The mixing unit for floor heating with his hands - the scheme and order of installation

Artificial floor heating is not the main way of heating.But for a truly comfortable environment, especially in families with small children, the installation of such a system of more than appropriate.Despite the apparent complexity of the design, all the work on installation of the mixing unit for floor heating can be done with your hands if you know some of the features of the circuit arrangement.That will help you understand this article.

Appointment mixing unit

Note! SU mounted when the heating system is connected to a common heating system.If it works for a separate heat source is installed, then this site is not necessary, since the individual thermal energy source can be set to any desired temperature.However, this option is more suitable for a private home, where the mixing unit may be needed, especially on the first floor, where the battery hotter.Coolant

output from the boiler to the heating system, generally has a temperature of about 95 ° C.During the movement of water through the pipes gradually decreases its value, but, nevertheless, it reaches the radiators at about 60 - 65 ° C.Therefore, all the radiators are a class of high-temperature appliances.This is easy to see, even only slightly touching the radiator in a well-heated structure.

C water floor heating system a little differently.This is the engineering design of low temperature, because excessive heating of its pipes will not only strain the topcoat, but also to the inconvenience of moving around the room, and even obvious discomfort.It is unlikely that anyone will enjoy walking on the hot ground (to stand or sit on it).Consequently, in the pipes which are laid underneath the water must come from the other, the lower temperature.According to the standards must be heated to a surface level + (30 - 35) ° C, max.And even this is not to everyone's taste.

Components node

pump

responsible for the forced displacement of the coolant pipes in underfloor heating and mixing of hot and cold water at the time of actuation of valves.Estimated cost - about 2390 rubles.

Manifold block

price of the finished product - from 15 850 rubles.It is a ready-to-install kit, which installed all the necessary equipment.

It can be made from a piece of pipe, which is "suppressed" from one end.For the circulation of the coolant in the tube is welded a few taps (a pair of 1 system) on the basis of the comb.But the manifold block is easier to buy, as the self-build outlets, establish the elements of valves is quite difficult.

Its price is relatively low.For example, the collector into 2 separate heating circuits (in the picture - 6) costs about 4980 rubles.

valve with thermostat (2 or 3-way valve)

His task - to ensure delivery of hot water while cooling the coolant in the system of floor heating to the set temperature (for her "mix with").

balancing valve

It is designed to relieve excess coolant in the return line in excess of the nominal pressure of the pipe floor heating.

addition can be mounted - the filter, showing the temperature devices, and so on.One possible scheme is shown in Figure:

Although not the only one.Here are some examples of connection.

principle of operation of the mixing unit

This scheme is all clearly explained.But this is only one option, as podmes carried out in different ways.The particular scheme depends on the area of ​​the room in which the heating system is mounted.

Hot water output from the boiler is supplied as a heating radiator, and to the collector of the mixing unit, and constantly "on duty" there for as long as the valve flap closed.Once the water in the circuit cools below the set limit, the shut-off valve is activated, and a portion of the coolant from the heating system enters the tube floor heating, and the excess liquid is removed in the return line.

Thus, in the process of constantly ensured uniform heating circuit.

Fitting

He mounted wherever convenient:

• in a room with floor heating circuit.
• in home boiler.

• In a separate or common cabinet for collectors, if the heating is organized in several rooms.

mounting Features

• for floor heating circuit used plastic, relatively soft tube (a review of all options pipes for floor heating).This is due mainly to their limit bending radius, which is significantly less than that of metal products.But the collector SS in the installation site is secured necessarily tough.
• mix with valve is always placed at the entrance to the circuit.
• All electrical devices (eg, pumps) are connected to the earthing system.
• Specificity is determined by mounting circuit of the heating system in the home.Possible mixing unit connection illustrated.

• final stage - setting of automation components for the required characteristics of the system (valve activation temperature, the maximum pressure in the pipe, and so on).It is made individually for each circuit, and this issue requires a separate, detailed consideration.

In principle, the above information is sufficient to perform their own installation of the mixing unit in a private home or apartment.At arrangement of the heating circuits on large areas - some nuances.For example, do not use 2, and three-way valve + additional control elements.But this is (like automatic setting) is a separate issue, and it is not directly related to the domestic use of mixing devices.