Nicotra Gebhardt AT 15/15 Alternative — LONGWELL AT 15-15L / 15-15LK
Looking for an alternative to Nicotra Gebhardt AT 15/15? LONGWELL's commercial centrifugal line mirrors the Nicotra naming 1:1 — AT 15-15L / 15-15LK — with identical frame designation, dimensional interchangeability, belt-drive or factory EC-upgrade, AMCA-tested aerodynamics, at 40–55% lower landed cost and 15-day delivery vs 10–14 weeks ex-works Nicotra. This is the single highest-value naming-mirror battle in the commercial AHU segment.
AT 15/15
AT 15-15L / 15-15LK
Specification Comparison
| Specification | Nicotra Gebhardt AT 15/15 | LONGWELL AT 15-15L / 15-15LK |
|---|---|---|
| Fan type | DIDW belt-drive double-inlet forward-curved | DIDW belt-drive double-inlet forward-curved |
| Impeller / frame | Ø381 mm · frame 15/15 | Ø381 mm · frame 15/15 Drop-in |
| Airflow range | up to 16,000 m³/h | up to 16,000 m³/h |
| Static pressure (max) | up to 1,000 Pa | up to 1,000 Pa |
| Power class | motor-selectable (IE3/IE4/EC) | motor-selectable (IE3/IE4/EC) |
| AMCA 210 static efficiency (peak) | 71% | 71% |
| Noise floor (Lw) | 80 dB(A) | 80 dB(A) |
| Voltage | 230 / 400 V · 380–480 V 3Φ | 230 / 400 V · 380–480 V 3Φ |
| Drive / motor | Belt-drive, IE3/IE4 motor (EC retrofit) | Belt-drive IE3/IE4 standard, factory EC option Match + EC option |
| Certifications | CE · UL · EAC · AMCA | CE · UL · cUL · TÜV · EAC · RoHS · REACH |
| Sample lead time | 4–10 weeks | 1–3 days |
| Series lead time (≤500 units) | 10–14 weeks | 15–30 days |
| Landed cost index (LONGWELL = 100) | 175–200 | 100 (baseline) |
Engineered match verified against Nicotra Gebhardt AT 15/15 in LONGWELL's cross-brand model library (record: NAMING_MIRROR — AT 15-15L mirrors Nicotra AT 15/15 1:1). AT 15-15L mirrors Nicotra AT 15/15 1:1; AT 15-15LK is the EC-drive variant.
Why Engineers Switch from AT 15/15 to AT 15-15L / 15-15LK
4–8× Faster Delivery
40–55% Lower Landed Cost
Belt or EC-Upgrade Path
Drop-In Compatibility Details
Frame & dimensional match
LONGWELL AT 15-15L / 15-15LK carries the identical frame 15/15 frame designation as Nicotra AT 15/15 — scroll dimensions, inlet cone, outlet flange, and shaft/bearing centres match 1:1, so it drops into the same AHU section, the same belt-guard, and the same pedestal without rework.
Drive & motor options
LONGWELL ships the AT 15-15L / 15-15LK belt-driven with a selectable IE3 / IE4 motor to match the existing Nicotra AT 15/15 drive train, and offers a factory EC-upgrade variant (the -K suffix) that replaces the belt with a direct EC drive for variable-volume AHU and 25–40% fan energy savings.
Performance match
The aerodynamic curve of LONGWELL AT 15-15L / 15-15LK tracks the Nicotra AT 15/15 within AMCA 210 test tolerance across the operating envelope (third-party tested). AT 15-15L mirrors Nicotra AT 15/15 1:1; AT 15-15LK is the EC-drive variant. Performance is matched at the published duty point, with LONGWELL's documented cross-brand library backing the selection.
Typical Applications
The LONGWELL AT 15-15L / 15-15LK is widely deployed across mid-large commercial AHU and institutional HVAC. Common application categories include:
- Mid-large commercial AHU
- Library / theatre HVAC
- Industrial supply air
LONGWELL AT 15-15L is the 1:1 naming mirror; AT 15-15LK adds the EC-drive variant.
FAQ
Is LONGWELL AT 15-15L / 15-15LK dimensionally interchangeable with Nicotra AT 15/15?
Does LONGWELL offer an EC-upgrade for the AT 15/15?
What's the 2026 lead-time and cost difference?
Why does LONGWELL use the same model naming as Nicotra?
Can I get the full Nicotra-to-LONGWELL commercial cross-reference?
Replace your AT 15/15 in 5 days
Send a quick request — model + quantity + delivery address. Sample unit ships in 1–3 days for field validation. Series production at 15-day lead time after PO.
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