Refrigerant Circuit O-Ring Seals

Refrigerant Circuit O-Ring Seals

• Always use O-rings only once, replace.

• Coat O-ring seals with refrigerant oil before inserting.

• Make sure O-rings are seated properly on pipe or in groove.

• Perform work free of contamination (even the smallest deposit e.g. a hair, may lead to a leak).

• Install only O-rings that are resistant to refrigerant R134a and corresponding refrigerant oil. These O-rings are color-coded to avoid mistakes (currently "red", "light purple" and "dark purple").

• The O-ring dimensions - a - and - b - are different depending on installation location.





• In addition to the color-coded O-ring seals, use is also made at the factory of black O-ring seals for certain connections.