The South Korean company NAVIEN is known to most Russian users for its high-quality boilers designed for heating and hot water supply of residential and industrial premises. Gas units make up a significant share in the total range of products manufactured by the company. Therefore, it is so important to familiarize yourself with its samples in more detail. The gas boiler Navien Deluxe is a typical representative of this class of equipment.
Criteria for choosing boilers Navien Deluxe
Before buying a suitable sample of boiler equipment, the following selection criteria are considered:
- power consumption, which determines the amount of energy supply costs;
- number of heating circuits, affecting the heating efficiency;
- functionality (heating and hot water);
- thermal power for hot water, selected for reasons of the same efficiency.
An important factor is the heating area declared by the manufacturer in square meters, which overlaps when using a specific model. When evaluating, it is also important to consider the ease of maintenance of the unit and its maintainability.
Features of boilers
Most of the samples of gas boilers Navien Deluxe adapted to Russian realities, so they work well in conditions of low pressure and voltage fluctuations. They provide mechanisms for automatically adjusting the voltage fluctuations within 30%. The presence of these features attracts the attention of users, and the low price only increases the demand for Korean units.
On the Russian market there are two-circuit wall models manufactured by the company that have two versions: turbocharged and atmospheric. Depending on the capacity declared by the manufacturer, they are able to heat spaces ranging from 30 to 400 m2. The presence of two circuits allows you to use them for heating and for heating water that goes to household needs. These units are capable of working both on natural and liquefied gas.
Advantages and disadvantages
The main advantages of units from Korea are:
- attractive ratio of cost and functionality;
- ecological cleanliness;
- multifunctionality;
- a large selection of options for controlling the operation of the unit;
- the possibility of self-diagnosis, which simplifies troubleshooting;
- almost unlimited service life.
The disadvantages of this equipment are the poor tolerance of impurity (hard) water, increased noise and dependence on the source of energy supply.
Specifications
The main technical indicators of gas boilers Navien include:
- type of fuel used - liquefied or natural gas;
- Efficiency, which in some models reaches 92 percent;
- thermal power in kW;
- maximum heating area in square meters;
- coolant temperature in degrees;
- the number of circuits involved (two pieces);
- bar pressure developed internally;
- temperature and pressure of hot water;
- DHW performance.
Also, the technical characteristics include the parameters of the power supply network (220 Volts, 50 Hz) and connecting dimensions.
Design features
The classic gas boiler from Korea consists of the following components:
- independent heat exchanger, considered primary and made of copper or stainless steel;
- the second heat exchange unit, which is additional to the first, is made on the basis of stainless steel;
- a combustion chamber equipped with a gas burner, as well as combined with the main heat exchanger;
- classic expansion tank;
- transfer pump;
- special 3-way valve;
- boost fan (installed only on 2-circuit models).
Navien product samples include a sensor kit, an electronic control board, proprietary piping and a steel shield. Separate structures may contain additional elements for auxiliary purposes.
Popular boiler models Deluxe
Initially, two well-recognized series were launched into production: Navien ATMO and Navien ACE. To date, they have been seized or are preparing to be removed from the production process. They were replaced by boilers of the Deluxe and Prime series, which have very similar characteristics. The most interesting are the units of the first row.
Main parameters of the Deluxe 24k model:
- Type of equipment: gas boiler.
- Number of circuits: two pieces.
- The indicator of thermal power: 24 kW.
- The area heated by one boiler is at least 240 m².
- Way of placement in the room: wall execution.
For the Deluxe 16k model, the parameters will differ only in power (16 kW) and a smaller heated area.
The range of Navien boilers is constantly updated with new samples, so it is almost impossible to consider a complete list of all items.
Possible error codes
For self-diagnosis of possible malfunctions of boiler equipment, the user will need to familiarize themselves with the codes of characteristic errors. Despite the many potential breakdowns of the unit, they all boil down to a limited number of codes. When decrypting them, even an inexperienced user will be able to independently diagnose and then fix the malfunction.
- 01E - overheating of equipment components, detected by a separate temperature sensor.
- 02E - means an open in the circuit of the coolant flow sensor and a decrease in its level in each circuit.
- Error 03 indicates the absence of a signal confirming the operation of the burner (fire may actually be present).
- 04E is the opposite of the previous error. Indicates a short in the flame sensor circuit.
- 05E - malfunction of the media temperature control line in the system.
- 06E is an additional temperature sensor malfunction code associated with a short in its chain.
- 07E - malfunction of the measurement chain of the same indicator in the DHW circuit.
- 08E - an error in the same circuit, but indicating a short circuit in it.
- 09E - Incorrect operation of the built-in fan.
- 10E - problems with the smoke removal system from the boiler.
- 12E - physical absence of flame in the burner.
- 13E - Short circuit in the flow channel sensor in both circuits.
- 14E - lack of gas supply to the burner from the existing line.
- 15E - problems with the electronic board, without indicating a specific cause of the failure.
- 16E - appears when the equipment case overheats.
- 18E - malfunctions in the smoke remover sensor itself (overheating of its body).
- 27E - An error was detected by the electronics in the air pressure sensor (APS).
No specific instructions for repairing boiler equipment samples are given, since the specialists of the service company carry out restoration work. You can fix it yourself only the simplest problems, which are reduced to reset and restart the system.
Installation of a gas boiler
For the installation of floor-mounted boilers Navien Deluxe, a separate place in the room is chosen, convenient for connecting to the electric network and water communications. To mount the wall units, special brackets are used, fixed on anchor bolts. It is forbidden to install boilers on non-capital walls, conventional drywall partitions and similar structures. Building elements and brackets used for hanging the boiler must withstand a load of at least 30 kg.
When installing communications, you should carefully monitor the quality of the connection of the pipes, as well as their compliance with the reciprocal parts. The formed joints should not have leaks, for which, after assembly, they are checked by means of a soap solution. It is better to entrust the connection and configuration of the purchased unit to specialists (as an option, to representatives of the service center).
User manual
Maximum comfort and long-term operation of boiler equipment are possible only under the following conditions:
- constant monitoring of the quality (hardness) of the water entering it;
- high-quality soundproofing of the room allocated for the unit;
- the presence of effective ventilation at its location.
To fulfill the first condition, you will need to constantly check the filter for rough cleaning of the liquid and, if necessary, clean it (replace with a new product). It is also important to periodically monitor the pressure and temperature in the equipment circuits, the values of which must correspond to the rating indicators. If these requirements are observed, no problems arise during operation of the unit; the Navien Deluxe boiler works without failures and breakdowns.
