The heating safety group is a mechanism that consists of a whole set of devices. Thanks to their well-coordinated work, trouble-free operation of the system is ensured, as well as full control of the pressure in the coolant.
What parts does the heating system consist of
When an emergency occurs in a private house or an expansion tank fails, the pressure in the heating system increases sharply. This can lead to an explosion in the pipe, as well as damage to the heat exchanger of the heating tank. Of course, each person cares about heating a private house. The safety group, in the event of a breakdown, will compensate for excess pressure, and also prevent airing of the system. It works in automatic mode and tries to quickly relieve excess pressure.
The safety group includes a metal case, which has a threaded connection. A pressure gauge, a safety valve, and an air vent are installed here.
- The pressure gauge is a measuring device that provides visual controlover the emerging pressure, as well as the temperature regime in the heating system.
- Air vent. It works automatically and vents excess air in the system.
- Safety valve. It is designed to remove excess fluid that is in a closed system. Sometimes, when the coolant is heated, it may expand and create excess pressure.
Working principle
If certain situations arose, and the expansion tank could not compensate for the expansion of the coolant in time, then the safety valve mechanism will work in this case. The heating safety group will open the way to release excess coolant. Unwanted air can escape through the air vent.
To prevent a person from getting burned during the sudden opening of the check valve and the release of excess coolant, it is necessary to connect a drain pipe. It must be directed to the sewer system. Many people believe that there will be little liquid left in the system when the relief valve is activated. But this opinion is erroneous, because in most cases, in order to normalize the pressure, the system dumps no more than 120 grams of coolant.
How to set up a security group correctly
Today, wall-mounted boilers for heating a private house are in great demand. In most cases, they already have a safety group for the heating system. In a floor boilerespecially if it is from a domestic manufacturer, there is no such unique device. That is why buyers will have to think about additional installation of a boiler system. In order for it to work correctly and properly, the installation process must be trusted only by qualified specialists. Only they will be able to set all parameters and settings. If errors or oversights are made during installation and connection, the heating safety group will not work correctly.
In most cases, installation is carried out to the boiler on the supply line. The most optimal distance is about 1.5 meters, because in this position the pressure gauge will be able to control the pressure in the system.
Common instructions for installing a security group
Each manufacturer that produces such equipment prescribes all the installation rules in the instructions. But there are generally accepted regulatory documents, where all the installation rules are clearly described.
- Safety valves located in the heating system must be installed on the supply pipeline. They are mounted right next to the boiler. A certain power level is taken into account in order to cut and duplicate these devices.
- In a system where there is hot water, valves must be installed at the outlet. In most cases, this is the top point on the boiler.
- No devices should be placed between valves and main pipes.
Security group onheating in the system plays an important role during the operation of the boiler. To ensure complete safety, care must be taken to properly install this system.
