Simple guidelines for EK filter driers with refrigeration plants and air conditioning

Why use filter driers?
A refrigeration plant’s trouble-free life time is increased by:
– Moisture adsorption
– Dirt filtration
– Acid adsorption

When should I use filter driers?
As closed systems were once open and will be re-opened occasionally, filter driers will be of benefit in:
– Factory-made units
– Plants serviced or erected in the field

How and where should I use filter driers?
– Change the filter drier every time the system has been opened for service
– Mount/install a correctly sized filter drier in the liquid line after the receiver but before moisture indicators