. The productivity of the Neva Transit gas water heater is 10 l/min with a nominal thermal output of 21 kW. Allows you to heat water up to 60°C. Weighs 9.5 kg. A forced smoke removal function is provided.

Neva transit VPG-10E

Recommendations for carrying out repair work

Replacement of the membrane on the column of each model is carried out only with compatible parts. Products should be purchased strictly from official suppliers or certified dealers. In terms of material, the silicone diaphragm offers increased durability.

The regulators are removed from the body by moving them towards you. If the speaker is equipped with a display, you will need to disconnect the cables associated with it.

The casing is removed by unscrewing the bolts or pulling forward and upward to loosen the latches. After this, you can disassemble the unit itself, which is responsible for replenishing the system with water.

No special methods are needed to change batteries, but you should still know how to do it.

The flag holding the lid must be turned 90 degrees counterclockwise.

When placing batteries vertically and securing them to flexible latches in the shape of the letter L, you need to move the parts to the side and remove the batteries.

Immediately after this, new energy sources can be installed and secured in place with the same latches. Some versions use a retractable container that comes out when you press the middle part of the bottom until it clicks.

It is not difficult to disassemble a gas water heater; most often you have to do this to clean it. Cleaning must be carried out on both the water supply and gas circuits.

The presence of dirt on the ignition elements threatens disaster, and clogging of the pipeline with scale sharply reduces energy efficiency. After removal, the unit receiving water is washed under the maximum possible pressure.

The column radiator can also be cleaned only when removed.

It is worth taking into account that if scale has blocked the movement of the nuts, you should not demonstrate heroic perseverance or call for help from stronger people. It is more correct and safer to remove the blockage using WD-40 liquid, which allows you to not break anything.

At home, a hot solution of citric acid or vinegar can replace the special liquid when flushing the heat exchanger. When returning the cleaned part to its place, it is necessary to replace each seal.

In the gas burner itself, without the help of professionals, it is permissible to clean only the ignition (using a steel brush).

To learn how to troubleshoot Neva geysers, see the following video.

Device and principle of operation

In many cases, fixing a problem with automatic ignition or with other components of the device is quite easy, and you don’t even have to seek the help of professionals. However, in order to understand why the Neva geyser does not work well, it is worth studying its structure.

The system includes:

• housings (for wall-mounted models - supplemented with mounting loops);
• heat exchangers made of copper;
• water circulation units;
• burner complexes;
• concentrators of gaseous combustion products (diffusers);
• pipes for connection with the chimney;
• water supply tubes;
• igniter electrode;
• faucet regulating the passage of water;
• segment for batteries;
• a system that regulates heating power and fuel consumption;
• ionization fire indicator.

The typical method of operation of a gas burner is very simple. As soon as the water tap supplying hot water is opened, the pressure of the jet begins to act on the membrane of the control unit.

Under its pressure, the rod moves, which opens the gas valve, and the contacts of the switching device close. Through the electrical circuit, current from the batteries begins to flow to the controller.

The electronics sends two signals at once: one by one, the valve opens, allowing gas to pass through; the second, an electric spark appears on special electrodes.

As soon as the fire detector detects characteristic ionization, it sends a signal to the central automation. It stops initiating the spark. Heating is carried out in standard operating mode. The mixer valve is closed. The membrane immediately moves back, and the gas passage valve closes.

At this moment, the limit switch is activated, stopping the flow of current to the controller. Without power supply, the electromagnet remains. Since no gas enters the burner, it should go out immediately.

The valve is connected to the same circuit as the draft meter. When this draft disappears or is weakened excessively, the heated sensor opens the circuit, thereby stopping the power supply to the electromagnet and the passage of gas to the burner.

JUNKERS (Junkers) BOSCH (Bosch)

Installation and operating instructions for the JUNKERS BOSCH WR gas water heater

Instructions for installation and operation of the BOSCH Therm geyser

VAILLANT

Instructions for installation and operation of the geyser VAILLANT atmoMAG

Installation and operation instructions for the VAILLANT MAG geyser

Geyser Neva 3208

The Neva gas water heater has been produced in the city of St. Petersburg for a long time, and perhaps our mothers and fathers used it. Now many modifications have appeared, but the first model does not lose its position and remains in demand due to its simplicity and reliability.

Note! Many who use such a device prefer to carry out simple repairs with their own hands. That’s why consumers so often look for spare parts and components for the Neva 3208 geyser.

Having mastered the repair of an old model, the consumer can quite successfully carry out simple adjustments to more modern models of gas equipment, while saving considerable sums of money.

The Neva column differs from other models in its clear and understandable controls, safety, independence from the availability of power supply and economical gas consumption. Ignition in it is carried out by batteries, which confirms its energy independence. A guarantee of safety is the fact that the ignition device turns on only when hot water is required. And this leads to gas savings. The gas burner starts working when the hot water tap is opened and immediately stops working as soon as the tap is closed.

Repair of geyser Neva

Experts do not recommend carrying out maintenance yourself, especially if you need to not only set up the equipment, but also disassemble it. Flow-through geysers are needed so that water does not stagnate, but flows, and the fact that it flows would be enough for consumer needs.

In this device, the solenoid valve often fails.

When you open the tap, you can hear the click of the machine, which helps ignite the burner, but gas does not flow. It is through the solenoid valve that gas is supplied to the burner. It is not difficult to replace it, just like heat exchangers. The diameter of the valve is standard, and the connection is not difficult. To purchase a spare part, you just need to know the model of your gas water heater or take with you an old faulty valve.

To remove and install water heating equipment, it is best to contact specialists with extensive experience who can not only carry out all the necessary actions, but also provide a guarantee.

To install a gas water heater, a special permit is required, since it needs to be powered from a gas pipe, and this is only possible with special equipment. After this, you need to register the gas water heater as an object of gas consumption, especially if you are connecting to the central pipeline.

As for operation, it is advisable not to heat it to the maximum level, as this will only speed up the process of salt and scale formation on the cavity of the heating element. It is important to take into account the hardness of the water used and select a special product that can soften it, which will significantly extend the life of all equipment.

What does the Neva 3208 gas water heater consist of?

The design of the Neva 3208 geyser includes many elements and components, but the most important are:

• heat exchanger;
• main gas burner;
• gas and water unit;
• security group;
• gas and water connections;
• air duct for removing combustion products;
• auxiliary components - electric or piezo ignition, manual or touch control panel, display, timer and more.

Heat exchanger

Heat exchanger Neva Lux

The heat exchanger, naturally, is the most important part of the geyser, since it is in it that the water is heated, and it occupies the main volume of the device.

The heat exchanger can be made of steel or copper. A copper unit is considered the best because it is not subject to corrosion and is therefore more durable. In Neva 3208 columns it is made only from pure copper.

Most often, replacement of this part of the column is required due to the formation of a large layer of scale inside it, which reduces the efficiency of the unit. To extend the life of the heat exchanger, you should not set the hot water temperature to the maximum, since only when the water boils does a layer of scale form. If replacement of this unit is required, such spare parts are always available at the service center.

Gas-burner

The main gas burner is located at the bottom of the column under the heat exchanger circuit, and is clearly visible through the viewing window. It is this device that quickly heats the water in the heat exchanger to the desired temperature.

Water and gas units

The water unit, like the gas unit, is responsible for regulating the supply of fuel and water to the main gas burner and heat exchanger.

In more modern models, such spare parts may not appear, since there these units are combined into a water-gas unit.

Safety

Membrane for column

No less important than the heat exchanger is the safety group.

It includes:

• thermocouple
• solenoid valve
• overheat sensors
• other devices responsible for the safe operation of the gas water heater.

If the flame on the main burner or igniter goes out, one of these devices will instantly shut off the gas supply. Also, special devices block the access of gas if there is not enough draft in the chimney or cold water does not flow into the heat exchanger.

Eyeliners

To supply gas and water, special supply hoses are required. Modern products are flexible bellows hoses. On the outside, they are braided with a metal spiral made of stainless steel and equipped with fittings with a threaded connection made of brass, fittings and gaskets.

Such eyeliners are highly resistant:

• to thermal expansion;
• reduction in diameter;
• lateral compression;
• breaks at the ends.

In addition, the use of flexible connections reduces the risk of problems during inaccurate installation, and also allows you to quickly and reliably connect the column to the water supply system and gas mains.

Air duct

Aluminum air ducts

When gas burns, various products, soot and soot are invariably released, which must be removed outside the premises. For this purpose, air ducts made of aluminum laminated foil are used. It has several layers and a steel spring to maintain the geometric shape of the corrugated sleeve.

Since the temperature of the exhaust gases is at least +110 degrees, the chimney can only be made of metal. Depending on the outlet diameter, the diameter of the flexible air duct is also selected. The maximum length of such a structure can reach 3 meters.

Assistive devices

The Neva 3208 column uses piezo ignition as ignition. It works thanks to two batteries that do not contain harmful components such as mercury or cadmium. Therefore, it is an environmentally friendly device.

The information display allows you to see the set water heating temperature. And the timer makes it possible to set the heating mode to the desired parameters.

Various modifications of geysers may have a coaxial chimney and a closed combustion chamber equipped with a fan to supply air to the burner.

Geyser Neva 3208 - Troubleshooting

___________________________________________________________________________________________

• Neva Transit - Troubleshooting
• Malfunctions of Neva Lux 6011 and 6014
• Recommendations for use of Neva 4510, 4511, 4513, 4610
• Adjustments and repairs Neva Lux 5513, 5514, 5611

Options for breakdowns and solutions Any repair work is carried out with the gas and water taps turned off. For further repairs it is necessary to remove the casing. To do this, you need to pull the gas control knob, secured to the rod with a spring. It is also important to remove the two screws holding the casing in place. Possible reasons why the Neva 3208 gas water heater does not light up: 1. No traction. When metal-plastic windows are installed, the supply of fresh air into the room is limited. Perhaps this is what is causing the breakdown. Since the draft is disrupted, the water heater overheats. Accordingly, the protective mechanism is triggered. To solve the problem, it is enough to ventilate the room for 10 minutes. After this, the device can be put into operation.

2. Also, a violation of draft can occur when foreign objects or soot get into the ventilation duct. This is checked using a piece of paper or newspaper. When applied to the vent it should stick to the grille. If there really is no traction, you need to call a specialist to clean it.

3. Damage to the water unit. To check this malfunction, it is necessary to measure the flow power entering and exiting the column. If the speed drops significantly, then there is a possibility that the filters are clogged. To eliminate it, you need to unscrew the nut near the water supply, remove it into the water filter and clean it. If this does not solve the problem, you need to inspect the membrane. It is located inside the water tank and can be reached by removing the lid. If it becomes dirty, it can be cleaned; if the membrane is damaged or deformed, a new one must be installed.

4. The gas burner is dirty. It is prohibited to clean the gas burner yourself. You can only remove soot from the jets yourself using a metal brush. After finishing work, be sure to check that there are no gas leaks.

5. The gas supply valve is closed. The device does not heat the water well. This problem occurs when a large amount of scale forms inside the heat exchanger. The flow of water is disrupted, which worsens the heat exchange process and increases gas consumption. The main reason for the appearance of scale is too hard water supplied to the system, as well as too high water heating temperature. In order to remove scale, it is recommended to use chemical reagents sold in specialized stores. To save money, or if it is impossible to get the components, you can use a solution of citric acid. In this case, 200 g of powder is diluted in 900 ml of hot water. The heat exchanger is flushed using a special device. It connects to the heat exchanger tubes and supplies the solution, freeing it from dirt and scale. If you don’t have such a device, you can soak the heat exchanger in a large tank. Using a funnel, pour the solution inside and boil for 30 minutes. Then leave for 90 minutes and rinse with running water. After that you can mount everything back. If the plaque is not removed, then you need to repeat the washing several times. Operation Please tell me, I’m having a hard time choosing the best gas water heater for my conditions. I currently have a Neva 3208 water heater. Its power is 23.2 kW, flow rate is 6.45 l/min. I basically have enough of it, almost. But I am not satisfied with adjusting the pressure to achieve a comfortable temperature. It is quite uncomfortable to wash, as the water is either cold or too hot. Although if you look at the flame, everything seems to be working correctly. The installed column is very old, more than 10 years old. I looked, now similar models have completely different characteristics. For example, on the Neva 6011 the power is only 21 kW and the flow rate is 11 liters per minute. Is it really possible to buy a unit of much lower power for a house like mine? The power should be enough to heat one point to any temperature, regardless of what temperature the water enters it. It has a flow rate of 6 l/minute not because it cannot heat more, but only because it has such a throughput. A 2.5mm hole physically cannot let more water through. You can improve the ease of use for this model, but then you can’t touch other taps. I advise you to pay attention to a device that has an automatic modulation function. For example, neva Lux 5014. There are only 3 apartments in our building. And for them, a Neva 3208 gas water heater is used. For some reason, it does not always light up, and when it lights up, it cannot heat the water. There are only three water points in the house, but even when one is running, the water remains cold. It only starts to heat up when two or more taps are open. But even in this case, the water is barely warm. We also noticed that the device works better in the evening and at night. At first I thought it was a problem with the water pressure, but the cold water pressure is very good. Could there be a gas pressure problem? There are no filters installed in the house. At the same time, the water is very hard. I also assume that scale has formed somewhere. What should I do? There are so many places on this model that there could be a flow problem. First of all, you need to check the mesh at the entrance to the water block. Look inside the inlet pipe as well. Next, check the place at the outlet of the water block, there is a Venturi tube with a diameter of only 3 mm. It already slows down the flow of water greatly, and if it is also clogged, then this may be causing your problem. At the same time, I advise you to check the membrane, or even replace it. The next unit that needs to be checked is the heat exchanger. It is completely covered in scale, and it should be washed with 10% acetic acid. Also pay attention to where it connects to the outlet pipe. Scale flakes collect well there. Disassemble all components sequentially, starting from the water inlet and moving towards the taps. How to turn on the device In order to turn on the Neva 3208 geyser, you need to switch it to standby mode using a mechanical regulator. In this mode, gas is supplied to the pilot burner through a special pipe. After this, you must press the solenoid valve button. The gas begins to move through the copper pipe through the solenoid valve and enters the gas unit. From there it moves to the ignition burner, where it mixes with air to form a gas-air mixture. It is this mixture that is ignited using piezo ignition. Once the flame appears, it heats the thermocouple, which produces an EDC, which allows the solenoid valve to be held open. The thermocouple heating time is 10 seconds, so it is important to hold the button for at least this time. Afterwards a flame appears and you can open the water valve. Water flows through a special copper tube to the water unit. A tension is created in the membrane cavity, which puts pressure on the burner with the rod. The rod begins to act on the gas valve, and it needs to overcome the resistance of the return spring. The valve on the gas unit opens. The gas begins to attack the manifold and is distributed throughout the gas burner, evenly entering each nozzle and burner section. There it is ignited using a pilot flame. The burner flame heats a copper heat exchanger through which cold water passes. It is in this unit that the water is heated. Exhaust gases are discharged from the device into a specially equipped chimney. Sensors and parameters controlled by them Presence of pilot flame. If this flame goes out for any reason, the gas supply is cut off. Control of water flow through the water unit. If the water flow stops, the column turns off the gas supply to the main burner, while the flame remains on the burner igniter. Presence of traction. If the chimney becomes clogged, the exhaust gases are not released into the atmosphere, but enter the room. A special sensor detects the accumulation of exhaust gases in the ignition group and turns off the gas supply. The temperature of the passing water is adjusted using a special knob that controls the gas pressure supplied to the burner. If less gas is supplied, the flame becomes lower and the water becomes colder. In order to turn off the gas burner, you must perform the following steps: 1. Turn off the water tap. 2. Install the relay in the column off position. 3. Turn off the gas supply valve. 4. Close the cold water supply valve. This device is highly durable and reliable; if used correctly, it will serve for a very long time. The low price is also a plus. But at the same time, it is important to take into account that its productivity is low, and therefore it is not capable of working at two water points. If a water heater breaks down, finding spare parts is difficult. However, breakdowns happen regularly.

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Accessory Features

In addition to the main spare parts, which most often fail, the consumer may need others. To know which ones to buy, you need to familiarize yourself with their functions when operating a gas water heater.

The silicone membrane is highly durable and is intended for water and gas units. By bending under water pressure, it opens gas access to the main burner. Its rupture results in the gas not igniting. In this case, the membrane must be replaced.

Sometimes the plate with the rod becomes unusable, since it is made of plastic or brass. It happens that the sealing part of the rubber rod is rubbed. They are also completely replaceable.

The solenoid valve performs a protective function when the gas supply to the main burner suddenly stops, and in other emergency situations.

Column Neva 3208 how to turn on?

To turn on the column, you must first switch it to standby (ignition) mode using the mechanical control knob. In this position, the gas flows to the pilot burner through the tube. Then the solenoid valve button is pressed.

After this, the gas flows through a copper tube through an electromagnetic valve into the gas unit, and then moves to the ignition burner, where a gas-air mixture is directly formed, which is ignited using piezo ignition. As soon as the flame ignites, it begins to heat the thermocouple, which, when heated, produces a CDS, with the help of which the solenoid valve is held.

Safety requirements for the operation of geysers

Essential elements

• Installation of the Neva 3208 column, as well as its maintenance and repair, must be carried out by a specialist who has access to working with gas equipment.
• It is forbidden to throw various things on the column, taking into account the open flame in the burners.
• In the room where the column is located, it is necessary to install ventilation ducts.
• If the heater is located in an unheated room in winter, it is imperative to remove water from the heat exchanger to prevent the tubes from breaking.
• The column can only be used with the type of gas indicated on the front panel of the device.
• There must be a constant flow of fresh air in the room where the speaker is installed.

Geyser Neva 4511

Ksenia We needed an inexpensive water heater from a well-known manufacturer, so my husband and I decided to opt for the Neva 4511 gas water heater. It works quite easily with two taps, providing consumers with enough hot water. True, when opening the second tap, the heating temperature changes slightly, but this is easily corrected with the help of a mixer. Therefore, this behavior is not a disadvantage. There is a small display on the front panel that shows the temperature of the hot water. There are two knobs nearby to regulate the temperature. Just above there is a small peephole to control the combustion of gas. But the design of the speaker is as if it was cut out of a single piece of iron with an ax - a mere rectangle. But it is quite reliable, although it is not without certain drawbacks.

Advantages:

• Heats water quickly, no need to wait long for heating after switching on;
• Quite affordable price; analogues from imported brands are more expensive;
• For three years there has been no leakage, which indicates the reliability of the assembly and heat exchanger;
• Convenient temperature and pressure adjustment.

Flaws:

• Sometimes the gas does not ignite immediately, but after a few seconds, which causes a strong bang;
• When overheated, it begins to make noise, like a roaring engine at high speeds. The noise appears already after +50 degrees;
• Very thin body. Not a very important flaw, but still somehow undignified. Although now all equipment is made in such cases, even washing machines.