Refrigerant Circuit O-Rings

Refrigerant Circuit O-rings

• 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 the work under clean conditions (even the smallest deposit such as a hair may cause a leak).

• Install only O-rings that are resistant to refrigerant R134a and corresponding refrigerant oil. The O-rings are color-coded to avoid mistakes (currently red, light purple and dark purple). Refer to Electronic Parts Catalog (ETKA).

• The Oring dimensions - a - and - b - are different depending on installation location. Refer to the Electronic Parts Catalog.






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