The mixing unit for floor heating
In the human being, which is inindoors, greatly influenced by the prevailing temperature conditions. The optimum temperature for the person in a residential area at a height of growth is 19 - (20) degrees Celsius, at 22 floor - (25). The best solution in this case is the system of underfloor heating, which is considered an important part of the mixing unit for floor heating.
- Purpose mixing sets
- The design of control valves
- The principle of operation of the mixer
- Types of mixing sets
- Control options: differences
Purpose mixing sets
The mixing is used in systemsheating. Typically, boiler heating system supplies water at a temperature of about 70 - 90 degrees above zero, because it is a measure necessary for the radiator heating. But water underfloor heating system is a low-temperature heating system that requires a coolant temperature that reaches 25 - 35 degrees.
Mixing unit and is intended to reduce thewater temperature by mixing hot heat carrier return flow - fluid that has returned from the heating device and gives off heat. mix with Units equipped with all valves, units and other elements, which manage and control the temperature regime.
Furthermore systems of underfloor heating mixing unitswidely used for the organization of radiant heating - wall and ceiling, as well as for heating greenhouses and open areas. However, the collector for water floor often used to stabilize the temperature of the fluid in the pipe in the floor heating system in residential areas - in their own homes and private homes on one family.
The design of control valves
Collector for warm water floor consists ofthese parts: the control valve (the valve), the circulating pump, electric control valve, ball valve, check valve, filter, balancing valve and other fittings.
The mixing unit, as mentioned above,It is intended to mix with water from the return line. Regulation is made valve that is installed in the supply reservoir and thermostatic head that has a remote immersion sensor. Balancing valve, which is in the mix with the line, sets the optimal ratio of the coolant, which is supplied from the forward and reverse link.
Manifold for underfloor heating may furtherstaffed by itinerant thermostats and other measuring instruments, air vent and drain valve to drain the water. A wide range of instruments allows you to accurately calculate the energy at the expense of installing the heat meter.
As materials for the control valvesused brass and bronze for pipes - neozinced black steel, housing - cast iron. Sealing is accomplished with the use of flax. The absence of the zinc coating enables mix with nodes where used as coolant water glycol entering into reaction with zinc.
The principle of operation of the mixer
The pump runs constantly and provides the pipescoolant current flows in the valve and the desired amount of time required preset hot water temperature. This achieves the necessary level of temperature of the water floor heating.
It adjusts only the amount of coolant,so warm floors never overheat and rupture construction impossible. A small valve provides stable bandwidth, very smooth control of the temperature in the room.
It's important to know! The temperature of the floor is of two kinds - comfortable and heating. water floor system in the first case creates a comfort in a house and their heating does not occur on the power consumption is achieved by additional heating elements. In the second embodiment, similar to the floor and yet performs a heating element, and the heating rate will be significantly higher.
Mixing units are installed in the collectorcabinet at the beginning of the floor heating system installation. Chance of a left-sided and right-sided installation site mix with. You can also hold a silent install.
Types of mixing sets
Mixing units for water floor heatingdivided into several types. If you have purchased an individual collector, it should be remembered that it is connected to only one user. If you select individual group nodes, they will connect high-power consumer. It is also possible to connect several smaller power consumers.
represented at the domestic market andTrunk mixing units for the connection of several consumers, who are characterized by large capacity. Buyers are also offered heat transfer model. low-power consumer is connected in a closed circuit. There are models with different number of outputs - from two to twelve.
Control options: differences
- Control in manual mode is performed as follows: mixing unit is used without the valves manually set percentage of mix with. But such a collector for water floor heating is not accepted to be used for high-temperature heat sources, when the maximum flow temperature is over 50 degrees.
- to limit the temperature management modeIt happens this way: in the way valve to install a thermostatic head with a remote sensor type. In the loop of floor heating temperature is limited according to the set temperature on the head, which is sold separately.
- Outside temperature is controlledunder this scheme: on way valve to install the drive, connected to the thermostat. The underfloor heating circuit temperature is adjusted according to the temperature change on the street. Power and control are supplied separately.
Thus, if you decide to install the systemwarm water floor, you should think about purchasing the mixing unit, which will help to reduce the water temperature by mixing hot fluid return line. On the market are different models, it depends exclusively on the requirements of the heating system.