Today gas boilers and columns are used everywhere for water heating and for heating homes.Most of the heating and hot water boilers using separate single-circuit or a single-loop boiler and the boiler of indirect heating, which creates some inconvenience in their placement.Therefore, in houses and apartments with a small hot water is increasingly gaining popularity the installation of double-circuit gas-fired boilers that combine heating water for household needs and for heating.Installation of gas boilers is associated with a number of specific problems related to a greater degree of compliance with the standards and requirements for boilers than with the process of installation.
- device bypass boiler
- norms and requirements for the installation of gas boilers
- Matching installation in government
- Installation of a bypass gas boiler
device bypass boiler
design combi gas boilers essentially similar to conventional constructionsingle-cir
At first glance, the heat exchanger of the boiler bypass is a conventional coil to the grille.But it should be noted next coil bypass the boiler is most often a combination of tubes 2 to 1. Inside the main pipe through which flows the water for heating, placed another for hot water.It should be noted another very important point.Water in this double exchanger circulates in opposite directions in each of the circuits.This was done specifically to improve heat transfer and this must be taken into account when designing and connecting the water and heating to the two-circuit boiler.
presence of two loops for heating and the impact on the number of connected tubes.Unlike single-circuit, where there were only three pipes, inlet and outlet water and a summing gas.The two-circuit boiler pipes of five.The diagram depicting a gas boiler two-circuit, the following can be seen (right to left):
- pipe within the coolant for heating;
- feed pipe for hot water supply;
- pipe, summing gas;
- pipe to the outgoing hot water for water supply;
- outgoing coolant pipe for heating.
Important!Before you can use the above diagram when connecting your own boiler, carefully read the manual.It is possible that the connection of your boiler will be slightly different.For example, both supply tubes are to the right side, and both originating from the left.
is also worth noting that the market today can be found Turbofan gas boiler as a wall or floor.In addition to the installation method, the difference between them is that the need for floor required a separate room - boiler room, while the wall can be installed in a kitchen or in a designated site under the boiler.Where and how to install gas boilers will be discussed further.
norms and requirements for the installation of gas boilers
immediately necessary to mention that the installation and connection of a bypass gas boiler can work only specialized organization with a license and permit for this activity.Self-assembly and connection is fraught with rather high fines.Still some work to prepare for the connection of the boiler and registration required permits have to perform yourself.
following these recommendations and rules are adapted from key regulations such as SNIP 42-01-2002 "Gas distribution systems" and SNIP II-35-76 «Boilers' Code of Practice for the design of autonomous heating systems SP-41-104-2000.In these regulations described in detail what you can and what can not be done during installation of gas equipment.We consider the most important basic requirements for the installation of gas boilers.
1. The room where will be installed gas boiler, must be at least 4 m2 with a ceiling of not less than 2.5 m;
2. The doorway in the room must be at least 80 cm in width;
3. The room must be a window opening.The window size is calculated based on the following requirements - 10 m2 window area of 0.3 m2;
4. Make sure the quality of ventilation in the room to ensure continuous gas combustion.The area of the holes should be 8 cm2 per 1 kW boiler output.This also applies to boilers with closed combustion chamber, which uses coaxial chimneys, combines the functions of removing the products of combustion and the air supply to the boiler;
5. Chimney diameter selected according to the power of the boiler and is calculated by a special formula.In general, home heating is most often used boilers from 30 kW to 40 kW.Accordingly, installed chimneys diameter of 130 mm and 170 mm;
6. The upper end of the chimney must extend above the roof ridge of 50 cm. In the case of a coaxial chimney, its outputting end should be to act on the air intake by at least 20 cm;
7. gas mains in the home should be made of metal pipes.But to connect the boiler to the highway, you can use the flexible corrugated pipes;
8. The boiler should always be equipped with a special automatic overcurrent and thermal protection;
9. to the boiler room must be equipped with a gas analyzer;
10. Installation of gas boilers in the basement is allowed only for private homes.For apartment buildings installation of gas boilers is only allowed in the kitchen or designated under the boiler room;
11. Each boiler must be equipped with a gas meter;
12. In the room one must have cold water pipe;
13. In the room where the boiler is installed, the walls must be aligned and plastered;
14. The boilers can not be installed on combustible surfaces in the corridors, in the bathroom, in a dormitory on the balcony, in rooms without windows and air vents, in the basements of apartment buildings;
15. The boiler must be located at a minimum distance of 15 cm from the wall.From the top of the chimney to the ceiling must be at least 20 cm. The outer part of the chimney must protrude from the wall of the house at 30 cm. The height of the installation mounted boilers should be 0.8 - 1 m from the floor and between the wall and the boiler is necessary to place an insulating panel.
Important!If the double-boiler with a closed combustion chamber, the presence of windows in the room is optional.
By following these simple rules, you can easily get permission to install a bypass of the boiler at home.Of course, no harm will be more details about SNP, as the above mentioned rules are common and possible limitations for each specific case.
Matching installation in government
When installing combi boilers compliance with building codes is only a small part of the trouble encountered.Most of the time required to obtain the necessary permits and approvals mounting.For permission, do the following:
1. To connect a private home or apartment to the city gas supply, it is necessary to obtain technical specifications for connection.To do this, write a statement to the city gas service.The statement must specify the alleged necessarily the amount of gas consumed per hour.In appreciation of your application will take 1 to 2 weeks.After that, your hands will be given specifications installation.
2. After receiving the technical conditions necessary to develop the project of gas supply.In fact, this scheme is to install the boiler, gas pipeline and connection points.In a private house here also includes a scheme for the laying of gas communications site.The project is developed in a specialized bureau design engineers with the license for the design of gas communications.Contact companies that perform the design, you can easily find in Gorgaz.
3. After creating and finalizing the draft it sent to the Gorgaz or other authorities (Raygaz, regional gas companies, Mingazov).On the coordination of the project may be required from 1 week to 3 months.Term matching depends on the complexity of the project.Together with the project must be submitted as a series of related documents:
- the log boiler;
- operating instructions;
- certificate of compliance with sanitary and technical requirements;
- conclusions of the examination for compliance with all the requirements of the boiler.
These documents are supplied with the boiler from the manufacturer, so it is important to check their presence with the purchase of the boiler.
course, the variant project rejection.In this case, you must obtain an official document to the refusal and the reasons for failure, as well as a list of revisions for the project.After making corrections and resubmit for approval you will get permission to install the boiler.
Installation of a bypass gas boiler
determine the place of the installation of a bypass gas boiler, as well as having brought to it all communications from the hot water (hot water) and heating can begin the installation of the boiler.You must make a reservation that, regardless of whether it is wall-mounted or floor-standing boiler for its installation and piping require the same materials and components.The following is a general list of what is required for safe operation:
- ball valves;
- magnetic filter;
- gas filter;
- flexible corrugated hose;
- coaxial chimney;
- safety valve 3 bar.
Important!The number and scope of related materials depends on the wiring diagram of the gas boiler.
double-wall gas boiler installed in almost any room permitted for him.Its installation can be done by yourself, but directly connecting gas equipment made by an appropriate certificate to perform this type of work.Separate connection of the boiler will entail fines.
Connecting a bypass gas boiler starts with preparation of a site for its installation.First of all it concerns the supply of pipes for hot water and heating, as well as preparation for the opening of the chimney and wall covering refractory material.Once everything is ready, start the installation of the boiler:
1. The first step is to rinse the piping system of the boiler in order to eliminate the possible dirt particles out of the system that could get in there during the assembly of the boiler in the factory.Then dress them earlier removed plug.
2. Wall-mounted boiler to special straps that are included.The height of the wall installation of the boiler must be 0.8 - 1 m from the floor.Zasverlivaem holes in the wall under the straps and fasten them to the wall with screws.To be safe, you can use screws instead of anchors.
Important!Care should be installed horizon strips.It depends on the proper placement of the boiler.The slightest misalignment can lead to rapid failure of the heating system boiler.
3. Set the boiler fastening strap.Check how much it exactly costs.If you want to tinker and fix it.
4. Find the incoming pipe and join them at the beginning ball valves, and then the filters for coarse or fine water.This will, if necessary, cover the entire system for washing and cleaning filters.
5. Next, attach the ball valve on the inlet and outlet.Their presence is mandatory, as it is in many ways easier to maintain and repair boilers, domestic hot water and heating systems.
6. The next step is to install the ebbs.They will connect the pipes from the boiler to the domestic hot water heating.
Important!Gazpodvodyaschuyu boiler tubes do not touch.Installation of meters, valves, as well as its connection and crimping will engage a specialist from the gas company, which has permission to carry out this kind of work.
7. Proceed to connect the heating system.If you are connecting the boiler to the old system, it is first necessary to wash it several times to remove the scum and salt from it.
8. Putting eviction fully supplied to the boiler heating pipe.If necessary, between the sleeves and the pipe can be installed a circulating pump.
Important!Make sure that the arrows on the taps, sleeves and filters shown in the direction of movement of water from the system to the boiler.
8. To connect to heating complete the connection of the outgoing pipe from the boiler to the heating system.Thus it is necessary that the direction of movement of the water on the fittings correspond to the real.
9. Connect WAN.All works are, in fact, identical to the connection of heating, with the difference that instead of the coarse filter placed fine filter or a magnetic filter.
10. Attach the flue to the boiler.For this purpose, the previously prepared hole of the chimney pipe plant, and then through the knee connected to fitting in the boiler flue.
Important!If you bought a boiler with an open combustion chamber, the flue pipe must comply with the following conditions:
- pipe must be made of metal resistant to acid medium;
- chimney is displayed above the ridge at home;
- in the chimney must be mounted hatch for cleaning;
- chimney itself should consist of no more than three tribes;
- of the chimney from the boiler before going outdoors should not exceed 25 cm.
In this manner, the gas boiler is installed and double-floor.The key difference in the floor of the boiler installation is allocating a special room for the boiler, where fire protection settling on the floor and walls.In addition the boiler itself is not fixed to the wall on brackets, and often fixed to the floor.
Upon completion of the installation of a bypass of the boiler, is to wait until it will be connected to a gas pipe and run the job.This stage of the boiler performs expert from the gas company.It should be noted that if you have never performed this type of work, it would be better to seek help from the masters.Of course, all the work will cost a pretty penny, but the safety and reliability of the connection of the boiler will also be much higher.