Maintenance of Navien gas boilers: instructions on installation, connection and configuration

The high-tech Korean gas boiler Navien is a leader in the heating equipment market. Units with a wide range of power are produced for heat supply to houses with a main gas subscriber station. By design, they can operate on liquefied gas. The model range allows buyers to make a fine selection of equipment based on real technical conditions and financial capabilities. They have an impeccable minimalist design. The elegant appearance of the boiler fits into kitchens of any size and configuration.

Features of operation of Navien boilers

Navien - domestic double-circuit boilers with an open or closed combustion device are used for heating residential and public premises and heating water for domestic and technical purposes.

The boiler control is Russified and adapted to the real operating modes of Russian engineering systems.

The APS mechanism ensures a stable fuel combustion process with minimal consumption. The blower fan for supplying air and creating a working pressure of the gas-air mixture has different speed operating modes and allows the operator to control the rotation speed for complete combustion, preventing condensation.

Navien boiler equipment:

• Circulation pump;
• universal heat exchangers for the heating circuit and DHW system;
• security automation;
• expansion tank;
• selection of heating mode and timer to stop the unit;
• Navien boiler, installation and operating instructions.

The advantage of using a heating unit is that a burner with pre-mixing of the gas-air mixture has a modulation range of 30-100%.

Brief information about the manufacturer

The KD Navien company received its name in 1978, transforming from Kyung Dong Mechanics. The Korean company is currently producing not only gas boilers, but also fans, air conditioners, and home automation systems. Since 1988, the company has launched the production of condensing models of European design, and since 1998 - its own design. Since 2006, dual-circuit models and water heaters have been produced.

The company supplies its products to many European countries, as well as the USA, China and Japan. Also, wall-mounted and floor-standing boilers are in demand on the Russian market, as they are fully adapted to the domestic power supply system. The company has its own representative office in Russia.

The Navien company supplies products to many countries

Specifications

NAVIEN Ace-16K Turbo

Gas wall-mounted 16 kW is a compact design of a gas boiler for autonomous heating and hot water supply in houses with an area of ​​up to 98 m2 with a remote control unit. Net power is 16 kW, average efficiency is 86%, and the highest fuel consumption is up to 1.33 m3/hour. DHW capacity - up to 5.5 l/min at t=35C.

Important ! The model is equipped with a closed firebox with an outdoor cold air intake.

Deluxe Coaxial 16K

This is a wall-mounted model with a closed combustion chamber and two heating circuits. The turbocharged fan changes speed based on a signal from the built-in air sensor, which ensures complete combustion of fuel in the firebox, which reduces heat loss through flue gas emissions and increases the efficiency of the installation to 91%.

Benefits of Deluxe Coaxial 16K:

• High performance for hot water supply and heating;
• low contamination of the coolant in the heating system;
• low maintenance and repair costs;
• room temperature control;
• Russified control panel with a large LCD display;
• optimal balance of the gas-air mixture;
• innovative mode of modulation of the gas burner device;
• high-quality warranty service;
• easy setup of the Navien boiler;
• low cost of chimneys and gas transmission systems.

Advantages and disadvantages of Navien Deluxe

Boilers have been sold on the world market for more than 30 years. They have gained popularity due to their reliability and functionality. The high level of safety of gas equipment is ensured by several protection systems:

1. From freezing of the heating system, during prolonged shutdown of equipment in the cold season.
2. From destructive operating modes of the electrical network, during power surges.
3. From low operating conditions of the gas network.
4. From emergency operating conditions of the water supply system, when the coolant pressure decreases to 0.1 bar.

The safety group of the Navien boiler contains primary sensors for temperature and pressure, a control pressure gauge and a safety relief valve against excess pressure in the heating circuit. To protect the internal surfaces of water heating from scale, a filter is installed to purify water from hardness salts.

An SMPS chip is built into the electronic board of the boiler control system, which protects the boiler equipment from fluctuations in the network +/- 30% of the normal voltage of 220V.

Operating instructions for Navien gas boilers

This document is a mandatory appendix to the technical documentation provided by the manufacturer when registering the device in the retail chain. Operation is carried out from the control panel, the model offers many modes of use.

"Navien" mounted boiler operating instructions, structure and description of functions:

• Power (POWER) - on / off;
• combustion (COMBUSTION) displays the combustion process;
• pump (PUMP) status of the network circuit circulation pump;
• hot water (HOT WATER) - water heating temperature;
• low level (LOW LEVEL) - emergency water level in the circuit;
• overheating (OVERHEAT) – unacceptably high water temperature;
• sensor (SENSOR) – sensor malfunction;
• reset (MISFIRE) mode on the panel to factory settings.

DIP switch settings for boilers of different manufacturers

Navien brand boilers are produced in several countries. Depending on the origin and brand of equipment, control panel switches 7, 8 and 9 will be in different modes:

1. Navien Deluxe, Russia - all turned off;
2. Navien Ace, Russia - off/off/on;
3. China - off/on/off;
4. Brazil - off/on/on;
5. Navien Ace, Kazakhstan, Cuba - on/off/off;
6. Iran - on/on/off;
7. Navien STS HE, Kazakhstan - on/off/on;
8. installation error - everything is enabled.

Source of the article: https://makipa.ru/stati/kotly/dip-pereklyuchateli-kotla-naven-nastrojka-i-naznachenie/

Starting the boiler

After all installation work has been completed and pressure testing has been carried out, the first commissioning start-up of the boiler equipment is carried out. All work is carried out by service center workers with the preparation of appropriate documents, which in the future will preserve the manufacturer’s warranty obligations.

When starting the Navien boiler, the instructions must be followed impeccably. Sequence of work:

1. The circuits are filled with water through the unit’s make-up unit, built into the structure, with a special tap at the bottom next to the tap water inlet.
2. Monitor the pressure gauge; when the pressure rises to 2.0 atm, close the tap.
3. Remove air pockets. At the first start, it is performed in manual mode, and at subsequent starts, through an automatic system. They start the process from the most distant battery, opening the Mayevsky tap, and alternately go through all the points of the heating circuit.
4. After etching the air plug, the pressure in the circuit will drop, so re-filling will be required.
5. Discharge the air mixture from the circulation pump.
6. To turn on the unit, press the “Power” button.
7. The electric ignition will work and the unit will start, after which it is necessary to adjust the temperature regime.

How to properly adjust and start

Procedure:

• The boiler startup procedure begins with filling with water. Gas dual-circuit units do not need to install additional devices, so you just need to open the make-up valve and increase the pressure to 1.5-2 At.
• After this, the valve is closed, air pockets are removed from the system and on the unit itself, for which Mayevsky valves on the radiators and an air valve in the boiler are used.
• Then you need to bleed the air from the circulation pump. The casing is removed and the water heating controls are turned on. Specific sounds appear, indicating the operation of the system. On the pump, gradually unscrew the screw in the middle until water appears. This procedure must be done 2-3 times, after which the air from the pump will be completely removed.
• As soon as the circulation pump is brought into operation, the burner will start electronically and the heating system will begin to function.

This completes the initial startup and adjustment procedure..

Settings

“Navien” is programmed for winter (heating and DHW) and summer (DHW) operating modes - with the “Snowflake” and “Sun” icons. The network temperature is adjusted on the LCD remote control when the “radiator” icon on it is lit. In some options, the “Heating Mode” is started, in others the knob is turned. A flashing LED records the set water temperature.

If the icon just lights up without pulsating, the actual temperature in the network is displayed. By selecting the icon, use “+” or “-” to increase or decrease the temperature. After a couple of seconds the LED will stop flashing and show the actual temperature. They regulate the heating temperature from 40.0 C to 80.0 C. If it is set incorrectly, an error code will be displayed.

Note! The DHW temperature is adjusted in the same way, only on the remote control there are pictograms with a tap, the range is from +30 to +60 C.

Price range

The cost of a specific Navien boiler model depends on the power and series of the unit. Basically, prices are in the region of 30-33 thousand rubles. Somewhat cheaper are boilers with an open burner (Atmo series), which can be purchased for 26 thousand rubles.

When calculating the cost, it is necessary to take into account the cost of delivery and installation. In addition, you need to conclude a warranty service agreement, which also costs money. Usually service centers insist on this. so that the installation and connection of the equipment is carried out by their specialists, otherwise the warranty will be denied.

NOTE! The warranty service agreement is concluded not with the store, but with the service center. Some stores are authorized to enter into contracts on behalf of the SC, others only carry out sales and do not provide a guarantee

In such situations, you must independently conclude an agreement with the SC.

Tips and recommendations for operating the Navien boiler

The main advice from experts regarding the safe operation of the boiler:

1. The room where the unit is located must have good ventilation.
2. The unit must have a separate independent connection to the electrical network.
3. The boiler must operate in a fully assembled and protective housing.
4. The user is prohibited from independently repairing the gas equipment of the boiler.
5. The boiler must undergo an annual inspection by representatives of Gorgaz.
6. The boiler owner must periodically check the joints of the boiler and the gas pipeline for leaks with a soap solution.

Additional Information. If leaks occur, immediately turn off the gas valve, ventilate the room and call the emergency gas service.

Navien gas boilers have been used by Russian consumers for a long time. They have rightly earned the trust of customers. The lightweight layout with the widest range of modern water heating functions allows you to choose these models from a large list of offers on the heating equipment market.

Heating installations with Korean “roots”, Navien, are often used both in private country houses and in apartments.

What is the reason for such popularity, what design features does the equipment have, and what difficulties may a consumer encounter when purchasing a Navien gas boiler?

Instructions for safe use (operation), selection of model and proper care. We'll tell you about everything further.

Switching on and controlling units

Navien boilers can be controlled either using the remote control or using buttons on the front panel. This happens quite simply - just press the "Power" button. After this, the unit will start operating in the mode that was last set. To reset the mode, follow the instructions.

During operation, error codes may appear on the display, indicating problems with the system or some kind of malfunction. The explanation of each of them is in the operating instructions. The most common errors are codes 02 and 03. The first indicates the activation of a flow sensor in the heating system. The reason for this may be:

• the appearance of a leak when the make-up is not working;
• The circulation pump does not work;
• clogged filter at the coolant inlet;
• malfunction of the sensor or its electrical circuit.

If the navien wall-mounted heating gas boiler does not ignite and code 03 appears on the display, then the reason is the flame sensor. This may indicate:

• problems with gas supply;
• low fuel pressure in the line;
• malfunctions of the sensor or its electrical circuit;
• clogged ignition electrodes.

When deciding to purchase a navien gas boiler, keep in mind that antifreeze cannot be poured into it, and this is important in regions where there are often severe frosts.

Design and main elements of the boiler

It is important to know your boiler in order to carry out basic maintenance. Although the model may vary from model to model, the main elements can be found in the case:

• combustion chamber;
• heat exchanger;
• expansion tank;
• gas burner;
• circulation pump;
• Control block.

Particular attention should be paid to the design of the lower part of the case, since this is where the inputs and outputs of the circuits are connected, and other important parts are located.

Navien boiler diagram

Closer to the wall there are 4 connecting pipes:

1. Feed input.
2. Return inlet (with safety valve).
3. Hot water outlet.
4. Cold water.

Next is a small gas supply pipe.

In front of the return inlet there is a hot water filter, and even closer there is a drain plug.

In front of the DHW outlet there is a make-up tap, through which the system is filled with water.

If the temperature continues to drop and it reaches -6°, the burner is activated, which heats the water to +21°.

DIP switch functionality

After installing the gas boiler and the entire heating system, there is no need to rush to start up the equipment. It is important to configure the unit correctly, because the efficiency and safety of its operation depends on this.

Adjustment is made using the control board, which is located in the lower right part of the device. It contains small DIP switches for the Navien boiler in two positions. On older versions of the board there are only 10 of them, on newer ones, for example, Prime - 12 pieces. Let's get acquainted with their role in boiler control.

• The first switch is switched to the on position to ventilate the system. This procedure is performed when the heating system is started for the first time. After turning on the toggle switch, the circulation pump will operate continuously for two hours. If this time is not enough to bleed the system, restart the function again by turning the switch off and on.
• The second DIP switch is responsible for setting the maximum pressure of the gas valve. When the toggle switch is active, the unit operates at maximum values.
• The third switch forces the heat generator to operate at the minimum pressure value.

• The fourth DIP switch is responsible for the chimney. Position FE corresponds to a split chimney, where there are two different pipes at the air intake and exhaust. The FF mode should be turned on in boilers with a coaxial combustion product exhaust system. Such models use “pipe-in-pipe” technology, where the inner tube removes hot soot and heats the air entering through the outer pipe.
• The fifth switch determines the type of fuel with which the gas equipment operates. The “Off” position means that natural gas (G20) enters the boiler, and the “on” mode should be activated if you have propane.
• The sixth DIP switch determines the boiler model: Navien Ace Coaxial and Navien Deluxe Coaxial.
• The seventh toggle switch is responsible for the boiler frequency. Typically, Navien equipment operates at a frequency of 50 Hz. In this case, the switch should be in the on mode. The off position is activated for a frequency of 60 Hz.

• The eighth, ninth and tenth DIP switches of the Navien Deluxe boiler set the power of the gas appliance. The parameters of each specific boiler are indicated in its operating instructions. A special table indicates the equipment model and the required positions for each of the last three switches. For example, for the 16 KW modification, the 8th toggle switch will be turned on, and the 9th and 10th will be turned off. Using these elements, you can regulate the boiler power, but it is important to remember that the values ​​are set either as in the manufacturer’s manual, or lower, if the burner allows. Switching these DIP switches of the Navien 24k boiler must be done when the power supply to the boiler is turned off.

Operating modes

Like many heating appliances, Navien boilers have winter and summer operating modes. On the display, the mode change button is indicated by the “Snowflake” and “Sun” icons.

By pressing this button again, you can change the options:

• Winter mode activates heating and hot water supply.
• Summer is only hot water supply for household needs.

You can adjust the coolant temperature on the remote control when the heating radiator icon lights up on the display.

In some models, to do this you need to press the “Heating Mode” button, in others you need to turn the knob with this icon.

A flashing radiator icon means that the numbers you see show the set temperature of the coolant.

If the “radiator” just lights up, the actual temperature in the heating is displayed.

Having selected “radiator”, you need to press the “+” or “-” keys to increase or decrease the temperature. A few seconds after the desired temperature is set, the radiator icon stops blinking, and the display will show what temperature the coolant is now, and the device will begin to gradually heat it (or cool it) to the selected one.

Where is it used?

Gas double-circuit boilers Navien Ace series are designed for organizing heating and hot water supply of residential premises or offices of the appropriate area.

This limits the scope of use of these units, although they can be installed in any premises. The main task is to ensure that the serviced area matches the capabilities of the equipment and the availability of all the necessary resources - gas, electricity and water (coolant).

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 Navien boiler model. The product passport indicates the maximum volume possible for the normal functioning of the system.

Filling the boiler and heating system with water

Error code 02 indicates that there was an attempt to start the boiler, but there is no water in the system, or there is not enough water. What to do:

1. The appliance is unplugged and the gas supply is cut off.
2. At the bottom of the boiler, among many elements, you need to find a make-up valve. Turning it counterclockwise opens it, and turning it clockwise closes it.
3. When the tap is open, monitor the pressure gauge. You need to close the tap when it shows 1.3 - 2 bar.
4. Now the boiler is connected again, gas is supplied and the start is made.

Don't worry if error 02 appears again. This may be caused by the fact that after bleeding the air (which is automatically done at startup), the water level is again insufficient. The filling operation must be repeated.

What's special about ACE 24k Coaxial?

The boiler of this series is a 2-circuit wall-mounted unit that can be easily installed in absolutely any room, be it an apartment, a residential building, a country cottage or an administrative facility. The device has a closed combustion chamber, due to which there is no need to equip a separate boiler room for its installation. You can install NAVIEN Coaxial even in a plumbing unit.

The equipment is well adapted to work in far from simple Russian conditions. It is quite capable of functioning fully at sub-zero temperatures outside the window. Moreover, it is not afraid of low quality coolant and insufficiently stable gas supply. This also applies to voltage drops. And, taking into account the fact that every second family in Russia faces such problems, we can summarize that NAVIEN ACE 24k is suitable for domestic buyers in all respects.

Many manufacturers claim that their unit has the optimal price-quality ratio. However, it is the NAVIEN ACE 24k Turbo model that excels in this parameter better than anyone else. Its cost is truly affordable, and its performance characteristics are surprising. The equipment consumes very little fuel during operation, which will have a positive effect on the family budget, especially in the cold season. And if the slightest malfunction is detected, it can be repaired for relatively little money in one of the service centers.

Draining water from the boiler and hot water supply system

If the boiler is not planned to be used for a long time (especially in winter), it is recommended to drain all water from the heating and hot water circuits. What to do:

1. The unit is de-energized and the gas valve is closed.
2. The valves of the heating system (2 pieces) and cold water are closed.
3. The tap that is usually used opens (above the sink, for example) and drains hot water from the system.
4. The tap in the DHW system is closed.
5. A plug is opened at the bottom of the housing and water from the heating is drained.

Cleaning the heating water filter

Filters collect all the impurities contained in the water.

They need to be cleaned periodically, for this:

1. Drain the water (see previous paragraph).
2. Wait until the equipment cools down completely.
3. There is a filter located not far from the drain plug. To remove it, first remove the mounting bracket, then pull out the filter itself.
4. It must be rinsed under pressure with clean water.
5. Then reassemble in reverse order.

If the filters are not cleaned in time, the boiler will overheat.

Possible malfunctions and ways to eliminate them

Navien error codes:

• 01 – overheating (check if the pump is working and if the filter is clogged).
• 03 – no gas (check if the tap is open).
• 04 – false flame signal (check the serviceability of the gas valve, replace the electrodes or board).
• 05 – 06 – Short circuit on the temperature sensor or open circuit.
• 09 – problems with the fan.
• 10 – problems with smoke removal (check the operation of the fan, whether the chimney is clogged, whether the fan pipes are connected correctly, gusty wind could also be the cause).
• 013 – Short circuit on the OM flow sensor.

If the boiler does not give any errors, but works much worse, the reason may be a clogged filter or an airy system.

Navien boilers, like any other equipment, require good care and proper handling. Regular checks and service control will help avoid breakdowns.

Installation of an internal electrical network is an important stage in the arrangement of a new building. Electricity in a private house with your own hands - how to do the wiring correctly? Read the advice of professionals.

For recommendations on making a gas burner for a boiler with your own hands, read the link.

DIY house

How I set up the Navien boiler, hysteresis on the burner

The boiler heats up, life goes on, but something told me that everything is not so rosy, first of all, a mistake was found among many buyers of gas boilers, they all buy with a reserve of power “just in case,” well, I, like everyone else, I took it with a reserve, with a reserve for hot water supply and frosts, i.e. It turned out that in warm weather outside, the Navien boiler continues to cycle , which is very unfortunate for it, and can lead to breakdown, first of all, there may be a breakdown of the ignition system , since it constantly lights the boiler, and most often wears out, this is not for me I want to.

As an inquisitive researcher, with a stopwatch in my hands, I studied the cycles of the boiler in different modes of its operation, in warm weather, in cold weather, and decided to test the capabilities of the boiler at work depending on the temperature in the room, for this I selected the room mode in the boiler settings.

temperature setting.

At first everything was happy, the boiler obediently stood up, waiting for the set temperature to drop, but the joy was short-lived, cold was already creeping across the floor (the heat from the radiators, which cut off the cold air from my many windows, disappeared, and the house became not very comfortable, in the upper part the room where the remote control for the boiler, in which the temperature sensor is located, hung. It was in a warmer zone, we immediately understood that this was not suitable for us, at first there were thoughts of hanging the remote control down, closer to the floor, but, firstly, this is inconvenient for control, secondly, it can be ruined by domestic cats, thirdly, the boiler may not turn off at all, trying to catch up with the temperature below, when it is already hot in the middle part of the room in height.

The room temperature test did not pass and was not suitable for me, at the same time I remembered the person who connected the gas, who advised that the boiler should not be turned on in this mode.

Time passed, but the cycles did not give me peace, and one day it occurred to me, while regularly observing the boiler, that the hysteresis (delta) in the turn-on-switch-off segment of the gas boiler was probably too small, and I would like the boiler to drive the coolant longer to a higher level. low CO temperature, but it was unclear how to do this, I certainly know how to program, but programming languages ​​for this boiler are inappropriate, and I don’t have equipment to connect to the “brains” of the boiler, and one day, purely by chance, I came across one well-known forum for a person who knows how to do this, and with the help of only one remote control, by entering the engineering menu of the Navien boiler!

This is literally what needs to be done. to change the delta between boiler start-stop.

1. With the Navien boiler remote control turned off, press the + and - buttons for 5 seconds

mode setting

2. The number 8 or 9 or 10 will appear on the remote control display (for me)

3. Again, use the + or - buttons to change the value (this is delta) in the range from 2 to 20 (I set it to 12)

4. We wait 5 seconds, after which the boiler remote control goes out

5. Turn off the boiler by removing the plug from the socket for at least 10 seconds

6. Temperature difference value saved

Having done all this, I immediately realized the difference, the intervals between starts and stops of the boiler increased, although it raised the delta by only 2 degrees!, a useful thing, the engineering menu of the Navien boiler!

But, as it turned out, this is not all that the engineering menu of the Navien boiler ; it turns out that the run-on time of the pump and blower after stopping the boiler can also be set!

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