What is an air conditioner throttle? Structure, use and how to fix when clogged

The throttle valve is one of the most important parts of the air conditioner. This valve is directly involved in the generation of cold air in the cold unit of the air conditioner. To learn more about the throttle, let’s find out with lassho.edu.vn through the article below!

What is an air conditioner throttle?

Refrigeration throttle is a type of valve used in the refrigeration system of an air conditioner. The main job of the throttle valve is to transport gas from the liquid state to the vapor state to provide cold vapor that creates cool air inside your room.

In fact, the air conditioners used in the home will often use capillary tubes . This is also a type of throttle valve, but the difference between the capillary tube and the throttle valve is that the gas flow adjustment cannot be changed automatically but must depend on the diameter of the pipe.

Air conditioner throttle structure

Refrigeration throttle valve structure includes the following parts:

part name	Mission
Heat sensor bulb	Sensing and adjusting the system automatically to suit the needs of the user.
Capillary tube	The pipe has a length of about 0.5 – 5m , a diameter of about 0.6 – 2mm . It has the function of transferring substances and vapors out, and at the same time keeping the gas flow constant.
Folding screen	Prevent gas from escaping.
injector	Allows the tip of the air conditioner throttle to blow cool air to the outside.
Saving to the indoor unit	Adjust the speed and working temperature of the valve.
Cap	Close it to prevent steam from escaping.
Adjustment screw	Used to adjust the working pressure of the valve.
Valve spring	The valve head position will receive the gas pressure pushed out by the spring.
Fluid from the high-pressure reservoir to	Used to store the pressure to the pressure most suitable for the valve.
Filters	Filter the liquid and convert it to a gas.
Ty van	High-grade stainless steel, plays the role of controlling the opening and closing process of the valve.
Diaphragm	The part that prevents the gas from escaping.

Working principle of air conditioner throttle valve

Operation steps	Contents of the steps
Step 1	The gas will have low pressure , and low temperature after passing through the throttle valve.
Step 2	After reaching the indoor unit, the gas will absorb heat from the surrounding environment. Then the air in the room will be sucked by the fan to pass through the indoor unit to cool and then return to the room.
Step 3	The heat-carrying gas will be brought to the compressor and compressed to a high pressure level.
Step 4	Gas at high temperature and pressure is brought to the outdoor unit for cooling.
Step 5	The gas will continue to be brought to the throttle valve to reduce the pressure and temperature then start a new cycle of operation.

Signs of a broken throttle valve and how to fix it

Recognizing signs

When your air conditioner shows the following signs, it means that the throttle valve of the machine is clogged and needs to be fixed immediately to avoid affecting the efficiency as well as the life of the air conditioner:

• The air conditioner is not cold or the cooling is very weak.
• Air conditioner leaks water in the indoor unit.
• The machine is stuck with snow on the indoor unit, or on the copper pipe.
• The air conditioner runs and stops continuously.
• The fan in the outdoor unit is not hot.
• The flow increases, the discharge pressure increases.

How to fix

In case the throttle valve is blocked, you need to conduct an inspection to thoroughly determine the cause, identify the telltale signs to give the fastest treatment directions.

Usually, the most common and fastest solution is to replace the new throttle valve for the air conditioner, because when the valve is blocked, it will not be able to completely fix it.

Above is an article that provides information about air conditioning throttle, structure, use as well as when the throttle is blocked, how to fix it. If you have any further questions, please leave a comment below for a timely response!