Gas boiler: installation, wiring diagram

In many modern settlements there are no central heating systems today, hot water is not supplied to the houses, and this problem can be solved by installing a heating boiler. Manufacturers offer aggregates in a wide range, they can be classified according to the type of fuel used. However, gas boilers remain one of the most popular today, which is explained by their high efficiency. This equipment will work without problems if the installation and installation, as well as the connection, were carried out correctly.

What to look for

The gas boiler must be installed and then inspected by a specialist in the gas service. The professional will check whether all the work has been done correctly, whether the installation features are observed. If all is true, the expert will give an opinion, which will serve as the basis for opening the valve. It will be important to pressurize the heating system, while maintaining pressure within 1.8 atmospheres. You can find this indicator by looking at the manometer of the equipment.

At this time, a person checks whether all joints and joints are tight. The system must be free of air. Do not mix water with antifreeze, and if the equipment uses the safety system and automation, which involves the connection of electricity, then ensure the supply of electricity.

Installation: requirements for the boiler room

The gas boiler must be installed in a room that is equipped according to the requirements. The boiler room should be located in an uninhabited room, in which quality a pantry, cellar or attic can act. Do not install such a device in the toilet or bathroom.

The room volume should correspond to the heat output of the boiler and additional types of equipment. This should include an expansion tank. Thus, if the total heat output does not exceed 30 kW, then the room for such equipment should have a volume of 7.5 m ³ . If the power increases to 60 kW, then the room volume needs to be increased to 13.5 m ³ . Whereas at 200 kW the room volume should be equal to 15 m ³ .

Recommendations of a specialist in choosing a boiler room

Installation of a gas boiler should be carried out in spacious rooms. The larger the area of the house, the more impressive the volume of the boiler room should be. In the passport it is necessary to find out where the equipment should be installed - in the furnace or boiler house. This should be noted.

The modern market offers a lot of novelties, the installation of which no longer has such tough rules. For example, heating gas boilers with closed combustion chambers are safe and do not require the preparation of a large space and the presence of windows and ventilation in the boiler room.

Recommendations for air exchange

The connection of a gas boiler is necessarily accompanied by the installation of an air exchange system. If the capacity of the equipment is 23.3 kW, then for an optimal temperature it will be necessary to supply 2.5 m ^{3 of} gas per hour. This volume of fuel requires 30 m ^{3 of} air. If it is not enough in the room, then you will encounter a problem that is expressed in the incomplete combustion of gas. This will lead to inefficient use of fuel, and the combustion process will be accompanied by the release of substances harmful to human health. If they are not taken out of the premises in time, then a person may die.

An important point is to ensure a distance from the surface of the equipment to the wall, which should be 10 cm. This is true if the wall surface is decorated with non-combustible materials.

Installation requirements

A water boiler for gas must be installed according to certain rules. They say that the width of the door in the room should be 80 cm, and the boiler itself should be installed in such a way that it is illuminated in a natural way. For every 10 m ^{2 of the} boiler house there should be 0.3 m ^{2 of} window, this value is minimal. The area of the opening for the external air intake should be 8 cm ² for each kilowatt of power of the device.

Wiring plan

The gas boiler, the connection diagram of which should be studied by you before the start of the installation work, is established in several stages. As a final step, the chimney device appears. But to start the owner of real estate should conclude a contract for the supply of gas. When it comes to the simplest equipment, it consists of a heat exchanger and a gas burner. To such a device it is necessary to connect gas and water, and the exhaust will be output to the chimney system.

Before installing the boiler, it is necessary to clean the walls of the input pipes clean of debris, which can remain after the assembly of the equipment. On the water supply pipes, a filter and a shut-off valve must be installed, which must be located before and after the filter. Further, a chimney is installed, certain requirements are imposed on this system. The gas boiler must contain a pipe for the discharge of exhaust gases, the diameter of which must meet the requirements specified in the manual. The pipe above the ridge of the roof should be raised by 0.5 m, it is better to use a steel cylindrical chimney in which there is a hole for cleaning.

The master should check the traction, because the automation will not allow the work to continue if it is insufficient. Special drift and a steel pipe will allow to cut the boiler into the gas pipeline system. To perform these manipulations should resort to the help of specialists. The gas boiler must be connected to the power supply system and connected to an automatic device that protects against overloads.

Conclusion

For a gas boiler usually requires a pedestal, for this you can prepare a concrete screed. If we are talking about a wooden floor, then it is necessary to lay galvanized sheet iron. The position of the device should be monitored during installation using the level.