Instructions for gas wall-mounted boilers neva lux (double-circuit) of the neva brand

Instructions NEVALUX 7218 in Russian in pdf format for the device: gas boiler. Read the instructions to become familiar with the functions and operating conditions, characteristics and troubleshooting methods. This user manual will help you use all the functionality of the product and increase its service life, provided that all the rules set out in the document are followed.

Heating boiler type: gas
Number of circuits: dual circuit
Minimum heating power: 8.9 kW
Maximum heating power: 18 kW
Heated area: 180 sq. m.
Efficiency: 92.5%
Installation method: wall mounted
Burner type: gas
Combustion chamber: closed
Non-volatile: No

Buy

Here you can watch a video review of Neva Lux 7218. Find out the characteristics, read reviews about Neva Lux 7218.

e1

Error e1.
This malfunction indicates low fluid pressure in the heating circuit. The reasons may be as follows:

The heating circuit has become airy or the pressure has dropped to its minimum point. Increase the fluid pressure in the system, remove air from the heating circuit.
The bypass valve is installed incorrectly or is faulty; to check, follow these steps: set the boiler to heating mode, then close the shut-off valve to the heating circuit.
The bypass should redirect the liquid not into the heating circuit, but pass it through the bypass line (at the same time it will heat up). And, if it is faulty, replace it with a new one, installing all the taps in the position in which they were before the check.
Pump failure. It is necessary to remove it from the device, disassemble it, wash it, and clean it of accumulated deposits. If this does not work, replace it.
There is a breakdown in the electrical circuit of the pressure sensor.
Using a multimeter, test the circuit for an open; if found, repair it. DHW sensor Visually check all contacts and connectors. If this does not give the expected result, replace it with a working device. Occurs often in Neva Lux 2073.
A slow-moving rod or sticking of the measuring device rod in the heating circuit, the cause could be a failure of the membrane on the flow sensor.
To begin, remove this sensor from the device, turn the boiler (pump) on and off, in a similar way you can remove the boiled rod. If this does not work, check the condition of the membrane; if it is worn or deformed, replace it.
There is a malfunction in the flow sensor, or the integrity of the connecting wire is broken. Perform an electrical circuit check and also check the connections of the controller board connectors. If the problem persists, replace the flow sensor. Typical for the Neva Lux 2083 model.
Failure in the electric motor of the three-way valve. Repair is not possible, complete replacement is necessary.

Basic error codes

Like any other device, it periodically fails. Next, we will consider in detail the error codes for the Neva Lux gas boiler.

Control panel of the gas boiler Neva Lux

e1

Error e1. This malfunction indicates low fluid pressure in the heating circuit.

The reasons may be as follows:

The heating circuit has become airy or the pressure has dropped to its minimum point. Increase the fluid pressure in the system, remove air from the heating circuit.
The bypass valve is installed incorrectly or is faulty; to check, follow these steps: set the boiler to heating mode, then close the shut-off valve to the heating circuit.
The bypass should redirect the liquid not into the heating circuit, but pass it through the bypass line (at the same time it will heat up). And, if it is faulty, replace it with a new one, installing all the taps in the position in which they were before the check.
Pump failure. It is necessary to remove it from the device, disassemble it, wash it, and clean it of accumulated deposits. If this does not work, replace it.
There is a breakdown in the electrical circuit of the pressure sensor. Using a multimeter, test the circuit for an open; if found, repair it.

DHW sensor
Visually check all contacts and connectors. If this does not give the expected result, replace it with a working device. Occurs often in Neva Lux 2073.
A slow-moving rod or sticking of the measuring device rod in the heating circuit, the cause could be a failure of the membrane on the flow sensor.
To begin, remove this sensor from the device, turn the boiler (pump) on and off, in a similar way you can remove the boiled rod. If this does not work, check the condition of the membrane; if it is worn or deformed, replace it.
There is a malfunction in the flow sensor, or the integrity of the connecting wire is broken. Perform an electrical circuit check and also check the connections of the controller board connectors. If the problem persists, replace the flow sensor. Typical for the Neva Lux 2083 model.
Failure in the electric motor of the three-way valve. Repair is not possible, complete replacement is necessary.

e2

Error e2. Ignition failed, check the following:

Open the shut-off valve on the gas pipeline; if you are using liquefied gas, the cylinder may be empty. There is a breakdown in the gas line, contact the gas service.
The spark plug is broken, replace it with a new one.
There is a fault in the electrical circuit of the spark plug. Using a multimeter, test the contacts for an open or short circuit.
There is insufficient distance between the spark plug and the burner section, set the gap to 5 mm.
Dust accumulation on the spark plug, clean it from deposits and degrease it.
Disturbance in the electrical ionization circuit. To check, do the following: while the device is operating, remove the wire from the spark plug. The boiler operation should stop and 01 will appear on the monitor.
Then connect the wire back and hold down the K6 and restart keys, after which the device will turn on. The flame is detected by the principle of monitoring the ionization current. Its measurements are carried out using a microammeter, alternately connecting ionization candles into the circuit.
The optimal value is from 3 to 5 microamps. A possible reason for the decrease is its leakage or insufficient connection, incorrect connection (swap the spark plug and ionization plug).
Insufficient distance in the ionization candle and separation by the burner. Set it in the 3mm range.

Ionization candles for boilers Neva Lux
The ignition transformer has failed. Replace it with a new one.
Damage to the electrical circuit in the ignition transformer. Check it for breaks and check the integrity of the connectors.
Burner block clogged. Clean it.
There is a malfunction in the electrical circuit of the fuel supply regulator. Check the circuit with a multimeter and test the controller board. Repair if you find a break; if the board is faulty, purchase a new one.
The electronic board is broken. Needs to be replaced.

e6

Error e6. No traction. Check the possible causes of this problem:

The chimney is clogged. Inspect the chimney and find out the cause, clean it if necessary;
The pressure switch tubes have become depressurized. Replace them.
Accumulation of condensate in the pressure switch tubes. Clean the tubes.
The electrical circuit of the pressure switch is broken. Test it and restore if necessary.

Boiler pressure switch Neva Lux
The pressure switch has failed. Cannot be repaired, needs to be replaced.
The electrical circuit in the fan is broken. Ring, check for a break, isolate if found.
The fan has broken down, replace it.

e7

Error e7. Exceeding the permissible temperature in the coolant.

Let's take a closer look at what the possible reasons are and what to do:

There is a blockage in the heating system, clean the heating circuit.
The thermostat is broken and shows an incorrect temperature (the temperature in the circuit does not exceed 95 degrees), replace the device with a working one.
Formation of an air lock in the heating circuit. The design provides a special valve for removing air from the heating system; open it.
The filter in the heating system is clogged, clean it.
The bypass valve is broken or incorrectly installed. Check it out.
Malfunction of the pump or board, check and correct if necessary.

Circulation pump
The device regulating the gas supply is broken, adjust it or replace it.
Switch S3 on the board is installed incorrectly, switch it.

01

Error 01. Malfunctions caused by unsuccessful ignition.

Possible reasons:

There is no gas supply. Check if the valve is open; if you are using a cylinder, make sure that the gas has not run out; if using mains gas, contact the gas service.
The spark plug is broken, or the integrity of the circuit is broken, check for a break, if the cause is not found, change it.
Insufficient gap between spark plug and burner. Measure it, it should be 5 mm, adjust.
When ignited, a spark from the electrode strikes the combustion chamber. Isolate the breakdown site.
Spark plug is dirty, clean it.
Problems in the ionization spark plug, check its connections with other elements for breaks or other faults, perhaps a large distance with the burner, should be 3 mm. Replace if necessary.
The ignition transformer is broken or there are problems with its electrical circuit. Ring the chain, restore if necessary, replace if it is faulty.

Ignition transformer
Carbon deposits have accumulated in the burner block; clean it.
The device that controls the gas supply is faulty. Check all its connections and replace if necessary.

02

Error 02. Indicates that the boiler is overheating.

Possible reasons:

There is a blockage in the heating system. Perform cleaning.
Thermal relay is broken, replace the thermal relay.
Pipes in the heating circuit are airy. Open the air exhaust flap.
The filter in the heating circuit is clogged. Clean it.
The bypass valve installation procedure is broken or incorrect. Install it correctly and check if it works properly.

Bypass in the heating system
The pump or valve responsible for removing air is broken. Check the pump and valve.
The electronic board has failed. Replace.

03

Error 03. To fix it, check:

The chimney duct is clogged or the structure is damaged.
The pressure switch tubes are depressurized, replace them.
The electrical circuit of the pressure switch is broken. Check all connections, ring it for rupture or short circuit (its contacts close at a pressure of 130 Pa).
The fan is broken, replace the fan.

Boiler fan Neva Lux

04

Error 04. Low pressure in the heating circuit, you need to check:

The pressure in the heating system has dropped too low, raise it to the recommended level.
There may be an air lock in the system; use the air bleed valve to remove it.
The pressure sensor in the heating circuit is broken. Replace it.
The pump is broken, clean it and replace it if necessary. Conduct a visual inspection of all connections and connectors on the control board.

99

Error 99. Indicates an electrical problem:

There is no grounding.
There is potential, that is, voltage, on the boiler.
The phase and zero are swapped.

The lineup

The manufacturer's product line includes several wall-mounted Neva Lux models with compact dimensions, the power of which varies from 12.7 to 30 kW.

The model is initially intended for use in apartments and small houses with an area of up to 110 square meters. m. This unit has two circuits and a closed chamber, with a power of 12.7 kW. Equipped with a bithermal heat exchanger and an electronic ignition system. Capable of heating up to 9 l/min when using DHW. The use of a common heat exchanger led to a reduction in cost while maintaining functions. Features low gas consumption.

Heater diagram Neva Lux 7218

The power of this double-circuit heater with one bithermic heat exchanger is 18 kW. Designed for living space up to 180 sq. m. It features a more powerful pump, as a result of which the heating rate of hot water reaches 14 liters per minute.
A double-circuit boiler with one bithermal heat exchanger is designed for rooms with a heating area of up to 240 sq. m. m.
It differs from the above model by connecting a remote control, an outdoor temperature thermostat and a personal computer. There are two heat exchangers, one of which is copper and the other is made of steel plates. Designed for 240 square meters of area. Runs on liquefied gas. Equipped with a closed chamber, cooled by water and a forced smoke removal system.
This double-circuit model with an open chamber is intended for use in heating systems of apartments and houses with a total area of up to 300 sq. m. m. Equipped with one bithermic heat exchanger.
Neva Lux 8624. This model, with a power of 24 kW, is equipped with two heat exchangers and an open combustion chamber. The Italian electronic board is adapted to our conditions.

As you can see, along with proven budget models, the manufacturer supplies their updated versions at a higher price. The firebox of the latter (the designation begins with an eight) was water-cooled. The heat exchanger for heating water is made from tubes of increased diameter, which slows down the appearance of scale.

The external cladding is made of metal-plastic. Three layers - primer, galvanization and enamel - reliably protect the boiler from corrosion. They feature improved control panels.

Neva service centers

Especially for your convenience, we have collected all the necessary information related to the service of tools and equipment. Here you will find the addresses of licensed service centers located in your city (the locality is determined automatically or by your choice).

Select your city: ArkhangelskBalashovBarnaulBlagoveshchenskVeliky NovgorodVelskVladimirVoskresenskVyaznikiGagarinGus-KhrustalnyDmitrovZhukovkaIvanovoKalugaKasimovKineshmaKovrovKolomnaKorolyovKostromaKubinkaLobnyaLyudinovoMalakhovkaMaloyaroslavetsMoscowMuromNovomoskovskObninskPavlovsky PosadPo chepPuchezhRzhevRostovRybinskRybnoyeRyazanSasovoSerpukhovSkopinSmolenskSobinkaTorzhokTulaTutaevUglichElektrostalYaroslavlYasnogorsk

e2

Error e2. Ignition failed, check the following:

Open the shut-off valve on the gas pipeline; if you are using liquefied gas, the cylinder may be empty. There is a breakdown in the gas line, contact the gas service.
The spark plug is broken, replace it with a new one.
There is a fault in the electrical circuit of the spark plug. Using a multimeter, test the contacts for an open or short circuit.
There is insufficient distance between the spark plug and the burner section, set the gap to 5 mm.
Dust accumulation on the spark plug, clean it from deposits and degrease it.
Disturbance in the electrical ionization circuit. To check, do the following: while the device is operating, remove the wire from the spark plug. The boiler operation should stop and 01 will appear on the monitor.
Then connect the wire back and hold down the K6 and restart keys, after which the device will turn on. The flame is detected by the principle of monitoring the ionization current. Its measurements are carried out using a microammeter, alternately connecting ionization candles into the circuit.
The optimal value is from 3 to 5 microamps. A possible reason for the decrease is its leakage or insufficient connection, incorrect connection (swap the spark plug and ionization plug).
Insufficient distance in the ionization candle and separation by the burner. Set it in the 3mm range. Ionization candles for boilers Neva Lux
The ignition transformer has failed. Replace it with a new one.
Damage to the electrical circuit in the ignition transformer. Check it for breaks and check the integrity of the connectors.
Burner block clogged. Clean it.
There is a malfunction in the electrical circuit of the fuel supply regulator. Check the circuit with a multimeter and test the controller board. Repair if you find a break; if the board is faulty, purchase a new one.
The electronic board is broken. Needs to be replaced.

Structural components

From a technical point of view, the Neva wall-mounted gas boiler is impeccable. It implements all the technical advances in heating engineering, as well as developments in the field of electronic control of heating circuits.

Structurally, the Neva double-circuit gas boiler consists of the following interconnected systems:

a control system consisting of an electronic unit that controls the operation of the boiler and ensures safety, and an electrical harness that connects sensors, an electronic board and other devices into a single system;
hydraulic system, including a pump for forced circulation, an automatic valve for removing air, a heat exchanger for heating the coolant, a secondary heat exchanger for the hot water system;
the gas system includes a burner unit, which ensures uniform and complete combustion of the gas-air mixture in the combustion chamber, and an ignition transformer to create a spark on the spark plug, which automatically ignites the gas mixture;
smoke removal system, which includes a fan for forced removal of combustion products and a chimney;
a setup and adjustment system consisting of a gas supply regulator to the burner block, a heating circuit temperature sensor, a DHW temperature sensor, and a DHW circuit flow sensor.

Design

At an adequate cost, Neva Lux gas boilers are distinguished by their high consumer properties.

Design of Neva Lux heaters

A serious advantage of Neva Lux boilers is their adaptability to operation in our realities.

Design features that ensure high demand include the following:

Heating circuit with two circuits;
Choice of open or closed combustion chamber;
Temperature control accuracy (up to 1 degree);
Use of external temperature sensors;
Automatic burner with flame modulation;
Security system with several levels;
LCD monitor with user-friendly interface;
Rich equipment, including pump and expansion tank;
Imported components.

The Neva Lux equipment set includes:

Separate heat exchangers for heating and hot water systems (not on all models);
Electronic ignition;
Built-in self-diagnosis;
Automatic temperature maintenance system;
Digital multi-level security system.

Model range of boilers Neva Lux

The luxury series, well known to consumers, is divided into two categories:

For heating an apartment or house, a wall-mounted single-circuit Neva boiler is best suited. Instead of a DHW circuit, you can install an indirect heating boiler. The modulation burner installed in such boilers, thanks to automatically changing combustion intensity, makes it possible to achieve high efficiency of the equipment. The 8618 single-circuit gas boiler attracts buyers with its low cost and simplicity of design, as well as the absence of complex energy-dependent automation.
The double-circuit boiler 7218 luxury series from the Neva company has extremely positive reviews due to its practicality and efficiency. Modern automation allows you to accurately monitor the temperature of the coolant and water in the DHW circuit. In addition, some models provide additional outlets for the underfloor heating system. The installed automation is capable of controlling each circuit separately. The most popular models are 7218 and 8224.

Advice! You can install a separate thermostat that will monitor the temperature in the room and transmit a signal to the gas boiler to turn on only when the temperature drops. This feature allows you to significantly reduce heating costs.

Now let's take a closer look at which models of Neva boilers are most popular among consumers.

Model Neva Lux 7218

For heating a living space up to 180 m2, the Neva Lux 7218 unit is best suited. The hot water circuit is designed to increase comfort and provides residents with hot water. This dual-circuit device is equipped with a bithermal heat exchanger, which reduces the cost of the 7218 boiler and maintains all user functions at a high level.

The heating gas apparatus Neva 7218 has the following technical characteristics and design features:

A closed combustion chamber is used.
The operating temperature range in the heating and DHW circuit of device 7218 is from 30 to 85 °C.
Additional settings will help convert the unit to operation on liquefied gas.
The efficiency of the model 7218 is 90%.
The electronic safety unit continuously monitors the flame. This happens both during heating and DHW circuit operation.
The ergonomic boiler Neva 7218 Lux goes on sale with European components, which has positive customer reviews.

Model Neva Lux 8224

This wall-mounted device Neva Lux 8224 has the following design features:

The increased power allows the use of double-circuit boilers 8224 for heating an area of up to 250 m².
The unique combustion chamber is water-cooled, which significantly increases the service life of all parts.
Microprocessor software installed in 8224 boilers ensures that the set temperature is maintained. The error is less than 1 degree.
In addition, the gas apparatus 8224 is equipped with two heat exchangers: a copper one for the heating circuit and a stainless steel plate one for DHW.

Also, equipment management in the 8224 model has reached a new level: the ability to remotely control and connect a PC has been added for diagnostics and more precise settings.

Advice! The Neva 8224 Lux units have a digital display; all current information from the automatic self-diagnosis system is displayed on it.

All these innovations have received praise from consumers.

Model Neva Lux 8618

The Neva Lux model 8618 is a single-circuit gas boiler. Compared to floor-standing units of the same power, the Neva 8618 model has a higher efficiency (up to 90%) and is characterized by reduced gas consumption.

Wall-mounted boilers Neva Lux 8618 have the following features:

Compact dimensions allow the unit to be installed even in small rooms without cluttering up the space.
The reliability and complete adaptation to domestic operating conditions of the 8618 model is confirmed by numerous positive reviews about this device.
The circulation pump built into the gas boiler 8618 from the Neva company allows installation in already installed heating systems.

In addition, such wall-mounted boilers have the ability to connect:

Indirect heating boiler.
Forced smoke exhaust fan.
A room thermostat, which makes the unit even more economical.

Advice! Another feature: gas boilers of this model are capable of operating at a pressure drop of up to 0.3 bar in the gas main.

https://youtube.com/watch?v=9S2J_tGLzK4

Advantages of Neva Lux

Neva Lux gas boilers, equipped with advanced automation and characterized by low energy consumption, are popular among home and country house owners.

Neva Lux gas boilers are wall-mounted double-circuit heating units equipped with open or closed combustion chambers, forced or natural smoke removal.

Neva Lux boilers are distinguished by their quality of workmanship and reliability, thanks to the use of exceptionally high-quality materials and advanced technologies. Consumers prefer this heating equipment, primarily for the following advantages:

Excellent design, build quality and reliability at a low cost;
High efficiency (up to 98%);
The use of not only natural gas, but also liquefied gas for heating, which is important in areas remote from gas mains;
Built-in multi-level security scheme;
Stable operation at low gas and water pressure puts them beyond competition with foreign analogues.

Possible faults

The more complex the equipment, the greater the likelihood of it failing. This is especially true for the electronics included in the control system. Despite the fact that Neva Lux heating boilers are considered extremely reliable, some types of malfunctions cannot be avoided. More often for reasons not related to the equipment itself. These include:

Low gas or water pressure in the system;
Breakage and attenuation of the flame;
Mechanical breakdowns.

The built-in self-diagnosis system displays an error code on the display, which is identified by the table on the last page of the instructions. If there is no warranty, you can fix some simple malfunctions yourself, but it is still better to contact the manufacturer’s customer support service or directly to the service center.

Most popular models

Let's look at the models of gas boilers from BaltGaz, which are in stable demand.

Neva Lux 7218

To supply heat to rooms with an area of up to 180 m², the best option is the Neva Lux 7218 boiler. The hot water supply circuit is necessary to increase comfort and provides residents with hot water. This double-circuit boiler includes a bithermic heat exchanger, thanks to which all user functions remain at a high level.

Distinctive features of the device design and technical characteristics are as follows:

closed combustion chamber;
the operating temperature in the heating circuit and the hot water supply circuit is between 30°C;
Thanks to additional settings, you can switch the operation of the equipment to liquefied gas;
The performance of the Neva Lux 7218 boiler is very high, the efficiency reaches 90%;
Thanks to the electronic unit, the flame is continuously monitored. This is carried out both during the operation of the heating circuit and the hot water supply circuit;
All components are European, due to which the unit has a large number of positive user reviews.

Neva Lux 8224

This unit is wall-mounted. Let's look at the design features of the device:

high power makes it possible to use double-circuit units 8224 to supply heat to rooms with an area of up to 250 m²;
the unique combustion chamber is water-cooled, which increases the service life of all structural elements several times;
microprocessor software, which is present in boilers of this model, determines the maintenance of the specified temperature regime. Error - less than 1°;
In addition, this device includes two heat exchangers: a copper one for heating; plate, made of stainless steel - for hot water supply.

More information about the types of heat exchangers for gas boilers is presented here

The control of the device in the model 8224 has been improved, a remote control option and a PC connection have appeared for diagnostics and the ability to more accurately configure the equipment.

Wall-mounted gas boiler Neva Lux 8224 with a closed combustion chamber

https://youtube.com/watch?v=Lq3SyGwwwN0

Neva Lux 8618

The wall-mounted gas boiler Neva Lux 8618 is a single-circuit gas boiler. Compared to floor-mounted units of the same power, this model has higher productivity, the efficiency is 90%. The boiler is also characterized by reduced gas consumption.

Wall-mounted units Neva Lux 8618 have the following characteristics:

due to its compact size, such equipment can be installed even in small rooms, they will not take up extra space;
a large number of positive reviews indicate the reliability of the equipment. The devices are suitable for Russian conditions;
Thanks to the built-in circulation pump, the boilers can be installed in ready-made heating systems.

In addition, to such boilers you can connect an indirect heating boiler, a forced smoke removal fan, or a room thermostat, thanks to which the equipment is highly economical.

Main technical characteristics and features of Neva company equipment

Please note that wall-mounted gas boilers on the market are available with open and closed combustion chambers. What does it mean? In the first case, combustion products are removed naturally, through the chimney to which the device is connected. The air required for normal gas combustion is taken from the room.

In the second case, the gas boiler is connected to a coaxial chimney, the design of which is made according to the “pipe-in-pipe” principle. Through the inner pipe, combustion products are forced out, thanks to the built-in fan, and air is supplied through the outer pipe, which comes from outside the room.

Wall-mounted double-circuit gas equipment is capable of performing two tasks aimed at heating the coolant and sanitary water. Heat exchangers are installed separately, one is designed to heat the coolant, the second is designed to heat sanitary water.

Household appliances of this type are distinguished by a wide power range, which allows you to select a unit for installation in an autonomous heating system for a house of any size

When choosing a device, it is important to take into account that 1 kW is required for normal heating of 10 m2. So, if a house, for example, has an area of 200 m2 in which there is a need for hot water supply, then in order for the system to operate stably, efficiently and economically, you will need to buy double-circuit gas boiler Neva of any model with a capacity of 24 kW

in which there is a need for hot water supply, then for the system to operate stably, efficiently and economically, you will need to buy a Neva double-circuit gas boiler of any model with a capacity of 24 kW.

Design features of the Neva boiler

Despite the fact that the Neva wall-mounted boiler is small in size, its design contains everything necessary for stable and high-quality operation of the equipment. Therefore, having chosen these heating boilers, you will not need to buy a separate circulation pump or expansion tank, the task of which is to promptly remove air from the heating system. According to experts, the built-in expansion tank can significantly increase the safety, reliability and stability of the heating system.

The main advantage of a built-in expansion tank from a remote tank is that there is no need to constantly check the coolant level; the equipment will do this for you. In addition, since there is no need to install an expansion tank, it is possible to significantly save on the installation of the heating system.

All models of gas boilers presented by Neva are equipped with pressure gauges, which are installed on the equipment panel

It is important to know that as the temperature increases, the pressure in the system increases and vice versa. The system should be replenished if the pressure drops below 1.5 atmospheres. Note that Neva wall-mounted appliances are able to continue to operate effectively at reduced gas and water pressure

Note that Neva wall-mounted appliances are able to continue to operate effectively at reduced gas and water pressure.

Let's return to the contours of the device, namely the one that is responsible for heating sanitary water intended for everyday needs. So, for its manufacture, stainless steel is used, the advantage of which is its high resistance to corrosion, thereby increasing the durability of the device.

If you want to extend the operational life of your equipment, it is recommended to install a filter on the water supply pipe through which water is supplied to the boiler, with the help of which the water will be purified and softened. Shut-off valves should be installed in front of the filter and on the return line, which will allow equipment maintenance and filter replacement to be carried out without unnecessary difficulties.

Features of operation

Before you start using Neva Lux, read the manufacturer's instructions. Yes, the boiler is easy to use, but following basic rules will help extend its service life and protect your home from unexpected problems.

On the outer cover of the housing there are two regulators - for heating and domestic hot water. Setting to “zero” means excluding the circuit from operation. Nearby is a reset button.

The operating algorithm of Neva Lux is based on the “set it and forget it” principle. It is enough to set the temperature once, and its parameters will not change under any circumstances.

If the electricity goes out, the mode will be restored automatically when it appears.

The control program includes an economical mode, which allows you not to turn off the heater during short-term departures. It is possible to program several days in advance. The remote control provides additional convenience to the user.

When gas supply stops, to prevent defrosting of the heating system in winter, a mode is provided to prevent freezing of the coolant. In this case, water circulates through the system when the burner is not working.

Neva Lux control panel

Connecting external temperature sensors makes it easier to control the temperature. The sensor is installed in the room farthest from the heater. If the air temperature in it drops below the programmed one, the boiler will turn on (burner) and restore the parameter. It is allowed to install 2-3 sensors simultaneously in different places.

An outdoor temperature sensor also makes the task easier, but its inclusion in the circuit is not recommended due to various types of interference in the form of solar heating, wind, or air with high/low humidity. Such a sensor is installed in proven places that eliminate or minimize the impact of “harmful” factors.

New company boiler Turbo

Neva Turbo boilers are, in fact, a modified version of the already familiar Lux modification, taking into account the shortcomings of previous versions. The models have the following technical characteristics:

Turbo boilers are energy-dependent. The boiler is powered by connecting to a regular 220 V mains voltage. For stable operation, you will need to install a UPS and a generator.

Ease of maintenance and operation

It is enough to connect the installation to the heating and power supply system and start heating your house or apartment. In practice, provided the heating system is already ready, all work takes about 3-4 hours.

After installation, there is no need to worry about the safety of the station. The sequence of operation of the automation completely eliminates the possibility of gas leakage and the creation of an emergency situation, even if an unplanned power outage occurs.

The main differences between Neva boilers

The Turbo modification provides economical gas consumption and, subject to proper operation, fully pays for itself within a few years.

Calculation of power and temperature of a warm water floor

Russian wall-mounted gas double-circuit boilers Neva provide consumers with maximum comfort when switching to autonomous heating and hot water supply. This equipment is intended for use in multi-apartment residential premises and country houses. For the production of boilers, modern materials are used, as well as high-quality components from the best European suppliers. The company's designers conduct a constant scientific research, testing prototypes of new models on an experimental one before launching into mass production.

Thanks to this, it is possible to correct all the shortcomings, improve the manufacturability of production and, which is important for gas equipment, increase the degree of its reliability. The domestic manufacturer BaltGaz has implemented two design options in Neva Lux gas double-circuit boilers

Thus, in the boilers of the 72 series, as well as in the BaltGaz 18 DBF boiler, a single bithermal heat exchanger is installed to work with heating and hot water circuits

This decision made it possible to reduce production costs, which had a positive effect on the pricing of these products. In addition, the products of the 72 series provide precise temperature control with a tolerance of 1 0 C. The models of the 82 and 86 series use a traditional layout with two heat exchangers - copper for the heating circuit and plate for the hot water supply circuit. The entire line of double-circuit boilers, with the exception of the Nevalux-8624 model, is equipped with a closed combustion chamber. In addition to the above, Nevalux gas double-circuit boilers are distinguished by thermal performance and minor design details:

Nevalux-7211 - thermal power 11 kW, bithermal heat exchanger, maximum heating area - 110 m2
Nevalux-7218 - thermal power 18 kW, bithermal heat exchanger, maximum heating area - 180 m2
Nevalux-7224 - thermal power 24 kW, bithermic heat exchanger, maximum heating area - 240 m2
BaltGaz 18 DBF - thermal power 18 kW, bithermal heat exchanger, maximum heating area - 180 m2
Nevalux-8624 - thermal power 24 kW, copper heat exchanger (heating) and plate heat exchanger (DHW), maximum heating area - 240 m2
Nevalux-8224 - thermal power 24 kW, copper heat exchanger (heating) and plate heat exchanger (DHW), maximum heating area - 240 m2
Nevalux-8230 - thermal power 30 kW, copper heat exchanger (heating) and plate heat exchanger (DHW), maximum heating area - 300 m2

Wall-mounted gas boilers are in great demand among consumers who have a house or small cottage. This is due to the advantages of this type of equipment. Thus, the wall-mounted boiler has small external dimensions, due to which the equipment can be installed indoors with minimal loss of space. The equipment does not make noise during operation and is capable of stably performing assigned tasks, regardless of operating conditions. Many users choose the Neva Lux double-circuit gas wall-mounted boiler for installation in the heating systems of their homes, the advantages and main technical characteristics of which will be discussed below.

Operating instructions NEVALUX 7224

CONTENT

SECURITY MEASURES ……………………………………………………………………………………………………………………………… … 4

TECHNICAL DESCRIPTION …………………………………………………………………………………………………………………………. 5

2.1.

Purpose of the boiler……………………………………………………………………………………………………………………………………………… …………….. 5

2.2.

Specifications……………………………………………………………………………………………………………………………. 5

2.3.

Overall and connection dimensions ………………………………………………………………………………………………………………… 6

USER MANUAL …………………………………………………………………………………………………………………………………… 7

3.1.

Control Panel ……………………………………………………………………………………………………………………………… ………….. 7

3.2.

Boiler operating modes……………………………………………………………………………………………………………………………………………… ………… 8

3.2.1.

Standby mode……………………………………………………………………………………………………………………………… …………. 8

3.2.2.

DHW mode……………………………………………………………………………………………………………………………………………… …………………. 8

3.2.3.

Combined mode……………………………………………………………………………………………………………………………………… 9

3.2.4.

Heating mode……………………………………………………………………………………………………………………………………… ………… 9

3.3.

Additional functions ……………………………………………………………………………………………………………………………… .. 9

3.3.1.

Anti-freeze function………………………………………………………………………………………………………………………………………………. . 9

3.3.2.

Anti-blocking function………………………………………………………………………………………………………………………………………. 9

3.3.3.

Boiler operation in heating mode with an external (outdoor) temperature sensor ………………………………………….. 9

3.3.4.

Boiler operation at low/high supply voltage……………………………………………………………… 10

BOILER MAINTENANCE …………………………………………………………………………………………………………………… 10

4.1.

Inspection…………………………………………………………………………………………………………………………………………… ……………………….. 10

4.2.

Boiler care……………………………………………………………………………………………………………………………………………… …………………. 10

4.3.

Operations performed during maintenance…………………………………………………………………………………. eleven

STORAGE RULES ……………………………………………………………………………………………………………………………………… … eleven

GENERAL REQUIREMENTS ……………………………………………………………………………………………………………………………… … eleven

OPERATIONS BEFORE INSTALLATION …………………………………………………………………………………………………………………….. 12

7.1.

DHW system……………………………………………………………………………………………………………………………………………… …………………. 12

7.2.

Heating system……………………………………………………………………………………………………………………………………………… ………… 12

7.2.1.

New heating system………………………………………………………………………………………………………………………………………. . 12

7.2.2.

Existing heating system……………………………………………………………………………………………………………. 12

7.3.

Selection of an additional expansion tank………………………………………………………………………………………….. 12

BOILER INSTALLATION ……………………………………………………………………………………………………………………………………… ………… 13

8.1.

Mounting the boiler on the wall …………………………………………………………………………………………………………………………………………… ……. 13

8.2.

Connecting the boiler to the heating system and DHW system ………………………………………………………………………………… 13

8.3.

Connecting the boiler to the gas network………………………………………………………………………………………………………………. 13

8.4.

Connecting the boiler to a liquefied gas cylinder ……………………………………………………………………………………….. 14

8.5.

Connecting the boiler to the electrical network …………………………………………………………………………………………………………….. 14

SMOKE OUTLET INSTALLATION ……………………………………………………………………………………………………………………………………… 15

9.1.

Installation of a coaxial chimney ……………………………………………………………………………………………………………….. 15

9.2.

Installation of separate chimney and air duct pipes ……………………………………………………………………………………… 16

9.2.1.

Installation of separate flue and air duct pipes using adapter kit KHG 714061510 .. 16

9.2.2.

Installation of separate flue and air duct pipes using a duct separator 8023-10.000 …………… 17

10.

PUTTING THE BOILER INTO OPERATION (FIRST START-UP) ………………………………………………………………………………… 19

10.1.

Filling the heating circuit with water and pre-start checks……………………………………………………………….. 19

10.2.

Checking combustion parameters ………………………………………………………………………………………………………………… 20

10.3.

Additional features (options) …………………………………………………………………………………………………………… 20

10.3.1.

Connecting a room thermostat ………………………………………………………………………………………………………… 20

10.3.2.

Connecting the remote control………………………………………………………………………………………… 20

10.3.3.

Connecting an external temperature sensor………………………………………………………………………………………… 21

10.3.4.

Connecting a computer for diagnostics…………………………………………………………………………………………………. 21

10.3.5.

Connecting several room thermostats………………………………………………………………………………….. 21

10.4.

Turning off the boiler……………………………………………………………………………………………………………………………………………… …………. 21

10.5.

Draining water from the boiler heating circuit …………………………………………………………………………………………………………… 21

11.

BOILER POWER ADJUSTMENT ………………………………………………………………………………………………………………. 22

11.1.

Preparation for work……………………………………………………………………………………………………………………………………………… …………. 22

11.2.

Checking the gas pressure at the inlet to the regulator……………………………………………………………………………………………………………. 22

11.3.

Adjusting the nominal pressure…………………………………………………………………………………………………………………… 22

11.4.

Minimum pressure adjustment…………………………………………………………………………………………………………… 23

11.5.

End of work ……………………………………………………………………………………………………………………………… …………. 23

12.

CONVERTING THE BOILER TO ANOTHER TYPE OF GAS …………………………………………………………………………………………………………….. 23

13.

FUNCTIONAL DIAGRAM AND BOILER OPERATION CONTROL ……………………………………………………… 24

13.1.

Functional diagram of boilers “NEVALUX-7224” and “NEVALUX-7218” ………………………………………………………. 24

13.2.

Main components……………………………………………………………………………………………………………………………………… …… 25

13.2.1.

Control system ……………………………………………………………………………………………………………………………… ….. 25

13.2.2.

Hydraulic system ……………………………………………………………………………………………………………………………. 25

13.2.3.

Gas system……………………………………………………………………………………………………………………………………………… ………… 25

13.2.4.

Smoke exhaust system……………………………………………………………………………………………………………………………………… 25

13.2.5.

Control devices …………………………………………………………………………………………………………………………………… 25

Design and principle of operation of Neva Lux boilers

Neva Lux gas boilers are presented in two variations - wall-mounted and floor-mounted; let's look at their design using the example of some models. Neva Lux 8618 is a single-circuit heating boiler, wall-mounted, has low energy consumption, a fairly high efficiency of 91%, power 18 kW. Can heat a room with an area of 30 to 180 square meters.

Powered by both natural and liquefied gas. It has small dimensions, is equipped with a combustion chamber that is cooled with water, and can also be connected to a room thermostat, which is convenient for use. Equipped with a protection device against overheating (boiling), a thermostat against overheating of the gas exhaust device. Can be connected to both the chimney and the turbo nozzle.

Neva Lux 8224 is a double-circuit gas boiler designed for heating a room up to 240 meters2, as well as for heating water for household needs, with a throughput capacity of 14 liters per minute. Its power is 24 kW, equipped with a closed combustion chamber.

The installation method is wall-mounted, equipped with a built-in 6-liter expansion tank, this makes it possible to connect the boiler to a 70-liter heating circuit. The design provides two heat exchangers, a copper one for the heating circuit, and a second one made of stainless steel for hot water supply.

Powered by natural or liquefied gas, for ease of use it has a display that reflects the current and set temperature in the coolant.

Neva Lux 7224 - installation method: wall-mounted, double-circuit device designed for heating a room up to 240 m2, water throughput for domestic needs is 14 liters per minute. Can run on natural gas and liquefied gas, efficiency 92%.

Equipped with a bithermal heat exchanger, thanks to which it is possible to reduce the final cost of heat. It is equipped with an electronic self-diagnosis system, and a small display is installed on the body to indicate readings.

Neva Lux 7023 - wall mounting, designed for heating a room up to 250 meters2, as well as heating process water 13 liters per minute. It runs not only on natural gas, but also on liquefied gas; for ease of operation, you can connect a room controller.

Smoke is removed forcibly using a built-in fan; combustion air is pumped from the street. It is equipped with a closed combustion chamber, has a coaxial heat exchanger, and an expansion tank with a capacity of 6 liters.

Neva Lux 8023 is a double-circuit wall-mounted boiler that can provide heat to a room whose area does not exceed 240 m2. Liquid circulation in the system is forced, using a pump, equipped with a closed combustion chamber.

Smoke removal occurs thanks to an exhaust fan. The power of the device is 23 kW, there are two heat exchangers, the heating circuit is paramount, made of high-alloy stainless steel.

Boiler Neva Turbo

Users left various reviews about the quality and ease of use: positive and negative. Over time, all the necessary adjustments resulted in the production of a separate series of heating devices. Neva Turbo units are, by and large, a modified version of the already familiar Lux series.

Boiler Neva TURBO 24

All shortcomings were taken into account here. The technical characteristics of the models are as follows: . closed combustion chamber - here there is a forced air supply through a fan

Smoke removal is carried out using a special device through a coaxial chimney; What are gas boiler fans needed for and what types they are, you can find out

automation - wall-mounted gas double-circuit boiler - Neva Turbo is fully adapted for operation. A multi-level system of sensors and valves is responsible for the safety of equipment operation and heating regulation. The package includes an autodiagnostic system, which automatically carries out a test, the results of which are displayed on the liquid crystal display; control is on regular buttons. Using a conventional regulator, you can set the desired temperature mode, provided that the programmer is installed, you can select operating conditions for several days or a week. The additional kit includes a room thermostat. The sensor issues a signal to turn off the heating when the room is heated to the desired temperature.

closed combustion chamber - here there is a forced air supply through a fan. Smoke removal is carried out using a special device through a coaxial chimney; What are gas boiler fans needed for and what types they are, you can find out

automation - wall-mounted gas double-circuit boiler - Neva Turbo is fully adapted for operation. A multi-level system of sensors and valves is responsible for the safety of equipment operation and heating regulation. The package includes an autodiagnostic system, which automatically carries out a test, the results of which are displayed on the liquid crystal display;
control is on regular buttons. Using a conventional regulator, you can set the desired temperature mode, provided that the programmer is installed, you can select operating conditions for several days or a week. The additional kit includes a room thermostat. The sensor issues a signal to turn off the heating when the room is heated to the desired temperature.

Turbo boilers are energy-dependent units. Electrical power to the boiler is achieved by connecting to a regular voltage network of 220 V.

Maintenance and operation

Regardless of which model you prefer, installation of a wall-mounted boiler is carried out in the shortest possible time without any additional costs.

The manufacturer places the main emphasis on ease of installation and subsequent operation of the unit. That is why the heating devices of the Neva Lux company are a completely ready-to-use station. All you need to do is connect the equipment to the heating system and power supply and start heating the room. As practice shows, all work takes 3-4 hours. After installation has been completed, there is no need to worry about the safe operation of the station. Consistent operation of the automation reduces to zero the risk of gas leaks and emergency situations, even in the event of an unplanned power outage.