Technical characteristics of the gas water heater Neva-4511 and the nuances of its use

Among the huge variety of water heating equipment, it can be quite difficult for the average consumer to choose the right model for their home. Knowledge of the basic principle of operation of devices, technical characteristics and design features will help to deal with this difficult issue. Together with experts from the online magazine Seti.guru, we’ll look at what a Neva gas water heater is, the criteria for choosing water heating devices, and a detailed overview of the model range.

Gas water heater Neva 4511

About company

The history of the Gazapparat enterprise began in 1945, when gas deposits were discovered near Saratov. This was the impetus for the construction of a plant for the production of gas equipment. At first, gas stoves and stove burners were made here. Later they began to produce water heaters, which were constantly improved and modernized.

The speakers are a worthy competitor to imported analogues. The equipment of the Russian plant can operate in a wide variety of climatic conditions. The company's products are imported to the countries of Europe, Africa, and Asia.

When a Neva gas water heater is used, its purpose

Despite the fact that many modern houses have a centralized supply of hot water, domestic gas water heaters have not lost their relevance. Such equipment provides comfortable living conditions for many ordinary people. Instantaneous heaters allow you to use hot water for domestic needs at any time convenient for consumers and do not depend on the work of municipal utilities.

Among the huge number of imported and domestic geysers on the market, it is worth highlighting Neva brand devices. The products are manufactured at the Russian enterprise Gazapparat, are equipped with modern automation and have high build quality. All models are designed taking into account the operating characteristics of domestic gas and water mains, which ensures uninterrupted operation of the equipment.

Design

Structurally, the Neva columns are:

Flow-through. They are compact - small dimensions are achieved due to the absence of a storage tank. Such devices are suitable for small, well-ventilated rooms. The productivity of flow devices is low. If a flow column is purchased to serve several water intake points, you will have to choose a version with high power.

Flow-type devices are often chosen by apartment owners.

Cumulative. They have impressive dimensions. Tank capacity - 50–500 l. It contains a supply of heated water. Effective thermal insulation prevents it from cooling down. To use hot water, you do not need to start the device every time. Storage columns are equipped with efficient heat exchangers.

The disadvantage of such water heaters is their size - due to their large dimensions, they have to be installed in special rooms, in basements or attics. Such devices are usually purchased for private homes. If the consumer chooses the Neva 4511 storage type version, the weight of the water tank should be taken into account - a concrete base will have to be prepared.

Main problems and repairs of the Neva gas water heater

Neva column does not light up

If the Neva gas water heater does not ignite, first of all you should check the electronic unit that generates the spark. As a rule, the problem is solved by replacing it. This is quite simple to do, for which you need to remove the front screen, then unscrew the fastening bolts and remove the power wires (the new unit is installed in the reverse order).

Water unit of the Neva column

Why does the Neva gas water heater not turn on?

Let's look at the main causes of malfunctions of Neva brand water dispensers, due to which the equipment will not turn on and heat the water. They are typical for the entire model range. One of them is the lack of draft in the ventilation ducts. The problem is solved by cleaning the chimney shaft, for which you should use a brush with steel bristles.

Construction of a water-gas unit for Neva 4510, 4511, 4513 series dispensers

If the column has an automatic ignition system, you should check the operation of the generator, batteries, and the power button. Most often, the unit does not turn on because the batteries are dead. It is enough to replace them with new ones and clean the contacts.

Replacing batteries in the electric ignition system

Weak pressure in the water and gas supply (there is a spark, the column does not work) will also prevent the device from turning on. The solution to this problem is to call specialists from the relevant services to clean the lines.

Where to find spare parts for the Neva gas water heater

Spare parts can be easily purchased from official dealers specializing in the sale of gas and water heating equipment. In most Russian cities there are representative offices of various manufacturing companies where you can purchase certified products, which guarantees long-term operation of the devices. The same can be done in online stores (request quality certificates for the spare parts offered).

Repair kit for geysers Neva

What should the water pressure be?

Normal operation of water heaters requires a certain pressure in the water pipes:

• minimum - if it is below the set value, the launch will not occur;
• the maximum is what the heat exchanger can withstand.

The first parameter is especially important for flow-through versions: they will not turn on if the pressure is insufficient and there will be no hot water. This characteristic is especially important for residents of older houses with worn-out systems, where the pressure is often low. Such buyers need to choose options with a minimum threshold of no more than 0.15 bar.

No less important is the maximum value that the device can withstand. In the water supply system there are water hammers, leading to short-term increases in pressure. Such situations can lead to rupture of the coolant. Experts recommend buying devices that can withstand 11–12 bar.

Ignition type

Neva water heaters have the following ignition type:

1. Manual. To turn on the column, the user has to press the ignition button and bring the fire to the igniter. Old models made in the last century are equipped with this ignition method. This is an inconvenient, and most importantly, unsafe way to launch. In addition, this is an uneconomical option: the wick burns constantly, wasting gas.
2. Piezo ignition. This method of ignition, for example, is in modification 3208. The fire is activated by pressing a button. The first ignition of the wick is done manually - to do this, press two buttons at once: gas and piezo ignition. In the future, to start the device, you only need to open the tap - the igniter will ignite the main burner and a hot stream will appear at the outlet. The disadvantage of this type of ignition is the constant burning of the igniter.
3. Electric ignition. Instead of a wick, a source of electricity is used, which is powered by batteries. This method allows you to save gas. This type of ignition is available for models 4511, 5011 and 5014.

Electric ignition is the most modern and convenient way to start. Automatic ignition can be volatile or non-volatile. The first option is bad because if there is a power outage, the device will not be able to start - the user, along with the power outage, will also lose hot water. The most reliable and convenient way is to power it from batteries; the main thing is to have spare ones on hand.

The general principle of operation of Neva geysers and their types

Let's consider the operating principle of Neva household water heating gas equipment and its varieties. The dispensers differ in the type of ignition of the incoming fuel, design features of the chimney, power, weight and size indicators, level of safety and the presence of additional functions.

Diagram of the Neva gas water heater

Related article:

Repair of geysers at home. In this publication we will look at the design and operating principle of geysers, the main types of malfunctions and how to eliminate them.

The operating principle of Neva brand dispensers is as follows: after opening the valve, water flows under pressure into the cavity of the water-gas unit (12). It has a membrane that acts through the stem on the valve. After it opens, the gas enters the main burner (10).

Thanks to the electrode, the gas is ignited using a pilot burner (3). In turn, the water flows into the heat exchanger pipeline (2), where it is heated to a certain temperature and supplied to all intake points in the home. The principle of construction of Neva geysers is almost the same. All models have a long warranty period (for example, for the Neva 4511 brand it is 12 years).

How to choose power

The capabilities of the water heater depend on the power - the more powerful it is, the better it heats the water. If the power is low, the device will not be able to provide hot water to several points.

Columns are usually divided into:

• low-power - 17–20 kW;
• medium - 20–26 kW;
• powerful - 26–28 kW.

Low-power versions are taken for one water intake point. If hot water is required in the kitchen and bathroom, medium power is needed. So, for 2-3 points, Neva Lux 5011 or 5014 is suitable. To provide 3-4 points, you will need a powerful version. The more powerful the modification, the higher its cost.

The combustion chamber

produces water heaters with both types of fireboxes - closed and open. In the first case, forced draft is used, in the second - natural.

A coaxial chimney is connected to models with a closed chamber. Its design allows for the simultaneous removal of gases and the supply of combustion air. Open chambers involve the absorption of air from the room. Such modifications require a traditional chimney.

Versions with open fireboxes are installed in rooms that meet safety requirements:

• area from 8 m²;
• effective ventilation system made of heat-resistant material.

Specifications

Among other important characteristics, the rated power should be highlighted, which is 21 kW. This equipment weighs 11 kg. It has automatic ignition and an open combustion chamber.

Using the display you can monitor the operation of the device. It has a heating indicator. When connecting, you should be interested in the diameter of the chimney, which is 125 mm. The consumption of liquefied and natural gas during operation of the device is 0.8 and 2.2 m3 per hour, respectively.

Safety system

The basis for the safety of gas equipment is a well-thought-out emergency protection system. The manufacturer has equipped all modifications of Neva gas water heaters with sensors that monitor the operation of the device and ensure its safe operation. Protection is provided by the following elements:

• Sensors: flame; water pressure; temperature control.
• Safety valve.
• Thermal relay.

Sensors that monitor temperature changes are installed on improved versions of the Neva Lux boilers 4513 and 4514. These elements allow you to change the water temperature if water intake points are connected or disconnected.

Model overview

Let's look at the best models.

Neva 4511

Atmospheric type water heater. Power - 21 kW. Suitable for 2 water intake points, no more. This is the most compact version in the entire series, and it is the one that is most suitable for tight spaces. Approximate price - 9,000 rubles. Control is mechanical. Ignition is from batteries.

Specifications:

Neva 6014

Judging by functionality, technical characteristics and safety, this is perhaps the best speaker in the entire model line. The case is made in hi-tech style. Color: steel gray. Having a lot of advantages, it has a moderate price - about 14,000 rubles. It is full of automation, which makes use simple, convenient and safe. It is easy to install, as it has modest dimensions and light weight.

Technical specifications:

Main advantages:

• multi-stage protection system;
• digital display;
• battery level indicator;
• water cooling system near the combustion chamber.

Neva 5514

This is one of the most powerful modifications of the brand. It features a technologically advanced design and simple, intuitive controls. Easy to install, suitable for any interior. It has modest dimensions and light weight. Operation at extremely low water pressure is possible - start-up occurs at 0.1 bar. Smooth temperature control eliminates the possibility of burns.

Performance characteristics:

Advantages:

• viewing window allowing you to monitor the operation of the burner;
• automatic combustion control - when the fire goes out, the system turns off;
• 2-stage flame modulation;
• ease of repair - easy to purchase spare parts.

Neva 4510 and 4510 M

Inexpensive modification with a flat body and an aluminum heat exchanger. This is the cheapest model from Gazapparat. Russian development and Chinese components. Battery ignition. 4510 M is an improved version, this is also an automatic dispenser, but it is more compact and has a copper heat exchanger.

Model 4510 Features:

Advantages:

• low cost - about 6,000 rubles;
• accessible and inexpensive spare parts;
• small sizes;
• 2 years warranty;
• work at minimum water pressure;
• service centers in all regions.

Flaws:

• no power modulation;
• unreliable heat exchanger (4510);
• low quality components.

Transit VPG-10E

Flow type device, with an open firebox. Works on any type of gas. Approximate price - 7,300 rubles. Parameters and design features:

Service

An important advantage of the Neva and Neva Lux devices is a replaceable heat exchanger. By purchasing it for 3,500–4,000 rubles, you can extend the operation of the old device rather than buying a new one. The manufacturer equips new versions with copper heat exchangers that are resistant to corrosion, but scale and salts still remain a problem.

In order for the device to operate smoothly, it needs timely maintenance and troubleshooting:

• One common problem is a broken solenoid valve. When the user opens the tap, a click is heard - the electric ignition machine is activated, but gas does not flow to the burner. The valve, secured with screws, is easy to replace - its diameter is standard.
• The outlet temperature should be limited. Very hot water promotes the formation of scale and salts on the walls of the heating element.
• It is necessary to promptly clean the burners and heat exchanger, and clean the entire device from contamination.

Before operating the equipment, the user must read the instructions, which describe the device structure and provide a connection diagram.

conclusions

So, we looked at the features of the units of the Neva Transit model range. From the information presented we can conclude that this technique is a budget engineering solution that everyone can afford.

We looked at typical malfunctions for the Neva Transit gas water heater, and also described methods for solving the two most common problems. The information presented will help you choose the appropriate modification of the Transit series dispenser and understand the features of its operation and repair.

Sources

• https://teplo.guru/vodonagrevateli/gazovaya-kolonka-neva-4511.html
• https://homius.ru/kolonka-gazovaya-neva.html
• https://www.e-katalog.ru/NEVA-4511.htm
• https://HouseChief.ru/kolonka-gazovaya-neva.html
• https://qustu.com/instruktsiya-po-ustraneniyu-neispravnostej-gazovoj-kolonki-neva-4511/
• https://sovet-ingenera.com/otoplenie/vodonagrevatel/gazovogo-vodonagrevatelya-neva.html
• https://prostokotel.ru/gazovye-kotly-otopleniya/neva/semejjstvo-gazovykh-kolonok-neva-tranzit.html

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