5-21. FILTER, DRIER (cont)
(3) The filter-drier unit must be replaced each time the refrigeration system has been opened. It should be
installed just before unit is leak tested.
Remove screw (1), Iockwasher (2), washer (3), and clamp (4).
Remove filter-drier (5).
Replacement filter-driers are packaged with sealing caps on the flare fittings to prevent moisture
contamination of the desiccant filtering media. Remove these caps immediately prior to installation.
Never install a filter drier from which caps have been removed for an extended or unknown period of time,
Place filter-drier (5) in position.
Be sure that flow arrow is pointing in the proper position.
Install clamp (4) with screw (1), Iockwasher (2), and washer (3).
Leak test all newly connected joints and those in the repaired area. (See paragraph 5-8.)