Any heating system requires the right choice of wiring diagram. This will help to organize a more efficient flow of coolant with minimal power loss. For those who want to preserve the aesthetic appearance of the room without violating the harmony of its interior, and to facilitate installation, it is recommended to choose a heating radiator with a bottom connection, which is almost always equipped with a built-in thermostat. Batteries of this type are panel and steel with 1-3 heating panels.
What heating systems are used
The lower connection of heating radiators is used for the following СО:
- Single pipe lines. In this case, bypass wiring is organized, which helps prevent uneven heating of the radiator circuit, where nearby warm up to the maximum, and the subsequent ones do not receive the necessary heat reserve.
- Two-pipe highways. For this option, wiring “binoculars” using shut-off or control valves is used. Heating of radiators occurs evenly, therefore, temperature compensation is not required.
- Combined node. It is provided with an internal bypass channel and is mounted in both single and double pipe systems.
An air vent must be installed on each radiator. When choosing the lower connection, it is necessary to provide for the factor that heat loss increases by an average of 15%.
Advantages and disadvantages
Radiators with bottom connection differ in the following advantages:
- material saving, only two short leads are needed to connect the radiator;
- aesthetics and harmonious combination with any interior, the pipeline exiting the wall is almost imperceptible, and the design does not interfere while washing the floor;
- uniform distribution of coolant through the battery through the use of vertical bypass and the ability to control the intensity of water intake due to shut-off and control valves;
- ease of implementation of any design decision;
- providing unhindered access to control elements and bushings;
- quick heating of the bottom.
In addition to the advantages, radiators with a lower connection have some disadvantages:
- not suitable for gravity heat supply;
- without fail, an air bypass valve is installed;
- a continuous booster pump is required for continuous fluid circulation;
- uneven heating of parts of the registers;
- to eliminate defects in the pipes, it will be necessary to dismantle the floors and violate the integrity of the finish;
- dependence on the availability of energy supply.
Before choosing the bottom connection of radiators, it is worth evaluating the pros and cons and only after that proceed with the installation.
What radiators are used
For the lower connection, there are some requirements that radiators must meet, since in this case the coolant is distributed over the continuous zone and the usual sectional designs will not work here.
Panel
Made of aluminum alloys. Special U-shaped ribs increase the area of heating and heat transfer. The front side is made in the form of a one-piece panel.The main advantages of such a battery include: low weight, attractive external characteristics, energy saving, low price, a wide range of models, durability.
For social institutions: hospitals, schools, kindergartens, special options with a smoother surface are issued, which facilitate regular care.
Profiled steel
Rectangular panels of simple design can be of different sizes. The battery consists of several plates connected by welding, inside of which are placed vertical elongated channels designed for circulation of hot liquid. To increase heat transfer, U-shaped steel ribs are used.
This battery has a number of advantages: long service life, more than 25 years, compatibility with most types of boilers, there are no strict restrictions on the choice of coolant, aesthetics, ease of installation.
Since radiators made of profiled steel are prone to rapid contamination, it is recommended to install mud filters in parallel during installation.
When acquiring a design, it is important to take seriously the quality of the coating, which should well protect the selected specimen from corrosion and maintain its original characteristics for many years of operation under intense thermal stress, where the maximum temperature reaches 130 ° C.
Consumables for lower eyeliner
Installing batteries with a lower connection is relatively simple if you first take care of the necessary fittings and other consumables:
- fitting;
- set of adapters;
- packing means;
- sleeves for soldering;
- thermostatic control valves;
- threaded "American";
Mayevsky's crane for air release - shutoff valves, installed at the inlet, outlet, ball valves allow you to block the flow of coolant into the radiator and regulate the intensity of fluid intake;
- the plug is designed for the fourth input in the battery, painted white and does not spoil the overall appearance of the structure;
- tow or sealing paste;
- Majewski tap is an air vent, most often comes complete with adapters.
The list depends on the type of radiator selected. Also used fasteners in the form of hooks, brackets, floor installations.
Mounting Features
There are three bottom connection methods:
- use of conventional batteries with bottom holes;
- the use of special radiators with a characteristic design;
- through a set of accessories at the bottom of the selected model.
Installation can be done in various ways.
With side bends
Pipes are placed below the inside of the floor covering or above the floor. The radiator is mounted on the wall and a pipeline is held to it. To facilitate the dismantling process, shutoff valves are installed on each side.
With adapter
If it is not possible to lead the pipeline to the battery on both sides, an adapter is used, which is inserted into the hole from the bottom, and a tube with anti-corrosion properties is placed on top.
With flow extension
This type of installation is not compatible with gravity systems. The flow extension is mounted in the lower hole of the heating product. In this case, there are no bends to the upper part of the model.
The most optimal bottom connection is the installation from below, for this a specialized radiator is purchased, which is already provided with a temperature regulator, two pipes with the desired direction and the possibility of introducing an adapter for the flow direction.
With any connection method, the battery should be located 10 cm from the floor, window sill and 5 cm from the wall.Depending on the scheme, the pipeline is laid under the floor, in the wall, between the floor covering and the radiator. The selected installation method does not affect the heating efficiency.
