The heating safety group is a mechanism that consists of a whole set of appliances. Thanks to their coordinated work, trouble-free operation of the system is ensured, as well as complete 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, then the pressure indicators in the heating system increase 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 home. The safety group, in the event of a breakdown, will compensate for overpressure and also prevent airing of the system. She works in automatic mode and tries to quickly relieve excess pressure.
The security group includes a metal housing that has a threaded connection. A pressure gauge, a safety valve, and an air vent are installed here.
- The manometer is a measuring device that provides visual control over the emerging pressure, as well as the temperature regime in the heating system.
- Air vent. It works in automatic mode and discharges 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, excessive pressure can expand and create.
Principle of operation
If certain situations arise, and the expansion tank could not compensate for the expansion of the coolant in time, then the safety valve mechanism will work. The heating safety group will open the way to let out excess coolant. Waste air can escape through the air vent.
To prevent a person from getting burns during the sudden opening of the non-return valve and the discharge of excess coolant, a drain pipe must be connected. It should be directed to the sewage system. Many people believe that when the safety valve trips, there will be little fluid left in the system. But this opinion is erroneous, because in most cases, in order to normalize the pressure, the system discharges no more than 120 grams of coolant.
How to properly set up a security group
Today, wall-mounted boilers for heating a private house are in great demand . In most cases, they already have a security group for the heating system. In the floor boiler, especially 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 the system for the boiler. In order for it to work correctly and correctly, the installation process must be trusted only by qualified specialists. Only they can set all the parameters and settings. If during installation and connection mistakes or oversights are made, the safety group for heating 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 it is in this position that the manometer can perform pressure monitoring in the system.
General Safety Group Installation Instructions
Each manufacturer that manufactures such equipment prescribes all installation rules in the instructions. But there are generally accepted normative documents where all installation rules are clearly painted.
- Safety valves that are located in the heating system must be installed on the supply pipe. They are mounted immediately near the boiler. A specific power level is taken into account 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 highest point on the boiler.
- No devices should be located between the valves and the main pipes.
The safety group for heating in the system plays an important role during the operation of the boiler. To ensure complete safety, it is necessary to take care of the correct installation of this system.