A private heating system in a private house is much preferable to connecting to a central heating system.
Dependence on suppliers, rising tariffs, worn-out networks and other problems disappear.
Installing your own boiler requires a certain initial investment, which subsequently pays off with noticeable savings on heating the house.
There are high-quality and relatively inexpensive gas devices that provide heating and hot water for domestic needs.
One of these units is the Navien Ace boiler, which should be considered more closely.
Series of gas boilers Navien Ace
The Navien boilers of the Ice (Ase) series are a family of gas by-pass units manufactured by the South Korean company KyungDong NAVIEN.
They provide heating for the dwelling and in parallel supply it with hot water. A feature of Navien equipment is specialization in Russian conditions, climatic and technological.
It is possible to work at low pressure of gas and water, resistance to drops and sudden surges in pressure.
In addition, there is a protective system that compensates for voltage drops in the power supply network up to 30%.
In addition, the company's pricing policy is such that the cost of Navien boilers is about 2 times lower than European equipment of the corresponding capacity. Such advantages are highly appreciated by users, the demand for Navien units is stable and is gradually growing..
IMPORTANT!
Incorrect operation or difficult operating conditions can damage the boiler in a short time. This is not a consequence of poor build quality, but the result of insufficient attention and rejection of proper measures to create optimal working conditions.
Error codes
Despite the richness of electronics, functional Korean heaters, like any other equipment, can break down. Start-up and operation do not always go smoothly - during the process, malfunctions may occur, and numbers appear on the display - error codes. The explanation of the codes can be found in the instruction manual. Common problems:
- Error "01". May be due to a blockage in the system or a pump malfunction.
- Error "02". The flow sensor of the heating system has worked. There are several reasons:
- air has entered the system;
- the filter for the coolant at the inlet is clogged;
- there is a leak;
- the sensor is broken.
At error "02" hot water runs out. The water temperature rises sharply and immediately drops. It is likely that there is an airlock in the hot water system. It appears due to low pressure, weak operation of the circulation pump, breakdown of the flow controller. In this case, you need to adjust the pressure and bleed the air from the system.
- "03". The flame sensor has triggered - it "did not see" the fire. The reasons:
- low gas pressure;
- the ignition electrodes are dirty;
- poor gas quality;
- the sensor is broken or the electrical circuit that conducts its signal is broken.
- "10". Combustion products are not discharged correctly. The reasons:
- the turbine is broken;
- the pressure sensor is incorrectly connected;
- the chimney is clogged;
- excessive length of the branch pipe.
Sometimes 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 correct the situation, you can remove the air supply hose. But this is done only as a temporary measure.
Important! It is recommended when installing boilers to lead the chimney to the leeward side.
All Navien modifications 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 set correctly.
What models and what capacity exist
The Ace series consisted of the following models:
- Ace Atmo
- Ace turbo
- Ace Turbo Coaxial
The Atmo models had an open (atmospheric) combustion chamber and needed an efficient smoke extraction system.
Their efficiency was noticeably lower, but this was successfully compensated by installing a copper heat exchanger, which has a higher productivity compared to stainless steel assemblies..
The Turbo range featured a closed combustion chamber and turbocharging - a special fan supplied fresh air, increasing combustion efficiency and increasing draft in the smoke exhaust system.
A Korean or European (coaxial) chimney model was used to evacuate the gases.
The first option is two separate pipes - one for air supply, the other is a chimney.
A coaxial chimney is a pipe-in-pipe system where a chimney is installed inside and an air supply pipeline outside.
The power of all models was 10, 13, 16, 20, 24, 30 kW, etc. The most popular models are 16k and 24k, which are optimal for servicing a private house..
Specifications
The technical characteristics of almost all models (with the exception of the Atmo series) are similar and differ only in the power of the unit.
It corresponds to the heated area - 13 kW boilers are capable of serving 130 m2, 24 kW - 240 m2, etc.
For ease of consideration, the main parameters of the Ace series boilers should be summarized in the table:
| Parameter | Ace | Ace coaxial | Ace deluxe | Ace ATMO |
| Boiler type | Gas wall double-circuit | |||
| Combustion chamber type | Closed | Open | ||
| Efficiency | 91,2 % | 86 % | ||
| Heat output of the boiler in terms of RH | 9-16 kW | |||
| Primary heat exchanger material | Stainless steel | Copper | ||
| Heating medium temperature in the heating system | 40°-80° | |||
| DHW temperature | 30°-60° | |||
| Control type | Electronic | |||
| Power supply voltage | Single-phase, 230 V, 50 Hz | |||
| Weight | 28 kg | 26 Kg | ||
| Case dimensions | 440x695x265 mm | 430x720x340 mm | ||
The difference in performance is solely due to the type of combustion chamber and all associated design features.
It should be noted that the 16 kW models are a complete analogue of the 24 kW samples with reduced software capabilities, which provides a large margin of safety for the units.
Let's take a closer look at the main advantages of this series.
If you leave your home for a few days and do not want to heat it during this period for the sake of economy, you do not need to worry about the water in the pipes freezing. The system will operate in economy mode so that when you return home, you can start the boiler at full capacity without any problems.
Another undoubted plus of the NAVIEN ACE 24k boiler is the presence of a modulated turbocharging system. In each unit, a special fan is installed directly under the firebox, which responds to changes in air pressure. The ACE 24k Turbo model is equipped with an APS sensor, which starts the turbocharger fan when additional air supply to the combustion chamber is required.
Moreover, the amount of air increases with an increase in the amount of fuel. This design feature provides the most efficient gas combustion with the release of the largest amount of thermal energy. In this case, the heat loss, which entails the removal of exhaust gases, is reduced to a minimum.
The engineers' decision to incorporate a turbo fan into the ACE 24k had a number of positive consequences. The efficiency of the unit has increased significantly. This indicator for models with a steel heat exchanger has reached the level of similar units with a copper heat exchanger.
By the way, the presence of a steel heat exchanger is a definite plus of the design.The steel element is much more resistant to rust than copper. Naturally, such devices last much longer.
As already mentioned, ACE 24k Coaxial is able to maintain stable operation even with sudden power surges. The engineers managed to achieve such results thanks to the introduction of the SMPS chip. It protects the boiler against voltage surges within 30% of 230V. SMPS allows the unit to operate without interruptions and abrupt stops. Naturally, this affects the durability of the device. At the same time, the risk of breakdowns due to unstable power supply is practically reduced to naught.
The NAVIEN boiler is a versatile equipment that heats the room even with a low inlet pressure in the gas pipeline system (up to 0.1 bar). If your apartment has a problem of poor water pressure, you can safely purchase a Korean unit that will provide you with a coolant under any conditions.
Another plus of this model is a special room heating technology. Its essence lies in the fact that the boiler is constantly adapting to the temperature conditions in a particular room. The device is completed with a remote control equipped with a thermal sensor. This innovation makes it possible to optimize fuel consumption, thereby saving your family budget.
At the same time, using the data provided to the system by the sensor, the optimal temperature is maintained in the apartment or house at a user-specified level. The buyer who purchases the NAVIEN ACE boiler must count on the fact that when connected to bottled gas, the system will consume within 2.15 kg / h.
Among the technical features of the unit, the following are worth highlighting:
- Power - 24kW;
- Efficiency at the level of 90.5%;
- Coolant temperature in the heating and hot water system: 40-80 and 30-60 degrees Celsius, respectively;
- Unit dimensions: 695x440x265 mm.
Summing up
The NAVIEN ACE 24k boiler is a universal solution for providing a home with hot water and heat. This technique has already proven to the market that it fully justifies its cost. Reliability and high performance are the main advantages of ACE 24k from NAVIEN
At the same time, an important advantage of the unit is its minimalist, attractive design that can be combined with any interior. By purchasing the device in white color NAVIEN ACE 24k Coaxial White, you can install it anywhere, be it a bathroom, utility room or a separate boiler room
This technique is unpretentious in everyday use. In the event of any malfunction, the NAVIEN ACE 24k will inform the owner about it. Using a similar instruction NAVIEN ACE 24k, you can easily determine the cause of the breakdown. If you are not sure that you will be able to avoid any malfunction in the future, it would be wise to call a service center specialist. Practice shows that for those consumers who do not do their own repairs, but prefer to contact professionals, the unit works much longer.
Advantages and disadvantages
It is customary to refer to the advantages of Navien Ace boilers:
- The optimal combination of price and quality.
- Environmentally friendly process.
- Simplicity and convenience of adjustment and setting of operating modes.
- Adaptation to Russian conditions, the ability to operate on unstable indicators of gas pressure, water, power supply voltage.
- Simultaneous provision of heating and hot water supply.
- Long service life without service checks.
The disadvantages of Navien Ace boilers are:
- Dependence on the availability of electricity, gas and water.
- High noise level.
- Only original spare parts are suitable for repairs.
- The instability of the structure to the effects of hard water.
Most of the shortcomings are not the result of errors or defects during assembly, but rather are related to design features.
They are inherent in almost all gas boilers, regardless of the manufacturer.... Electromagnetic softeners or other suitable equipment should be used to avoid the formation of lime deposits caused by excessive water hardness.
Where is used
Gas double-circuit boilers Navien of the Ace series are designed to organize heating and hot water supply of residential premises or offices of the corresponding area.
This limits the scope of use of these units, although they can be installed in any premises. The main task is to match the serviced area with the capabilities of the equipment and the availability of all the necessary resources - gas, electricity and water (heat carrier).
NOTE!
In addition to the area, it is necessary to take into account the volume of the room, which may be too large for this model of the Navien boiler. The product passport indicates the maximum volume possible for the normal functioning of the system.
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 surges. Its jumps often lead to equipment failure. The Koreans have provided reliable protection - they installed a Switched-Mode Power Supply control chip - it expands the voltage range to 165-300 V.
- Resistant to low gas pressure. Many modifications refuse to work because of this, but not Navien - they continue to work at the lowest values.
- Nice, ergonomic design.
- Any boiler "Navien" is a double-circuit one. This means that, in addition to heating, its owner receives an addition in the form of hot water supply.
- A wide range of capacities is offered - you can choose an option for any room.
- Equipment owners can always get professional assistance at the service center. Contact details can be found in the accompanying documentation.
What's in the box
The unit includes the following elements:
- Heat exchangers (primary and secondary, primary can be made of copper or stainless steel, secondary - only made of stainless steel).
- Remote control panel.
- Circulation pump.
- Expansion tank.
- Three-way valve.
- Safety valve.
- Traction sensor.
- Automatic air vent.
- Connecting pipelines, other structural elements.
In addition to the main elements, the boilers are equipped with mounting brackets and other additional parts.
Device
The main structural element of the Navien Ace boilers is a primary tubular heat exchanger connected to the combustion chamber.
In the upper part there is a chimney connected or combined with the air supply line. An 8-liter expansion tank is located on the left side of the housing, under which a three-way valve and a circulation pump are installed.
It provides movement of the heat carrier and hot water through the system... Passing through the heat exchanger, the coolant receives a high temperature.
The cold stream is then mixed using a three-way valve to achieve the desired system temperature. After that, the flow is removed from the boiler and sent to heating devices - radiators, convectors, etc..
Connection instructions
The installation of the boiler is not difficult - it is necessary to install the anchor bolts and hang the unit on the wall.
It is recommended to install noise-dampening elastic spacers between the cabinet and the wall. Do not mount the equipment on fragile or weak structures - plasterboard partitions or other similar surfaces.
You need a solid brick or concrete wall capable of supporting the weight of the boiler (about 30 kg).
The communications should be connected to the appropriate branch pipes. It is necessary to carefully monitor the conformity and tightness of the connections.
The main attention should be paid to the connection of gas pipes. Check all connections for leaks with a soap solution.
In the presence of a common chimney, a separate connection of pipelines is used - the air duct is led out into the street through the wall, and the flue duct is connected to the common chimney of the house.
Coaxial chimneys are led out through the wall, which is much easier and more convenient for installation.
Download instruction
You can download the instruction here.
Differences between Navien and analogues
The Korean manufacturer is among the few that use their own designs. The brand does not release modified and slightly improved versions - each new modification is worked out to the finest details. Among the structural advantages, it is worth noting:
- Remote control via iOS and Android systems. This is for SMART TOK series.
- Modulating burners. The noiselessness of work depends on them, they are responsible for maintaining a comfortable temperature for a person.
- Thanks to voice prompts, the operation and configuration of the devices is simplified. If the user is poorly aware of how the device works, voice prompts and error codes will help him.
- Complies with our conditions - possible pressure drop, power surges, pressure drops in gas pipes.
- Self-diagnosis. The device itself determines its "diseases" and notifies the user about them by displaying an error code.
The Korean manufacturer, taking into account the possible risks, has created a safe and easy-to-use equipment. If you take an interest in the statistics of reviews, it becomes clear that consumers managed to evaluate the quality of heat exchangers and burners, as well as the uninterrupted operation of Korean heaters. Only 2% of buyers turn to service centers, and even then, the causes of problems are usually incorrect connection or operating errors. So that the boiler does not create problems, you need to connect it correctly and set it up correctly. It is also important to know how to use gas equipment - for this, instructions are attached to each unit of equipment. The kit also includes a passport and a connection diagram.
Major faults and solutions
Malfunctions of Navien boilers are usually diagnosed independently and are indicated on the display with a corresponding code. A signal from one or another sensor turns on a message about the problem.
The most common mistakes are considered:
- 02. Lack / insufficient amount of water in the system. The issue is solved by feeding the system or replacing the flow sensor.
- 03. Lack of flame in the combustion chamber. Indicates problems with the ignition system, or lack of gas.
- 05-06. Open or short circuit of the RH sensor.
- 07-08. Open or short circuit of the DHW sensor.
- 09. Fan failure.
- 10. Failure of the smoke exhaust system.
- 15. Problems with the control board.
- 16. Boiler overheating.
The solution to most problems is to replace the corresponding sensors or assemblies, and also to clean and remove deposits in the connecting pipes.
IMPORTANT!
It is not recommended to undertake repairs yourself. This procedure should be entrusted to specialists from the service center or other specialized organization.
Most common problems
Often the causes of malfunctions are the poor quality of the coolant or gas. Error codes help to cope with solving problems. Here are the most common malfunctions that can happen with Korean gas equipment:
- Overheating.
- No flame signal.
- Fan defective.
- Breakdown of the control board.
- Short circuit in the flow sensor circuit.
Price range
Prices for gas by-pass boilers Navien Ace range from 26 thousand rubles. (Navien Ace 13K Atmo), up to 32 thousand rubles. (Navien Ace-24K Turbo). It should be noted that these amounts are only the cost of the boiler itself, without delivery, installation, warranty agreement and other additional costs.
Stores carry out only sales, and warranty repairs and maintenance are carried out by service centers, a contract with which is concluded and paid separately. Many buyers believe that the warranty is automatic upon purchase, but this is a misconception..
NOTE!
The Ace series is discontinued. It is still possible to purchase such units, since a lot of them were brought to the regions of Russia. But the possibility of warranty service must be clarified immediately, otherwise you may find yourself in an unpleasant situation.
