Knowledge of central air conditioning thermostat

Knowledge of central air conditioning thermostat

The principle of central air-conditioning is the same as that of household air-conditioning, and its purpose is to set the room temperature according to the comfort of the owner. How to set a comfortable temperature? A thermostat is needed at this time. The thermostat plays a very important role in the operation of the central air-conditioning. Here, the editor mainly introduces some small knowledge about the central air-conditioning thermostat. It is very important to understand it.

　　What is a central air-conditioning thermostat?

　　The temperature controller is an electric switch device that controls the temperature of an air-conditioned room. Central air-conditioning thermostats are specially developed and designed for controlling fan coil units, and are widely used in heating, cooling, and ventilation control. The speed of the fan can be controlled manually or automatically by adjusting the wind speed button to achieve the purpose of controlling the room temperature. There are two types of central air-conditioning thermostats, one is mechanical and the other is liquid crystal. Nowadays, LCD is generally used. One of its advantages is that it is equipped with a remote control, which can realize remote control operation. The thermostat is used to turn on and off the air conditioner. It is mainly used to control the fan and solenoid valve. Its functions are mainly to adjust the air temperature, humidity, airflow speed, cleanliness, timing, etc.

　　The working principle of the central air-conditioning thermostat:

　　The working principle of the central air-conditioning thermostat is actually not as complicated as we thought. Speaking of thermostat, it is actually a kind of electronic switch device that can regulate the temperature of air-conditioned room. Generally, the temperature control range of a thermostat is between 18°C ​​and 28°C. Its working principle is actually to regulate and control through the principle of pressure action, and push the contact points in the controller to work through pressure.

　　Matters needing attention of central air-conditioning thermostat:

　　 1. The wiring must be operated in accordance with the correct wiring diagram. Do not allow magazines such as water, mud, dust, etc. to be mixed into the thermostat, otherwise the parts will be damaged.

　　2. The output control power of the thermostat is related to the safety and stability of use. If it is selected incorrectly, it may cause serious consequences. The thermostat products are marked with output control voltage and current, and the output control power can be obtained by multiplying the output control voltage and current. The operating power of the controlled equipment must be less than the output control power of the thermostat. Otherwise, the thermostat will be damaged, and serious fire will be caused!

　　3. It is better to have free flowing air around the place where the thermostat is installed and the temperature should be stable. Also avoid installing the thermostat in a place exposed to direct sunlight. When the interior is being decorated, it is best not to install the thermostat first.

　　4. Some brands of thermostats support multi-voltage input central air-conditioning thermostats. Ensure that the input voltage is consistent with the allowable input voltage. There is another point that needs to be raised, that is, some thermostats do not support the on and off of DC power, or the DC voltage that can be switched on and off is relatively small. When buying a thermostat, please consult with the merchant to avoid unnecessary Trouble.

　　 Summary: The thermostat is the key to controlling the temperature of the central air conditioner, but few people know it and can use it correctly. Therefore, after installing the central air conditioner, you should carefully ask the installer about the correct operation steps of the central air conditioner, and read the manual of the central air conditioner thermostat in detail, which will help you.