Operation of the Navien Deluxe gas boiler: installation of double-circuit wall-mounted models with your own hands + reviews from owners

Autonomous heating and hot water supply turn a private home into a comfortable home that provides considerable savings and does not depend on the appetites of resource suppliers.

Installing your own boiler allows you to independently regulate the heating mode, based on need and climatic conditions, and not on the average annual coolant supply schedule.

The choice of equipment in the retail chain is extensive, but finding the most successful option is quite difficult.

The cost of European boiler models is too high; the quality of domestic models often leaves much to be desired.

Let's consider one of the most successful options, combining affordable cost and high quality.

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 .

IMPORTANT!

Navien boilers are equipped with a special device that compensates for voltage fluctuations in the network up to 30%.

Range

The assortment of the South Korean company Navien is constantly expanding, which allows customers to purchase gas boilers that are optimally suited in all respects.
Therefore, it is impossible to talk about all representatives of the model range. Instead, we will look at Navien equipment, which can be divided into three broad categories.

1. Wall models. Wall-mounted boilers have a double heat exchanger and are labeled as Ace, Deluxe. Deluxe are dual-circuit models that have a wide power range from 13 to 40 kW. All Deluxe series boilers are turbocharged. Turbocharged Deluxe equipment can have a coaxial or separate chimney. In addition to Deluxe, the Ace series of wall models is in great demand. The Ace series is divided into Turbo and Atmo. The difference between them is that Turbos are fully adapted for operation in conditions of non-steel gas and electricity supply to the boiler. An additional advantage of Ace Turbo is frost protection and burner turbocharging. If we talk about Atmo, then this is a classic gas boiler that perfectly provides heating for a private home. Atmo has all the strengths of the Turbo, except for the turbocharging of the burner.
2. Floor-standing boilers from Navien. If wall-mounted models do not suit you for one reason or another, floor-standing models have earned excellent reviews. They are used for heating and hot water supply of private houses. The distinctive features of floor-standing models of Navien boilers include their compact size, ease of operation and convenient installation. Each boiler is supplied with instructions, according to which even a novice in such matters can carry out the installation. Wall-mounted models are somewhat easier to install, although there are no problems with them. A double heat exchanger significantly increases the efficiency of heat generation in a gas boiler.
3. Condensation. Deluxe, Ace and other models of the Navien company recently received a serious competitor in the form of South Korean condensing boilers. They are marked NCN. Their distinctive feature is increased power, the range of which is 19.6-37.9 kW. These boilers use fuel efficiently, using less fuel but providing higher quality heating. The efficiency of Navien condensing-type boilers reaches 108 percent. This was made possible by using the heat that is released when steam condenses. This way, consumers save money on gas bills, but heat their own homes more efficiently. The heat exchanger here is slightly different. Its design is unique and is distinguished by the presence of a system for preliminary creation of a combustible mixture. The burners are necessarily modulating, the range of operation of which is amazing.

By choosing boilers from the Navien company from the Deluxe, Ace or other ranges, you are buying quality and reliability. This is one of the few cases where the manufacturer does not demand more just for the brand. The high level of Navien boilers is beyond doubt.

What models are included in it?

The Deluxe series includes the following boiler models:

• Deluxe.
• Deluxe Plus.
• Deluxe Coaxial.
• Deluxe Atmo.

The first three models practically do not differ from each other, having only minor differences in the design of the chimney or the amount of gas supply.

The Atmo model is a boiler with an open combustion chamber, which is distinguished by the supply of air directly from the room.

All types of boilers are available in various power options:

• 13k (kW).
• 16k (kW).
• 20k (kW).
• 24k (kW).
• 30k (kW).
• 35k (kW).
• 40k (kW).

Some models are created on the basis of one standard size with software-limited functionality.

Thus, boilers with a power of 24 and 16 kW are of an identical design, but the 16 kW models have slightly reduced power. This gives the units a noticeable power reserve, allowing them to freely overcome load changes and external influences .

Competitors

Table. Comparison with competitors and analogues Photo ModelRatingPrice

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.

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.

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.

Insulation of the house

Proper insulation of premises reduces operating costs for gas heating while maintaining a given temperature regime. An important indicator of the economic feasibility of thermal insulation characteristics is the payback period of the insulation system used.

Thermal insulation of a house is a very broad concept that includes a set of works to improve the thermal insulation characteristics of any building surfaces, represented by walls, floors and ceilings. Various types of materials and technologies are used in thermal insulation measures.

Insulation of the house is carried out in stages, taking into account the material used to construct the walls, floor and ceiling, as well as the type of windows and doors installed. Proper implementation of thermal insulation ensures not only the comfort of year-round living, but also significant savings in gas consumption, which is especially important in the context of regularly rising tariffs.

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.

Other ways to optimize fuel consumption

Perhaps, if you are faced with high gas consumption, you do not need to reduce the boiler power. Measures should be taken to optimize the operation of the boiler.

The thermal energy created during the combustion of gas in a heating boiler is additionally consumed by the equipment in order to compensate for heat losses. Optimizing fuel costs will be especially relevant in winter, when the ambient temperature is sharply negative.

In order to reduce heating costs, it is necessary to provide an integrated approach to the issue of preparing premises, including insulation, replacement of windows and doors, and elimination of cold bridges. Among other things, it is mandatory to check the performance of all gas equipment in use and make adjustments to the mode of their normal operation.

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.

Depending on the model and series, some additional components may be present. Constant development and improvement of the design contributes to the complication of old and the emergence of new elements .

Weather-compensated automation

You can adjust the power level of a gas boiler using weather-dependent automation. A special feature of the delivery set is the presence of external and internal temperature sensors. Thanks to the automatic mode, you can make changes to the power without overheating the indoor air.

The most popular manufacturers today produce high-precision and modern weather-dependent automation kits for most models of gas boilers. However, the basic supply of equipment, as a rule, does not include such systems, so they must be purchased separately.

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.

Download instructions

You can download the instructions here.

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.

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.

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.

IMPORTANT!

Setting up the boiler should be entrusted to specialists from the service center. Doing the work yourself is only possible if there is an urgent need and there is no warranty agreement.

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.

Navien boiler error 10

This error is related to the smoke removal system of the gas boiler. Combustion products must be removed; for this purpose, the boilers are equipped with a fan. To control the operation of the fan and determine the presence of permissible draft for boiler operation, a differential relay is used, which is connected to the turbine by two plastic tubes. When the fan is running, a vacuum is created, the relay closes, and the boiler functions normally.

Reasons for error 10

may be a clogged chimney, the presence of reverse draft, or incorrect connection of the air pressure control sensor to the fan. For the latter case, you need to check that the yellow tube is connected to the bottom of the fan, and the transparent one is connected to the top, and the tubes themselves are not damaged, deformed or condensation inside.

Increased resistance in the chimney can occur due to direct gusts of wind or blockage of the chimney (bird nest or cobwebs, freezing in winter). That's right, the location of the chimney should be taken into account the direction of the winds of a particular region at the design stage and the chimney should not be installed on the leeward side of the house.

We focused on the most common malfunctions of Navien boilers, but in fact there are significantly more error codes. Methods for checking and troubleshooting are the topic of a separate article. For convenience, here is a summary table of codes with a brief description:

Price range

In most regions of Russia, the cost of Navien Deluxe boilers is in the range of 27-32 thousand rubles. First of all, prices depend on the power of the unit.

In addition, logistics and other factors, overhead costs, etc. are actively involved in pricing. People planning to purchase a boiler should take into account that the total cost will be slightly higher than the price of the unit . This happens because delivery, installation and connection of the device are required.

All these measures should not be carried out independently, since service centers refuse warranty service if the installation was not carried out by their employees.

NOTE!

Some stores do not have the authority to draw up a warranty agreement. This point should be clarified, and if necessary, independently conclude a warranty agreement with representatives of the service center.