Saving electricity and gas, stable comfortable temperature, minimum time spent on adjustment heating equipment - all these are not whims, but well-founded requirements for a properly organized heating process.
Therefore, connecting a room thermostat to a gas boiler, to ensure all of the above conditions, becomes an obvious necessity. We will talk about the principle of operation of the thermostat and the types of the device. Let's look at the differences in the functionality of different models.
The article describes in detail the principles of connecting a temperature controller. The rules for installing different variants of the device are given. Following our recommendations, you will be able to carry out the installation yourself, without the help of heating technicians.
The content of the article:
- Benefits of using a thermostat in heating
- Types of thermostats for gas boilers
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General principles of connecting the thermostat
- Mechanical thermostat connection
- Installation of an electronic thermostat
- How to connect a wireless thermostat?
- Conclusions and useful video on the topic
Benefits of using a thermostat in heating
Gas heating is already a blessing in itself and significantly increases the quality of life. But simplifying the management of gas heating equipment is an issue no less urgent.
Setting up and controlling the operation of a gas boiler can be carried out in two ways - manually or using a thermostat, which will automatically ensure a stable temperature regime.
Manual adjustment helps to set a specific temperature coolant in the system - when the temperature rises to the set values, the boiler turns off, when it drops, it turns on. As a result, the temperature in the house is maintained at a certain level.
But with a change in the temperature outside, the set mode turns out to be incorrect and you have to manually reprogram the heating device. Such manipulations are carried out throughout the entire heating season, and this is inconvenient.
A sharp rise in temperature outside the building, heating a room by the sun's rays often require an immediate shutdown of the heating system. Timely shutdown will be performed by the thermostat
In addition, manual regulation means that the gas boiler operates in a constant on-off mode, with a working cycle period of about 10 minutes. This does not in the best way affect the duration of the boiler operation.
Even in a system with manual control, regardless of the operation of the heating function, a constant circulation of the coolant is ensured using pumping equipment, which means that excess electricity is consumed.
The use of a thermostat to control the operation of a gas boiler completely eliminates cycle problems, and also eliminates sudden temperature fluctuations
Automatic regulation, in contrast to manual control, turns off the circulation pump. Reacting to the temperature of the air in the room, and not the coolant in the heating circuit, thermostat for heating boiler maintains a stable temperature in the room.
As a result, the microclimate in the house is significantly improved, the frequency of boiler starts is reduced, which means that its service life increases.
Energy saving when using an automatic thermostat reaches 30%, but even the cheapest programmer provides savings of at least 15%
There are other advantages to using a thermostat:
- the device sets the optimal / economical temperature regime depending on the time of day;
- solves the problems of the gas boiler clock - frequent switching on and off;
- facilitates the operation and increases the reliability of the heating system.
These are just some of the obvious advantages common to all types of thermostats. The advantages of individual models can be studied in more detail immediately before purchasing.
Types of thermostats for gas boilers
Thermostats can be classified into three main types: mechanical, electronic, and electronic wireless.
Wired models cost less, but require cable laying - it is better to install a thermostat on a gas boiler before or during repair work in the house. Wireless models are more expensive, more functional, more convenient.
Selecting a thermostat to connect to gas heating system carried out taking into account the following basic criteria:
- functionality;
- accuracy of adjustment;
- the cost of the thermostat;
- ease of use and installation.
By functionality, they are distinguished:
- simple thermostats - help maintain the desired temperature in the house;
- wireless thermostats - have a transmitter unit that is placed in another room for more accurate temperature control;
- programmable - allow you to set a stable temperature mode separately for day and night, program the heating system on days of the week, which significantly reduces fuel consumption;
- with hydrostat function - help to control the level of humidity in the room, reducing or increasing it according to the settings.
- With an additional floor sensor - the model is used, among other things, to adjust the temperature of the coolant in underfloor heating system.
- With an additional water heating sensor - the device is used to regulate the temperature of the hot water supply and to control the heating system.
Separately, it must be said about programmers - thermostats that are more complex in terms of functionality, which are installed, inter alia, for the control of climate systems in the so-called smart houses.
There are models of Wi-Fi thermostats with voice control. These room regulators support several foreign languages and can be controlled using a smartphone. During a power outage, the memory power-on function is triggered, which saves the settings of the programmer
Programmers control the operation of not only heating and water heating equipment, but also air conditioners, pumps, and other devices. Some of them help to program an individual temperature regime for each day of the week with the ability to set from 1 to 6 fixed operating points.
General principles of connecting the thermostat
The method and diagrams of connecting the thermostat to the heating equipment itself can be found in the technical passport gas boiler. Modern equipment, regardless of the manufacturer, requires connection points for the thermostat. The connection is made using the terminals on the boiler or the thermostat cable included in the delivery.
When using a wireless thermostat, place the measuring unit only in a residential area. This can be the coldest room or the room where the largest number of people gather most often, the nursery.
It is impractical to install the thermostat unit in the kitchen, hall or boiler room, where the temperature regime is unstable.
The thermostat should not be exposed to sunlight, it should not be located in a draft, next to heating appliances and electrical equipment that emit a large amount of heat - thermal noise has a bad effect on operation devices
Connection of various types and models of thermostats may have their own characteristics, installation is carried out in accordance with the manufacturer's instructions, which is attached to the device.
The recommendations include a comprehensive description of the regulator's operation, method and connection diagrams. Next, we will tell you how to correctly connect the thermostat to a gas boiler and about the installation features of the most typical regulator models.
Mechanical thermostat connection
The mechanical-type thermostat is distinguished by its reliability and simplicity of design, low cost, and long-term operation.
At the same time, it supports only one temperature regime, which is set by changing the position of the knob at the temperature scale mark. Most thermostats operate in a temperature range of 10 to 30 ° C.
To connect the mechanical thermostat to the air conditioner, use the NC terminal, to the gas or any other heating equipment - the NO terminal
The mechanical thermostat has the simplest principle of operation and is triggered by opening and opening the circuit, which occurs using a bimetallic plate. The thermostat is connected to the boiler through the terminal box on the boiler control board.
When connecting the thermostat, pay attention to the marking - it is present on almost all models. If there are no signs, use a tester: pressing one probe to the middle terminal, check the side with the second and determine a pair of open contacts
Installation of an electronic thermostat
The design of the electronic thermostat assumes the presence of an electronic board that is responsible for controlling the device.
Potential serves as a control signal - voltage is transmitted to the boiler input, which leads to the closing or opening of the contact. The thermostat must be supplied with a voltage of 220 or 24 volts.
Electronic thermostats allow more complex settings for the heating system. When connecting an electronic thermostat, the power wire and neutral are connected to it. The device transmits voltage to the boiler input, which starts the operation of the equipment
An electronically controlled thermostat is used to organize the operation of complex climate systems. He will help in managing not only atmospheric or turbine gas boiler, but also with a pump, air conditioner, servo drive in the heating system.
How to connect a wireless thermostat?
The wireless thermostat consists of two units, one of which is installed in the living area and acts as a transmitter. The second block is mounted near the heating boiler and connected to its valve or controller.
Data transmission from one block to another is carried out over a radio channel. To operate the device, the control unit is equipped with an LCD display and a small keyboard. To connect the thermostat, set the address of the sensor and install the unit at a point with a stable signal.
Thermostat connection diagram by breaking the circuit - the equipment is turned on at the moment the current appears. A similar circuit is used when connecting a mechanical thermostat.
The main disadvantage of the wireless thermostat is the power supply of the external unit from the batteries, which have a limited resource and therefore require frequent replacement. To ensure trouble-free operation, the device is equipped with an alarm function that warns of the need to replace the battery.
Conclusions and useful video on the topic
How the thermostat is connected to a gas boiler:
Room thermostats for regulating the heating system:
Self-assembly of the device should not cause absolutely any difficulties. But do not forget, when connecting the thermostat to a gas boiler, to study the instructions that come with the device and the technical documentation for the heating equipment.
Tell us about your own experience in choosing and connecting a thermostat to a gas boiler. Share useful information that may be useful to site visitors. Please leave comments in the block form below, ask questions, post photos on the topic of the article.
