Crown Victoria V8-4.6L Flex Fuel (2008)
Coupler HVAC: Description and Operation
Spring Lock Coupling
Spring Lock Coupling
The spring lock coupling is a refrigerant line coupling held together by a garter spring inside a circular cage.
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When the coupling is connected together, the flared end of the female fitting slips behind the garter spring inside the cage of the male fitting.
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The garter spring and cage then prevent the flared end of the female fitting from pulling out of the cage.
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The O-ring seals are green in color and are made of a special material.
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Use only the specified green O-ring seals listed in the Master Parts Catalog for the spring lock coupling.
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A plastic indicator ring is used on the spring lock couplings of the A/C evaporator core to indicate, during vehicle assembly, that the coupling is
connected. Once the coupling is connected, the indicator ring is no longer necessary but remains captive by the coupling near the cage opening.
A/C Line (Peanut) Fitting
The A/C line (peanut) fitting is an integral part of the refrigeration line or component.
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The male and female blocks of the air conditioning line (peanut) fitting are retained with a nut.
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An O-ring seal and a gasket are installed around the tube on the male block.
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The female and male blocks are welded to the tubes and are not adjustable.
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When correctly assembled, the male and female fittings should be flush with the gasket.
