Description
The Nordyne 669761R Filter Drier is a refrigerant line filtration component used to remove moisture, acids, and solid contaminants from refrigerant circulating in cooling and heat pump equipment. In HVAC systems, it is applied in bi-directional refrigeration circuits where refrigerant flow reverses, maintaining clean refrigerant conditions in both operating modes. It contains a desiccant core that absorbs moisture, such as compressors and expansion components, from contamination-related stress. Typically positioned in the liquid line of heat pump assemblies, it support stable refrigerant circulation and consistent operation across residential and commercial refrigeration and air conditioning setups.









