Setting up a Navien gas boiler with your own hands

. and without construction experience

My works for 2022.

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.

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

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

How to reduce the power of a gas boiler: ways to reduce

Hello, dear readers. Many owners are interested in how to reduce the power of a gas boiler? After all, it begins to consume a lot of fuel, strong noises and clicks appear in it. It feels like it might explode. To resolve the issue, there are general recommendations and points for certain brands and models.

A gas boiler is a necessary device in the house. It handles heating tasks and solves the hot water dilemma (if the model has two circuits). However, there are often cases when the power of the equipment goes off scale, which is fraught with significant waste of fuel and strong heating of the device. Therefore, the question arises of reducing these parameters.

Classic methods

To reduce the power of equipment, you need to apply these methods (one or both):

1. Burner power decreases. Parameters are achieved at which the automatic system sets the stable operation of the device with a connected heating system.
2. Increasing the maximum power parameters of the heating circuit. The process comes down to installing additional radiators or replacing existing ones with more powerful analogues.

Both options can be used. To do this, the difference between the power of the heating circuit and the device itself is reduced: radiators are changed or more powerful units are installed. The existing difference can be compensated by adjusting the power of the boiler itself.

Method No. 2 is less financially profitable, but if there is an urgent need, it is inevitable. Especially when there are radiators that do not have thermal power reserves.

And in cold weather, to maintain optimal temperature data in the room, it is necessary to send water with readings of more than 75 degrees to the radiators. In this situation, organic dust particles burn on the radiators, and a foul smell is formed in the room.

The boiler also has a negative impact - its polymer, plastic and rubber components deteriorate.

It is more effective to reduce the power of boilers of this brand by reducing the fuel supply to the burner. To do this, reconfigure the gas valve.

The Proterm Cheetah model is taken as an example.

A Honeywell valve is used here. Externally, it is a yellow connector with wires. It is mounted on a stepper motor, which helps change its settings.

The specified electric motor is controlled through the control panel: you need to go to the service menu. Access to it appears after entering the code.

The procedure is as follows:

1. Press and hold the “Mode” button for 6-7 seconds. The display will show the number 0.
2. Use the + or – buttons to enter the number 35. This is the code. Press the indicated button again.
3. When the first line of the menu with 0 signs appears on the screen, also using the + or – buttons, enter the number with the required line number: d.**.
4. Changing parameters. “Mode” is pressed again. This is a transition from line numbering ** to the indicators themselves. The “=” symbol and the power parameter are displayed in turn on the screen. Change the values ​​using + or -. After three seconds, the new setting is automatically confirmed.
5. Return the display to its original state: press “Mode” for three seconds. After 15 minutes the screen will return to functional mode.

Navien devices

To reduce the power of many Navien models, just use the remote control and visit the engineering menu.

Procedure:

1. The remote control is turned off. Press + and – for 5 seconds. This is how the regime is established.

1. The numbers displayed on the remote control panel are 8,9 or 10. They change to values ​​in the range 2 -20. Most often the figure is 12 or 13.
2. After 5 seconds the remote control goes out. The boiler is disconnected from the network for 10 seconds.

Baxi products

If you have a small apartment, then for optimal power of the Baxi boiler, the F08 and F10 indicators are set to a minimum.

The modulation interval of a 24 kW device starts at 40% of the maximum power. Then the minimum parameter for its operation is 9 kW. This is enough to heat an area of ​​up to 80 sq.m.

You can also connect a room thermostat to many models. The boiler will start only by its signal when the temperature in the room drops below the set values.

Thanks to programmable thermostats, you can flexibly adjust different modes throughout the day. Even if you reduce the indicator by 1 degree every day, you can save up to 4-5% of fuel per year.

Vaillant technology

Manufacturers of Vailant boilers offer the use of heat pumps in order to optimize the power of their equipment. These devices allow you to generate 2.3 - 4.8 kW of thermal energy at a cost of 1 kW of electricity.

For example, thanks to a pump with a parameter of 15 kW, about 45,000 cubic meters of gas are saved per year. Also, the pump cools the room well in the summer, which eliminates the need for owners to purchase an air conditioner.

Immergas

Immergas boilers can be brought to a suitable power using a gas valve. The setup goes like this:

1. The DHW switch is placed in the position you need.
2. The hot water valve opens.
3. The required power is adjusted using a controlled nut on the valve.
4. Thermal power is adjustable. To lower, turn the nut counterclockwise.

There is a second method: the nut is static, and a plastic valve screw is used. In this case, the valve coil is disconnected from the power supply. To reduce the parameters, the screw itself rotates in the same direction as the nut. The coil is then reconnected to the network.

https://www.youtube.com/watch?v=pFLCsDoMDdg

The minimum parameter should not be inferior to the value reflected in the device’s passport.

The boilers also have software settings, but this is the prerogative of only models from the Zeus line.

Ferroli

Reducing power in boilers of this brand is easy and convenient. For example, we took the Ferroli Domina F18 device.

A small display shows the current mode and temperature data for hot water and heating.

The pressure gauge on the control console reflects the pressure in the heating circuit.

To change the temperature of the circuits, 4 buttons are used, and the mode changes: from Winter to Summer and vice versa. To do this, press the “Reset” button.

To reduce power, select the “Eco” mode. This way the boiler does not waste energy on preheating the water, which saves fuel. However, after opening the valve, you need to wait 2-5 seconds until the water heats up to the required temperature.

Source: https://ballony.com.ua/umenshit-moshhnost-gazovogo-kotla.html

Navien Deluxe gas boiler series

Navien gas boilers are products of the South Korean industrial concern KyungDong NAVIEN.

The company specializes in the production and design of heating equipment operating on various types of fuel - liquid, solid, gas and electricity.

Navien Deluxe is a series of double-circuit wall-mounted gas boilers that replaced the discontinued Navien Ace family.

The design and set of functions have remained virtually unchanged, although some aspects have been improved and supplemented.

The units supply coolant (HC) to the heating system and at the same time provide the home with hot water (DHW).

Korean developments were carried out taking into account Russian conditions and are specialized in working with unstable parameters in all areas - gas and water pressure, power fluctuations. The equipment fully complies with the norms and standards in force in the Russian Federation .

Navien boiler fluctuates heating temperature - Engineering systems

Korean-made Navien heating boilers are popular in our country. They are reliable and at the same time affordable in price. Due to the great demand for these devices, setting up a Navien gas boiler is a pressing issue among buyers.

Manufacturers of Navien produce devices of different capacities, floor-mounted, wall-mounted and with a hot water supply function. They can be connected both to a centralized line and to gas cylinders. The units have a modern appearance that allows them to fit into any home interior. Navien gas boilers are equipped with a safety group, which includes:

• modulating turbocharging;
• protection against coolant freezing;
• SMPS chip that protects against power surges;
• temperature sensor control panel, which allows you to adjust the operation of the unit to certain circumstances.

The most common model of Navien gas units is Deluxe, so let’s look at them in more detail.

Gas boiler Navien: faults and their elimination

Heating a private home » Boilers and boiler equipment » Gas boilers

Navien boiler

An autonomous gas heating system today is popular not only among residents of country houses, but also among apartment owners in multi-story buildings.

This is explained by the numerous positive qualities of modern devices, the ease of their installation and operation.

Among the large range of heating products, Navien gas boilers are especially in demand, the malfunctions of which and how to eliminate them will be discussed below.

Source: https://in-service47.com/kotel-naven-skachet-temperatura-otopleniya/

Specifications

Let's look at the technical characteristics of Navien Deluxe boilers:

Some changes or additions in the values ​​of boiler parameters are possible due to improvements in the design by the manufacturer.

Types of wall-mounted boilers

Atmospheric gas boiler NAVIEN ATMO 24-AN

There are three types of wall-mounted heating devices of this class on the domestic market:

• Navien atmospheric (open) boiler;
• turbocharged wall models;
• condensing devices.

Each of these positions requires separate consideration.

Atmospheric gas boilers

Units of this type have an open combustion chamber. Represented by the Navien Atmo model. It is intended for operation in conditions of uneven gas pressure (its differences can reach 8-17 mbar) and the coolant itself - from 0.6 to 8 bar. The power of the offered units varies from 13 to 24 kW. At an operating temperature of 80°C, the coolant heats hot water to 60°C with a production volume of 10 liters per minute. To remove combustion products, they are equipped with standard chimneys.

The heating circuit in atmospheric boilers is made of copper, and the heat exchanger body is made of stainless steel.

Turbocharged units

Turbocharged boiler Navien Deluxe 10 Coaxial

The group of units of the second type (with an isolated combustion chamber) includes models of the following series:

• Prime, represented by boilers with a capacity of about 13-35 kW;
• Deluxe, whose declared power ranges from 13 to 40 kW;
• modern Smart TOK models with an indicator of 13-35 kW.

Portions of air are forced into the isolated combustion chamber - they are pumped through a special fan installed in a coaxial pipe. Thanks to this, units with a Coaxial design have a higher efficiency, sometimes reaching a record figure of 93%. Gas boilers from the Navien Deluxe series are able to withstand significant changes in supply voltage, as they are equipped with a built-in stabilizing device. In addition, they have the option of automatically maintaining the temperature of the media at a level not lower than the “cooling point” (6-9 degrees).

Condensing boilers

Condensing gas boiler Navien NCN 40KN

The third type of Navien gas boilers is represented by samples of equipment from the NCN and NCB series. Due to additional heating of the carrier with the heat of the condensate, their efficiency was increased to 99%. The functionality of these units is even higher than that of turbocharged boilers - the controller built into them allows you to set temperature parameters for a week in advance.

The Navien NCN product series includes four varieties with power from 22 to 40 kW, and NCB has the same number of products with ratings of 24-40 kW. The water in them is heated to 65°C, and the coolant circulating through the pipes is heated to 90°C. These units are able to withstand media pressure up to 10 Bar.

The air supply in equipment of this class is organized through a coaxial or conventional chimney.

Advantages and disadvantages

The advantages of Navien Deluxe boilers include::

• The ability to provide hot water supply along with the organization of heating of the home.
• Environmental safety of equipment.
• Adaptation to Russian technological and climatic conditions.
• Simple and reliable control, presence of a remote control.
• The presence of a self-diagnosis system through a group of sensors that monitor all systems and components of the unit.

The disadvantages of the units are:

• Dependence on the availability of electricity, gas and water.
• High noise level.
• Possibility of using only standard components.

All features of Navien Deluxe boilers, in fact, are specific design features and can be fully compensated for by proper operation and maintenance.

How to enter the engineering menu of the Navien Ace boiler

Gas boiler Navien Ace - produced by the famous Korean company Navien. Due to its ease of use and relative cheapness, the Navien Ace boiler has gained great popularity in Russia. One of the conveniences of this boiler is that the remote control panel for the boiler is supplied standard, that is, it is in the box along with the boiler.

This control panel contains a display and keys for selecting the operating mode.

You can select the operating mode by pressing the key with the image of a radiator. The boiler has the ability to maintain the temperature according to the coolant temperature.

You can also set the operating mode of the Navien Ace boiler based on the air temperature in the room where the control panel is installed. This opportunity is available thanks to the built-in thermostat in the control panel.

When the set temperature is reached, the Navien Ace boiler will turn off and wait for it to drop by 10 degrees from the set temperature. The temperature range is set by the manufacturer, and you can change it by going to the engineering menu of the Navien Ace boiler. In this menu you can change the factory settings of the boiler operating mode.

To enter the engineering menu of the Navien Ace boiler, you must press the + and - keys.

In this menu we will see the difference in temperature between turning on and off the boiler.

By pressing the + and - keys you can increase or decrease it. The most optimal value is 10 C, this will reduce the operating time of the boiler, and therefore the amount of gas consumed.

To save the boiler settings, you must press the boiler switch off button.

To go to the settings of the pump and fan operating modes, you must press the key with the image of the radiator and mixer.

In this menu on the display you will see the following values: P1 - summer pump run-on, F1 - summer fan run-on, P2 - winter pump run-on, F2 - winter fan run-on.

Run-on is the time that the pump and fan operate after the burner is turned off. To configure all parameters, you need to select the desired mode and click on the mixer.

Pump time values: P- 40 (20 minutes of operation), 10 (5 minutes of operation). Fan time values: F- 4(2 minutes of operation), 2(1 minute of operation), 1(30 seconds of operation). To save the settings, you must press the mixer key.

Please note: the service menu of the Ace boiler is intended only for specialists. Try not to use this menu to avoid malfunctions of the boiler.

If you have any questions, call us or write in the chat on this page. We'll be happy to help.

Device

The Navien gas double-circuit boiler heats the coolant and ensures its circulation in the system.

A gas burner combined with a primary tubular heat exchanger heats the OM flow, which passes through a three-way valve at the outlet.

To obtain a given temperature, a certain amount of cooled return water is mixed in, after which the coolant is sent into the system.

The combustion mode is regulated by the supply of fresh air, which is provided by the fan.

Hot water is heated by a secondary heat exchanger (plate). The operation of all devices is monitored by a system of sensors that signal to the control board about the occurrence of certain problems.

Pros and cons of Navien gas systems

A gas boiler for heating a private house Navien has a number of undeniable advantages:

• Frost protection.
  When the indoor temperature drops, the system automatically starts the frost protection mode. When the water temperature drops below 10 ºС, the circulation pump is turned on, ensuring constant circulation of the coolant in the heating system. When the temperature drops below 5 ºС, the burner lights up and the coolant warms up to 22 ºС.
• Availability of a turbocharging system. The turbocharging fan in such boilers is located under the combustion chamber and changes its rotation speed according to the counter. It is directed from the APS air pressure mechanism. It turns out that air enters the combustion chamber in a volume proportional to the volume of supplied gas. Only such an Ice Turbo system with an installed fan and APS mechanism makes it possible to ensure complete combustion of gas with minimal heat loss.
• The presence of a stainless steel heat exchanger. Unlike copper, it has high oxidation resistance. This nuance significantly extends the life of Navien wall-mounted gas boilers. However, even taking into account the high resistance of stainless steel to rust, such heat exchangers are used in boilers extremely rarely, since they have a much lower level of thermal conductivity compared to a copper heat exchanger. And only Navien ace Turbo wall-mounted gas boilers have a simulated turbocharging system to increase the efficiency of the entire system.
• Long-term and safe operation of the system in conditions of constant external failures. The SMPS function found in the microprocessor protects the system from damage during power outages. Only Navien boilers manage to function normally under conditions of significant fluctuations. This extends their service life significantly compared to other heating devices.
• The ability to heat the room and heat water in conditions of low pressure in the system.

The automated mobile heating control system, thanks to the presence of built-in temperature sensors, makes it possible to significantly save on gas consumption.

Where is it used?

Navien Deluxe gas double-circuit boilers are designed for heating and supplying hot water supply in private homes.

The boiler power corresponds to the area being served, which makes it easier to select the right device.

The use of the Navien Deluxe series is not recommended for heating industrial or public buildings, since the specific capabilities of the equipment in such conditions will not be adequately revealed.

Often such equipment is installed in apartments, if their size allows the installation of equipment of similar power.

Replacing the hydraulic system on Navien Ace boilers

Navien Ace boilers are manufactured by the world famous company Navien, which is located in Korea. These boilers have proven themselves well on the Russian market due to their durability and low price. Navien Ace boilers are a complex technical device and, like any other equipment, they are not protected from possible breakdowns. One of these breakdowns may be the failure of the hydraulic unit on Navien Ace boilers.

If the hydraulic unit fails, we will need to replace the hydraulic unit on Navien Ace boilers. Due to the simplicity of the design, repair of Navien Ace boilers can be done by yourself. However, in this case, you take full responsibility for the results of the work. It is better, of course, to entrust the replacement of the hydraulic system to professionals.

But - if you want to save money, then in this article we will fully explain how to replace the hydraulic unit on Navien Ace boilers.

Before repairing the boiler, it is necessary to disconnect it from the power supply. Following this simple rule will allow you to avoid electric shock.

Now you can begin repairing the boiler, namely replacing the hydraulic unit. To do this, you need to turn off the gas supply valve and remove the front cover of the boiler.

Next you need to turn off the taps on the heating supply and return. And also on the supply and return water supply.

Remove the plug from the drain hole and drain all coolant from the boiler.

Disconnect the electronic board. To do this, remove the screws securing the board to the boiler and move the electronic board to the right.

There is a pressure gauge under the electronic board; you need to remove two screws from it that secure the pressure gauge.

Once we have removed the screws from the gauge, we can remove the gauge mount. To do this, you just need to pull the fastener.

Remove the two fastening screws from the boiler protective strip. Remove the protective strip of the Navien Ace boiler.

In the lower right corner there is a gas fitting. It is necessary to remove the electrical terminals from it.

Now unscrew the union nut and the gas supply pipes to the burner.

The gas supply pipe at the bottom is secured with screws; they must be removed.

After we have removed all the fasteners from the gas supply pipe, we can remove it.

In order to remove the gas fittings, it is necessary to remove two screws securing the fittings to the body of the Navien Ace boiler.

We remove the gas fittings from our boiler.

Next, you need to remove the bracket that is located between the water fittings and the cold water inlet pipe.

After this, unscrew the union nut of the make-up tube and move the tube to the side.

We take out the bracket securing the hydraulic fittings to the heat exchanger.

Now we remove the hydraulic fittings of the Navien Ace stake.

After you have removed the hydraulic unit from the boiler and replaced it with a new one, you can begin assembling the boiler.

Reassembly should be done in reverse order.

After completing all the steps according to the instructions, your repair can be considered complete.

After repairs, the boiler must be put into operation under supervision to ensure that there are no leaks.

If you have any questions, call us or write in this chat. We will be happy to help.

What's included

The Navien boiler package includes::

• Primary and secondary heat exchangers.
• Expansion tank 8 l.
• Gas heating pad of closed or open type.
• Three-way valve with electric motor.
• Fan for organizing turbocharging.
• Circulation pump.
• A sensor system connected to a control board.
• Built-in voltage stabilizer.
• Remote control.
• Housing with external connecting pipes.

Is it possible to regulate the power of the circulation pump in the Navien 24 boiler? if so, how?

Is it possible to regulate the power of the circulation pump in the Navien 24 boiler?
if so, how? Best answer

if there is a switch on the pump itself (usually a 3-position switch), then it’s possible. . if the pump does not have it, then it is single-speed. .

Alexander KudryashovStudent (140) 6 years ago

Thank you. Is it possible to put extra? pump? Where? for supply or return

oktavius ​​111 Sage (17735) possible. . where to put it makes no difference. . still circulation in a closed system. . at least in the middle, between the batteries. . Usually they are placed where space allows. .

User manual

Navien boilers operate automatically and require virtually no human intervention.

The only thing that is required from the owner is to set a comfortable heating temperature . If liquefied gas is used as fuel, it is necessary to ensure timely replacement of cylinders.

The possibility of long-term operation without specialized service checks is a feature of Navien equipment, which is convenient for users and relieves them of concern about the condition of the unit.

If any malfunctions occur, the corresponding error code appears on the display, the water pressure is shown by a pressure gauge, which allows you to timely detect a leak in the system.

The owner may be required to purchase and install a special filter or water softener, which will extend the life of most boiler components - heat exchanger , pump or three-way valve . If the water supply is from your own well, installing a softener becomes a necessity.

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.

• Languages: Russian
• Type: ZIP
• Size: 21.31 MB
• Description: Wall-mounted gas boiler

Setting up the device yourself

To configure the boiler, set the debugging mode. Then you should adjust the gas pressure limits - minimum and maximum.

It is necessary to bleed air from the circulation pump by unscrewing the plug. This is done after the pressure has built up during the circulation of the heating agent .

The boiler operation is configured using DIP switches.

• You can turn on automatic air removal using DIP switch No. 1, which will start circulation for 2 hours and gradually remove air automatically.
• Turning on switch No. 2 switches the system to maximum power, at which the maximum gas pressure can be adjusted.
• When switch No. 3 is turned on, the boiler is switched to forced operating mode at minimum power, at which the minimum gas pressure is adjusted.

All switching must be performed with the power supply turned off.

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.

Basic malfunctions and their solutions

Any faults that occur are shown on the display as a numeric code. Each of them corresponds to a specific error, i.e. a signal from a specific sensor about the failure of the corresponding node.

Let's take a closer look at them:

• E 01. Exceeding the heating temperature. Indicates a failure of the circulation pump or a clogged coolant filter.
• E 02. Exhaust circulation error. Possibility of coolant leaks.
• E 03. Gas does not burn. Check whether the gas supply valve is open.
• E 04. Parasitic flame. The sensor may spark and perceive it as an open fire.
• E 05, E06. Exhaust temperature sensor short circuit. Occurs due to the appearance of condensation on the board with the sensor.
• E 07. DHW temperature sensor failure. Check sensor contact.
• E 08. Short circuit of the DHW heating sensor. Replacing the sensor.
• E 09. Fan failure. Replace the fan.
• E 10. Problems in the smoke removal system. The chimney may become clogged or the outlet channel may become icy.

There may be additional codes that need to be read carefully in the user manual.

Setting up the Navien boiler

Common malfunctions and their solutions

Errors in the operation of the boiler are displayed by corresponding codes on the control panel.
Among them:

• E01. Boiler overheating. Occurs when the circulation pump fails, or less often when the coolant filter is dirty.
• E02. Coolant circulation error. Indicates the formation of leaks in the system or the boiler itself (connections).
• E03. No flame on the burner. This indicates either a failure of the ignition coils or a lack of gas in the system.
• E04. Parasitic flame. There is a gas leak or a spark jumps between the flame sensor and the ignition electrodes.
• E05, E06. Open circuit (short circuit) of the extract air (heating water) temperature sensor. Occurs when the contacts close, most often due to the presence of condensation or other moisture on the board with the sensor.
• E07. DHW heating sensor failure. It is necessary to check the contact or quality of connection of the sensor.
• E08. Short circuit of the DHW heating sensor. The sensor or the entire controller needs to be replaced.
• E09. Fan failure (failure). Check the contacts and, if necessary, replace the fan.
• E10. Malfunction of the smoke removal system. Usually occurs due to blockage of the chimney by ice from condensation.

NOTE! There are other error codes that appear when certain problems occur. A complete list can be found in the user manual for this device.

SR Series

Universal air heating sections for indoor or outdoor installation

Thermal power from 122 to 1,160 kW

Navien presents a universal water heating system

Navien Ace gas boilers are not afraid of low pressure of gas and water, they are not afraid of voltage drops in the network. The operation of Navien gas boilers is characterized by a long service life and economical gas consumption. All Navien gas devices comply with the standards and regulations of the Russian Federation and have the appropriate certificates.

Frost protection system stability

If the room temperature drops, the automatic protection system is activated

from freezing. When the temperature of the heating water drops by more than 10 degrees Celsius, the circulation pump automatically starts, resulting in constant circulation of the coolant in the heating system. If the temperature of the heating water drops to 6 degrees Celsius, the burner is automatically turned on and the coolant warms up to 21 degrees Celsius.

Safety of operation during frequent power surges

According to the instructions, the voltage can fluctuate within ±30 percent due to the triggering of the Switched – Mode Power Supply (SMPS) protective chip on the microprocessor. At the same time, the boiler operation does not stop

, which prolongs its service life and prevents breakdowns.

Operating conditions for heating and hot water:

• subject to low inlet pressure in the gas pipeline system, stable and safe operation of the Navien Ace gas boiler is possible at a gas pressure of four mbar (40 millimeters of water column);
• subject to low incoming water pressure in the water supply system - stable operation of the Navien Ace gas boiler is possible provided that the incoming water pressure drops to 0.3 bar, which allows this gas device to be used in homes
  where there is low water pressure in the water supply system, including where there are frequent pressure drops in the water supply system.

Rational design

Navien gas boilers are small in size and light in weight, they are convenient to transport, they are easy to install and there is the possibility of rational use of room space. For ease of installation, the connecting tubes are located on both sides of the device, which greatly simplifies the piping and installation of the Navien Ace gas boiler.

Fuel preheating (KR series)

At low temperatures, the viscosity of the fuel increases, resulting in a waxing effect, which significantly impairs the flammability of diesel fuel

and the operation of the Navien gas boiler becomes unstable. This feature of operation is relevant for regions with harsh climates, therefore arctic and winter diesel fuels were created for these conditions.

Navien gas devices operate on any Russian-made diesel fuel

However, the cost of winter or arctic diesel fuel is much higher than that of summer diesel fuel, and the use of summer fuel is impossible at low temperatures without preheating it.

The heating element, which is built into the burner of the Navien gas unit, preheats it before supplying fuel to the nozzle, resulting in high-quality fuel atomization and uninterrupted ignition. Due to preheating in Navien Ace gas boilers, it is possible to use inexpensive summer diesel fuel

, which leads to significant savings.

Design

1. The heat exchanger is made of stainless steel

Stainless steel is used to produce the heat exchanger, so it is not subject to corrosion

, which significantly extends the life of the Navien Ace boiler.

2. Modern diesel burner

Thanks to a modern, efficient diesel burner, low-noise, stable operation with minimal fuel consumption is ensured. According to the instructions , the burner can work with any diesel fuel

, taking into account all types of fuel produced in the Russian Federation.

3. Fuel filter with replaceable cartridges

The fuel supply system is equipped with a filter to remove unwanted impurities, as a result of which the stable operation of the Navien Ace gas boiler is disrupted. The Navien device comes with additional replacement cartridges.

4. Russified control panel

Using a fully Russified remote control panel equipped with a liquid crystal digital display, it is possible to save fuel consumption and reduce heating costs

, as well as constant maintenance of a comfortable room temperature thanks to the room temperature sensor built into the control panel.

For which rooms is it best suited?

The power of the Navien Ace 24 K boiler is designed for operation in industrial, public or residential premises with an area of ​​up to 240 m2.

There are no specific requirements for premises. The units performed well in difficult conditions, with unstable gas and water supply parameters.

The only condition for high-quality operation of the equipment is the proper installation of the boiler itself and the heating system and an uninterrupted supply of electricity.

Relatively small fluctuations (up to 30) in voltage are not a problem for devices, however, judging by user reviews, the automation cannot cope with fluctuations and requires a stabilizer.

Setting up a Navien gas boiler

Next, we’ll look at how to set up a Navien Deluxe gas boiler with your own hands. Manipulations are carried out using a remote control with a built-in room temperature sensor.

Heating settings

To set the heating mode and set the coolant temperature, hold down the button with the image of a radiator until the same icon appears on the screen. If the “radiator” picture blinks, it means that the set coolant temperature is displayed on the screen. If the symbol does not flash, the actual water heating level is displayed.

Navien wall-mounted gas boilers - model range, pros and cons

How they work and what are the advantages of Navien Ace gas boilers

To set the desired temperature, use the “+” and “-” buttons with the “radiator” icon flashing. The possible range is from 40ºC to 80ºC. Once the temperature is set, it will be automatically saved. The “radiator” icon will blink for a few seconds, after which the actual temperature of the coolant will be displayed on the screen.

Heating with air temperature control

To set the desired air temperature in the room, you need to hold down the “radiator” button until the image “house with thermometer” appears on the screen. It means “Heating with room temperature control” mode.

When the “house with thermometer” symbol is flashing, the desired room temperature is displayed on the screen. When the icon is not flashing, the display shows the actual room temperature.

When the icon is flashing, using the “+” and “-” buttons, the desired level of heating in the room is set, adjustable in the range of 10-40ºC. The temperature is then automatically saved and the icon stops flashing.

Setting the hot water temperature

To set the hot water temperature, you need to hold down the “water tap” button until a similar flashing symbol appears in the right corner. You can then set the desired hot water temperature between 30ºC and 60ºC. The settings will be automatically saved and the “water tap” symbol will stop flashing.

Note! In the “Hot water priority” mode, the water heating temperature is regulated differently. Now let’s look at how to configure the Navien Deluxe gas boiler in the “Hot water priority” mode. To activate it, hold down the “water tap” key until the “faucet and light” symbol appears on the screen.

Now you can set the desired temperature using the “+” and “-” keys. When changing the DHW temperature, the “water tap” icon should flash above the “tap and light” symbol.

To activate it, hold down the “water tap” key until the “faucet and light” symbol appears on the screen. Now you can set the desired temperature using the “+” and “-” keys. When changing the DHW temperature, the “water tap” icon should flash above the “tap and light” symbol.

Now let’s look at how to configure the Navien Deluxe gas boiler in the “Hot water priority” mode. To activate it, hold down the “water tap” key until the “faucet and light” symbol appears on the screen. Now you can set the desired temperature using the “+” and “-” keys. While the DHW temperature is changing, the “water tap” icon should flash above the “tap and light” symbol.

The “Hot water priority” mode involves preparing a supply of water at a given temperature even if it is not in use. It allows you to supply heated water to the consumer a few seconds earlier.

Away Mode

The “Away” mode means the gas boiler operates only for preparing hot water. To switch the unit to this mode, you need to press the button that shows an arrow and a water tap. The “water tap” symbol that appears on the screen means that the “Away from Home” mode is set. The actual temperature in the room is displayed next to it.

Note! This mode is convenient for use in the warm season, when hot water supply is necessary, but there is no need for heating

Setting the Timer mode

The “Timer” mode is necessary to set the time for stopping the operation of the gas boiler within the range from 0 to 12 hours. The unit will work for half an hour, turning off for the specified interval.

To set the “Timer” mode, hold down the “radiator” button until the “clock” symbol appears. When the icon is flashing, use the “+” and “-” keys to set the interval time. The set value is saved, the “clock” stops blinking, and the display shows the actual air temperature.

Navien Deluxe Operating Instructions

After completing the installation work and piping with the in-house engineering systems for water, electricity, hot water supply and the heating circuit, the heating network is pressure tested to ensure there are no leaks.

The unit is filled with water, with a pressure usually up to 2 atm. Filling is carried out at positive outside temperatures. During the process of filling the network, monitor how the automatic air vent works, relieving air plugs.

After filling the boiler, they begin to ignite, before this they check the functionality of the gas equipment and the smoke exhaust system so that the draft in the boiler corresponds to the regime map specified in the factory instructions.

Press the start button, depending on the boiler model, and monitor the operation of the piezo igniter. On the operating panel, the required temperature regime is set for the heating and hot water circuits.

After the Navien boiler reaches operating mode, control the operation of the boiler equipment, pump, fan and burner device. Operation should be virtually silent, the flame should be even and without popping, and flue gases should be completely vented to the atmosphere.

The pressure and temperature of water in the DHW and heating circuits must correspond to the specified mode.

Features of Navien Ace TURBO

Compact arrangement of boiler elements.

The wall-mounted double-circuit boiler is characterized by the following:

• application for heating water and heating residential buildings;
• the equipment contains a steel heat exchanger coated with anti-corrosion, which significantly reduces the cost of the equipment in comparison with boilers equipped with copper heat exchangers;
• Navien Ace gas boiler (operating instructions included with each model) is easy to use;

Wall mounted hardware has brains. This means that the unit ensures that the coolant does not freeze in the heating system pipelines. Automation works in two cases. The first is when the water temperature drops to 10 degrees. At this time the time turns on. The second situation occurs when the coolant temperature is less than 6°C. In this case, the gas burner is turned on, heating the coolant to 21 degrees.

Navien products have positive reviews. This is due to the long period of use and high efficiency of the unit. The equipment is characterized by high fuel and electricity savings. This is facilitated by the presence of turbocharging and an APS sensor, which monitors air pressure.

Installation technology and connection instructions

Installing the boiler is not difficult. Floor samples are simply installed in a designated place, and wall samples are hung on a durable surface using elastic noise-absorbing pads.

It is prohibited to hang boilers on fragile partitions made of plasterboard or other similar material.

The boiler is connected by connecting all necessary communications and power supplies. It is necessary to be careful and carefully monitor the correct connection of the pipelines.

Main attention should be paid to gas pipe connections. Using a soap solution, check for leaks

There are usually no significant problems with the connection, but representatives of service centers insist on involving their specialists in the installation. It is believed that this option allows for proper connection of equipment and eliminates the possibility of errors.

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.

Specifications

Modern Navien units are equipped with a remote control panel, which receives a signal from a temperature sensor.

Its readings are instantly transmitted to the control unit chip, which gives a signal to the actuator to increase/decrease the gas flow rate to the double-circuit boiler. Similarly, a command may be received to completely shut down the unit if an emergency situation occurs in its operation.

The most popular modifications of Navien gas boilers are double-circuit wall-mounted units with a closed firebox, a thermal power of 20-24 kW, capable of efficiently heating a room from 160 to 240 m2 and preparing hot water for the domestic needs of a family of 4 people.

Technical characteristics of Navien wall-mounted gas units with a closed combustion chamber:

1. Navien Deluxe Plus – 20k, heating – 160 m2, maximum/minimum performance – 20/9 kW, expansion tank – 8 l, electric pump – yes, heating + hot water supply, efficiency – 91.7% gas consumption – 2.15 m3/hour, price – 31,080 rub.
2. Navien Deluxe Plus – 24k, heating – 192 m2, maximum/minimum performance – 24/9 kW, expansion tank – 7.5 l, electric pump – yes, heating + DHW, efficiency -90.5%, heat exchanger – steel, gas consumption – 2.58 m3/ hour, price – 31,230 rub.
3. Navien Deluxe Plus -24k COAXIAL, power 24 kW, heating - 240 m2, maximum/minimum performance - 24/9 kW, expansion tank - yes, electric pump - yes, heating + hot water, efficiency - 90.5%, heat exchanger - steel, gas consumption – 2.58 m3/hour, price – 28,500 rub.
4. Navien ACE-20AN, heating -190 m2, natural combustion, maximum/minimum performance - 20/9 kW, expansion tank - yes, electric pump - yes, heating + hot water, efficiency - 91%, heat exchanger - plate, gas flow - 2.06 m3 /hour, price – 29,130 ​​rub.
5. Navien Deluxe – 20k White, heating – 186 m2, maximum/minimum performance – 20/9 kW, expansion tank – yes, electric pump – yes, heating + hot water, efficiency – 90.5%, heat exchanger – steel, gas consumption – 2.15 m3/hour , price – 32,160 rub.
6. Navien Deluxe – 24k White, heating – 220 m2, maximum/minimum performance – 24/9 kW, expansion tank – yes, electric pump – yes, heating + hot water, efficiency – 91.5%, heat exchanger – steel, gas consumption – 2.58 m3/hour , price – 29,980 rub.
7. Navien Deluxe-20k COAXIAL White, heating – 190 m2, maximum/minimum performance – 20/9 kW, expansion tank – yes, electric pump – yes, heating + hot water, efficiency – 90.5%, heat exchanger – steel, gas consumption – 2.15 m3/ hour, price – 32,160 rub.
8. Navien Deluxe-24k COAXIAL White, heating – 220 m2, maximum/minimum performance – 24/9 kW, expansion tank – yes, electric pump – yes, heating + hot water supply, efficiency – 90.5%, heat exchanger – steel, gas flow – 2.15 m3/ hour, price – 29,090 rub.
9. Navien SmartTok – 24K, heating – 220 m2, maximum/minimum performance – 24/9 kW, expansion tank – yes, electric pump – yes, heating + hot water, efficiency – 91.0%, heat exchanger – steel, gas flow – 2.6 m3/hour, price – 34,430 rub.
10. Navien Deluxe S COAXIAL-24k, heating – 200 m2, maximum/minimum performance – 24/9 kW, expansion tank – yes, electric pump – yes, heating + hot water supply, efficiency – 91.2%, heat exchanger – steel, gas consumption – 2.58 m3/ hour, price – 31,060 rub.

Characteristics of the Navien Ace line of wall heating devices

A wall-mounted, double-circuit gas heating device from the manufacturer Navien, belonging to the Ace line, is represented by the following models: Navien Ace ATMO, Navien Ace TURBO. Moreover, the latest model is presented on the market in two modifications – Korea and Coaxial.

The Navien Ace wall-mounted boiler, regardless of modification, has a power from 13 kW to 40 kW, which allows the equipment of this manufacturer to be placed in rooms of various sizes.

Features and characteristics of Navien Ace TURBO

The Navien Ace gas wall-mounted boiler can be placed in rooms of any size.

The manufacturer claims that Navien Ace TURBO boilers are ideal for use in domestic conditions. They can operate at low gas pressure in the pipes, significant voltage surges, and retain their functionality even when they are left unplugged for a long time and the coolant in the heating system begins to cool.

In addition, wall-mounted dual-circuit heating elements, Navien Ace TURBO, have other characteristics:

1. this is a double-circuit unit, that is, it is suitable for heating a room and for preparing hot water for domestic purposes;
2. The double-circuit heating device has a steel heat exchanger with a protective anti-corrosion coating. Its cost is several times lower compared to copper analogues. And the insufficient boiler power due to the reduced thermal conductivity of steel is compensated by turbocharging of the gas burner. Today, Navien Ace TURBO can compete in power with devices that have a copper heat exchanger;
3. This gas wall heating element ensures that the coolant in the heating system does not freeze. So, when the water temperature in the heating system drops to +10°C, the boilers immediately turn on the circulation pump. By distilling water through the heating system, it prevents the formation of ice crystals. If the coolant temperature drops below +6°C, the gas burner is turned on. It heats the water in the heating system to +21°C;
4. Navien Ace TURBO gas heating units are characterized by economical energy consumption. This is due to the synchronous operation of the turbocharging system and the APS (Air Pressure System) air pressure sensor. The boilers use a pressure sensor to control the rotation speed of the fan under the burner, thereby mixing the gas in optimal proportions with air, which allows the energy carrier to be completely oxidized. Consequently, the efficiency of the equipment increases, but the gas consumption does not increase;
5. These boilers have a long service life, thanks to a reduction in the number of on/off cycles in the event of power surges and low water pressure in the system. Thus, double-circuit boilers will continue to operate if the voltage drops by 30% from 230 V. They will not turn off if the water pressure is 0.1 bar, which is important for houses with autonomous water supply.

Navien double-circuit boilers have two modifications. The Navien Ace TURBO Coaxial gas unit has a coaxial chimney. It is useful for those rooms in which it is difficult to ensure air flow for the boiler. That is, the coaxial chimney takes air for the combustion reaction from outside the building. Korea boilers take air from the room. They work silently.

Features and characteristics of Navien Ace ATMO

Navien Ace ATMO gas boilers operate even at low voltage.

The Navien company has developed double-circuit heating boilers that run on gas, but with an open combustion chamber, that is, without turbocharging. These are Navien Ace ATMO boilers. They feature the same functionality as turbocharged models. This is an adaptation to domestic operating conditions.

These heating boilers have the same chip, which ensures their constant operation at low voltage and system pressure. Gas equipment is equipped with a steel heat exchanger. A double-circuit boiler makes it possible to prepare hot water for domestic needs. However, the open combustion chamber ensures quiet operation, unlike turbocharged boilers.

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.

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.