There are other letters in the boiler labeling: pro and plus, VUW and VU. Sometimes it becomes necessary to understand which specific version of the boiler is installed. The Pro model is a simplified (economy) version of the boilers, supplied only in a double-circuit design.

Differences between Pro and Plus:

lack of hot start function (Aqua-Comfort system);

a smaller secondary heat exchanger (13 plates instead of 19);

manual regulation of the circulation pump;

open front panel with smaller display.

A single-circuit boiler is marked with the symbols VU, a double-circuit VUW.

Functionally, boilers with an open combustion chamber are distinguished by the presence of special AtmoGuard sensors in the smoke exhaust system and a draft stabilizer, because the ingress of combustion products into the room is unacceptable. The control is very simple: the temperature sensor is located in the space between the draft stabilizer and the combustion chamber and, for example, when the draft is overturned, the flue gases will certainly change its temperature, which immediately fixes the control board and stops the boiler after 2 minutes. Gas boilers with an open combustion chamber, despite all the protections, are recognized in the European Union as unsafe and prohibited for operation.

In a boiler with a closed chamber, a collector of waste gases is used, which are forcibly removed by a fan (smoke exhauster) and the presence of traction is controlled by special devices (for example, a Venturi or a Pitot tube).

Sequence of commissioning of Vaillant boilers

thoroughly flush the heating system before filling (large particles left after installation works may damage the actuators)

check the condition of the automatic air vent on the circulation pump, if it is closed, unscrew it by 1-2 turns

shut-off valves on radiators or thermal heads must be fully open

fill the heating system to a pressure of at least 1 bar (usually 1.3 - 1.5 bar)

turn on the boiler and check the pressure, if necessary, also top up the system

be sure to check the gas deflector for leaks

Vaillant requires the system to be filled with treated water with a hardness not exceeding 20 German units and prohibits the addition of antifreeze or corrosion inhibitors to the system.

After the system is full, it is necessary to carry out the P0 bleeding program, in which only the pump will operate in a specially provided mode, and excess air is removed from the heating and DHW circuits

What checks are carried out before starting the boiler for the first time?

For further normal and safe operation, as well as maintaining the warranty, any equipment requires compliance with a number of conditions:

the voltage in the network according to the rules of the PUE and the obligatory grounding of the boiler (ideally there should be no potential between zero and “ground”, Vaillant allows no more than 1.5 Volts)

compliance of the system as a whole with the capacity of the installed equipment (lack of capacity for heating or hot water supply prohibits starting). Constant operation of the boiler at the power limit will quickly lead to failure of the unit.

verification of compliance with the chimney installation standards (for atmospheric boilers, the presence of draft, for coaxial chimneys, the chimney protrudes and tilts towards the street)

The installation manual also prescribes the installation of a coarse filter on the cold water supply to the boiler and on the return pipe of the heating system, as well as a gas filter.

It is better to study the commissioning process in more detail in the instructions for a specific boiler model.

The selection of the test program (airing, filling the system) is started by turning on the boiler and simultaneously holding the “+” button for 5 seconds. The selected program is activated with the “i” button. There are five preset programs for TEC series boilers.

Inspection and maintenance of the boiler

The gas boiler is recommended to be serviced annually. Basically, maintenance is reduced to visual inspection and preventive cleaning of the main components: heat exchangers, combustion chambers, coarse filters and the condition of the expansion tank.

Clean the outside of the primary heat exchanger from soot with a soft brush. In no case should you use brushes with metal bristles, because the copper plates are treated with a special anti-corrosion coating and its damage will lead to a serious reduction in its service life. because of design features In most cases, the primary heat exchangers from the inside cannot be flushed, its service life can be seriously reduced by the use of antifreeze or frequent replenishment with tap water of increased hardness.

The secondary heat exchanger (DHW), due to the constant passage of water through it, is more susceptible to the formation of deposits and scale, but at the same time it can be successfully washed with a certain frequency. Heat exchangers are washed with special installations (boosters) using special means. The process consists in long-term (sometimes up to several hours) pumping of chemicals that help dissolve and wash out scale. Valiant recommends flushing with normal acetic acid.

The expansion tank is designed to compensate for the thermal expansion of the heating system and is also subject to annual maintenance. It consists in measuring its pressure. The measurement must be done on an empty boiler and, if necessary, pumped up to the system static pressure (approx. 1-1.2 bar). If water comes out of the control fitting, this indicates that the tank membrane is not tight and the need to replace it.

It is imperative to rinse and clean the heat exchangers in a timely manner, because dirt and scale deposits reduce the thermal conductivity and flow area, which leads to a decrease in the efficiency of the boiler and overheating, and subsequently costly replacement.

It is recommended to set the hot water supply temperature so as not to dilute it with cold water, thus ensuring minimum heating. The lower the hot water temperature, the lower the scale formation rate.

Coarse filters are nets, so their maintenance is reduced to removing and rinsing under running water to the desired state.

A gas burner can become clogged and build up over time from combustion products, and cleaning is usually easy with a soft brush and vacuum cleaner. If there is heavy dirt, it can be easily removed.

Diagnostics and failures of boilers

It should be noted that Vaillant equipment is one of the safest among all the others. The number of settings, parameters, checks here is significantly greater than in boilers of other brands. Boilers with displays can display status codes, diagnostics (two levels), faults and setup programs. The average user will only be interested in the trouble codes, so everything else is mainly intended for service specialists.

Also, the vailant automation keeps a history of all errors, which makes it very convenient to diagnose and troubleshoot the boiler. At any time, you can view the last 10 errors that were on the boiler (to display the list, use the "info" and "-" buttons).

Error f33 vaillant how to fix and what to do?

Occurs only in turbocharged boiler models. The source of the error is the pressure switch in the exhaust pipe. The logic of operation of all modern gas boilers is approximately the same. When a request for ignition is received, the control board turns on the fan (smoke exhauster), which creates a vacuum. When the required thrust is reached, the contacts of the differential relay are closed and thus a signal is transmitted to the board to open the gas valve and ignite the burner. Accordingly, if there is no signal from the relay or it is in a closed state after the fan is turned off, the vaillant automatics generates error f33.

Vilant cauldron error f33 the reasons:

the fan does not work (can be checked visually)

breakdown of the pressure switch (condensate can accumulate in the tubes, which, flowing down into the sensor, makes it unusable;

an error in the installation of the exhaust pipe (condensate can also accumulate and flood the relay)

clogging of coaxial pipes, preventing normal air flow

clogged pitot tube (accumulated dirt or insects)

You can check the operation of the relay by creating your own vacuum through the tube (a characteristic click should occur). It happens that the relay "sticks", ie in the normal state, it will be closed, which can be checked with an ordinary multimeter. In this case, it will have to be replaced.

It happens that the tubes themselves or the pitot tube are damaged, for example, from exposure to high temperatures.

The slightest change in shape can affect the reading and cause error F33.

It is worth noting that this is a problem for almost all gas boilers. Some manufacturers solve it by installing a special widening (this is what BAXI did) to collect condensate, and some even make heated tubes to evaporate it.

Vilant boiler error f28 what to do?

This error can occur both accidentally and require the intervention of a service technician. Error f28 occurs when unsuccessful attempts to ignite the gas burner.

What could be the reasons errors f28 boiler wilant:

no gas is supplied to the burner

low gas pressure at the gas valve outlet

defective gas valve

problem with ignition electrodes and flame presence electrode

improper boiler grounding

malfunction of the electronic board (possible)

To begin with, you can use the Clear error button (flame with a cross). It is possible that the ignition failure was accidental and the operation of the boiler returns to normal.

You can check the integrity of the wires going from the electrodes to the control board and, at the next start-up attempt, visually check that the electric spark pierces exactly on the burner body, and not somewhere else.

Service specialists check that the boiler is properly grounded and that the electrodes are in good condition, as well as the pressure at the outlet of the gas valve. If all the nodes are normal and there are no violations, then the diagnostics of the electronic board will most likely be required.

It is not worth changing the control board right away. In most cases, it can be repaired successfully. Repair will cost significantly less.

The Vilant boiler simply does not turn on

If the display of the boiler does not light up, while you are sure that it is securely connected to the mains, then most likely the board has broken. Unfortunately, the self-diagnosis program does not record internal errors in the operation of the board, and in case of damage, the boiler will simply go out. Quite often, this damage can be seen visually when examining the board.

We have everything you need to rebuild the boards of TEC and MAX boilers. Here is an example of repairing one such case (the power module burned out on the board):

The refurbishment was completed within a day and the fee was passed on to the satisfied customer.

Vaillant is a high-quality and reliable technique, but electronics breakdowns still sometimes happen. The boiler board is one of the most expensive elements of it, therefore, turning to us, clients save an impressive amount of money. We have been doing repairs for a long time and all spare parts are always available, and the repair takes a minimum of time, which is especially important when the breakdown occurred during the heating season.

Date of publication 09/11/2014

Vaillant supplies to the Russian market a wide range of equipment for heating and hot water supply.

The range of gas heating equipment includes:

gas boilers, both wall-mounted and floor-standing (single-circuit / double-circuit);

flow-through and capacitive gas water heaters;

condensation equipment.

In this article, we will describe the errors that you may encounter during the operation of the Vaillant boiler. It is best to entrust equipment repairs to a qualified specialist, and do not try to fix everything yourself.

E11 - blocking associated with incorrect connection of the NTC sensors of the supply and return lines.

E12 - blocking 150 seconds.

E13 - blocking for 10 minutes.

F.00 / F.01 - there was an open circuit in the supply NTC sensor circuit or a breakdown of the sensor itself, cable or connection plug.

F.02 - opening of the NTC sensor of the filling temperature. Most likely, the plug is not inserted or is not inserted securely, the NTC sensor or cable is broken.

F.03 - the storage NTC sensor (VSC) has opened.

F.04 - malfunction of the sensor, cable or connection plug, which caused an open circuit in the return NTC sensor circuit.

F.05 - (only for Vaillant Atmo series boilers) open circuit in the external boiler draft sensor circuit, breakage of the sensor, cable or connection plug.

F.06 - (only for Vaillant Atmo series boilers) open circuit in the internal draft sensor circuit, sensor failure, cable or connection plug.

F.10 / F.11 - K3 return NTC sensor (more than 130 ° C).

F.12 \u200b\u200b- short circuit - NTC of filling the drive (more than 130 ° C).

F.13 - short circuit of the hot start sensor.

F.14 - Short circuit of the return NTC sensor (more than 130 ° C), malfunction of the sensor, cable or connection plug.

F.15 - (only for Vaillant Atmo series boilers) K3 external draft sensor, breakage of the sensor, cable or connection plug.

F.16 - (only for Vaillant Atmo series boilers) K3 internal draft sensor, faulty sensor, cable or connection plug.

F.20 - STB sensor triggered.

F.22 - “dry running”, possible causes: not enough water in the device, broken cable or NTC sensor suitable for the pump, pump jammed, poor water circulation, electronic board defective.

F.23 - unacceptable minimum of water in the system, it is recognized by comparing the return and supply water temperatures.

F.24 - lack of water in the system - very high temperature, you should make sure that the pump is not jammed or broken.

F.25 - shutdown of the safety device, may occur due to too high temperature of the exhaust gases or a break in the cable harness.

F.26 - lack of proper current for the gas valve stepper motor.

F.27 - presence of a flame when the gas valve is closed. It is most likely due to a malfunction in the control of the presence of a flame or a breakdown of the gas magnetic valve.

F.28 - blocking the ignition of the device.

F.29 - failure in operating mode (the flame went out during the operation of the device, the attempts to ignite were not successful). Reasons: gas supply from the gas pipeline was interrupted, ignition transformer malfunction, exhaust gas recirculation, error in connecting ground to the device.

F.30 - Boiler probe break (ecoCRAFT / 3).

F.31 - Short circuit of the boiler probe (ecoCRAFT / 3).

F.32 - (only for condensing boilers) fan speed deviation.

F.33 - after 30 min. after a heat demand, the gas-air pressure switch does not close the contact.

F.34 - when the fan stops, the manostat does not turn off.

F.35 - error in the air line / gas outlet.

F.36 - (only for Vaillant Atmo series boilers) the flue gas sensor has detected the flow of flue gases into the room.

F.37 - deviation of the fan rotation frequency (low speed during operation). The pressure sensor is missing or broken (failure is not associated with a short circuit or open circuit).

F.42 - short circuit of the coding resistor.

F.43 - break of the coding resistor.

F.49 - undervoltage on the bus is fixed.

F.55 - CO sensor errors.

F.56 - combustion limit value exceeded.

F.57 - self-test is unsuccessful.

F.60 - gas valve - error # 1, associated with a malfunction of the electronics or the fact that the power lamp on the panel does not light up.

F.61 - gas valve - error # 2, associated with an electronics malfunction, the power lamp on the panel does not light up.

F.62 - after shutdown, the flame lasts for more than 4 seconds, this phenomenon is associated with clogging of the injectors or the gas manifold, electronics malfunction.

F.63 - EEPROM error, checksum error, associated with a malfunction of the electronics or EMV.

F.64 - ADC error.

F.65 - when the electronic unit overheats, ASIC blocking.

F.66 - data transmission error, can be associated with both a malfunction of the display itself, and with a breakdown of the cable leading to it.

F.67 - GFA error.

F.70 - the error occurs when the display and electronics have been replaced at the same time, and the boiler version number has not been entered again.

F.71 - the sensor on the supply line is faulty.

F.72 - breakdown of the flow / return sensor.

F.73 - incorrect signal from the water pressure sensor.

F.74 - incorrect signal from the water pressure sensor, associated with too high pressure.

F.75 - pressure is not recognized when the pump is turned on.

F.76 - the overheating protection device on the primary heat exchanger has been triggered.

F.77 - maximum water level in the pump.

F.78 - Incorrect electrical connection with accessory.

F.82 - anode tester error.

The company "Vailant" is considered one of the most popular due to the variety of range of heating equipment, as well as equipment for arranging hot water in country house... Modern boilers from this manufacturer are considered one of the best. Thanks to German technology, these devices are able to operate from a gas supply. In this case, the models are both wall-mounted and floor-standing.

However, regardless of the quality of production of a particular device, it can malfunction. In this case, errors can be caused both by breakdowns in the boiler itself, and by carelessness shown by the user. If we talk about heating boilers, then in this case, error F28 may appear on the Vilant Turbo Tek boiler or any other model. Most often, such troubles are caused by improper operation of the unit. Let's consider this issue in more detail.

Operation errors

Very often, incorrect actions of the owner of the equipment can lead to a malfunction of the device. For example, the Vilant gas boiler may give error F28 due to improper use of equipment.

To exclude such breakdowns, first of all you need to remember that the units of this company are double-circuit. However, this does not mean that they can be used to simultaneously heat and heat water. By default, it is written in the boiler settings that it should work for heating. As soon as the hot water tap opens, the device automatically switches to heating mode. When the valve closes again, the unit automatically switches to heating mode.

If you try to configure it to work in 2 modes at the same time, then this will inevitably lead to certain malfunctions, including the F28 error. The Vailant boiler is simply not designed for such forced work.

Also, the causes of malfunctions can be malfunctions in the gas or power supply. In this case, you need to call a specialist and check all the systems at home.

In order not to rack your brains over how to eliminate the F28 error in the Vilant gas boiler, you must carefully study the instructions before using the device. It is quite simple and straightforward even for a novice user at an intuitive level. Additionally, the device is equipped with a special display, which shows all the code designations with the name of certain malfunctions.

If any error occurs, it is necessary to clarify its number and read the annotation in the instructions. Some of the faults can be corrected by yourself, but in most cases only specialized assistance may be required. To avoid trouble, it is recommended to call a foreman before each heating season, who can check the boiler for leaks, as well as for high-quality performance.

Incorrect pressure in the unit is the most common reason for the appearance of error F28 in the Vilant gas boiler. What to do in this situation? First of all, experts recommend maintaining the pressure level at the middle gray strip of the sensor. If the arrow goes into the red zone, then this indicates that the indicator is very much lower. This can seriously affect system performance.

Adjustment features

The boilers of this manufacturer are easy to control. However, this does not mean that each person can independently cope with such a task. It is best to make the settings together with one person turning the tap and the other tracking the position of the pressure arrow. To adjust the temperature of water or heating, you can use special valves that are located on the control panel. In this case, how hot the water is will be displayed on the display. Thanks to this, you can increase the temperature or lower it by turning the tap to the required position.

Also, that the time has come to figure out how to eliminate the F28 error in the Vilant boiler may be signaled by special light sensors on the device panel. The green light comes on when hot water is being used. A yellow light indicates that gas is burning. If the red LED turns on, this indicates a problem with the system. It is also worth noting that only water is poured into the boiler. Experiments are not worth it.

The F28 gas boiler "Vilant" can give error due to incorrect installation of the unit. Therefore, the installation of the appliance must always be coordinated with the gas distribution company.

It is also necessary to correctly determine in which hole in the wall the chimney will pass. Some parts of the structure of the house may be too strong and thick for this technique.

When connecting the boiler for the first time, it is imperative to use a voltage stabilizer. It is important to keep an eye on the polarity.

In order not to face the fact that the "Vilant" boiler gives an error F28, it is necessary to correctly connect. You need to understand that only professional specialists will be able to carry out this procedure in accordance with all the requirements.

If the installation is carried out independently, then it is necessary to draw up a project of the heating system and certify it with the appropriate authorities. With self-assembly or poor-quality installation, serious problems may arise.

Diagnostics

Error F28 appeared on the Vilant boiler, what should I do? First of all, if such malfunctions occur, you should not immediately start to panic. Not everyone knows that absolutely every boiler from a German company is equipped with its own diagnostic system, which is part of the electronic unit.

All the necessary data on the operation of the system can also be obtained on the unit's liquid crystal display.

You can also make independent diagnostic measures. First, you need to assess how efficient the device is. To do this, first of all, the outlet and inlet connections are checked. Make sure that the carbon monoxide, DHW and condensate outlets are completely sealed. It must also be ensured that there is no serious contamination in the pressure relief chamber.

The next step is to check all electrical wiring. To do this, you need to make sure that the connectors and plugs are tight and do not dangle. Salt or limestone deposits can accumulate in the condensate drain and siphon, which can also affect the performance of the unit. If such contamination appears, it is imperative to get rid of them.

Sometimes the gas burner of the unit is clogged with carbon deposits. In this case, it must be cleaned, as well as the inner walls of all working chambers and the chimney must be processed.

Boiler "Vilant": error F28

If we talk about this code, then it may indicate several malfunctions at once. For example, the cause of this phenomenon may be a breakdown of the reducer, which is responsible for the gas pressure. Also, the counter could fail.

In some situations, the F28 gas boiler "Vilant" gives error when the gas is oversaturated with air. It is also imperative to monitor the pressure. In order to change these values, you must check the settings yourself.

Some users accidentally close the gas valve, which may also cause an error. In addition, cable breaks often occur. A gas magnet may also fail. Additionally, you need to check the ignition transformer and make sure that there is no carbon deposits inside the system.

Least of all this error occurs when there is a breakdown in the control board. Therefore, regardless of whether the Vailant boiler produces 24 kW or another model gives an error F28, it is recommended to check some nodes and make sure that the unit is operating in the correct mode.

Pressure check

This is another procedure that you can perform on your own in the event of a malfunction. In order to check the pressure, it is necessary to remove the casing of the unit. After that, you need to tilt the junction box and close the gas shut-off valve. The next step is to loosen the sealing screw located on the gas valve. After that, the digital pressure gauge is connected. Next, you can open the gas shut-off valve and commission the device. After that, a pressure measurement is performed. If these manipulations did not help, then you can try other ways.

Check and adjust the minimum amount of gas

Particular care must be taken during the initial connection and commissioning of gas equipment. To check the minimum amount of gas and to avoid subsequent errors, it is necessary to perform several simple manipulations:

• turn off the boiler;
• loosen the sealing screw, which is located on the gas valve;
• connect a manometer;
• press the button with the plus symbol on the display and, while holding it, set the “i” assignment switch;
• continue to hold “+” until “P.0” appears on the device’s screen;
• once again press the button with the “+” sign and wait for the appearance of “P.2”;
• press the “i” button and start the automatic diagnostic system, then the boiler can be switched to the minimum gas supply;
• press the “i” button and wait for the digital value from 0 to 99;
• press the “+” or minus button several times until the pressure is set to the correct value.
• save the changes, for this you need to hold the “i” button for about 5 seconds.

In this case, the unit will automatically exit diagnostic mode. After that, it will be possible to turn off the device, remove the pressure gauge and reinstall the sealing screw.

Checking the functioning of the boiler

And after the unit has been installed, it is also necessary to perform several manipulations that will make sure that the performance of the unit is at the right level. To do this, connect the device and check the gas supply lines, heating systems and other pipelines for leaks.

You must also make sure that the burner flame readings are in the correct position.

Features of heating

During the initial connection and the initial stages of operation of the unit, it is necessary to monitor all stages of its operation. In order to turn on the heating, it is necessary to activate the device and make sure that a request is displayed on the monitor, which indicates the supply of heat. After that, press the “i” button and pay attention to the status indicator. As soon as the “S.4” heat supply request appears on the screen, this will indicate that the system is operating in the correct mode.

Finally

Most often this error is caused by incorrect operation of the unit. Therefore, do not rely on yourself. It is better to seek help from specialists.

Buy GSM thermostat ZONT H-1V - it means to own a compact thermostat with any operator’s own SIM card, which allows you to control the indoor climate from any phone (satellite, mobile or fixed line), tablet or PC. Most boilers have terminals closed by a jumper (corresponding to the boiler turned on) for connecting a room thermostat. It is precisely to these terminals that the ZONT-H-1V modules are connected: this jumper is removed and the ZONT H relay contacts are connected in its place.

The Micro Line company launches the ZONT H-1V thermostat model, which is almost identical in functionality to the GSM Climate Zont H-1 thermostat, which differs only in different cases and some technical features:
- The relay in H-1V holds 220V, and in H-1 it is designed for 120V;
- ZONT H-1V has an adapter 220V-\u003e 5V for converting a high-voltage boiler alarm signal (available in Vaillant) to a low-voltage signal for ZONT input;
- The backup battery in the H-1V module is built-in, but in the H-1 it is not in the basic configuration and can be purchased separately;
- The firmware for these modules are exactly the same, and the schemes are practically the same.
- Mounts on a DIN rail

ZONT H1V will provide economical fuel consumption spent by the boiler for heating, allow you to remotely set the temperature in the house and control the health of the boiler, as well as remotely control its operation!
Agree that manual control of heating devices is quite troublesome, but at a distance it is almost impossible. With the ZONT H 1V unit, remote control of the heating system is not only possible, but also extremely simple and convenient! No matter how far you are from home, just call or send a command from your mobile phone or via the Internet to change the mode of the boiler and ensure a comfortable temperature in the house. Convenient, isn't it?

New opportunities!

Additional functions of the device allow not only to save heating costs and control the operation of the boiler, but also to monitor the safety of the facility! The user can connect additional sensors, for example, movement, opening, water leakage, gas leakage, fire and smoke sensors, etc. Information is transmitted via mobile communication channels and the Internet.

Features of the ZONT H-1V thermostat

It supports various predefined temperature conditions:
Economy - economical fixed temperature.
Comfort - comfortable fixed temperature (usually several degrees higher than economical).
Schedule - maintaining the set temperature on a schedule.
Off - anti-freeze mode
Alarm - thermostat operating mode with a faulty temperature sensor.

The module will call only the owner’s telephone number or the trusted numbers identified by him, warning him of all changes or emergency situations. Accordingly, Zont h-1v can receive commands only from the owner or from “its” phones. Unauthorized access is absolutely excluded - even if someone dialed the number by mistake, the device will ask for a password that only the owner knows and, for example, other family members or proxies. In addition to SMS-management, the ability to control through the voice menu is implemented.
In fact, the GSM ZONT H-1V module acts as your personal assistant - I called him, gave the command, for example, to heat hotter in advance, and the whole family, as a result, will come to a warm and comfortable house. Or vice versa: they forgot in the morning, leaving for work, to turn down the power is not a question, it can be done right from work, via the Internet.

Unlike competitors, temperature cannot be controlled from the front panel, and all monitoring and control operations are performed using either a personal computer or mobile devices: a smartphone or tablet. This allows the owner to control the situation, wherever he is, while significantly reducing the cost of equipment.
The ZONT-H1V unit works even in the event of a loss of cellular communication, for example, following a predetermined weekly schedule.
It is possible to use control commands in the form of SMS text and even using the voice menu.
It uses a simple, functional and user-friendly graphical interface through a web browser or mobile application. All data is stored on the server and at any time you can see convenient and clear graphs of the system, information messages or make the necessary settings.

NEW!

Weather-dependent automation - energy-efficient regulation of heating taking into account changes in street temperature (the function is available for modules with firmware version 122: 74 and higher)

How does the ZONT H1V thermostat control the boiler?

The thermostat measures the room temperature and turns the output relay on or off, controlling the operation of the boiler in heating mode so that the indoor temperature corresponds to the set value.
It controls the temperature in the house and on the street, the supply voltage, the technical condition of the boiler and signals in case of an accident or a power outage. If the values \u200b\u200bdeviate from the set values, he informs the owner in any pre-selected way: by call, SMS message or notification via the Internet.

To use the Internet service, you do not need to install additional software, work is carried out using any modern WEB browser. Access to the Internet service is carried out through a personal page on the server zont-online.ru
From a personal account on the zont-online.ru Internet service, it is necessary to set the values \u200b\u200bof the desired indoor temperature, as well as threshold levels for generating alarm messages when the temperature deviates to a critical (emergency) value.
The unit analyzes indoor temperature changes using its own remote temperature sensor. Depending on the measurements taken, it turns on or off the output relay, which controls the operation of the boiler in heating mode so that the indoor temperature matches the value of the specified operating mode.
In the event of a boiler malfunction, the system will immediately notify the owner of this event, thereby avoiding trouble.

Inputs, outputs and connected equipment

Thermal sensors (wire)
It is connected to the 4 and 6 contacts of the thermostat in accordance with the proposed scheme. Up to 10 units can be connected at the same time. The distance of the latter in the loop is not more than 100 m. Long branches from the main loop can lead to inoperability of all sensors.
Boiler control output
Contacts 1, 2 and 3 of the thermostat are intended for connection to a heating boiler. Contact No. 1 is common (O), contact No. 2 is normally closed (NC) and contact No. 3 (NO) is normally open. The device is connected to the boiler contacts intended for connecting a room thermostat.
GSM antenna
It is connected to a separate input and located in the room in such a way as to ensure the most stable reception of the GSM signal.
Main power + 12V
From the 220V network through the power supply (AC adapter 220 / 12V) from the delivery.
Backup power + 3.7V
From the built-in Li-ion battery.
Login 1 Analog input - pin No. 5.
Designed to connect: or security sensors; or “Boiler failure” signal; or room thermostat
Input 2 Digital input - contact number 8.
Designed to connect: or security sensors; or “Boiler failure” signal; or a room thermostat; or the OpenTherm Interface and the ML-489 Radio Module.
Important!
It is impossible to simultaneously connect to both inputs signals from an external room thermostat or signals "Boiler failure"
It is possible to simultaneously connect the OpenTherm Interface and the ML-489 Radio Module to Input 2

Functionality of GSM ZONT H-1V Thermostat

Remote control of the boiler can be carried out:
- SMS commands;
- when dialing to the SIM-card number using the voice menu;
- via the Internet (WEB-interface and mobile applications for Android and for devices based on iOS).

Convenient and simple WEB-interface with features:
- display of the current state of the boiler and room temperature;
- management of the boiler;
- temperature monitoring (inside, outside the room, coolant) for any selected period of time;
- scheduled boiler operation;
- alerts on the operation of additional sensors.

Various event alerts:
- when the measured temperature deviates from the set threshold values;
- about a boiler accident (provided that the thermostat is connected to the emergency exit of the boiler);
- about the malfunction of the temperature sensor and the transition of the thermostat to emergency operation;
- about the loss or restoration of power to the mains, while it is necessary to have a backup battery;

The event log
- a diary of measured temperatures for any period without statute of limitations;
- date and time of detection of the boiler accident;
- date and time of changing the operating mode of the boiler and thermostat;
- a list of executed control commands through the voice menu, SMS transmitted, software updates;
- date and time of power failure or restoration of power supply.

Signaling the status of additional sensors connected to the “Alarm” input of the thermostat;
Event Logging:
- temperature sensor readings;
- date and time of the boiler accident;
- changes in operating modes;
- voice menu commands
- SMS commands;
- software updates (software);
- power on / off.
Update the current version of the firmware of the block without turning it off and removing it from the user's personal account.

Wiring diagrams for the Zont H1V thermostat

Package Contents ZONT H-1V

Base unit: 1 pc.
External GSM antenna: 1 pc.
Temperature sensor (digital, wired): 1 pc.
Power supply (AC adapter) 220V / 12V: 1 pc.
220 / 5V boiler alarm signal converter: 1 pc.
Instruction manual: 1 pc.

Thermostat packaging

Technical characteristics of the GSM ZONT H-1V thermostat

Reference: ML13213
Manufacturer: MicroLine (ordered by Evan)
Supply Voltage: 10-28V
Maximum current consumption: 150 mA
Number of inputs: 2
Number of outputs (Type - dry contact, short-circuit / open): 1
Type of connected wire temperature sensors: DS 18S20
Type of connected radio sensors: ML-703
The total number of simultaneously connected temperature sensors (wired and radio): 10
Maximum allowable loop length with temperature sensors: 100 m
Maximum current through relay contacts: 1000 mA
Maximum voltage of switched relay contacts: ~ 220 V, \u003d 24 V
Voice interface: yes
WEB interface: yes
1-Wire Interface: yes
Operating temperature range: from -30 to +55 ° С
Frequency ranges of the GSM modem: 800, 900, 1800, 1900 MHz
Data Channel: GPRS
GSM antenna: external
Internal non-volatile memory: yes
Backup power: built-in Li-ion battery 103450-RSV-LD 2000 mAh
Time to exit to operating mode: no more than 50 seconds
Average Life: 7 years
Overall dimensions, mm: 90 x 50 x 55
Weight, no more: 0,200 kg
Enclosure: plastic on DIN rail
Additional compatible ZONT equipment: ML-489, ML-703, ZONT Home, OpenTherm interface, Astra-9, Astra 512, Astra C, IO 102-16 / 2, Astra 361, ML-711, ML-712

Gas heating equipment is most popular today in both private homes and multi-unit buildings. There are a lot of manufacturers producing high-quality gas boilers, among them the German company Vaillant.

Key features of Wilant products

Vailant company produces condensing equipment, gas heaters and gas boilers, both floor and wall. The range of boilers is quite large, they are made with one and two circuits. Double-circuit ones are most common in view of their function not only to heat the room, but also to provide hot water supply.

Any double-circuit gas boiler produced by Wilant has the following advantages:

1. Lightweight, quite compact;
2. Easy to use and safe;
3. Has a large power range;
4. High-quality, reliable and durable;
5. Its installation does not take much effort;
6. Has a modern design and control system;
7. Heats the room perfectly and is quite economical.

In addition, safety sensors are built into each boiler, mainly 3 of them, but in some models there may be more of them. The first sensor shuts off the gas in case the flame goes out, the second provides a safe outlet of combustion products, and the third monitors the temperature regime inside the unit. Also, each device is equipped with three bulbs with different colors on the control panel. The green light is on when the unit heats the water, the yellow light indicates the gas in the boiler, and the red light indicates any problems.

Despite the high quality and a lot of advantages, there are also disadvantages, among which stand out:

1. Dependent on electricity;
2. There is no expansion tank;
3. The high price of both the device itself and its components;
4. There is no possibility to close the control panel, which is not safe if there are children in the house.

The most common malfunctions and their causes

Despite the true German quality, like any other equipment, Vailant boilers are subject to various kinds of failures. If, nevertheless, this or that problem occurs, the device informs the owner about this by outputting an alphanumeric code to the LCD display, including the red light, as mentioned above. Each error has its own code.

If you study the topic forums where the owners of the boilers discuss their malfunctions, then the most popular queries are:

• error code F22, indicating lack of water in the device or its lack. It is worth checking whether the pump is jammed, whether the pump cables are firmly connected to the water pressure sensor, to look at the sensor itself or at the pump power. Possible still weak water circulation;
• error with code F28, in which the unit does not start at all. The reasons can be different: zero and phase are incorrectly connected, gas supersaturation with air, gas pressure too low, control board broke, the boiler is improperly grounded, cable break or connection error to the gas pipeline. You can solve some problems yourself by looking at the instruction manual. For example, check whether the gas valve is open or change the gas pressure in the boiler settings by 5 mbar;

• error code F29, in which the burner flame constantly goes out, and new ignition attempts are unsuccessful. The reasons may be: a gas boiler is improperly grounded, interruptions in the gas supply in the gas system itself, problems with the ignition transformer or with the gas valve. To eliminate this problem, it is worth checking the gas pressure, it may drop too low or see if there is enough air for normal fuel combustion;
• error code F36 (Vailant Atmo), in which combustion products go outside. Such a problem can arise due to poor ventilation in the room or poor draft in the chimney, or the room is too hot. You should also check whether there is sufficient indentation between the boiler and the wall;
• error code F75, in which the boiler pump is running and the pressure does not rise. There may also be several reasons: a breakdown of the pump or water pressure sensor, air entering the heating system, improper connection of the expansion tank, or insufficient water pressure. To fix the problem, you can try to clean the water pressure sensor or you will have to purchase accessories more powerful.

Possible malfunctions that do not happen so often

If the required error code is not in this list, this means that only the master will cope with it.

• F0, F Failure occurred in the temperature-controlled NTC sensor on the flow line (F0) or on the return (F1). It is necessary to check not only the sensor, but also its cable;
• F2, F3, F An NTC sensor malfunctioned. Perhaps the plug is badly inserted or the sensor or cable is broken;

• F5, F6 (Vailant Atmo). There is a problem with the operation of the sensor, which ensures the safe removal of combustion products. You need to check whether it is connected correctly, or the failure occurred due to a broken cable or the sensor itself;
• F10, F A short circuit has occurred in the flow temperature sensor (F10) or in the return (F11). Check everything described above;
• F13, F The temperature in the unit exceeded 130 degrees, and a short circuit occurred in the hot start sensor. Check everything described above;
• F15, F16 (Vailant Atmo). A short circuit has occurred in the sensor responsible for the output of combustion products. Check everything described above;
• F The boiler has overheated;
• F There is not enough water in the device, and the temperature between the supply and return lines is very different. It is worth checking the connection of sensors on both lines, the operability of the pump and cable or board;
• F The problem is similar to the previous one - not enough coolant. Check all the same as in clause 8;
• F The unit has shutdown due to excessively high exhaust gas temperatures. It is necessary to check the NTC sensor, cables and plugs;
• F The boiler indicates a flame, although the valve is closed. The reason may be a malfunction with the flame sensor or with solenoid valves;
• F32 (condensing boilers). Malfunctions with fan speed. Most likely, the problem is in himself, but you also need to check the board, cable and sensor;
• F33 (Vaillant turboTEC). The pressure switch does not close the contact after half an hour after a request for heat;

• F The voltage on the eBus bus has dropped. Perhaps a short circuit occurred in it or it is very overloaded;
• F A control signal is not sent to the valves. Check valves, cable and circuit board;
• F Failure to delay the shutdown of the valve. Check if it is leaking gas and nozzles are not clogged;
• F The electronics unit has overheated. The reason is either from outside or in the malfunction of the unit;
• F Low water pressure. Either the problem is in the sensor itself, or there is a short circuit in it;
• F High water pressure. The reason is stated above.

How to avoid problems with the Wilant boiler

First of all, before each heating season, it is worth calling specialists for planned prevention.

You can learn how to diagnose a Vaillant boiler using the following video as an example.

You must strictly follow the instructions for use of the device. For example, you need to follow the arrow that indicates the pressure in the device - it should be in the middle of the gray strip and in no case go to the red one. Also, the boiler should not work at its full capacity, so it will fail more quickly. Its service life also depends on the quality of the coolant - filters may become clogged. Of course, nothing can be done with water quality, but sometimes you need to check the filters.

Particular attention should be paid to the fact that in no case should you engage in setting up or checking the equipment if you do not have the necessary knowledge and skills, as there is a big risk of damaging the gas boiler or even harming yourself and others. In addition, if the device is under warranty service, then in case of unsuccessful self-diagnosis, you may lose the opportunity to use the warranty.

Therefore, you should always contact qualified specialists.

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