What is the low pressure side and high pressure side of the refrigeration cycle?

Two different pressures exist in the cycle – the evaporating or low pressure in the “low side,” and the condensing, or high pressure, in the “high side.” These pressure areas are separated by two dividing points: one is the metering device where the refrigerant flow is controlled, and the other is at the compressor.

Why does the compression refrigeration cycle have a high pressure side in a low pressure side?

“high side” removes the oil entrained in the discharge gas and returns it to the compressor crankcase. “high side” allows the technician to visually see the dcondition of the refrigerant in the line.

What is the difference between high medium and low temperature refrigeration?

What is the difference between high, medium, and low temperature refrigeration? – Quora. High temperature is the air conditioner range. Medium temperature is food storage temperatures above zero celsius. Low temperature is frozen food and ice cream.

What is high pressure and low pressure in AC system?

The pressure reading from the low side should be between 25 and 30 psi and the high side between 200 and 250 psi. But if you see the AC low side high, high side low, such as the low side is 100 and the high side is 150, there might be problems with any of the inner components.

What is the high side pressure on a refrigerator?

57 pounds per square inches
At the highest temperature, the coil normally runs at a pressure of 57 pounds per square inches gauge. So it is very understandable that the normal pressure gauge in R134a ranges between 22 to 57 pounds per square inch.

What is the purpose of refrigerant?

Refrigerant is a compound typically found in either a fluid or gaseous state. It readily absorbs heat from the environment and can provide refrigeration or air conditioning when combined with other components such as compressors and evaporators.

What is the high side of a refrigeration system?

The high side, or discharge line, will be the line connected to the compressor from the bottom or lower position. It will not be wrapped in insulation and will be warm to the touch. This is where freon exits the compressor as a liquid.

What happens to the pressure and heat in the evaporator?

When the liquid refrigerant reaches the evaporator its pressure has been reduced, dissipating its heat content and making it much cooler than the fan air flowing around it. This causes the refrigerant to absorb heat from the warm air and reach its low boiling point rapidly.

What is low temperature refrigeration?

Low temperature refrigeration is defined as those applications requiring evaporator temperatures in the range of -20 oF down to -250 oF. Vapor- compression systems are one form of mechanical refrigeration. Such systems all have the characteristic of recalculating the refrigerant in a closed circuit.

What is high temperature in refrigeration?

Temperatures above the 35° to 38°F zone may be too high. Your food may spoil quickly, and you could set yourself up for some tummy troubles with bacteria such as Salmonella and E. coli.

What causes high pressure on AC system?

Once the air gets to the condenser, it will remain at its top and not condense. The subcooled liquid seal at the condenser’s bottom will prevent the air from passing out of the condenser. This air and water vapor will take up valuable condenser surface area and cause high-head pressures.

Why is my high pressure side cold?

Most likely problem is a clogged drier. If one is not used on your system the next best guess is a clogged expansion valve. I would make sure they install a new drier during the repair.