# QEI-UPBLAST belt-drive mixed-flow fan Upblast roof arrangement of the QEI mixed-flow fan. Use the dedicated upblast housing and mounting drawing when laying out switchroom ventilation; inline QEI geometry is a different arrangement. ## Equipment and file summary Equipment / resource: QEI-UPBLAST belt-drive mixed-flow fan Manufacturer: Greenheck Resource type: Product family Part number: QEI-UPBLAST Listed file formats: DWG, RFA, ZIP Listed files: 3 Available previews: Manufacturer source / drawing request Recorded revisions: Confirm the revision with the manufacturer Source checked: 2026-10-29 Download access: Use the official manufacturer source or request the exact drawing ## Related GA references - [Greenheck QEI Upblast roof fan](https://eloragrid.ai/objects/greenheck-qei-upblast-fans) - [Industrial ventilation fan](https://eloragrid.ai/objects/ga-industrial-ventilation-fan) - [Combined fire-smoke damper](https://eloragrid.ai/objects/ga-combined-fire-smoke-damper) Canonical page: https://eloragrid.ai/tools/cad-library/equipment/greenheck-qei-upblast-fans Manufacturer: Greenheck Entry type: Product family Part number: QEI-UPBLAST Category: Switchroom services Formats: DWG, RFA, ZIP Market discovery: Global Access: Direct download Official source: https://www.greenheck.com/resources/drawings/fans Manufacturer evidence: https://www.greenheck.com/resources/drawings/fans Source checked: 2026-10-29 Download the unchanged original files from the official publisher using the links below. Confirm the latest revision and selected product configuration before design use. Global source discovery; confirm local product availability, electrical configuration and approvals with the manufacturer. Confirm selected size, mounting orientation, revision and installation clearances against the manufacturer installation documents. CAD geometry is not a substitute for operating or maintenance clearances. ## In plain English ### What the equipment does A fan moves air. In an electrical installation it can supply cooler air, exhaust warm air or support another planned ventilation duty. ### A simple example In a switchroom, an exhaust fan can remove warm air produced by switchgear and other equipment. ### What the drawings help you do Use an outline or mounting drawing to plan where the equipment fits and where it attaches. Use a connection drawing to trace its electrical interfaces. A 3D model helps coordinate space; check the manufacturer's installation requirements separately. ### Terms - CAD: Computer-aided design files used to prepare drawings and models. - Revision: The recorded version of a drawing or model. Concept diagram: Electrical supply → Fan moves air → Ventilation airflow A simplified explanation of how this item works. It does not show terminal wiring or an operating procedure. - [Greenheck official source](https://www.greenheck.com/resources/drawings/fans) ## Which file should I choose? Start with QEI-UPBLAST. The files above belong to Greenheck's QEI-UPBLAST belt-drive mixed-flow fan resource; match any model or option suffix in the filename to your selected unit. Available here: DWG, ZIP. The individual filenames above distinguish the supplied variants. ## Official files - QEI-UB-3D.dwg (DWG): https://content.greenheck.com/public/DAMProd/Original/10003/QEI-UB-3D.dwg Site download: not publicly hosted Rights review: Official drawing index, public notices, both Revit archive README variants and decoded fan DWG title blocks reviewed. No explicit prohibition on hosting these public files was identified. Redistribution permission remains unconfirmed; no licence is asserted.; evidence: https://www.greenheck.com/resources/drawings/fans, https://www.greenheck.com/ Purpose: 3D CAD model; acquired: true; redistribution: unknown; SHA-256: 8f0d8b2a0ad3c104050967b22548ff6487570aa110ae588a7bdf71460199e848; revision: not recorded - QEI-UB-30-II.dwg (DWG): https://content.greenheck.com/public/DAMProd/Original/10006/QEI-UB-30-II.dwg Site download: not publicly hosted Rights review: Official drawing index, public notices, both Revit archive README variants and decoded fan DWG title blocks reviewed. No explicit prohibition on hosting these public files was identified. Redistribution permission remains unconfirmed; no licence is asserted.; evidence: https://www.greenheck.com/resources/drawings/fans, https://www.greenheck.com/ Purpose: 2D dimension drawing; acquired: true; redistribution: unknown; SHA-256: 7a7cf8deb01926005d880a02e087d6a60bd985e7ff561977cf921157ef105f81; revision: not recorded - QEI_UB_LOD200_AllSizes.zip (ZIP): https://content.greenheck.com/public/DAMProd/Original/10006/QEI_UB_LOD200_AllSizes.zip Site download: not publicly hosted Rights review: Official drawing index, public notices, both Revit archive README variants and decoded fan DWG title blocks reviewed. No explicit prohibition on hosting these public files was identified. Redistribution permission remains unconfirmed; no licence is asserted.; evidence: https://www.greenheck.com/resources/drawings/fans, https://www.greenheck.com/ Purpose: Revit family archive; acquired: true; redistribution: unknown; SHA-256: d888caca0bc790c89625d91d9acc65938c4ba576090000cba9a11cc67f4f0149; revision: not recorded - README_Revit.pdf - QEI_UB_LOD200_AllSizes.rfa - QEI_UB_LOD200_AllSizes.txt Global discovery is not proof of regional certification. Confirm exact configuration, revision, dimensional units and use rights with the manufacturer.