- محسن سیفی
- Control and Safety Equipment Articles
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What is a thermostat and how does it work?
The thermostat is a very practical tool that is used to regulate the temperature of the building's interior environment.
As it can be seen from the Latin name of this widely used piece, Thermostat is a word that is formed from the combination of two words Thermo meaning temperature, and Stat (changing the data form of the word Staid) meaning fixed, stopped, and unchanged, and with a structural, It simply stabilizes the pleasant temperature.
Click to view brands, models, and different types, find out the price, and Buy A THERMOSTAT.
This temperature regulator is used in all types of heating and air conditioning equipment (types of engine houses, packages, chillers, air conditioners, etc.), greenhouses, furnaces, and steam boilers, and all types of household appliances such as washing machines, dishwashers, water heaters, and car air conditioning systems. And there are many other uses.
The important thing about the thermostat is that this part works automatically and basically it is connected to the device whose heating or cooling level should be kept constant and gives the command to operate or stop the operation.
The general function of the thermostat is that by disconnecting or connecting the circuit of the device, it prevents the increase or decrease of the air temperature beyond the permissible limits, and by using this device, energy consumption can be saved to a large extent.
Types of thermostats
Thermostats, like any other tool in the field of precision instruments and safety control, have different types for different and diverse applications, however, they can be categorized based on the following parameters:
- Temperature range
- type of action
- installation location
- Cold season or hot season
- Sensor type
- Working range
- Number of performance steps
Based on the temperature parameter
This is the simplest application that can be expected from a thermostat. The temperature parameter divides thermostats into two types refrigeration and heating thermostats, specifically, the refrigeration type is used to keep low temperatures constant (such as the temperature of industrial refrigerators, server rooms, cold rooms, etc.) and the heating type is used to keep it constant. The ambient temperature is used in high temperatures (such as hothouses, furnaces, etc.).
Based on the type of performance
This is the simplest application that can be expected from a thermostat. The temperature parameter divides thermostats into two types refrigeration and heating thermostats, specifically, the refrigeration type is used to keep low temperatures constant (such as the temperature of industrial refrigerators, server rooms, cold rooms, etc.) and the heating type is used to keep it constant. The ambient temperature is used in high temperatures (such as hothouses, furnaces, etc.).
Based on installation location
Thermostats can be divided into the following 4 models according to the exact installation location
- Room thermostat
- Channel thermostat
- Wall thermostat
- Immersed thermostat
Based on the application in the cold or hot season
It should be noted that some thermostats are used in winter and others are used in summer. Of course, there are thermostats that can be used in hot and cold seasons.
Based on sensor type
The most important part used in the thermostat is its sensor. Thermostats are divided into the following 4 models based on the type of sensor:
- Bimetallic thermostat
- Lantern thermostat
- Diaphragm thermostat
- Rheostat thermostat
Based on the number of performance steps
Some thermostats keep the ambient temperature at a constant number during one stage, which is called a single-stage thermostat; Others do this in two stages and they are called two-stage thermostats.
There is also another type of thermostat called a step thermostat.
Based on performance range
There are two common types of thermostats based on their performance range:
- Subzero thermostat
- Thermostat above zero
Thermostats can also be divided based on the technology used; Two common and popular types of these products are electronic thermostats and electromechanical thermostats.
The electronic type of these products transmits the disconnection or connection command by the sensor to a miniature relay, but the operation of electromechanical thermostats is a little more complicated.
This widely used tool receives the message from the thermal sensor and then disconnects the electronic circuit of the device through the mechanical interfaces that are transferred to the microswitch.
The two advantages of electromechanical thermostats compared to electronic ones are durability and higher life span and the simultaneous use of two sensors.
Points to consider when buying a thermostat
As a rule, the variety of products and the many uses of thermostats in the industry have caused buyers to pay attention to many points in choosing a thermostat, however, the most important points that can be effective in determining the selected thermostat are:
- Knowing the desired temperature range
- Having the ability to detect and display failure by the thermostat
- Thermostat dimensions
- The way and quality of temperature control and...
Dear ones, you can read the information on all types of temperature control and measurement equipment and get information about the updated prices of each of these products by referring to the temperature equipment website, the control, and safety section, and the temperature control and measurement section.
You can also read the article FAN COIL THERMOSTAT for more information.
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Final speech
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In Iran, the first and most famous specialized group in the field of building installation equipment, air conditioners, and all equipment for swimming pools, saunas, and jacuzzis since 2004, DamaTajhiz is a specialized group. Refer to the time of this group. For more information, you can get advice from the experts of DamaTajhiz Engineering and Production Company by calling 021-88822550.
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Related products
ARTHERMO wall thermostat model ARTH300
- Connection type: bottom (vertical)
- Operating temperature range: 0 ~ 90 ° C
- Protection standard: IP40
- Country of manufacture: China
Danfoss thermostat Model KP78
- Automatic reset
- Working temperature ranges from 30 to 90 degrees Celsius
Honeywell Immersed thermostat Model L4188
- System: Analog
- Sensor type: mechanical lantern
- Operating range: 25 to 95 degrees Celsius
Honeywell Two-season three-cycle thermostat T6373
- System: Analog
- Usage: two seasons (cooling and heating)
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- Season change button: Yes
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Johnson Control Antifreeze Thermostat Pen A19ACA-25C
- Function: manual reset
- Capillary length: 1.8 meters
- Differential (fixed): 1 degree Celsius
- Working temperature range: -5 to +28 degrees Celsius
- Constant error coefficient in all temperature ranges covered
Two-season Honeywell room thermostat Model T4360
- System: Analog
- Usage: two seasons (cooling and heating)
- Advance the command to a fan cycle
- On and Off Button: Yes
- Season change button: Yes
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