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12. Push the tube into the fitting until it is properly seated. The tube will go
approximately ¾ inch (19 mm) into the fitting when properly seated.
13. Tighten the 90 degree fitting compression nut hand-tight and then, using a 7/16-
inch wrench, tighten it at least ¾ turn more.
14. Close the service valve in the cabinet and then slowly open the shutoff valve on
the service valve. Test all fittings for leakage. Tighten the tube nut slightly if
needed.