Koreastar is renowned for its commitment to adapting products to market conditions. The boilers distributed in Russia tolerate subzero temperatures well (up to -40 degrees) with a minimal increase in gas consumption. This makes the devices economical in cold winters.
Features of Koreastar boilers
The company manufactures double-circuit units designed to accomplish two tasks - home heating and hot water supply. Floor standing units are available for wall mounting. The liquid for heating the home and for household needs is prepared separately for most devices. To neutralize the associated heating slowdown, the products are equipped with a three-stroke solenoid valve.
When the coolant is cooled to +5 degrees, the gas boiler is turned on by means of automation. This prevents the water from freezing in the pipes. Decrease in gas pressure (up to a certain limit: minimum - 4 mbar) and changes in the mains voltage do not affect the stability of the boiler.
Specifications
The power of Koreastar gas boilers, depending on their design and the volume of prepared water, varies from 10 to 40 kW. Parameter setting and operation control are carried out remotely by means of the remote control. The microprocessor board withstands voltage surges well. Also, the boilers are 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 model of the Coreastar boiler 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 produced in versions with a closed and open combustion chamber, others - only in the first version.
Advantages and disadvantages
When choosing a Coreastar boiler, buyers are attracted by the acceptable cost of these devices and the price-quality ratio: few can afford to buy a German-made unit. Well-coordinated work in the conditions of cold winters inherent in a significant part of the territory of Russia is also of interest to the owners of private houses.
Other advantages of these devices are:
- low noise level from a running pump;
- high-quality automatic control unit;
- climate control option;
- optimization of gas supply (initiation - when the burner ignites, termination - when it goes out), which saves fuel;
- the use of a device that prevents smoke from the premises;
- a mechanism that prevents the freezing of the coolant.
The downside is that sometimes voltage surges still cause malfunctions of the microprocessor board, despite the manufacturer's instructions on stable operation with drops within 15% on both sides of the nominal. You can prevent such incidents by installing an uninterruptible power supply.
When the owner of a boiler with a closed chamber turns on the device, he may encounter noise - this is due to the type of burner used. Such a unit should be installed in a separately equipped boiler room.
Installation and operation
The boiler connection diagram is given in the instructions.It is determined by the characteristics of the device of this model. Some units are volatile, others do not need power supply. In the first case, a voltage of 220 V with a frequency of 50 Hz must be supplied to the connection point. Do not use tees, extension cords, connect other devices to the source. If a specific model needs to be provided with liquefied gas, a changeover is carried out by inviting a foreman.
In the boiler room, supply ventilation must be provided using equipment that creates a continuous movement of air flows. The use of gas fuel imposes a ban on the storage of chemically active and fire hazardous compounds and materials in the room where the boiler is installed. Do not place the unit next to a window, flight of stairs or in a wall opening, and do not place heaters and air conditioning devices next to it. In case of malfunctions, an error code is displayed on the display (the decoding of the numbers is given in the instructions).
Selection rules
When choosing a boiler, you first need to calculate what power is required to service the dwelling. The roughest method is based on area: it is assumed that 1 kilowatt of energy is needed for every 10 square meters. To achieve greater accuracy of calculations, it is necessary to take into account the climatic features of the region where the dwelling is located, the material of the walls and the influence of various sources of heat loss. The manufacturer indicates to work with what dimensions of the premises this or that model is designed with a certain power value.
Products equipped with a bithermal heat exchanger heat the liquid faster, but do not last as long as versions with two insulated coils. Heating a living space of 300 m2 requires 3 cubic meters of gas per hour. With smaller rooms, the consumption will be lower. Using economy mode cuts spending by almost half.
Popular models
The actively positioned lines are Buran and the parapet non-volatile President. But earlier series continue to sell: Ace and Premium include closed chamber models (Turbo) and open wall units (Atmo). The Bravo Turbo range only includes closed chamber units designed to be placed on the floor. The company also produces indirect heating boilers that are connected to a floor-standing or suspended boiler.
Premium 16E
The 16E mark in the name means that the maximum power of the unit is 16 kW, it has a closed combustion chamber and is placed on the floor. As with other manufacturers, the name of a particular boiler model informs about some of its characteristics. The number denotes the power indicator, letter A accompanies mounted boilers with an open chamber, and E - floor-standing boilers with a closed one. In Eco mode, the 16E consumes approximately 8.15 kW. It will effectively heat 160 m2 of living space. Boiler weight - 32 kg.
The efficiency of the devices of the Premium line is 93.1%. All of them are equipped with two heat exchangers: the one that works for heating is made of copper, and the one that warms water for domestic needs is made of steel. Performance allows you to prepare a shower at a cost of up to 13 liters per minute. Adjustable parameters are displayed on the LCD screen. The bypass valve protects the device from water hammer during pressure surges. Premium line models consume both natural gas and LPG.
Koreastar ace
This series is sharpened for the fastest possible water heating. The devices have a bithermal copper heat exchanger. When operating in water heating mode, even low-power versions show a capacity of 10 liters per minute. The boilers have a built-in bypass (bypass), which makes them suitable for use with radiator equipment equipped with temperature controllers. The efficiency of the models is in the range of 90-91.2%, the power is in the range from 10 to 32 kW.
Koreastar boilers are well suited for servicing premises up to 320 m2, also providing hot water supply.The devices are equipped with blocks that ensure operational safety: protection against freezing of the coolant, against water hammer, anti-blocking of the main components.
