How should a new split system be checked for leaks?

How should a new split system be checked for leaks?

• A. By using only water
• B. By pressurizing the system with refrigerant
• C. By applying soapy water
• D. By using an inert gas

Answer: (B)

To properly check a new split system for leaks, it is important to pressurize the system with refrigerant. This method is effective because it utilizes the refrigerant to fully pressurize the system, allowing for a complete assessment of its integrity. When the system is pressurized, any leaks will present themselves more readily due to the pressure differential. The refrigerant's properties and behavior under pressure make it easier to identify areas of loss, ensuring that the system is sealed correctly before it becomes operational. While some alternative methods, such as applying soapy water or using an inert gas, can detect leaks, they are generally not as thorough or reliable as pressurization with refrigerant. For example, soapy water might miss small leaks, and while inert gases can be used in specific settings, they are not typical for standard leak checks in HVAC applications. Thus, using refrigerant to pressurize the system is the most comprehensive and industry-standard approach for ensuring a new split system does not have any leaks.

To properly check a new split system for leaks, it is important to pressurize the system with refrigerant. This method is effective because it utilizes the refrigerant to fully pressurize the system, allowing for a complete assessment of its integrity. When the system is pressurized, any leaks will present themselves more readily due to the pressure differential. The refrigerant's properties and behavior under pressure make it easier to identify areas of loss, ensuring that the system is sealed correctly before it becomes operational.

While some alternative methods, such as applying soapy water or using an inert gas, can detect leaks, they are generally not as thorough or reliable as pressurization with refrigerant. For example, soapy water might miss small leaks, and while inert gases can be used in specific settings, they are not typical for standard leak checks in HVAC applications. Thus, using refrigerant to pressurize the system is the most comprehensive and industry-standard approach for ensuring a new split system does not have any leaks.