What temperature should I set on the Navien heating boiler?

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.

Features of the Navien gas boiler

Navien produces devices of various capacities designed to provide heating for gas-fired homes. However, the technical features of the models allow them to be converted to an autonomous gas supply, that is, connected to cylinders.

A wide range of models allows you to choose a model to suit any needs and capabilities.

There are boilers:

• wall and floor;
• single-circuit and with hot water supply;
• with atmospheric and closed combustion chamber;
• with different heating outlet sizes (three options: 20, 25, 32);
• with different chimney diameters;
• and of course, the models differ in power and size.

The manufacturer did not neglect the design.

The devices have an elegant appearance and fit well into a kitchen or any other interior.

Security systems supplied with Navien boilers:

• Modulated turbocharging.
• Protection against coolant freezing.
• A special chip (SMPS) protects against 30% power surges.
• A control panel with a temperature sensor that allows you to maintain t constant and adjust the operation of the boiler to special circumstances.

Modulated turbocharging. The system is based on the interaction of a fan supplying combustion air and a pressure sensor (APS).

The fan rotation intensity changes in proportion to how much gas is supplied at the moment. This allows you to use resources economically and increase efficiency without wasting fuel.

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.

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.

The principle of operation of the anti-freeze system. When the temperature in the pipes drops below -10°, the pump automatically turns on, which circulates the coolant and prevents it from freezing.

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

Classification

Navien Ace gas boilers are divided into two categories:

The first unit is a simple and traditional boiler with an open combustion chamber, which uses atmospheric exhaust of combustion products. The second is more advanced and has a turbocharged burner. This allows you to efficiently supply gas and burn it when the supply is unstable, which is associated with pressure surges. In addition, the second option is equipped with a special SMPS control system, which is based on highly sensitive chips. They are responsible for monitoring and regulating gas combustion processes. In all other respects, both options are no different from each other.

Both models can be classified as universal equipment. Adapted to difficult operating conditions, they are considered one of the most economical heating devices present on the Russian market today. An important component of the design is the remote control. This is very convenient when you can set modes and indicators from a distance, quickly making adjustments.

But what’s surprising is that Navien gas boilers can operate not only in automatic mode, but also in manual mode. This is especially convenient when the temperature outside the window changes sharply. Manual installation allows you to more accurately set parameters and indicators, which eliminates the smallest errors during the operation of heating equipment.

Navien ace gas boilers can be called universal units. They operate on natural gas or liquefied bottled gas. To switch from one type of gas to another, you only need to change the burner. No other changes are required.

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.

You can adjust the temperature in heating within the range from 40 °C to 80 °C with a plus sign.

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.

Precautionary measures

The room where the boiler is located must be well ventilated.

Gas cylinders, if used, should be stored in a separate cool room.

Do not dry things on gas heating pipes.

The power supply parameters must meet the requirements for the specific model (For example, 220V, 50 Hz).

The unit must be plugged into a separate outlet (other devices cannot be plugged into it); extension cords and adapters are not allowed.

Do not touch the body of the device with wet hands or plug it into the mains.

A working device must be in a protective housing.

You cannot install or repair gas equipment yourself - this is the work of government services. Once a year, these services will conduct a preventive inspection of the boiler.

Periodically you need to check all joints of the boiler and pipeline for leaks. Applying a thick soap solution will show if there is a gas leak.

If bubbles appear, immediately turn off the gas valve, provide air flow and call emergency services.

What to pay attention to during installation?

Since instructions are included with the equipment, there are no problems with installing and connecting the device. Doing it yourself is not a problem. Even a non-professional can understand the instructions. Moreover, it is written in Russian.

The only thing that experts ask you to pay attention to is the method of removing carbon monoxide. They can be discharged through a regular atmospheric chimney connected to the smoke exhaust system of the house or installed as a separate structure. But if you are not satisfied with any option, you can make a coaxial chimney. Its installation is several times simpler. But keep in mind that coaxial structures are used only when the heated area of ​​the house does not exceed 110 m². They can be installed with boilers whose power does not exceed 11 kW.

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.

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.

Draining the water may be necessary during system maintenance.

Safety precautions

Safety instructions are provided in each Navien boiler user manual, which contains all the important information for the safe use of the device. Failure to comply with any instructions may result in death, serious injury, or damage to the product being used.

The following abbreviations and symbols may appear on the Navien Ace boiler or in the instructions:

• OV – heating water;
• DHW – hot water supply;
• Cold water supply - cold water supply;
• a triangle with an exclamation mark inside - a threat to life if safety rules are not followed;
• crossed out circle - prohibited actions;
• a circle with an exclamation mark inside – mandatory actions.

The Navien gas boiler is an excellent alternative to expensive European-made analogues, not inferior to them in quality and durability. The main advantage over other European devices is the availability of warranty service.

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.

Heating boiler Navien: the best of its kind

The Navien boiler is considered the most popular among heating and heating devices. The company presents only high-tech models for installation in all kinds of premises. On sale, everyone will be able to find a device that will serve them well for a very long time - and all this at a fairly attractive price. Wall-mounted solutions are best suited for heating apartments and small private houses.

Korean Navien gas boilers are double-circuit boilers that have an open and closed combustion chamber. They are used for heating and heating water for domestic and technical purposes. The entire automation system and documentation have been translated into Russian, thanks to which everyone can easily study the existing instructions, as well as successfully save on heating costs by continuously maintaining the desired temperature in the premises. Uninterrupted and safe operation of the boiler is possible even in conditions of frequent power outages. If the voltage in the network fluctuates, the SMPS protection system is activated, after which the boiler continues to operate properly. In particular, thanks to this function, these double-circuit boilers have a long service life without breaking down or requiring subsequent repairs.