Thermostats and thermostats for heating boilers

The temperature controller is installed on the heating boiler in order to save energy consumption, increase the level of comfort and the ability to remotely control the temperature in the room. The temperature controller is available in mechanical and electronic versions and differs in the principle of signaling:

from the coolant;
from the internal air temperature;
from climatic conditions.

The first option reacts only to the level of heating of the coolant. Here, a submersible or overhead device is usually used.

The second option reacts to the temperature regime of the air, and not to the level of heating of the heating system. The device is placed inside the building. It is connected to the control system of the unit through a thin cable that transmits a signal.

The sensor of the third type of regulator is located outside and allows you to respond to changing weather conditions. This contributes to the correction of the room temperature. The device provides economical fuel consumption. It is possible to install three types of temperature sensors.

Direct action temperature sensors

Simple devices for automatic control of the heating system in the house. They are placed on pipelines. This ensures that the valve automatically closes the internal section of the pipes, influencing the increase or decrease in the volume of the transported liquid. Structurally, it is presented in the form of a valve, spool, stem and bellows filled with material for rapid expansion or contraction when heated or cooled (paraffin, liquid composition or gas). The device, placed on pipes with a coolant, heats up and expands the filler.

The gas or liquid composition causes the expansion of the bellows, which provides pressure on the stem. A valve is fixed on the stem to close the pipe, which ensures that liquid enters the battery. That is, the heating power is regulated. The whole process is carried out independently. Devices are placed near heating appliances. They allow you to adjust the level of water heating in boilers. This is facilitated by the installation of remote or submersible sensors mounted directly into the water.

Remote control

When arranging a radiant heating system, where pipes are routed to all rooms of the room from one collector, an electric thermostat for a heating boiler will be an ideal solution. It is offered to buy an air temperature controller with one or more control modes:

maintaining the temperature in economy mode during the absence of users, "day" and "night";
programming by days of the week;
using a timer;
remote control of the heating unit (the most expensive models are equipped with a built-in Wi-Fi router to connect to a mobile phone or PC).

The convenience of the regulator lies in the placement of a thermostat with a sensor in the room where air temperature control is required, and the regulator itself is installed near the collector. When the sensor responds to a change in temperature, it transmits information to the controller. It closes or opens the heated liquid supply circuit. The signal is transmitted from the connected diaphragms, which expand under the influence of a high level of heat, which ensures the connection of the plates and vice versa.

Wired and wireless temperature sensors

According to the control method, wired and wireless thermostats for heating boilers are distinguished. The price of devices is determined by single or multi-zone temperature regimes (integration of their indicators on the supply, in the circuit, indoors and outdoors).

Wired. To ensure the high-quality operation of wired devices, it is required to connect wires that ensure uninterrupted communication of the unit with controllers located at a given point in the building and supplying signals for supplying hot coolant to a separate circuit.

Wireless (with control of the executive device via a radio channel). Adjustment and correction of work is carried out under the action of radio signals received by the sensor. Structurally, the device is represented by two 2 blocks. One of them is located directly at the heating device and is connected using terminals. The second is placed in the room to control and adjust the temperature regime. A radio channel is used to provide communication between blocks (executive and controller purposes). The controller-type block differs from the executive system by equipping an LCD screen and a mini-keyboard.

Thermal regulator

Used in tandem with a thermostat. It does not serve to shut off the liquid directly in the pipeline, but as a regulator. The device acts on the burner of the unit or the pumping system, helping to turn it on or off. The device is not cut into the heating system itself, but is connected to the equipment in the form of an electrical element that helps to disconnect the electrical circuit.

Mechanical and electronic control

Thermostats are divided into 2 categories - mechanical and electronic. The first are presented in the form of plastic boxes with a start button, LEDs and a control valve.

The choice of mechanical models includes devices equipped with a display, which displays the set temperature conditions, and real indicators. The parameters are adjusted manually, the current limit in the network is 16 A.

Electronic accessories include fine tuning system, remote control and LCD display. They are rated for currents up to 8 A.

Analog and digital devices

The analog regulator is presented in the form of a resistor that changes its resistance based on the temperature change parameters, which contributes to turning the heating elements on and off.

Digital sensors are equipped with a microcircuit that measures the temperature and converts the information into zeros and ones, the data is decoded by a processor that translates into the temperature displayed on the device screen.

How to choose a thermostat for temperature control?

For the purposeful control of the operation of the unit, a number of principles should be followed:

For heating the coolant - with a room area of \u200b\u200bless than 60 m2.

Installation of the device is relevant for old domestic AOGV, many manufacturers include it in the basic supply of modern units. Modern models of units can be supplemented with room thermostats, but old appliances cannot. According to the signals of the temperature sensor, the measured level of heating of the liquid in the system, the burner stops or starts to function. Adjustment is provided by setting the desired temperature on the panel of the unit. Energy consumption is not economical due to the increased inertia of the liquid, which ensures optimal use in small areas.

By air temperature - with an area of 60-350 m2. A wide range of devices allows you to choose products with analog regulation or digital control of the controller. According to manufacturers, the correct installation of the regulator allows you to save up to 25% of energy.
According to the heat loss of the premises - with an area of 350 m2. The placement of a weather-dependent device ensures that the heat loss of the house is replenished. When the sensor takes temperature readings on the street, the operation of the unit is regulated.

How to set the temperature mode:

The recommended temperature of the device is 20 gr.
At night, a range of 19-21 ° C is set.
In the nursery, the mode is set at 22 ° C.
The air in the room where the elderly or the disabled live is heated to 22 degrees.
Mode "antifreeze" +7 gr.
Bedroom heating +16 gr.
In the living room +20 gr.
In the bathroom +24 gr.
In the hallway +11 gr
Summer mode - + 27 gr.

The best option for placing the temperature controller is the installation in the living room or bedroom, the most inhabited rooms. When installing room thermostats, the need for a free flow of air masses to measure the temperature regime is taken into account, this eliminates the possibility of hiding them with curtains or blocking furniture. Neighborhood with lamps, TVs, neighboring boilers through the wall, touch switches, etc. interferes with the normal functioning of the device.

Installation of mechanical thermostats:

Placement 400 mm from the floor will be successful. This helps to minimize the length of the sensor. In some cases, this is inconvenient if children live in the house, the optimal height is 90 cm.

It is not allowed to place mechanical devices in the bathroom, shower room, etc. This prevents moisture from entering the device.

When installing devices in cold rooms, you should take into account the temperature regime of the regulator specified in the instructions.

Overview of popular models

CampiniCorel TY90 C2

Thermal relay for equipment operating on gas, solid fuel and electricity. The mechanical temperature control device is located outside the unit body.

The unit is controlled by a signal transmitted to closed contacts.
The scale of the controller is designed for temperature 5 - 35 gr., Accuracy up to 0.1 °C.
Communication with the gas automatics of the unit is wired.
The price of the device is 800-900 rubles.

lt08 LCD

Programmable regulator that allows you to set the weekly regulation of the boiler using 8 settings. Installation is done in the room. The work is carried out along with the standard temperature sensor of the heating device.

The thermostat scale has a step of 0.5 degrees.
The temperature regime includes the boundaries of 0 - 40 gr.
The standard mode offers an optimum temperature of 25 °C, while the economy mode offers 16 °C.
Power is provided by 3 regular AA batteries.
Designed for wired power through a cable up to 50 m long.
Price - 25-30 dollars.

Intelli Comfort CH140GSM

The thermal relay is designed for remote control via a cell phone via SMS. Works well with heating units and air conditioning devices.

The controller is equipped with a programmable processor that allows you to set the operation of the unit for the whole week.
Given the possibility of adjusting the operation of cooling devices, the scale of the device has been expanded to 60 gr.
The transfer of information to the automation of heating equipment is carried out wirelessly.
It is possible to connect the module for smartphones such as iPhone and Android.
Price - 18 800 rubles.

Thanks to the constant improvement of devices, it is possible to automatically control any type of heaters. The thermostat is successfully used to create comfort in a warehouse, garage, house or apartment.