Quick answer
Sub-Zero model numbers start with a series prefix (BI built-in, CL Classic, IC integrated column, IT integrated tall, ID integrated drawers, UC undercounter, UW undercounter wine, IW integrated wine, BW built-in wine, DE Designer, PRO professional), followed by the width in inches and a configuration code (U over-and-under, UFD French door, S side-by-side, SD side-by-side with dispenser, R all-refrigerator, F/FI freezer/with ice maker, CI combination with ice maker). Suffixes like /S, /PH and /O indicate finish, handle and panel style.
Series Prefixes
| Prefix | Meaning | Example |
|---|---|---|
| BI | Built-In (Classic Series) | BI-36U |
| CL | Classic (newer naming) | CL3650U |
| IC | Integrated Column | IC-30R |
| IT | Integrated Tall (over-and-under) | IT-36CI |
| ID | Integrated Drawers | ID-30R |
| UC | Undercounter | UC-24R, UC-15I |
| UW | Undercounter Wine | UW-24 |
| IW / BW | Integrated / Built-in Wine | IW-30 |
| DEC / DET / DEU | Designer Column / Tall / Undercounter | DEC3050R |
| PRO | Professional | PRO4850 |
| 5xx / 6xx / 7xx | Legacy series | 650 |
Configuration Codes
| Code | Meaning |
|---|---|
| U | Over-and-under (bottom freezer) |
| UFD | Over-and-under French door |
| S | Side-by-side |
| SD | Side-by-side with dispenser |
| R | All-refrigerator |
| F / FI | All-freezer / freezer with ice maker |
| CI | Combination refrigerator/freezer with ice maker |
| RID | Refrigerator with internal dispenser |
| BG | Beverage center, glass door |
| I / IP | Ice maker / ice maker with pump |
| G | Glass door |
| O (in model) | Outdoor (e.g., UC-24RO) |
Common Suffixes
- /S: stainless steel
- /PH: pro handle
- /TH: tubular handle
- /O: overlay (panel-ready)
- -LH / -RH: left or right hinge
- A, B: revision
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