What Is The Function Of Air Conditioning Capillary in Operation?

A capillary is a single copper tube with a small diameter, a long length and a certain hardness.

Air conditioner selection of capillary diameter between 1-1.5㎜ (than the refrigerator capillary diameter to be thick),

The wall thickness is about 0.5㎜, and the length is between 600-2000㎜.

The length is determined according to the need of air conditioner matching,

Different power with different length and diameter.

Whether the capillary tube is matched with the whole refrigeration system directly affects the cooling capacity of air conditioning or the heat produced by heat pump.

If the diameter of capillary tube is increased or the length of deceleration is reduced, the resistance decreases and the refrigerant flow increases.

Evaporation temperature increases; On the contrary, the resistance increases, the refrigerant flow will decrease, and the evaporation temperature will decrease.

This split type air conditioner is available to meet the needs of large cooling capacity.

(especially the heat pump type air conditioner), equipped with two or more capillary.

In order to make full use of evaporation and condensation areas, so that they will not produce uneven liquid separation phenomenon,

They should be connected with the corresponding evaporator, condenser and related parts.

Special attention should be paid to the position of each capillary when replacing or repairing a refrigeration system with multiple capillaries

Do not make mistakes, let alone arbitrarily change the diameter and length of the original capillary,

Otherwise, it will affect the performance and function of the air conditioner after repair.

The capillary tube is welded between the condenser infusion tube and the evaporator inlet to play the role of reducing pressure and throttling.

It can prevent the normal temperature and high pressure liquid refrigerant filling liquefaction in the condenser from directly entering the evaporator.

Reduce the pressure in the evaporator, is conducive to the evaporation of refrigerant. After the compressor stops running,

Can keep the pressure of the low and high pressure parts dry through the capillary tube.

So that the compressor is easy to start. Since the cross section of the capillary cannot be adjusted,

Therefore, when the working condition of the air conditioner changes, the capillary is thin and long, which is easy to cause blockage.

Therefore, the refrigeration system is required to be clean and free of impurities.

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