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Replace Sub-Zero Model 680 with Classic Series Model BI-42SD or BI-42SID


  • Are the opening size and electrical requirements the same for model 680 and Classic series (BI) model BI-42SD or BI-42SID?
  • Are the water location and panels the same for model 680 and model BI-42SD or BI-42SID?
  • Do panels transfer from an old unit to a new unit?
  • Can old panels go on a new unit?
  • 680 compatibility



Opening Size

Electrical Requirements

Water RequirementsItems to Verify
  • No change.
  • No change.
  • No change.
  • Whether the original unit had a reduced height grille (to reduce overall unit height to 83") or an extended grille (to increase overall height above 84"). If so, order a new reduced height or extended height grille for the new model. See Classic Series (BI) Grille Height Options.
  • Whether the new model door clearance fits if installed near an island. See the Sub-Zero Design Guide for details.
  • Model 680 was discontinued in 2004.


  • The panels from model 680 will not fit model BI-42SD or BI-42SID.
  • Side panels are different and cannot be reused.
  • It is not possible to put the doors from a 680 on the BI-42SD or BI-42SID.

See also:

Refer to the Sub-Zero Design Guide for design specifications and the product Installation Guide for further installation information.


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