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What are the factors that affect the pressure of the refrigeration system?

What are the factors that affect the pressure of the refrigeration system?

The suction pressure is lower than normal due to insufficient cooling capacity, low cold load, low expansion valve opening, low condensing pressure (with capillary system), and filter obstruction.

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Why should a refrigeration system be vacuumed? How to vacuum?

Why should a refrigeration system be vacuumed? How to vacuum?

Why do refrigeration systems emphasize vacuumization? Let's take a look at the composition of the air, as shown in the figure below: Nitrogen makes up 78% of the air; Oxygen 21%; Other gases account for 1%. So let's look at, what does the composition of the gas do to the cooling system when it enter......

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What are the common protections for refrigeration systems?

What are the common protections for refrigeration systems?

High pressure protection, Low pressure protection, Oil pressure protection, Anti-freezing protection, Current protection, Overheat protection, Phase sequence protection...

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