The gas boiler Navien is a profitable acquisition in light of the sharp rise in price of imported heating equipment. Korean heaters are 30-40% cheaper than European counterparts. Moreover, they are in no way inferior to the "Europeans" in terms of build quality and reliability.
About company
Korea has long been famous for high-quality electronics and household appliances, and heating equipment was no exception. NAVIEN is a gigantic enterprise specializing in the production of gas and diesel fuel boilers. Accessories are made in Korea and Japan. Assembly - only in Korean factories. Previously, the company supplied its products to the markets of the United States and the Pacific. Since 2007, promotion began in the European markets. Today Navien is actively supplying its products to Russia.
Most common problems
Often the cause of the malfunction is the poor quality of the coolant or gas. Error codes help you solve problems. Here are the most common malfunctions that can happen with Korean gas equipment:
- Overheating.
- No flame signal.
- Faulty fan.
- Damage to the control board.
- Short circuit in the duct sensor circuit.
Error Codes
Despite the saturation with electronics, Korean heaters are functional, like any equipment, they can break. Start-up and operation do not always go smoothly - problems may occur during the process, and digits appear on the display - error codes. Code decryption can be found in the instruction manual. Common problems:
- Error "01". May occur due to clogging of the system or malfunction of the pump.
- Error "02". The flow sensor of the heating system has tripped. There are several reasons:
- air has entered the system;
- clogged filter for coolant at the inlet;
- there is a leak;
- the sensor is broken.
With the error "02" hot water disappears. The water temperature rises sharply and then drops. It is likely that in the DHW system there is an air congestion. It appears due to low pressure, poor operation of the circulation pump, breakdown of the duct controller. In this case, you need to adjust the pressure and bleed air from the system.
- "03". The flame sensor worked - he "did not see" the fire. The reasons:
- low gas pressure;
- fired ignition electrodes;
- poor gas quality;
- the sensor is broken or a break in the electrical circuit conducting its signal.
- "ten". Incorrect combustion products. The reasons:
- the turbine is broken;
- the pressure sensor is not connected correctly;
- the chimney is clogged;
- excessive pipe length.
It happens that there are no problems with the chimney - perhaps the signal is caused by gusts of wind. Then the reason is in the chimney - you need to redo it. To temporarily remedy the situation, you can remove the hose that supplies air. But this is done only as a temporary measure.
Important! It is recommended that when installing the boilers, the chimney is brought out to the leeward side.
All modifications of Navien are reliable, but the duration of their operation largely depends on how the installation was carried out, how the maintenance is carried out and whether the settings are correctly set.
Differences Navien from analogues
The Korean manufacturer is among the few using their own developments. The brand does not release modified or slightly improved versions - each new modification is worked out to the finer points. Among the structural advantages it is worth noting:
- Remote control through iOS and Android systems. This is for the SMART TOK series.
- Modulated burners. The noiselessness of work depends on them, they are responsible for maintaining a temperature that is comfortable for a person.
- Thanks to voice prompts, the operation and configuration of devices are simplified. If the user is poorly informed how the device works, voice prompts and error codes will help him.
- Corresponds to our conditions - a possible decrease in pressure, power surges in electric networks, pressure drops in gas pipes.
- Self-diagnosis. The device itself determines its “diseases” and notifies the user about them, displaying an error code on the display.
The Korean manufacturer, taking into account possible risks, created safe and easy-to-use equipment. If you take a look at the statistics of reviews, it becomes clear - consumers managed to evaluate the quality of heat exchangers and burners, as well as the smooth operation of Korean heaters. Only 2% of customers turn to service centers, and even then, the causes of problems are usually the wrong connection or operation errors. So that the boiler does not create problems, you need to connect it correctly and configure it correctly. It is also important to know how to use gas equipment - for this, instructions are attached to each piece of equipment. Also included is a passport and wiring diagram.
Benefits
The brand positions its heating equipment as optimal according to the “price-quality” formula. Boilers "Navien" can be used for heating a private house, apartment, industrial premises. Their advantages:
- Resistant to voltage drops. His jumps often lead to equipment failure. The Koreans provided reliable protection - they installed a Switched-Mode Power Supply control chip - it extends the voltage range to 165-300 V.
- Resistant to reduced gas pressure. Because of this, many modifications refuse to work, but not Navien - they continue to work at the lowest values.
- Nice, ergonomic design.
- Any boiler "Navien" - double-circuit. So, in addition to heating, its owner receives an addition in the form of hot water.
- A wide range of capacities is offered - you can choose the option for any room.
- Equipment owners can always get professional help at a service center. Contact details can be found in the attached documentation.
Are there any downsides?
- Cost compared to Russian counterparts is higher.
- I have to look for - in case of breakdown - imported components.
- Need regular maintenance.
But these flaws can be challenged. By paying more, you get a reliable device, forgetting about the unstable operation and other disadvantages inherent in many domestic boilers. With spare parts, the issue is also easily solved - they can be ordered at authorized Navien centers. And finally, regular maintenance - so without it, no equipment will last long.
How to turn it on?
You can enable the device in two ways:
- By remote control.
- Using the buttons on the control panel - you just need to click "Power".
After starting, the device starts working in the specified mode - which was installed earlier. To change the settings, you need to use the manual, and set the modes correctly. Before starting the device, it is installed, connected to utilities, fill the heating system with coolant - watching the pressure gauge.
Model Overview
Many users initially gave negative reviews about Korean boilers. The reasons are leaks in the connections. We had to eliminate them by replacing the gaskets - you need to buy a rather expensive kit. The second defect was related to the delayed start of the burner - the coolant managed to cool more than necessary. But the company corrected the shortcomings, today there are practically no such accusations against Navien. The brand produces three types of wall mounted heaters:
- atmospheric;
- condensation;
- turbocharged.
The consumer can purchase a gas boiler:
- Single or double circuit.
- Wall or floor. The latter are more bulky and require a separate room.
- With open or closed combustion chamber.
The widest assortment is in the line of mounted models. It is such devices that are in highest demand among Russian consumers.
Navien Atmo 24AN and others
Atmospheric wall-mounted apparatus Navien Atmo, replaced the less successful modification of Ace. It can operate at extremely low fuel pressure - 8 mbar, and water - 0.6 bar. In a series of 4 models of different power - 13, 16, 20, 24 kW. The heat exchanger for heating is made of copper. For domestic hot water - from stainless steel. Automatic control. There is a remote control. There is frost protection. Specifications:
- 24 kW
- Water heating in the heating system - 80 ° C.
- Circuit pressure (maximum) - 3 Bar.
- Efficiency - 86%.
- The maximum water temperature in the hot water supply is 60 ° C.
- Weight - 27 kg.
- Estimated cost 26-27 000 rubles.
- The heating area is 240 m².
Important! The system can only be filled with water - antifreeze is prohibited.
Deluxe 24K and other turbocharged modifications
The line of turbocharged modifications is presented immediately by three series Deluxe (13-40 kW), Prime and Smart TOK (13-35 kW). “Navien Ice Turbo” is an outdated model, it was replaced by Deluxe and Prime devices. Supercharged heaters have a closed firebox, and air is forced into it by a fan. Fan performance is regulated by the controller. In order for air to enter the chamber, a coaxial chimney is organized. Due to forced injection, turbocharged modifications are characterized by increased efficiency.
There are no more differences between the turbocharged and atmospheric versions. The package is exactly the same - expansion tank, pump, additional heat exchanger.
The Prime series, like the Deluxe Coaxial, has a closed firebox and all the usual elements of a turbocharged model. But in Prime there is an additional module - weather-dependent automation. Features of the 2-circuit wall-mounted boiler Deluxe 24K:
- Efficiency - 90.5%.
- 24kW.
auto ignition.
- The maximum heating area is 20 m².
- Natural gas consumption - 2.58 m3 / h.
- Dimensions (WxHxD) - 440x695x265 mm.
- Weight - 28 kg.
NCN 40KN and other condensing models
The principle of operation of a condensation heater is based on the use of both direct and latent heat generated during gas combustion. This allows you to achieve high values of efficiency - more than 100%. Condensation heaters are represented by the Navien NCN and NCB models. Their heat exchangers are made of stainless steel. Options are similar to the turbocharged versions. Difference - controller functions are expanded. For example, he can program work for the next seven days. NCN is represented by 4 boilers 21-40 kW, NCB also 4 models 24-40 kW. The air is forced - through a coaxial or separate chimney. For example, the characteristics of the NCN 40KN:
- 40.5 kW.
- Two circuits. Wall installation.
- Closed firebox.
- Auto ignition.
- It weighs 38 kg.
- Efficiency 107.4%.
- The maximum heating of water in hot water is 65 ° C.
LST 30 KG and other outdoor models
The brand represents a line of floor boilers from four series - LST, LFA, GA, GST with a capacity of 13-60, 13-40, 11-35 and 35-60 kW, respectively. Each of the presented samples is a universal floor apparatus capable of working both with natural gas and diesel fuel. Floor versions, no less than the wall ones, are saturated with automation. For example, the characteristics of LST 30 KG:
- 90% efficiency.
- Weight - 45 kg.
- 30 kW
- The heated area is 300 m².
- Auto ignition.
- Volatile.
How does Navien Ace TURBO work?
For example, consider the description of the operation of a turbocharged heater. Such a device is not afraid of low fuel pressure or power surges. He will heat any area. Along the way, heats the water - there is a second circuit. DHW heat exchanger - steel. It is much cheaper than copper counterparts. Lack of power - due to insufficient thermal conductivity of the steel, it is possible to compensate - turbocharging of the burner helps. Such devices easily compete with analogues having copper heat exchangers.
The turbo heater monitors the temperature of the coolant - if it drops below plus 10 degrees, the circulation pump is turned on. He drives water, preventing the formation of ice crystals. When the temperature drops below plus 6 degrees, the burner lights up - it will heat the coolant to +21 degrees.
Turbocharged devices are available in two versions, the second - with a coaxial chimney “Navien Ice Turbo Coaxial”. It is advantageous to install it in rooms where it is impossible to ensure the normal supply of oxygen. Coaxial chimney takes air from the street.
Reviews
Ace Coaxial 24k: Nikolai Ts., Vyshny Volochek
The main advantage of the "Korean" is the cost. But there is a drawback - it makes noise. Having learned how much it costs - 26,000 rubles, I immediately bought it. This, of course, is less than the Germans ask. Connected to a warm floor. Heats the water quickly. But there is a nuance - it works either for heating, or for heating water. But the water is hot! And not intermittently, like others. Elementary controls - just four buttons. In general, the main minus is the noise, I will make a closet.
Ace TURBO Coaxial: Eduard L., Gorodets
It has been working for five years. It is convenient to use - there is a remote control. Two circuits. Power - 16,000 watts. Saving gas consumption. Another plus is high performance. The heat exchanger is steel, but the disadvantages of such a solution are compensated by the turbo system. I am dissatisfied with the noise - the sound is too loud. And I would like the cord for the remote control more authentic.
Navien products have an optimal price-quality ratio. And if you still evaluate the technical characteristics of Korean boilers, then we can conclude - they are the best option for heating a private house.