{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11268721","patent":{"patent_number":"US-11268721","title":"HVAC system prognostics and diagnostics based on temperature rise or drop","assignee":null,"inventors":[],"filing_date":"2020-06-22T00:00:00.000Z","publication_date":"2022-03-08T00:00:00.000Z","cpc_codes":["G05B","G05B","G05B"],"num_claims":15,"abstract":"An HVAC system includes a heating element, a discharge air temperature sensor, and a return air temperature sensor. A controller of the HVAC system determines that the HVAC system has been operating in the heating mode for at least a predefined amount of time. The controller receives measurements of the discharge air temperature and the return air temperature. A temperature rise value is determined using the discharge air temperature and return air temperature. If the temperature rise value is less than a predefined minimum threshold value, the controller determines that a first fault of the HVAC system is detected and provides a corresponding alert. If the temperature rise value is greater than a predefined maximum threshold value, the controller determines that a second fault of the HVAC system is detected and provides a corresponding alert."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"HVAC system prognostics and diagnostics based on temperature rise or drop","description":"An HVAC system includes a heating element, a discharge air temperature sensor, and a return air temperature sensor. A controller of the HVAC system determines that the HVAC system has been operating i","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11268721","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-11268721","citation_suggestion":"Patentable. \"HVAC system prognostics and diagnostics based on temperature rise or drop\" (US-11268721). https://patentable.app/patents/US-11268721","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11268721","json":"https://patentable.app/api/llm-context/US-11268721","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T07:00:20.614Z"}