Installation of heating equipment and installation of Underfloor heating
Установка котла
Regardless of the type of boiler, it must be installed in accordance with the instructions attached by the manufacturer, based on fire safety rules When installing a floor boiler, you will first need to build a base made of fire-resistant materials (concrete screed or ceramic tile coating)
In heating systems with natural circulation you will need to mount the boiler much lower than the pipe layout According to the laws of physics, heated water will go up, and cold water will go down This results in a small pressure drop between the boiler and the radiator as components of the system with the highest and lowest temperatures respectively Such a pressure drop will create the conditions necessary for the circulation of the coolant
Each modern heating system must be equipped with a specific list of devices and devices that are installed, most often, in the boiler room, near the boiler This list includes the expansion tank, circulation pump, shut-off valves and safety devices In addition, water heaters and other equipment can be installed in the boiler room
Currently most of the boilers are equipped with a forced smoke removal system using a built in fan In this case, the chimney does not need to be brought up, but can be laid through the wall in a suitable fire-safe place The operation of the boiler will depend on the availability of electricity
All the details of installation of heating systems and water supply systems are discussed in detail in the subsection " Heat in your home»
Installation of radiators
The most important stage of installation of the heating system can be called the process of installation and connection of radiators Radiators are supplied with brackets, plugs and valves The radiator has 4 connection points (2 at the top and bottom), which allows you to connect it to the pipeline in different ways The method of connecting radiators is selected based on a number of conditions and wiring diagrams
When connecting diagonally, the connection point of the supply pipeline is located on one side at the top, and the return pipeline is located on the opposite side at the bottom As a result, the heat carrier will go diagonally-in the direction from top to bottom, thereby increasing the intensity of heat transfer in the system
In radiators with a lower connection the supply and return pipes are connected at the bottom from opposite sides of the heating device In this case, the heat carrier goes along the lower section of the radiator, and the heating of its upper section is achieved by convection
There are radiators that are structurally designed only for the lower connection In them, the supply and discharge pipes are located next to each other, and the separation of warm and cold water flows is provided by special devices
On sale there are radiators whose design provides only the lower connection In them, the supply and discharge pipes are located next to each other, and specialized devices are responsible for separating the flows of cold and heated water When selecting heating devices, it is necessary to take into account that often their real thermal power does not reach the parameter stated by the manufacturer, since it is influenced by many factors: the installation method, connection scheme, convection parameters, and so on The level of heat transfer depends on the presence of barriers: voluminous curtains and wide window sills that prevent air from freely circulating through the room To compensate for this decrease in efficiency, it is necessary to increase the power of the radiator by 10-15% To increase heat transfer, heat-reflecting sheets can be placed on the wall surfaces behind the batteries, for example, with a foil coating
Batteries are placed mainly under Windows, and in certain situations — next to the front door or on the exterior walls of the house Installing batteries under Windows eliminates heat loss and prevents condensation from forming on the window panes
To ensure optimal heat transfer, minimum distances must be observed when mounting batteries:
- from the floor-at least 10 centimeters;
- from the wall - from 2 to 5 centimeters;
- from the window sill — at least 10 centimeters
All batteries are equipped with shut - off and control valves Also, the equipment is necessarily equipped with a Mayevsky tap, which is necessary to release excess air from the system, which is especially required in the first days after the heating season
The heat carrier constantly contains a certain amount of air, which accumulates at the top, forms air jams, interfering with the unhindered circulation of water and destabilizing the functioning of the heating system By concentrating on the top of the radiator, the air reduces its power To combat this problem helps the Mayevsky tap — an elementary and reliable device with which the heating system can be quickly razvozdushit The tap must be installed at the top, at the point opposite the inlet point of the coolant It is placed on the thread instead of the plug To seal the joint, a rubber sealer is used
On the supply and return lines, you must always put shut-off valves, which can be used to cut off the radiator from the heating system for scheduled maintenance or repair work The taps are connected to the radiator by means of an American plug
To regulate the heat transfer of radiators, automatic thermostats (thermoregulators) are used, which are mounted in front of the batteries in the zone of the coolant inlet These devices are necessary for effective management of heat input from batteries and achieving an optimal microclimate in the room Individual types of thermostats can be programmed for several operating modes, including based on the time of day (day / night mode)
A manual tap can be used to control the radiator power It is also able to act as a locking device in case you need to perform a quick disassembly of the radiator
Radiators are installed in stages They are mounted exclusively on walls with a finished finish The batteries are fixed to the brackets supplied by the manufacturer together with the heating devices
The installation process of your radiator:
Marking the mounting points of brackets and fixing them on the wall
Installation of shut-off and control valves, air valves and plugs
The fixing of the radiator on the brackets
Connecting the radiator to the heating system connections according to a pre-selected scheme
When selecting the type of heating devices, it should be taken into account that in municipal district heating systems, the temperature of the coolant can exceed 100°C, and the pressure can reach 10 ATM In addition, there is a problem of hydraulic shocks – when testing or starting pumping equipment after the start of the heating season For this reason, experts recommend buying bimetallic or cast-iron batteries for multi-storey buildings, since they are designed to work under a pressure of 16 ATM