Gas water heaters Lemax - Questions about setup and operation

Operation of the geyser Neva Lux 5611

Launch of the gas water heater Neva Lux 5611

To turn on and start the gas water heater Neva Lux 5611 you must:

— install batteries in the battery compartment;

— open the shut-off valve on the gas pipeline in front of the device (if it was closed);

- open the cold water shut-off valve on the water supply installed in front of the device (if it was closed);

— turn knobs 1 and 2 to the positions of minimum gas and water flow (see Fig. 2a);

When first ignited or after a long break in the operation of the device, the burner will ignite only after air has been removed from the gas lines.

Since spark discharges last about 7 seconds after turning on the water, to continue ignition it is necessary to close the hot water tap and then open it again. This procedure must be repeated until the air is completely released from the communications and the burner is ignited.

After starting the Neva Lux 5611 gas water heater, it is necessary to visually check the operation of the burner through the inspection window. The flame should be blue, even and free of yellow smoky edges, indicating clogging of the internal channels of the burner sections.

Methods for adjusting the degree of water heating

The water flow through the device is adjusted using knob 2 (Fig. 2): turning the knob to the “Minimum flow” position reduces the water flow, turning the knob to the “Maximum flow” position increases the water flow.

In this case, in the “Minimum flow” knob position, the water heater is turned on at a water flow rate of at least 2.5 l/min, in the “Maximum flow” position – at a water flow rate of at least 6 l/min. In intermediate positions of handle 1, the water heater is turned on, respectively, in the flow range of 2.5...6 l/min.

If the inlet water pressure is low (with a small water flow provided by the water supply network), it is recommended to leave knob 2 in the “Minimum flow” position to turn on the device. In this position, it is possible to obtain low and medium flow rates (2.5...5 l/min) of hot water at the outlet of the device.

To obtain a large amount of warm water at the outlet of the device at normal input water pressure (at a water flow rate of 6 l/min or more provided by the water supply network), handle 2 should be moved to the “Maximum flow” position.

Rice. 2. Adjustment knob positions

If the flow of water flowing through a working gas water heater Neva Lux 5611 is low, turning knob 2 to the “Maximum flow” position may lead to the burner going out.

The burner can also go out when the flow rate of the hot water tap decreases or when the inlet water pressure drops. To make the burner work again, you need to turn knob 2 to the “Minimum flow” position or increase the water flow with the hot water tap.

The water temperature is adjusted by turning knob 1 for adjusting gas flow (Fig. 2): turning the knob to the “Maximum flow” position increases the gas flow and water temperature at the outlet of the device, turning the knob to the “Minimum flow” position reduces the gas flow and water temperature at the outlet apparatus.

It is also possible to regulate the water temperature at the outlet of the device by changing the water flow using a hot water tap or handle 2: an increase in water flow leads to a decrease in its temperature and, conversely, a decrease in water flow leads to an increase in its temperature.

The water heating temperature is limited by the heating capacity: with high water flow, especially in winter, the water leaving the device may have an insufficient temperature even at maximum gas flow. In this case, to increase the water temperature, it is necessary to reduce the flow of water passing through the water heater.

With low water flow (in knob position 2 “Minimum flow”) and high gas flow (in knob position 1 “Maximum flow”), the water in the heat exchanger may overheat and, as a result, the burner will be turned off by the automatic control system of the gas water heater.

To turn it back on, you must close the hot water tap and then open it again. To avoid overheating of water, it is necessary to reduce the gas flow with handle 1 or increase the flow of water flowing through the device with handle 2 or the hot water tap.

Overheating of water in the heat exchanger leads to noise during operation of the Neva Lux 5611 geyser and causes the rapid formation of scale in the heat exchanger pipes and narrowing of their flow area, which over time will lead to a decrease in the efficiency of the unit and a weakening of the hot water jet.

Therefore, to reduce the temperature of the water leaving the device, it is not recommended to use a mixer, diluting hot water with cold water.

If the water in the water supply is soft, you can use a mixer to regulate the degree of water heating.

When there is hard water in the water supply, to regulate the degree of water heating, it is recommended to use the gas flow regulator knob and change the water flow using a hot water tap.

It is unacceptable to use a water mixer with hard water, since overheating of water in the heat exchanger leads to faster scale formation in the heat exchanger pipes and their clogging, which over time can lead to a weakening of the hot water stream and a decrease in its heating temperature.

The amount of scale formed is proportional to the increase in the temperature of the water leaving the apparatus.

To reduce the intensity of scale formation, set the gas tap control knob to a position that ensures water heating no higher than 60C.

Replacing batteries

Batteries must be replaced while the device is not working.

When the batteries are discharged, it is necessary to install new (2 pcs.) size LR20 into the battery compartment, in accordance with the polarity indicated on the inside of the compartment cover.

A sign of battery discharge is the absence or significant weakening of spark discharges between the spark plug and the burner after water begins to flow through the apparatus (at a flow rate of at least 2.5 l/min).

User opinions

“We installed an Oasis turbocharged gas water heater in the apartment two years ago, the model functions without leaks or malfunctions. It turns on when the tap is opened, even with low water pressure, heating takes no more than 10 seconds, and serves two points: in the kitchen and in the shower. It works directly from a regular power supply, there is no need to purchase batteries, however, it does not start when the lights are turned off. Like all gas water heaters, it is economical, fuel consumption is insignificant, combustion products are removed forcibly, and the noise is quite tolerable. The disadvantages include a sharp increase in water temperature when opening the second tap, albeit short-term.”

Igor, Yekaterinburg.

“I have been using the Oasis electric boiler with a capacity of 50 liters for more than a year, I consider its quality and reliability to be fully consistent with the price, there have been no reasons to contact the Oasis for repair or warranty service. The insulated tank of the storage water heater holds heat well; the amount of water dispensed is quite enough for two people. I consider the only inconvenience that it takes a long time to heat up an empty tank - from 1 hour, I noticed that it is better to leave some of the hot water, so it reaches the desired temperature faster.”

Alexander, Rostov-on-Don.

“I live in a private house, there was a need to replace the column, the old one could not be repaired. I chose a gas water heater from the manufacturer Oasis, did the installation myself, and the standard diameter of the chimney was suitable. I would like to note such a feature of operation as the need for good traction; one day the pipe became clogged with debris and the equipment simply did not turn on. Also, for private homes, I advise you to buy the Oasis model with frost protection and a “winter-summer” mode; gas consumption is actually reduced by 50% in the warm season.”

Grigory, Chelyabinsk.

“I purchased an Oasis instantaneous water heater with automatic ignition for my dacha with the simplest functions and protection. The purchase was justified, there was no need for expensive repairs, the only malfunction during the three years of service was the ignition button. To preserve the resource, I advise you to drain the water from the heat exchanger in case of rare visits in winter, even with good insulation of the chimney.”

Eduard, Nizhny Novgorod.

“We bought an Oasis brand water heater with a 30-liter storage tank a year and a half ago, based on positive reviews and an affordable price. The boiler pays for itself, but when guests arrive, the water runs out too quickly; I think that for a large family it is better to purchase a more capacitive model. In automatic mode, the temperature inside the tank is maintained for up to 4 hours without consuming electricity.”

Irina, Moscow.

“I decided to buy an Oasis for an apartment with a family of 4 people, since it was not possible to install a groove. I spent a long time studying reviews of household appliances and settled on the Oasis Slim with an 80-liter tank; its performance turned out to be sufficient. I can’t call this option economical, but it covers the need for hot water. There are no complaints about the reliability of the boiler; I don’t see any external corrosion or leaks.”

Sergey, Ekaterinburg.

Price

Subtleties of setting up a gas water heater

After installing a geyser, all users are faced with the problem of correctly setting up the device. Factory indicators do not always correspond to natural conditions of use. In addition, an incorrectly configured device consumes more water, fuel and electricity, and also fails faster. Therefore, if you know how to properly set up a gas water heater, you can significantly save your family budget.

Algorithm for setting up a gas water heater

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

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

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

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

Note! Experts do not recommend heating water above 55°C. This is due to the fact that if the temperature is too high, scale will begin to form faster. Subsequently, it will clog the heat exchanger and device components.

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

The gas water heater clicks - how to solve the problem

Possible difficulties

When setting up a gas water heater, the following problems often arise:

• changes in water pressure in the water supply;
• water pressure too low.

The first problem can only be solved by replacing the valve or installing a pressure regulator. Otherwise, pressure drops will lead to increased wear of the device and its failure.

In the second option, the water heater will not even turn on. If the water pressure drops suddenly, you should call the city water utility and find out the reason. Perhaps this problem will be quickly resolved. If there is always low water pressure in your locality, you will have to purchase a pump that will help increase it.

Internal organization

The diagram above shows the design of a typical gas water heater, which is also typical for Oasis columns.

Let's look further at how the most common type of brand's flow-through chimney model with automatic ignition works.

When the tap is opened, water is supplied through the inlet pipe into the water-gas unit, which turns on the ignition and gas supply. As soon as it ignites, a signal is sent from the flame sensor to the electronic unit to stop sparking.

Next, the water passes through a coil rigidly fixed to a heat exchanger, which is heated by burning gas. The coil transfers heat to the flowing water coming out.

When the tap closes, the water-gas unit turns off the gas supply. The combustion stops and the column goes into standby mode for the water tap to open.

An important condition for the normal and safe operation of the column is the removal of combustion products through the ventilation chimney. If the hood is missing or insufficient, the draft sensor is triggered and the column is turned off.

An overheating sensor is responsible for timely shutdown of the column when the maximum temperature is reached. It is an important element of the column, providing protection against overheating

Maintaining the required temperature regime is an equally important condition for fire safety and long service life of the column.

Overheating negatively affects the condition of all elements, primarily the heat exchanger, which leads to their premature failure.

Features of setting up different models of water heaters

There are geysers on sale with different characteristics and features.

Some models are equipped with a “Winter-Summer” mode. In winter, the temperature regulator is set to the maximum position. In summer, the incoming water is warmer, so the handle is moved to a minimum.

Automatic speakers are equipped with a self-diagnosis system. If there is not enough pressure or a malfunction occurs, the operation of the device is blocked.

Note! If you are unable to independently configure the optimal operating mode of the device, call a service center specialist.

Setting up the Neva water heater

The control panel of the domestic gas water heater Neva is very simple. The right handle is used to adjust the water flow, and the left handle is for gas. You can adjust the water temperature using both handles.

If the left knob is set to “maximum flow”, the device will consume a lot of gas and the water will become hot. The right handle works in a similar way - if you set it to maximum, the flow of water will increase, but it will not have time to heat up very much.

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

2016-11-17 Evgeniy Fomenko

The optimality of its operation, the economical use of resources, and the longevity of its operation depend on the correct settings of the geyser. Let's consider the adjustment of devices that have two toggle switches on the front panel - water and gas regulators, the device type is semi-automatic.

Setting up any gas heater should begin with adjusting the water. The nominal value of this parameter is indicated in the technical data sheet supplied with the device, usually 6, 10, 12 liters. In order to correctly set the device to the required value, you need to open the hot water valve; it is important to comply with the condition - you should open only one tap if you have several water intake points. Using the water toggle switch, set the value corresponding to the nominal value. After setting, the tap closes.

But we must take into account the fact that the flow pressure of the main line is different for everyone and there are no general rules for setting it up.

Some experts advise that when the system pressure is weak, but the heater turns on, the water toggle switch should be set to maximum, and the gas switch should be gradually turned from minimum until a temperature that suits you is reached.

In order to adjust the gas supply to the device, you need to set the gas regulator knob on the front panel of the device to the minimum setting. After connecting to the power supply (for models such as Ariston and Electrolux), or installing batteries (Neva, Neva Transit, Selena, Ladogaz, Oasis, Junkers, Bosch Therm, etc.), you need to open the gas valve. Then you need to open the hot water tap, the water heater will turn on and start heating.

The next step is to use a temperature measuring device and set the gas regulator to such a position that the temperature difference at the inlet and outlet of the device corresponds to 25 degrees.

It should be taken into account that heating does not occur immediately; you should wait a while. During subsequent operation of the column, the temperature at the outlet of the device is changed using a hot water valve. By turning on a larger flow, it decreases, and a smaller flow increases.

If after the above steps you are not satisfied with the set temperature, changes must be made only using a water toggle switch. It should be taken into account that to increase the service life of the column, it is not recommended to set the temperature above 50 degrees.

Instantaneous water heaters are quite inertial; when turned on, do not expect a hot stream to flow immediately; you should wait for some time.

Conversely, if you turn on hot water in the tap, it will become hot after a while

If a short time passes between turning off and turning on, you need to be careful not to put your hands under the tap so as not to get burned, since after turning off a certain amount of liquid remains in the system. Inertia should be taken into account when setting the temperature in order to obtain the nominal difference at the input and output; there is no hurry here; it is necessary to accurately select the appropriate position of the regulator when the result does not change for several minutes.

When the water heater runs on liquefied gas and the pressure does not correspond to the nominal pressure, it is adjusted in front of the nozzle. To do this, remove the casing, loosen the locking screw, and connect the pressure gauge to the measurement pipe. Next, remove the seal from the adjusting screw, turn on the column, setting the regulator to maximum, and open all hot water taps. The pressure is adjusted using the adjusting screw. This procedure should be performed by a specialist.

Upper center knob for Winter-Summer mode

Some devices, such as Ariston, Oasis, Dion, Vector JSD20-W, etc. have a winter-summer mode, are equipped with a temperature corrector, on the Ariston column it is located at the bottom, on the Dion, Oasis - on the front panel. Depending on the season, the knob is set to the “plus” position in winter and “minus” in the summer. This option allows you to optimally use resources.

Let's consider the method of setting up an automatic gas heater using the example of Ariston fast evo ont b 14, JUNKERS Bosch WR. The main difference is that there is only one control toggle switch built into the control panel - adjustment of water temperature and power, which is also an on-off control. Turning the knob clockwise increases the temperature, counterclockwise decreases it.

When the device is turned on, self-diagnosis of the gas-water unit and other dispenser systems occurs. In the event of a malfunction, the device is locked and the red LED lights up. Before turning on for the first time, it is necessary to adjust the gas pressure at the inlet. To do this, you need to close the gas valve, loosen the screw in the gas block and insert a pressure gauge into the gas pressure tap. Then open the gas tap, turn on the water heater, opening the water outlet and make sure that the pressure corresponds to the specified figure in the instructions.

To adjust the maximum and minimum values, you need to do all the above manipulations, then remove the batteries, put the microswitch in the off position, and insert the batteries into the compartment. Open one hot water valve, turn on the microswitch, adjust the maximum pressure on the burner using the orange screw. Then turn it off again, adjust the minimum in the same way, move the microswitch to the off position, if the indicator lights up orange, it means the settings are saved.

Oasis instantaneous water heaters

Gas instantaneous water heater Oasis SG-20

The instantaneous type of water heaters has become widespread. The key feature of this model is that water will be heated even at low pressure in the water supply system.

According to user reviews, the Oasis instantaneous gas water heater has a number of advantages:

1. The device turns on only when the water is turned on. This helps save energy resources.
2. Functions regardless of electricity, because its operation is carried out using replaceable batteries.
3. Depending on the season, you can choose the heating mode.
4. The device is designed according to a special design that helps reduce costs.

How to adjust the gas water heater

The need to install a column may arise for many reasons. However, every owner of the device faces a typical problem: incorrect settings of the gas water heater at the connection stage leads to incorrect operation. As a result, the expected results are not met, and further use of the device leads to malfunctions. Appliance manufacturers try to get around this problem by providing an automatic adjustment system. The obvious solution had no effect: not every buyer is willing to overpay for complex equipment with an unclear operating principle. Many people prefer to spend some time learning how to set up a gas water heater themselves.

Preparing to set up a water heater

Adjusting the gas water heater does not take much time, but requires careful approach and attention. The painstaking process can raise a lot of questions for an unprepared person. Before adjusting a household appliance, you need to turn off the water flow to a minimum, because these are the indicators provided for in the operating instructions . Neglecting these instructions leads to the fact that all subsequent settings will not be accepted by the system or will lead to a result far from the expected one.

In most cases, the required flow rate is equal to eight, ten or twelve liters, but there are some deviations, both upward and downward.

It is important to consider that it is possible to adjust the geyser to exact values ​​only when using one mixer with hot water.

After completing the described procedure, turn off the supply valve and proceed to the next step. As for liquid, it is necessary to set the minimum value for gas. These settings are necessary to bring the water heater to the nominal values ​​​​prescribed for it.

At this step, it is recommended to connect the electronic equipment necessary for the geyser. Contrary to expectations, this is one of the simplest operations. It includes:

• connection of several wires;
• installation of batteries or consumable batteries used to ignite fuel.

New models may be equipped with sophisticated equipment with screens and sensors. Such a system independently performs all settings and does not require user intervention.

Starting the device and adjusting the temperature

Having prepared the equipment properly, you can carry out the first launch. First of all, you need to open the hot water tap and examine its outlet temperature. The obtained indicators should exceed the input value by twenty-four to twenty-six degrees.

If the liquid takes too long to heat up, or the heating does not reach the required temperature at all, adjust the gas knob by turning it to a satisfactory state.

In some systems, the handle is replaced by a toggle switch; it also must be brought to a certain position to obtain the desired result.

The same results can be achieved by adjusting the volume of water supply. The higher the level, the colder the liquid, and vice versa. This is due to the elementary law of physics - the greater the water flow, the slower it heats up. When relying on this method, it is necessary to take into account that the temperature of stagnant water may differ from expected, since the liquid has time to warm up.

How to solve a problem

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

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

Setting details

When setting up a gas water heater, you need to remember that the liquid cannot reach a comfortable temperature instantly. Don't try to do all the settings for a few minutes - it will take quite a long time. After each stage, you will have to start all over again, namely, drain the waste water and let it heat up or cool down with fresh water. In general, such manipulations can last for half an hour, and sometimes longer. An experienced professional will take much less time.

When setting up equipment from different companies, for example, a Neva gas water heater, you may encounter two difficulties:

• fluid pressure;
• weak water pressure that does not cause a reaction from the device;

Blood pressure problems

Pressure fluctuations can be caused by a variety of conditions. When faced with this, there is no need to panic; the situation can be easily solved by replacing a worn valve or purchasing a special pressure regulator. This malfunction can cause serious damage and accelerate equipment wear.

Replacing the membrane in a gas water heater

What malfunctions do the Neva Lux dispenser have?

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

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

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

L0. Insufficient fuel supply.

Causes:

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

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

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

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