How does the thermostat work?
Thermostat is a device used to control the heating or cooling system to maintain a certain temperature or maintain the temperature within a certain range. For example, in the home, this device can automatically turn on the heating system when the household temperature drops or turns on when it is too hot. When warm or cold air fills the room and the desired temperature is achieved, the device turns off the system. There are two main types of thermostats: mechanical and digital. Many digital thermostats are also programmable, allowing the user to set different preferred temperatures for different times of the day or days of the week.
mechanical thermostats
The mechanical thermostat uses physical means to assess the air temperature and activate the switch, which turns off when off the heating or cooling system. There are several types of sensor technologies that can be used in mechanical thermostats such as bikova strips, wax pellets, lamps full of gas or tube fillby air. Each of these types of sensors will respond to temperature changes, for example by expanding or contracting, and triggers the correct switch to increase or reduce temperature. Bulb full of mercury was once commonly used in thermostats, but its use has been terminated or forbidden in many places due to the dangers of mercury.
The most common of these technologies in domestic thermostats is a bimetallic belt. This technology uses two thin strips of different metals - such as copper and iron, copper and steel and brass and steel - connecting together and converted into the coil. As the temperature changes, different metals are expanding or withdrawing at different rates, causing a strip bending. When the belt bends sufficiently to touch the electrical contact and complete the electrical circuit, it turns on the heating or the cooling system. If the temperature changes sufficiently to release the stripe, the contact will be lost and the system turns off.
Digital thermostats
Many houses now have digital thermostats that use electronic sensors instead of physical means to monitor temperature changes. Based on the temperatures read by electronic sensors, these devices are switched on or off the cooling or heating systems as needed. Digital thermostat usually requires one or more power batteries. The buttons and switches allow the user to control the settings and the display screen shows the settings and the current temperature.
Setting thermostat
To set the mechanical thermostat, the user usually rotates the dial or move the lever. One common type of mechanical thermostat has a dial that prints a range of temperatures on it, and the user simply turns the dial until there is a small arrow or line at the preferred temperature. Another type is rectangular and has two ThPři levers to allow the user to set the minimum temperature and maximum temperature. These thermostats often have switches that allow the user to turn ont or turn off the heating or cooling system as well as ventilation fans that could be part of the system.
6 Some newer models have touch screen display instead of separate buttons and screens. With a programmable model, the user could decide to have different settings for certain times, for example, when the residents of the house sleep when they first wake up or when they are away at work or school. Programmable settings can not only be from comfort from comfort, but can also save energy by preventing unnecessary switching on or off heating or cooling, for example, when no one is at home. Depending on the model, these programmed times may be when the device begins to modify Temperature or the device could start working earlier to achieve the desired temperature in the programmed time.ideal home settings
Most people set their thermostats at temperatures or ranges in which they are most comfortable. But some people prefer to saveEnergy and save money by adjusting their settings by several degrees. Many people consider the most comfortable room temperatures to be about 70 ° Fahrenheit (21.1 ° C) to 72 ° Fahrenheit (22.2 ° Celsius). Most people will not notice the difference between 72 ° Fahrenheit (22.2 ° Celsius) and 74 ° Fahrenheita (23.3 ° Celsius), so that the thermostat to turn on the air conditioning at a slightly higher temperature can save energy and money without being household.
Some experts recommend setting the thermostat at 77 ° Fahrenheit (25.6 ° Celsius). These settings can be adjusted to different seasons of the year, partly because people generally wear more clothes during colder months or less clothes during warmer months, regardless of whether they are inside or out. People often more comfortable sleeping at lower temperatures, so programmable thermostats could be set to drop the temperature to about 62 ° Fahrenheit (16.7 ° Celsius) during normal sleep hours.