Honeywell gas automatic circuit diagram. Why is automation necessary for gas heating boilers? Let's consider the main advantages


The American company Honeywell was founded by Albert Buts immediately after his invention of the simplest control device for operating a coal furnace. Today, enterprise automation can be found in both domestic and foreign boilers.

The uniqueness of Honeywell products is the ability to select high-precision monitoring equipment for almost any purpose.

Automation for gas boiler Honeywell may have a simple device equipped with a mechanical regulator. It can also be manufactured as a highly sensitive unit with the ability to automatically adjust the operating mode, depending on the heating of the rooms and the ambient temperature.

What is Honeywell automation

If you describe in simple language, then the automation system for gas boilers from Honeywell is an operation control unit heating equipment. Depending on the modification, the main functions and tasks may change, but in general the main control is exercised over the following systems:

If we take into account the five main processes controlled by automation for Honeywell gas boilers, the role and purpose of this unit for the operation of water heating equipment becomes clear.

The main goal of the company is to ensure reliability and safety through the operation of the boiler controller. Both the budget series and the premium modification use only high-quality components that undergo mandatory testing in the factory.

How Honeywell systems work

As already noted, automation is a regular thermostat that turns on and off when certain conditions are reached. The more complex the automation unit is, the more more possibilities control it provides.

Modern versions of control valves are controlled by a microprocessor and have a built-in programmer for the boiler, which allows you to set the temperature regime several days in advance.

A conventional gas valve has simple design. The temperature regime is set using mechanical regulators, and the operating principle is based on the use of a thermocouple. Despite this device, mechanical regulator gas supply is no different in reliability from expensive analogs with digital control, but is inferior to them in the number of available functions.

Why do we need control systems from Honeywell?

Although the Russian consumer is primarily familiar with Honeywell because of what is included in the boiler package domestic production, in fact, the control unit can be found in European products, including well-known brands, for example.

Boilers equipped with modern gas automatics Honeywell operate in completely autonomous mode, independently changing settings depending on the weather outside. Control is carried out using a remote panel or remote control remote control. Adjustment of Honeywell automation in this case is also carried out automatically, using a special program.

Why is automation necessary? It serves two main purposes:

The automation is set up in the factory; on site, the technician may be required to connect remote room sensors to the controller and install all additional equipment.

Honeywell automation is enough a good option for use as control valves. In addition to high quality and reliability, the control unit has another undoubted advantage. Honeywell components are easy to obtain and are almost always in stock, so even the most complex repairs will not take much time.

The German company Honeywell has a history of more than a century (founded in 1885 by the inventor of the thermostat and regulator for a coal furnace, Albert Butts) and during this time has become one of the world leaders in the production of various types of automation, including automation for gas boilers.

Honeywell products have always been different high accuracy, efficiency and quality, regardless of price niche, be it budget mechanical thermostats or high-tech weather-compensated automatic modules, and is therefore in high demand all over the world.
This company has representative offices in 95 countries, including almost all countries of the former Soviet Union.

Prices

As already noted, the Honeywell brand of automatic equipment for a gas boiler in its assortment has offers for various wallet options. There are the simplest, fairly cheap automation mechanisms, the price of which ranges from $40-60, such as Honeywell vs8620, Honeywell v5475, Honeywell v9500. These automatic systems have a basic set of controllers that contribute to the safe operation of the gas boiler and maintaining a certain temperature of the energy carrier (water) in the system, technical characteristics with the most popular indicators, and are equipped with a mechanical knob for switching temperature modes. These systems are capable of:

  • automatically maintain the specified coolant temperature (from 40 to 90 oC)
  • automatically turn off the boiler when gas disappears;
  • automatically turn off the boiler if there is no draft in the chimney or if reverse draft occurs;
  • automatically turn off the gas supply when the fire goes out.

Operation of Honeywell vs8620 automation

But, you understand, if there is a thaw outside, then a boiler equipped with such the simplest system automation will still work the way you configured it in severe frost, which will lead to excessive heating of the room and unreasonable consumption of energy resources. Also, it will maintain the same heating mode, for example, during the day, when the whole family is at work and there is no need for good heating premises, which is also an unreasonable consumption of gas fuel. In this case, you will have to constantly adjust and reconfigure the automation parameters manually whenever external factors change.

In most rooms there is a so-called passive time of day for heating, when people leave it and it is enough to maintain a temperature that does not allow the heating system to freeze. As a rule, in residential premises it is day, and in office premises it is night. It is calculated that lowering the temperature of the heated room at this time by only 1 °C leads to savings of 6%. And if you constantly regulate the operation of the boiler, bringing it to optimal performance, you can save 40-50% of the budget for gas fuel payments.
For those who do not want or do not have the opportunity to constantly adjust the boiler settings themselves, but at the same time want to save energy resources and constantly be in a comfortable indoor climate, there is modern Honeywell electronic automation for a gas boiler, which can be programmed to maintain a certain temperature in the room depending on from weather conditions (weather-dependent automation), as well as to changes temperature regime indoors, depending on the time of day and even days of the week. Moreover, this automation can operate in both heating and cooling modes. For example, one of the most multifunctional such models are considered to be the Smile series models, capable of monitoring and managing several heated/cooled circuits at once, for example, heating, hot water, ventilation, “warm floors”, pool heating, etc.

Honeywell automation has always stood out from many competitors high quality, expressed in accuracy and efficiency. Moreover, this is inherent in all models, regardless of the price niche, be it budget mechanical thermostats or high-tech weather-dependent automatic modules

But this system belongs to the premium class of the company’s products and, accordingly, has a very low-budget price, which can fluctuate depending on the specified parameters and required technical characteristics.
In the line of Honeywell automation systems for gas boilers, there are also middle-class models, which, for example, have only several heating modes, depending on the time of day and days of the week, but do not control the street temperature. Such models include, for example, chronothermostats of the Honeywel ST series or programmable thermostat Honeywell YRLV430A1005.

In the video below you can see and hear about the characteristics of the Honeywell YRLV430A1005 programmable thermostat, but, unfortunately, only in English.

It is also worth noting that all Honeywell automation has very accessible, intuitive control modules. Whether it’s the simplest mechanical temperature switch knobs or control modules for multifunctional systems, any average person can handle them by reading the available instructions.

To summarize, we note that Honeywell automation for gas boilers is available in a very wide range, allowing you to select controllers with optimal technical characteristics, suitable for your equipment, needs and wallet.

When considering options for heating a home, they most often choose to use a gas boiler. If there is a main gas pipeline near the house, this heating option is considered the most economical and efficient.

When installing any heating boiler, including gas, automation is a mandatory component of the system. Such automation for heating boilers allows, without human intervention, to maintain the specified climatic conditions in the heated room and ensure optimal conditions operation of such a boiler.

What does automation for gas heating boilers consist of?

Typically, such automation includes the following elements:

  • fittings These are actuators that, under the influence of commands, turn the boiler on and off, and also regulate its power;
  • valves designed to shut off the gas supply;
  • maximum and minimum pressure switch. Designed to protect the system when pressure drops or increases too much;
  • thermostat;
  • water and gas pressure sensors;
  • controller – electronic device, which calculates the optimal operating mode of the gas boiler from the received data and generates control commands.

Types of automation for heating boilers

From a power supply point of view, there are two types of automatics for gas boilers:

  • non-volatile automation;
  • volatile automation.

These two types of automation differ in that the first system does not require power from electrical network, and for the second one to work, electricity must be supplied

Accordingly, these two automation systems will include different elements.

Non-volatile automation is simpler and more reliable, as it does not react to a sudden power outage.

Non-volatile automation

Such automation systems include:

  • ignition system, which uses a piezoelectric element;
  • thermostat;
  • draft and flame sensor.

Mechanical automation begins to work after starting the boiler. Depending on the temperature of the heated water, the thermostat changes the amount of fuel supplied to the burner. Structurally, the thermostat is a metal rod. It changes its length with temperature changes. Thus, it opens or closes the gas supply.

The draft and flame sensor is designed to interrupt the gas supply when the burner flame goes out or there is poor draft in the chimney. Structurally, such a sensor consists of a bimetallic plate, which, under the influence of temperature, changes its position and closes the gas supply.

The control and measuring equipment used in such systems is a pressure gauge and a thermometer. This system is configured manually.

Modern non-volatile automation systems for gas boilers can have much larger number nodes For example, Italian non-volatile automation has the following components:

  • temperature switching and control system;
  • flame protection system;
  • setting device minimum flow gas;
  • pressure regulator;
  • thermostat with burner shut-off function.

Volatile automation

Volatile automation is more complex. The composition is like this electronic system includes a larger number of elements.

For regulation in volatile automation, electromagnetic valves are used. The operation of these valves is carried out according to commands generated in the processor. Using a special display, the operator can select one of the possible modes. A correct execution This mode will be provided automatically.

In terms of the functions performed, automation for gas heating boilers can be of two main types:

  • room thermostat;
  • weather-sensitive.

Room thermostat

In the first case, the main indicator for controlling the operation of a gas boiler is the room temperature. Depending on this temperature, the boiler operating mode is selected. When the temperature in the room drops, the boiler starts working, and when the temperature exceeds a preset level, it will turn off.

Thermostat designs may vary. For example, SEITRO's thermostat operates using a membrane sensor. At a certain temperature, the sensor closes and a switching command is sent to the gas boiler.

Thermostats can be installed in any convenient location premises, and communication with the gas boiler control unit can be carried out using a cable or wireless connection.

SEITRO thermostat

A type of thermostat is a programmer. From such a programmer, commands are transmitted to the gas boiler throughout the day, in accordance with which its operating mode is carried out. The work cycle is repeated every day.

The weather-sensitive automatic gas boiler operates taking into account the outside ambient temperature. Appropriate adjustment of the automation allows you to maintain a constant climate in the house when the outside air temperature changes.

Weather-compensated automation

Basic automation functions

The main functions of the automatic gas heating boiler are the following functions:

  • automatic start of the gas boiler;
  • stopping the operation of the gas boiler;
  • control and adjustment of burner power using an appropriate sensor;
  • emergency stop of the gas boiler in case of any malfunction.

When you turn on the gas boiler, the automation first starts the hardware of the system. In this case, the temperature is measured and the amount of gas that must be supplied to the gas burner is estimated. On next stage automation starts gas fittings, resulting in gas being supplied to the system. At the same time, a spark is ignited in the combustion chamber, which ignites the gas. Under the influence of the flame in the heat exchanger, water is heated, which is then supplied to the batteries.

One of the options is automatic sabc for a gas heating boiler

An important part of the automation system of a gas heating boiler is the safety subsystem. This includes:

  • overheating protection;
  • frost protection;
  • anti-blocking;
  • anticyclical function;
  • control of flame and draft presence.

To protect against overheating, duplication of sensors is often used - temperature sensor and limit thermostat. To protect against freezing, when the water is cooled to a temperature of + 5 degrees, the automation lights the burner and heats the water.

Anti-locking provides automatic switching on pump every 24 hours to combat scale. The anti-cycling function assumes that the automation prevents frequent ignition of the burner, which reduces its working life. When a signal of lack of flame or draft appears, the automation system turns off the gas supply.

In volatile automation systems, the gas supply is turned off using an electromagnetic valve through which gas enters the burner. The valve automatically turns off if the gas supply stops. The disadvantage of such a valve is that when gas appears, it cannot open automatically and must be done manually. At the same time, if there is a power failure, after restoration electrical circuit, the system starts automatically.

Modern automation systems for gas heating boilers allow reliable and safe work gas boilers

In modern automation systems for gas boilers, system malfunctions are diagnosed automatically. The results of this diagnostic are shown on the display. This greatly facilitates and speeds up the repair of a gas boiler.

Bottom line

Choosing which automation to buy for a gas boiler it is necessary to understand that the most modern systems are energy dependent. If the customer has doubts about the reliability of the electrical network in his home, then it is necessary to consider the use of non-volatile automation systems.

Video review and honeywell automation for a gas boiler:

The presented video shows an overview of the 630 Eurosit automation for gas heating boilers

Honeywell automation is an affordable, multifunctional, non-volatile device that allows you to regulate the gas supply, taking into account the water temperature and electrical energy in the system.

The Honeywell gas valve is capable of creating a effective use fuel and a high fire safety rating.

Selecting and purchasing Honeywell spare parts is no longer a problem, just look here. You can also consult with specialists.

Important information! Honeywell automation can be installed on boilers with a power of up to thirty-two kW.

Let's consider the main advantages

  1. Effective functioning of the system on different types gas supply.
  2. The system does not require connection to the electrical network.
  3. There is a starting gas filter and a special screw to regulate the fuel supply.
  4. Possibility of operation of the device at low gas pressure.
  5. Function to turn off the system when there is insufficient draft or when back smoke occurs.
  6. Stable temperature conditions.
  7. Possibility of smooth adjustment.
  8. Piezo ignition is modeled to make the device as simple and convenient as possible during operation.
  9. Constant outlet pressure.
  10. Simple design and compact dimensions of the device.

Let's look at some features

There are several worth noting important functions and features:

  • The igniter lights up using a piezoelectric element.
  • Ability to regulate water temperature from forty to ninety degrees Celsius.

You can also configure the automation unit to achieve the following parameters:

  • Minimum and maximum supply of gas to the system.
  • Setting the gas flow to the igniter.

Please note! The stainless steel burner design will provide complete combustion gas

Emissions will also be reduced carbon monoxide V environment, as a result of which much less chimney maintenance will be required.

Conclusion on the topic

These functions and features characterize the reliability of the entire system. With them, the period of uninterrupted and reliable operation will increase.

Be sure to consult with specialists; they will tell you about many nuances that will be applicable specifically in your boiler room. Good luck with construction and renovation!

Below we will describe the most incomprehensible malfunction in the entire history of our work. Moreover, we are not 100% sure until the end. We understood almost completely the details of what was happening and have already resolved this issue more than once with the most positive result. But, nevertheless, some uncertainty is still present. Maybe this will go away over time, after completely disassembling the valve, when possible. OK then...

Main symptoms. It starts as if from afar. There are no signs of trouble. For no apparent reason, the working boiler suddenly turns off. The boiler may be working properly for several months before this starts. Or maybe even several years. Well, it turned off, and it turned off. We approach the boiler. Let's launch. Works. After this strange failure, a day or even a week usually passes. And the situation repeats itself. The boiler may turn off, for example, at night. After this, boiler shutdowns become more frequent, and as a result, the boiler cannot be started at all. We release the button and the igniter goes out.

Something that usually immediately confuses specialists .(but the problem is the same!!!)

1. Everything is fine. Idling works. (The igniter is lit.) You exhibit desired temperature. The boiler reaches this temperature and suddenly turns off along with the igniter. Then, the boiler cannot be started at all until it cools down. After a couple of hours, the boiler can be turned on, but the situation immediately repeats itself. Or something else...

2. Launch boiler. It works. It's gaining temperature. Cotton. Gas release from igniter. Everything goes out. And then, until the boiler has cooled down completely, you don’t even have to come close. The gas worker, for example, cleaned the pilot burner. DayIt worked and again the same story.

Next, look at the top picture. What do you usually do right away? They pull off the wires from No. 3, wind a wire jumper and try to start the boiler. After the boiler does not start, and it usually does not start in 90% of cases, almost everyone begins to blame the gas valve, claiming that it is faulty, or the solenoid valve located inside the gas valve. Replacing the gas valve with new problem does not eliminate. Or, as mentioned above, a day passes, or, at best, a week. And then a complete repeat of the situation. This, of course, got old very quickly, but let’s not blame anyone who could help us, right? Therefore, let's get down to business.

Entering information 04/17/2013 To quickly diagnose such a malfunction, see the article. Here is a specific list of actions that will help “revive” the boiler or repair it.

1. First we will get used to the big picture. Let's approach the boiler and use our eyes to find everything we need here by looking at the elements. There is no way without this.

2. Then we will analyze the work of each element in this chain separately. This will greatly help to see the overall picture of the boiler's operation.

3. Let's make a diagnosis and figure out the situation together. I advise you to take your time and study everything carefully, because the matter here is so delicate that if you don’t have basic attentiveness, you won’t be able to do anything. Run to change the boiler for a new one, as some people usually advise, having been stuck with the boiler until late at night, or just quietly let the oak go to minus -30C, buying up all the thermocouples, valves, and giving away about ten of them for nothing.

We are working.

1.This is a Honeywell gas valve. There may be another valve. By the way, I must say that this malfunction directly affects AOGV boilers with a capacity of 11.6, 17.4 and 23.2. These boilers are equipped with simple valves. There are more complex valves, for example or Honeywell, that use two thermocouples: one - , the other, multiple - . These blocks cost AOGV 29.1 or more powerful boilers. We are not talking about them now.

2. This is a thermocouple. It is heated by an igniter and generates EMF. This EMF keeps the valve open. The thermocouple will cool down and the valve will close. Thermocouples for Honeywell blocks - . If you need to know more about the work - .

3. This is a thermocouple breaker. It is also called a "thermal breaker". The great setback is that the breakers are only supplied for Eurosit units. They have M9 thread. And the Honeywell unit has a thread for an M10 breaker.

4. Thermal relay 90C. Or 95C. 90C is the temperature at which the relay is activated. Boiler boiler protection.

5. Button KM1-1. Or a small-sized button KM1-1. Doesn't matter. Essentially a regular electrical push-button switch.

6. Thermal plate. Here it is a little different. Not the same as installed on your boiler. Your thermal plate has a nut welded in and an adjusting screw. If there is poor draft in the chimney, the plate bends and presses the KM1-1 button. The boiler turns off.

When we looked, found all the elements and even felt them with our hands, we move on to analyzing the work of each element separately.

1. Gas valve "Honeywell".

Currently not supplied by the factory. More precisely, it is still being staged as it was, only under a different name - Mertik Maxitroll. This is not an analogue, this is what it is. Remove the cover from yours and you will see this name. To start the boiler, we turn the handle to the “Spark” position and push it down. The gas went to the igniter. After that, we turn the handle, click the piezoelectric element (in this block it is built into the valve and controlled by the handle), the igniter lights up and wait 30-45 seconds for the thermocouple to warm up. After this, release the handle. The solenoid valve remains in open position, powered by EMF from a thermocouple. Turn the second knob of the temperature regulator, opening the gas to the main burner. The burner is lit by a working igniter.

2. Thermocouple. The thermocouple is placed at one end into the igniter flame and, when warmed up for 30-45 seconds, begins to generate an EMF of 20 mV. This 20 mV keeps the block solenoid valve in the open position..