What unit is commonly used to measure pressure in the context of refrigeration?

The unit most commonly used to measure pressure in refrigeration contexts is psi, which stands for pounds per square inch. This unit is widely adopted in the refrigeration and HVAC industries because it provides a practical representation of pressure measurements relevant to the equipment used. For example, when working with refrigerants under varying pressure conditions, technicians often refer to psi gauges that display the operating pressures of the system.

While other units such as Pascals, bars, and lb/in² can also be used to convey pressure, psi is prevalent in scenarios involving refrigerants and equipment specifications. The familiarity and ease of use of psi make it the preferred choice for many professionals in the field.