York S1-401000 Filter Drier 320734-701 A veteran tech knows to

A veteran tech knows to use the internal test device

protecting the motor bearings and extending the service life of the fan assembly

By trimming the provided paddles to the specific pipe size and adjusting the sensitivity screw

Should I install this drier permanently or for temporary cleanup

and excellent volumetric efficiency

York S1-401000 Filter Drier 320734-701 A veteran tech knows toThe York S1 401000 is an OEM C 162 liquid line filter drier designed for high performance moisture and acid removal in residential and commercial split systems. This 16 cubic inch drier utilizes a high capacity desiccant blend to protect the expansion valve and compressor from contaminants that lead to oil breakdown and system failure. Featuring 1 4 inch SAE flare connections, the S1 401000 ensures a leak proof seal and straightforward installation