FDNY CoF Z-51 Practice Test for Temporary Certificate of Fitness Card - Exam Prep

Filter driers are essential components in refrigeration and air conditioning systems, and their primary function is to remove moisture and particles from the refrigerant. Moisture can be particularly detrimental to these systems, as it can lead to corrosion, freezing, and the formation of acids that can significantly reduce the lifespan and efficiency of the system components. Additionally, filter driers capture particles that can accumulate over time and potentially damage the compressor or other critical parts of the system.

By effectively removing both moisture and particulates, filter driers help maintain the system’s efficiency and longevity, ensuring reliable operation and preventing costly repairs or failures. This is crucial for the overall health of HVAC systems, making moisture and particle removal the primary focus of a filter drier's functionality.