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.

Characteristics from the technical side

In our market, the Navien company offers double-circuit wall-mounted gas boilers with the following characteristics:

1. Combustion chambers of any type - both open and closed.
2. The power range of manufactured devices allows heating rooms with an area of ​​30 to 400 square meters. m.
3. The dual-circuit modification makes it possible to heat water for the domestic hot water system.
4. Heat exchangers are made of stainless steel.
5. Both liquefied and natural gas can be used to operate boilers.
6. The amount of water produced for the hot water system is determined by the power of the device. For example, a 13 kW device produces water in a volume of up to 11 liters per minute, and with a power of 30 kW - about 17.
7. The electronic control unit has the function of protecting the device from voltage surges in the electrical network.
8. Most models of heating boilers are equipped with a remote control unit that has the following capabilities:
9. the unit displays data on the set temperatures of heating water, hot water in the DHW system and indoor air;
10. the display provides information about any problems that have arisen in the operation of the units;
11. buttons on the unit turn the boiler on and off, set the temperature;
12. The built-in air temperature sensor provides information for regulating the gas burner.

The delivery package for each Nevien gas boiler includes an instruction manual, which describes in detail the rules for working with the control unit. More detailed technical characteristics of the device are also given there.

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°.

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.

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.

Customer Reviews

1. Nikolai V. “When choosing a gas boiler for myself, I read a bunch of reviews about these units. I liked the reviews on the Navien gas boiler. Apart from complaints about periodic dull tapping, there is almost nothing about other shortcomings. Well, I decided to take Navien. I’ll say it briefly – I don’t regret it.”
2. Andrey O. “I took Navien Deluxe Coaxial 20k for my dacha. The area of ​​the rooms is about 80 square meters. m, there is enough heat to spare even at minus 25 outside. Now you don’t need to heat the stove or chop wood – it’s beautiful! It makes a little noise, but I hung it in the kitchen - if the door is closed, you can hardly hear it in the bedrooms.”
3. Oleg Kh. “I purchased the Navien Deluxe on the advice of a colleague. The first thing I immediately liked about this boiler was its price. Compared to other companies, the difference is noticeable. Well, of the functions, I am most pleased with the heating mode with temperature control in the rooms. I haven’t noticed any shortcomings yet.”

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.

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

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.

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.

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.

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.

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.