NABCO Entrances
NABCO GT-series automatic door operator control
Primary identifier: NABCO GT-series operator control · Status: active
Field-oriented identification page for NABCO GT-series automatic door operator controls — what to photograph, what gets mislisted, and how buyers should verify before purchase.
Identity
- Aliases
- NABCO GT control board (common_name)
- NABCO Entrances GT operator control (oem)
- Gyro Tech / related heritage naming in older discussions (common_name) — Historical naming in the trade can confuse searchers; verify current OEM labeling on the unit rather than treating Gyro Tech as a standalone catalog page.
- R248901 (mistaken) — DCUSA 2016 Gyro-Tech 1175 “PROCESSOR CONTROL.” Heritage Gyro-Tech line — not proof the unit is a GT-series control. Compare plates.
- R248901-30 (mistaken) — DCUSA 2016 U30 processor control. Separate Gyro-Tech generation from GT-series branding.
- R413800 (mistaken) — DCUSA 2016 Gyro-Tech 1100 “P.O.P.C. SLIDER CONTROL BOX.” Older slider control box identity — not a GT drop-in.
- R218735 (mistaken) — DCUSA 2016 Gyro-Tech Gemini “CONTROL BOARD” (swing 700/710). Wrong family if you need GT-series.
- Revision notes
- GT-series covers multiple operator configurations. Control revisions and option content differ. 2016 aftermarket catalogs list Gyro-Tech 1100 / 1175 / U30 / Gemini controls (R413800, R248901, R248901-30, R218735) under NABCO/Gyro-Tech — those are heritage IDs, not automatic GT equivalents. Do not equate all NABCO boards; require sticker and connector evidence.
- Labels & connectors to capture
- NABCO branding and GT-series or model references on plates/stickers
- PCB silkscreen / revision marks and any Gyro-Tech heritage PNs (photograph even if you are buying GT)
- Motor and safety/activation connector sets
- Any add-on modules seated on the control assembly
- Common mistaken names
- Any NABCO PCB listed without GT or model context
- Complete operator sold as “board only” without clarifying what is included
Fitment & compatibility
Commercial automatic entrances using NABCO Entrances GT-series operator packages. Confirm the operator model plate and control labeling together.
Voltage: Per-unit labeling governs. Use official NABCO documentation for the specific control identity when available.
| Equipment / package | Status | Notes | Source / provenance |
|---|---|---|---|
| NABCO GT-series packages (matching control identity) | Compatible with caveats | Potential match only when labels/connectors align with the removed control. Other NABCO lines need their own pages/verification. | Public NABCO Entrances GT-series product identity; exact control matching remains a physical verification step. |
Condition / value guidance
Numeric sold comps are published only when researched. Empty dollar fields mean we chose honesty over filler. Asking prices on marketplaces are not sold comps.
Used — untested
Numeric range not published yet — see notes · confidence: low · as of 2026-04-01
Lot pricing depends heavily on whether GT-series identity is photographically proven. Unlabeled boards are discounted by careful buyers.
Provenance: Qualitative lot-buyer guidance; no invented dollar comps.
Used — tested
Numeric range not published yet — see notes · confidence: low · as of 2026-04-01
A short note describing the test (donor operator, bench power, functions checked) matters more than the word “tested” alone.
Provenance: Qualitative guidance pending sold-comp curation.
Sources & provenance
Claims on this page are curated field/resale intelligence. Compatibility and value rows carry provenance notes above. Public documents:
- NABCO Entrances — official site — NABCO Entrances (official public page) · type: manufacturer_page
We link official public pages only. We do not host copyrighted manuals. Last curated review: 2026-08-15.
Marketplace / supplier links
Seller guidance
Photograph
- GT-series / model plate evidence
- Control sticker and silkscreen
- All connectors and modules
- Context photo in or next to the operator when possible
Disclose
- Exact readable identifiers
- Test method or untested status
- Whether the sale is board-only vs larger assembly
Title tips
- NABCO + GT + control/board + PN/revision if known (do not title as 1100/1175/Gemini unless that is the plate)
Buyer guidance
Common mistakes
- Winning a lot from a single blurry board photo
- Confusing heritage trade names with the label on the part in hand
Revision differences
- Request uncropped label photos and connector-edge photos before paying invoices on lots
Verify before purchase
- GT-series evidence in writing or photos
- Match to your removed control
- Lot contents list (cables, covers, modules)
Related parts
Curated cross-links for identification context — not automatic compatibility claims.
Similar family
Stanley Dura-Glide–class sliding door operator control
Comparable commercial automatic-operator control role in sliding/entrance work; OEM labels and GT vs Dura-Glide package plates differ.
Similar family
record-usa STA–class sliding door operator control
Another entrance-operator control family seen in similar surplus channels; identify by NABCO GT vs Record STA branding, not board silhouette.
Guides
Curated field notes
NABCO GT-series packages are common enough that partial boards circulate in surplus lots with incomplete paperwork. The identification problem is usually missing GT-series cues and unreadable stickers, not a lack of demand. Older trade conversation may still reference Gyro Tech heritage naming; that overlap is handled here as search/alias context rather than a separate family page. This entry documents a practical checklist for lot buyers and technicians rather than inventing price bands.
Last reviewed 2026-08-15. This is not a repair procedure and not manufacturer-authorized service documentation.