{"schemaVersion":1,"slug":"greenheck-qei-upblast-fans","name":"Greenheck QEI Upblast roof fan","kind":"object","abbreviation":"QEI-UPBLAST","aliases":["QEI-UPBLAST","QEI-UPBLAST GA","QEI-UPBLAST general arrangement"],"category":"equipment-layouts","drawingTypes":["GA"],"referenceFamilies":["Manufacturer"],"summary":"Belt-driven mixed-flow roof fan in an upblast exhaust arrangement.","description":["Place the roof curb and fan discharge on the roof layout. Retain room for access to the drive and for maintenance of the damper and discharge assembly.","The downloadable GA illustration is independently authored conceptual geometry, with no scale or manufacturer dimensions. Use the official CAD source for the exact layout."],"readingNotes":["QEI Upblast has its own geometry; the inline QEI envelope does not include the complete roof-mounted assembly.","A shared QEI family name does not make an inline fan interchangeable with the upblast configuration."],"drawingChecklist":["Select the upblast size and arrangement.","Coordinate curb connections and discharge clearances.","Reserve belt and motor service access."],"distinction":"A shared QEI family name does not make an inline fan interchangeable with the upblast configuration.","facts":[{"label":"Manufacturer","value":"Greenheck"},{"label":"Model / housing family","value":"QEI-UPBLAST"},{"label":"CAD selection","value":"QEI-UPBLAST"},{"label":"Illustration","value":"Original conceptual GA; unitless, not a manufacturer outline"}],"references":[{"sourceId":"ga-expansion-greenheck-qei-upblast-fans","relevance":"Manufacturer identity and available drawing route; exact file identity is recorded in the linked CAD entry."}],"related":["ga-industrial-ventilation-fan","ga-ventilation-intake-louver"],"artwork":"edu-object-greenheck-qei-upblast-fans","publishedOn":"2026-10-29","updatedOn":"2026-10-29","provenance":"independent-public-research","plainEnglish":{"title":"What it does","introduction":"A fan moves air. In an electrical installation it can supply cooler air, exhaust warm air or support another planned ventilation duty.","example":"In a switchroom, an exhaust fan can remove warm air produced by switchgear and other equipment.","drawings":"Use the selected manufacturer's drawings to check the equipment's size, mounting points and cable connections. The layout helps you plan where it fits and how it can be reached for maintenance. An illustrative 3D preview does not establish product dimensions or required clearances.","terms":[{"name":"Schematic","meaning":"A drawing showing function and connections rather than physical appearance."}],"diagram":"flow","steps":["Electrical supply","Fan moves air","Ventilation airflow"],"caption":"A simplified explanation of how this item works. It does not show terminal wiring or an operating procedure.","sources":[{"label":"Greenheck QEI Upblast roof fan official drawing source","url":"https://www.greenheck.com/products/fans/roof/qei-upblast"}],"profileId":"fan"},"url":"https://eloragrid.ai/objects/greenheck-qei-upblast-fans","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/equipment-preview/greenheck-qei-upblast-fans","scope":"Equipment preview: manufacturer drawing where available, otherwise a 3D thumbnail. Original object icon exports are removed."},"drawings":[],"sources":[{"id":"ga-expansion-greenheck-qei-upblast-fans","title":"Greenheck QEI Upblast roof fan official drawing source","publisher":"Greenheck","url":"https://www.greenheck.com/products/fans/roof/qei-upblast","type":"manufacturer","scope":"Model identity and mechanical CAD selection. No reproduction of manufacturer graphics.","checkedOn":"2026-10-29","reuse":"link-only","relevance":"Manufacturer identity and available drawing route; exact file identity is recorded in the linked CAD entry."}]}