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Replace Existing Sub-Zero Classic (BI) Dispenser Model with New Classic (BI) Dispenser Model


  • Are the panels, opening size, electrical requirements, and water location the same for existing and new Classic (BI) dispenser models?
  • Will panels transfer from an old unit to a new unit?
  • BI-42SD, BI-48SD compatibility
  • Can panels be reused on a new unit?
  • Replace a dispenser model prior to serial number 4520000 with a dispenser model starting with serial number 4520000



Opening Size

Electrical Requirements

Water Requirements

No change.

No change.

No change.


  • The panels from existing SD models will fit new SD models.
  • The footprint of the dispenser changed, and the appearance of the panel around the dispenser may not look like the rest of the custom panel.
  • Some ghosting may be visible on the panel.
  • If a thicker panel was routed to work with the old dispenser, the new dispenser will work. However, it may not be the same flush look.
  • Old dispenser has a curved front surface. The new dispenser is flat.
  • New custom panels may be needed depending on cutout and possible ghosting.
  • See also, Install New Classic (BI) Dispenser on Existing Dispenser Model.

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


Need further assistance? Contact Customer Care at 800.222.7820 or provide your information below and request a Customer Care representative contact you.

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