Patent ID: 8925176
Filing Date: 2015-01-06
Classification: F16L,F24F,F25B,Y10T

Abstract:
1. A method of connecting a refrigerant pipe with an assembling jig of an air conditioner having an indoor unit and an outdoor unit, the method comprising: preparing the assembling jig and locating a grip-ring, a washer, at least one O-ring on an outside portion of the assembling jig, the grip-ring configured to prevent the refrigerant pipe from being separated, the washer configured to prevent the O-ring from being damaged, the at least one O-ring configured to prevent refrigerant from leaking; inserting the assembling jig into a refrigerant pipe connection part of the outdoor unit; coupling a coupling nut to an outer circumferential surface of the refrigerant pipe connection part in a loosely fastening state of the coupling nut; separating the assembling jig from the refrigerant pipe connection part via a hole formed through the coupling nut when the coupling nut is in the loosely fastened state; inserting the refrigerant pipe into the refrigerant pipe connection part by passing through through-holes, which are respectively formed in centers of the grip-ring, the washer, and the O-ring; and fastening the coupling nut to at least a predetermined torque such that the coupling nut presses the O-ring inward to the refrigerant pipe connection part.