We decide how to connect the thermostat to the gas boiler of autonomous heating
Room thermostat
The thermostat is an automatic device necessary for regulating the operation of boiler equipment. It reads the air temperature in the room and gives a "command" to the boiler, reducing or increasing its power. Modern boiler equipment, as a rule, has built-in programmers. But there are situations when you have to connect additional equipment yourself. Consider how to connect a thermostat to a gas boiler.
Adjustment of the operation of boiler equipment
There are two ways to regulate the operation of a gas boiler - manually or automatically using a room thermostat. Let's see how this happens in practice. The temperature of the coolant in the system affects the degree of air heating. Its increase or decrease provides a comfortable microclimate with the best temperature indicators.
After the heat carrier reaches the set temperature, the boiler is switched off. When the indicator decreases, it turns on. In the event of a change in the temperature delta outside and inside the building, the operation of the boiler will have to be reprogrammed. These manipulations are carried out throughout the entire heating season, so manual adjustment is not the most convenient option.
Note! Connecting a room programmer completely solves the problem. All temperature data will be read by the sensors, and the boiler will work according to the set program.
Installing the programmer allows you to solve another important problem. With manual adjustment, the boiler operates in the mode of constant short-term on-off. The start is carried out for a short period of time - about 10 minutes. The circulation of the coolant in the system, as a rule, is provided by pumping equipment. Moreover, it will work regardless of whether the heater is turned on or not.
All this significantly increases energy consumption. In addition, this mode of operation does not have the best effect on the durability of the unit.
What does the thermostat do?
The thermostat is an automatic programmable device. The user sets a comfortable room temperature on it. When the temperature drops, the programmer automatically turns on the boiler. The response threshold may be different and depends on the model of the device. On average, the sensors are triggered when the temperature drops by 0.25 degrees.
After automatic switching on of the boiler, the heat carrier begins to heat up and the air temperature rises. When the set indicators are reached, the programmer turns off the boiler. At first glance, it may seem that there is no difference with manual control. In fact, there is one important difference that has a lot to do with the efficiency of heating. Turning off the boiler, the thermostat will automatically turn off the circulation pump.
circuit diagram
The equipment will be switched on again after the air temperature reaches the threshold of the sensors. Since the room thermostat reacts to the temperature of the air, and not the coolant, the frequency of switching on the boiler is significantly reduced compared to manual adjustment. This is because the heated air cools much more slowly than the water in the system. In simple terms, it is not so important how much the batteries cool down - as long as the room has the right heat, the boiler and pump will not turn on.
The boiler will not turn on in other cases:
- Heating the room with sunlight.
- Reducing temperature delta.
- An increase in the number of people and, as a result, an increase in air temperature.
- Receiving heat through building envelopes, etc.
As the practice of using thermostats has shown, they can save up to 30% of energy. With such indicators, we can talk about an energy-efficient heating system, reducing the cost of providing comfort at home and saving fuel.
Installation and connection
Wiring diagram
Experts recommend installing room thermostats in residential areas. Their installation, for example, in the kitchen, in the hall, in the boiler room will lead to violations in the operation of the system. It is advisable to choose either the coldest room, for example, a corner room, or a room where a large number of people most often gather.
There should be no heat sources near the thermostat - radiators and additional heaters. It must not be exposed to direct sunlight. Not the best place for installation in a draft. Care must be taken to mount regulators near household appliances that emit a considerable amount of heat. All this is the so-called thermal interference that interferes with the normal operation of the programmer.
The boiler is turned on and off by means of a relay. Modern gas boilers, regardless of their manufacturer and model features, have connection points for a thermostat through which heating and cooling are controlled. You can connect the device using the terminal on the boiler at the desired point or using the thermostat cable included in the delivery. The method of connecting additional equipment can be found in the technical passport of the boiler, where there is not only a description, but also all the necessary diagrams.
The connection of the thermostat is carried out in accordance with the recommendations of the manufacturer of the heating unit. As a rule, there is a corresponding section in the technical documentation for the boiler. In general, the installation of an additional device does not cause difficulties, so you can do it yourself.
Setting
After connection, the device must be configured. Here the instructions for the thermostat will come to the rescue. As a rule, on the front panel of the programmer there are buttons with which it is configured, as well as microswitches. Programmable hardware requires energy to operate. Thermostats work from ordinary batteries.
Room mechanical
The switches can be used to control:
- Heating and air conditioning.
- Sensor response delay time. For example, with a short draft, the sensor will detect a decrease in temperature, as a result of which the boiler should turn on. The tripping delay will help to avoid false inclusions.
- Temperature fluctuations. For example, temperature fluctuations are set to 0.5 degrees. This means that the device will turn on the boiler when the parameter drops by 0.25 degrees, and turn it off when the indicator exceeds the same 0.25 degrees.
Using the buttons, the optimum and economical temperature is set. The optimal (comfortable) temperature will be maintained during the daytime. At night, the indicator will decrease, providing savings and avoiding excessive fuel consumption. The thermostats have pre-installed programs. If necessary, the user can select one of them for the normal operation of the heating system. The number of such programs varies depending on the programmer model.
Advantages of automation
Automation for boiler equipment is the choice of people who need an energy-efficient heating system. Installing the cheapest programmer will save at least 15%.
In addition, automation has many other advantages:
Control Panel
- Solving the problem of clocking the heater - unreasonably frequent switching on and off.
- Setting the exact temperature regime in time - optimal / economical.
- Ease of installation and configuration.
- Facilitate the operation of the boiler.
- Improving the reliability of the system.
- Possibility of fine tuning.
Only the most obvious advantages of automation are listed here. Their practical advantages can be found only during operation. The only thing that should be noted is that it is not advisable to save on installing a thermostat. This simple and inexpensive equipment will significantly save on heating. For the cold regions of Russia, such savings are very significant.
Conclusion
The thermostat is an important element of autonomous heating systems. It allows you to ensure automatic operation of the entire network and avoid excessive fuel consumption. This simple device is the key to long-term operation of both the boiler and the entire engineering network. Installing a thermostat is not difficult. Focusing on the description and diagrams given in the instructions for the boiler and the automatic device, you can connect and configure it yourself, without contacting specialists.