What Is a Filter Drier

Filter-driers are a key component in any refrigeration or air conditioning system. … A filter-drier in a refrigeration or air conditioning system has two essential functions: one, to adsorb system contaminants, such as water, which can create acids, and two, to provide physical filtration.

What does a filter dryer do?

Filter driers are usually installed in the liquid line of a dry-expansion refrigeration system, where they have a dual function. First, they trap coarse particulate contamination and copper shavings, and second, they capture any moisture present in the system.

What does a filter-drier remove?

It is important to locate a filter-drier in a refrigeration system. Its role is to remove moisture from the refrigerant and lubricant by absorbing and retaining moisture deep within the desiccant granules.