[. . . ] Adler/Barbour Supplemental Installation Guide For New Quick-Connect Couplings This supplemental installation guide provides information about the new Quick-Connect self-sealing couplings currently shipping with Adler/Barbour products but not yet covered in the manual Adler/Barbour Installation Guidelines For Cooling Units and Evaporators (L-2488) S5 S2 New Self-Sealing Quick-Connect Couplings CHANGE OF COUPLING TYPE Previously - The Adler/Barbour cooling unit and evaporator were connected with one-shot, all-metal, piercing-type couplings. [. . . ] During this stage, both coupling halves are still completely sealed, preventing leakage of refrigerant. When fully connected, continued tightening of the union nut (female coupling) draws the couplings together, and opens the fluid passage by forcing the male coupling's poppet assembly and the female coupling's sleeve assembly open. When fully coupled, a metal ring located in the front of the male coupling forms a leak-free metal-to-metal seal between the two coupling halves. 1 L-2963 ENGLISH Supplemental Installation Guide For New Quick-Connect Couplings INSTALLATION PROCEDURE Refer to the diagram at the top of page 1. Leaving plastic caps and plugs in place, carefully wipe off the fittings to remove dirt, dust and moisture. Drill holes in bulkhead or panel to accommodate the coupling half if necessary. Remove dust caps and plugs if used, making sure that component synthetic seals are intact. Wipe off coupling seals and threaded surfaces with a clean cloth to prevent the inclusion of dirt or any foreign material in the system. [. . . ] If a torque wrench is used, tighten to 10-12 foot pounds. Connect the upper refrigerant male to female couplings following the same procedure described above. 2 L-2963 ENGLISH [. . . ]