What is the pressure on the high pressure side of a mechanical refrigeration unit called?

What is the pressure on the high pressure side of a mechanical refrigeration unit called?

• A. Suction pressure
• B. Discharge or head pressure
• C. Condenser pressure
• D. Ambient pressure

Answer: (B)

In a vapor-compression refrigeration system, the pressure on the high side is the pressure after the compressor and before the refrigerant enters the condenser. This is called discharge pressure, also known as head pressure, because it’s the pressure the compressor adds to push the refrigerant through the condenser. Suction pressure is the low-side pressure on the evaporator, ambient pressure is the surrounding atmospheric pressure, and while condenser pressure is related to the high side, the conventional term for the pressure leaving the compressor is discharge (head) pressure.

In a vapor-compression refrigeration system, the pressure on the high side is the pressure after the compressor and before the refrigerant enters the condenser. This is called discharge pressure, also known as head pressure, because it’s the pressure the compressor adds to push the refrigerant through the condenser. Suction pressure is the low-side pressure on the evaporator, ambient pressure is the surrounding atmospheric pressure, and while condenser pressure is related to the high side, the conventional term for the pressure leaving the compressor is discharge (head) pressure.