The Korea Star gas boiler is a product of the South Korean company of the same name, not inferior in quality to the best European analogues. At the same time, Korean boilers are 20–30% cheaper than their competitors. KoreaStar is not the only gas equipment manufacturer in South Korea.
In Russia, people willingly buy heaters from various South Korean brands - Daewoo, Navien, Olympia, etc. They are united by a high level of production technology, affordable cost and adaptability to difficult Russian conditions. Coreastar is no exception - domestic consumers have managed to evaluate the endurance and reliability of the company’s boilers.
Premises requirements
The room in which gas equipment is to be installed should be equipped with fresh ventilation.
Moreover, door and window openings cannot be classified as such if they do not have devices that ensure constant air flow - fans, holes in the door leaf, etc. When the heater is put into operation, it is prohibited to carry out construction work in the room that could change the ventilation design, thereby affecting the volume of incoming oxygen. In the boiler room it is prohibited:
- Store flammable substances and materials.
- Store chemically active substances - chlorine, ammonia, acids, etc.
- Place heating devices and air conditioners near the boiler.
- Install equipment near stairs, in wall openings, near windows and emergency exits.
Power setting
After starting the device, you need to press and hold for 5 seconds. buttons to adjust the temperature to enter the setting mode. Adjust the gas pressure by decreasing and increasing the pressure using the DHW adjustment buttons. While the setup is in progress, a number will appear on the screen. This board designation is the minimum power value in percent: 44–54. When the pressure gauge shows the required pressure value, press the RESET button, the parameters will be saved.
When setting the operating power, set the gas pressure using the buttons that regulate the heating agent temperature. The power percentage will appear on the screen: 0–99. Having set the required value, press RESET, save the parameters, exit the settings mode.
Features of operation
KoreaStar boilers, being productive and reliable, have advantages and disadvantages characteristic of any equipment with a closed firebox:
- Noisy. The reason is the operation of the fans. With their help, air is pumped and removed from the coaxial chimney. A distinctive feature of all forced-air burners is noisy operation. It is advisable to install such heaters away from living rooms.
- The water in the hot water supply is heated separately from the coolant. A three-way solenoid valve increases the heating speed and ensures a uniform supply of water at any pressure in the water pipes.
- When the coolant cools down to +5 °C, the boiler automatically starts, preventing defrosting of the heating system.
- Energy dependence. The instructions for use of KoreaStar heaters say that they are capable of operating under voltage surges of up to 15% of the nominal value. But in practice there are problems, the controller board fails. Installing an uninterruptible power supply will help prevent breakdowns.
- Before connecting the device, you need to obtain permission and order design documentation from the gas service.
Design and principle of operation of Corestar boilers
Despite the name, Koreastar gas boilers have nothing in common with Korea. These are European boilers, designed specifically for Russian conditions.
Wall-mounted boilers Koreastar (Korea Star) have a classic design - a circulation pump, two heat exchangers, a closed combustion chamber, an automatic bypass valve, and safety groups. These devices can easily withstand voltage surges of 15% and have a flow capacity of about 13.6 liters per minute (DHW). They are designed to heat rooms up to 240 square meters.
Error codes and malfunctions
In case of any problem with the boiler, the user should first look at the instructions. Most errors are listed by the manufacturer. It’s just not always clear how to eliminate them. We recommend immediately rebooting the equipment:
- Press the reset key;
- Wait for the boiler to resume operation;
- Make sure the characters disappear from the screen.
If nothing has changed, start looking for a breakdown. The table below shows solutions for different problems.
| Fault codes | What do they mean | How to fix it yourself |
| A01 | The system does not report the presence of a flame. |
|
| A02 | A flame was reported, although there was no ignition. |
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| A03 | Overheating of equipment. Boiler operation is blocked. Temperature exceeds 90 degrees. | The thermostat has tripped. First of all, check it for serviceability. Bleed excess air from the system using Mayevsky valves. Run diagnostics:
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| A08/F10 | The heating circuit temperature sensor has failed. | Checking the sensor, its connections and contacts. In the event of a short circuit (SC) or open circuit, a new element is installed. |
| F05 | Incorrect operation of the gas removal system. | Inspect:
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| F11 | The hot water NTC temperature sensor has failed. | Error F11 appears, what to do:
If ignition does not occur when the DHW is turned on, inspect the three-way valve that switches heating between circuits. |
| F37 | Low pressure in the circuit (less than 80 kPa). | Make sure the pressure sensor and its wiring are in good condition. Inspect all connections and components for leaks. Any damage is sealed. Turn on the system's water supply. |
| F41 | The movement of the coolant is disrupted. The heat exchanger is overheating. | How to fix the situation:
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| F50 | The electronic board is not working. | Checking the grounding and board for breakdown. It is better to entrust repair and replacement of the control module to a specialist. |
Unfortunately, not all problems with Koreastar heating equipment are indicated by a code on the display. Users complain that the devices are sensitive to voltage surges, which often affects the control board. And this despite the manufacturer’s assurances of stable operation during any surges. Therefore, when choosing “Koreastar”, it is worth additionally connecting a stabilizer.
Experts recommend annual breakdown prevention. Clean the unit from dirt, scale, and carry out a technical inspection.
Specifications
The power of Koreastar gas boilers, depending on their design and the volume of water being prepared, varies from 10 to 40 kW. Parameter setting and operation control are carried out remotely via a remote control. The microprocessor board can withstand power surges well. The boilers are also equipped with a remote thermostat, whose function is to turn off water heating when the temperature reaches the desired level. The design uses German-made circulation pumps and a liquid crystal display.
The performance of a specific Corestar boiler model is indicated in the instructions. For the least powerful variations it is approximately 13 l/min. The heat exchanger is equipped with additional protection, due to which the unit lasts longer. Some types of boilers are available in versions with a closed and open combustion chamber, others - only in the first version.
Design Features
- 10–20 kW devices are equipped with a 24 kW copper heat exchanger, so when the DHW circuit is turned on, they are not afraid of extreme loads. Their water productivity is 13.6 l/min.
- Thanks to double protection of the heat exchanger, it does not overheat and its service life is extended.
- The combustion chamber is available in two versions - closed (PREMIUM E) and open (PREMIUM A).
- Economical fuel consumption.
- Equipped with LCD screen. Self-diagnosis.
- Modulated fire intensity.
- Equipped with a WILO pump (German production), an anti-blocking system.
- Frost protection system.
- Connecting a remote control, room thermostat.
Advantages of Korean equipment
- Does not respond to pressure changes in the gas line.
- High efficiency value, efficient fuel combustion.
- Wide range of models, there are wall and floor models, with one and two circuits.
- Stylish design. Compactness.
- Equipped with built-in fuses that guarantee the safety of the equipment in case of emergency situations.
- Convertible to liquefied gas, the kit includes jets.
- They can provide the house with hot water.
- Possibility to select the operating mode. Setting the temperature.
Model overview
KoreaStar ACE
The series is represented by 2-circuit heaters Atmo and Turbo, which differ in the design of the firebox. “Atmo” - a - turbocharged. In the first, oxygen for combustion comes from the room in which the equipment is installed, in the second, street air is pumped in. The atmospheric version is equipped with standard pipes with thermal insulation made of mineral wool, the turbocharged version is equipped with a coaxial chimney.
Atmo and Turbo have similar characteristics, the same power range - 10,000–32,000 W. Equipped with pressure gauges, manual control units, Wilo pumps, and an anti-blocking system. If necessary, you can connect a thermostat and remote control. The body color is white or silver. The heat exchanger material is copper. Equipped with bypass. Two levels of overheating protection. The cost is about 30,000 rubles.
As an example, here are the characteristics of a double-circuit device with a closed firebox (“Turbo”) Ace-24K:
- Heating capacity - 24,000 W.
- Efficiency - 91.2%.
- Area - 240 m².
- Volatile. There is automatic ignition.
- Gas consumption - 2.79 m³/h.
- Weight - 30.5 kg.
- Price - 30,000 rubles.
- Dimensions - 742x440x235 mm.
Turbo advantages:
- Work on different types of fuel.
- Anti-blocking 3-way valve.
- The special design of heat exchangers is “pipe in pipe”. Treated with anti-corrosion coating.
- Fire modulation.
The Ace Turbo 10–20 kW modifications have a secondary circuit power (DHW) of 10,000–20,000 W. And Atmo has 24,000 watts. Work guarantee - 2 years.
KoreaStar Premium
This is the most popular series. Wall mounted equipment with classic design. Equipped with two heat exchangers, a circulation pump, a closed firebox, a safety group, and an automatic bypass valve. Full adaptation to Russian conditions. Heating capacity from 16 to 40 kW. Capable of heating an area from 160 to 400 m². Protection is the same as Ace models. Controlled by an electronic unit.
There are 4 positions in the Premium line:
- Atmo - what distinguishes them from “Ace Atmo” is the LCD screen. 10,000–40,000 W.
- Turbo - equipped with a Wilo pump (white and silver).
- Turbo-K - equipped with a KoreaStar pump (white). Equipped with a powerful fan to remove combustion products. The devices were developed for apartments.
- Turbo-C - KoreaStar pump (white).
For example: an attachment with two circuits, a closed firebox, and a power of 24 kW. Heats a room up to 240 m². Characteristics and design features of Premium-24E TURBO:
- Efficiency - 91.2%.
- The copper heat exchanger is the primary one. Steel is secondary.
- DHW water heating is 35–55 °C.
- The capacity of the DHW circuit is 13.6 l/min.
- Equipped with an expansion tank and circulation pump.
- White body.
- Weight - 31.5 kg.
- Dimensions (HxWxD) - 742x440x235 mm.
Senator
The series is presented in two versions, both with floor installation and open fireboxes:
- Senator-D. Volatile.
- Senator-TP. Does not require power supply. Equipped with European automatic equipment. Heater material is cast iron. Power range - 10,000–60,000 W.
Equipped with electric ignition. If desired, connect an indirect heating boiler. Weather-compensating automatic equipment has been installed. Works in winter and summer modes. The screen displays information about current settings and error codes. The intensity of the fire is smoothly modulated. 9 powers - 25,000–60,000 W. 5 years of service guaranteed. The cost depends on the thermal power, estimated prices are 58,000–80,000 rubles.
Characteristics of Senator TP 25:
- Floor installation.
- One circuit.
- 21,000 W.
- Efficiency - 90%.
- Fuel consumption - 2.4 m³/h.
- Weighs 99 kg.
Buran
Only one model. This is a floor-standing, single-circuit, non-volatile device. Equipped with a steel heat exchanger, atmospheric burner and Italian automation. Efficiency - from 88%. Equipped with a draft stabilizer and a smoke temperature sensor. The coolant can be water that complies with GOST 21563-93. Maximum heating of the coolant is 95 °C. Can be converted to liquefied gas. The heat exchanger has a cylindrical shape and is equipped with turbulators. Power range - 7.5–100 kW. Moderate price - from 17,000 to 47,000 rubles.
If during ignition the coolant temperature is below 30°C, condensation may appear, which provokes corrosion processes. To avoid this, you need to ensure that the water temperature in the circuit does not drop to critical values.
Characteristics of Buran 35:
- Heating capacity - 35,000 W.
- Efficiency - 90%.
- Heats up to 350 m².
- Gas consumption - 3 m³/h.
- Weight - 104 kg.
- Dimensions (HxWxD) - 930x500x630 mm.
Bravo
A series of boilers equipped with an LCD display and two heat exchangers - copper for heating and steel for hot water. A range of powers - 10, 13, 16, 20, 24 kW. Hot water capacity - 13.6 l/min. Equipped with a 3-speed energy-saving circulation pump. The body is white. There is anti-blocking of the pump, protection against freezing and against water hammer. Characteristics of Bravo-10E:
- Heating capacity - 11,000 W.
- Two circuits.
- Heats up to 88 m².
- Heating/water supply temperature: 30–90°C/35–55°C.
- Efficiency - 91.2%.
- Maximum fuel consumption is 1.19 m³/h.
- Expansion tank - 6 l.
- Weighs 34.6 kg.
- Dimensions (HxWxD): 742x440x262 mm.
Solutions to Question 1
The boiler has a self-diagnosis system and fault signals appear on the display. Errors marked with the symbol A cause the boiler to block. In this case, the user must manually reset the boiler by pressing the RESET button. Errors marked with the symbol F cause a temporary shutdown of the boiler with automatic activation after the value that caused the error returns to normal values.
Accordingly, errors A01.
Corestar boiler error codes - troubleshooting instructions
Did the Corestar boiler show errors on the display? This means that the self-diagnosis system “detected” a malfunction. All modern heating equipment is equipped with automation - sensors that monitor the operation of each unit. Sometimes the user does not even need to contact the service center. It is enough to determine the meaning of the code and find the problem.
Specifics of application and operation
Judging by consumer reviews, Corestar boilers are productive and reliable equipment, which has its own certain disadvantages, which are inherent in all equipment with closed combustion chambers.
The model range of gas wall-mounted boilers from Koreastar has the following characteristics:
- High noise during operation is a consequence of the operation of the burner fans. Air intake and combustion products removal are carried out using a coaxial chimney, in a forced manner. All forced-air burners are noisy, so stations must be installed away from residential premises.
- DHW heating - hot water heating is carried out independently of the heating system. The presence of a three-way solenoid valve significantly increases the heating rate. A uniform supply of hot water is ensured, regardless of the pressure in the water supply system.
- Safety group - when the coolant cools down to a temperature of +5°C, the boiler automatically starts, preventing the heating system from defrosting.
- Connection to power supply - although the manufacturer indicates the ability of the equipment to operate despite voltage fluctuations in the network up to 15% of the rated power, practice shows that this is not always the case. The controller board can fail due to any surge in electrical current. Protection can be provided by the installation and installation of a UPS.
Tips and tricks for choosing
Coreastar boilers can operate at gas drops of up to 4 mBar and are resistant to voltage surges. The models are distinguished by stable DHW heating and are intended for domestic use.
Koreastar products should be selected for rooms with a maximum heated area of up to 320 m² and the need to provide hot water for domestic needs.
Reviews
Premium 24E: Raisa P., Dedovsk
I liked it for its capabilities and affordable price. Worked well, kept the temperature at the set level. But in the second year of operation, the pressure switch broke and was impossible to find. And it’s good that it wasn’t winter, otherwise we would have had to freeze.
Premium-24E Turbo: Leonid Zh., Kostroma
Works for two years. During this time, it showed an error twice - operation failure. It was fixed by rebooting. Before the start of the heating season, the hot water flow sensor broke, so they could not turn on the boiler: information about the hot water supply was constantly displayed on the screen. The repairman arrived two days later - due to workload - and replaced the spare part free of charge, under warranty. Pros: compact, hangs on the wall and doesn’t bother anyone. No need to build a chimney. Consumes little electricity. The downside is that it depends on the electrical network. It is difficult to regulate the water temperature with low pressure. There is a shortage of specialists; you have to wait a long time for a specialist.
The efforts of the manufacturer and its marketers were crowned with success - KoreaStar products have won their niche in the Russian market. Consumers are attracted by the affordable cost and reliability of Korean boilers. There are usually no problems with the operation of the equipment, but there are problems with maintenance and repair. This is due to insufficient coverage of the territory of the Russian Federation by service providers.
Gas boilers Koreastar Buran
There is only one unit in this series. The Korea Star Buran gas boiler is installed on the floor, it is single-circuit, does not depend on electricity and can work with open and closed heating circuits. Such units are called AOGV and are the simplest heaters. At the same time, they are very reliable and have earned a good reputation.
Floor models have a 5 year warranty.
Characteristics of Korea Star Buran:
- open combustion chamber;
- mechanical automation made in Italy (SIT);
- 15 power options from 7.5 to 100 kW.
The Buran model differs from the Koreastar Senator series in the heat exchanger material, which is made of steel. While in the Senator boiler the heat exchanger is made of high-quality cast iron. Buran can only run on natural gas. The gas pressure must be no less than 6 mbar, and the coolant pressure must be no more than 0.4 mbar.
Maximum temperature 90 degrees. When igniting, due to the fact that the coolant temperature is below 30 degrees, condensation may occur. This leads to corrosion, so the temperature of the water in the circuit should not be allowed to drop so low. Before the heating season, the device must be checked for serviceability, and if necessary, clean the heat exchanger and chimney.
- Content:
- Features and technical data of boilers
- Specifics of application and operation
- Tips and tricks for choosing
Despite its name, the Koreastar gas boiler has nothing to do with Korea.
It is developed and assembled at the Wilo plant. Moreover, this is practically the only model among all European equipment that was manufactured specifically for Russia, taking into account the peculiarities of operation in domestic conditions. The consumer is offered two basic wall-mounted Koreastar models - classic and bithermic type.
About company
KoreaStar is an enterprise founded in 2003. It has been on the Russian market since 2004. The company produces a variety of household and industrial equipment. One of the areas of activity is the production of gas heaters, which are sold all over the world. The brand supplies several dozen models of different designs and power to Russia. During assembly, Korean and European components are used that comply with ISO 900 standards. Korean Star works closely with the German company Wilo. The latter supplies circulation pumps to its eastern partner.
Installation
Before installing the device, you should make sure that it runs on natural gas. If you plan to use liquefied gas, you need to readjust the heater - this should be done by a specialist. A power supply with parameters of 220 V/50 Hz must be supplied to the installation site of volatile models. Deviation of parameters from the norm leads to decreased performance and reduced service life.
It is prohibited to connect other electrical appliances to the boiler power source. It is also prohibited to use extension cords and adapters when connecting. Violation of safety standards may result in a fire.
