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UL - 710B CRD - UL STANDARD FOR SAFETY RECIRCULATING SYSTEMS - SECTION/PARAGRAPH REFERENCE: NEW SUPPLEMENT SA SUBJECT: INTEGRAL RECIRCULATING, DOWNDRAFT SYSTEMS - EDITION 2: SEPTEMBER 02, 2011 Organization: UL
Date: 2012-11-06
Description: In addition, the system includes a fire extinguishing system and a fire actuated damper. Recirculating systems covered by these requirements are intended for installation in accordance with: a) The Standard for Ventilation Control and Fire Protection of Commercial Cooking Operations, NFPA 96, and b) The National Electrical Code, ANSI/NFPA 70.
UL 710B OUTLINE - OUTLINE OF INVESTIGATION FOR RECIRCULATING SYSTEMS - ISSUE NO. 1 Organization: UL
Date: 2003-06-09
Description: The hood assembly generally includes a fan, collection hood, or equivalent design feature, air filtering system (consisting of a grease filter with other filters), a fire actuated damper, and a fire extinguishing system unit. An integral recirculating system of a vending machine is also covered by this supplement.
UL 710B - UL STANDARD FOR SAFETY RECIRCULATING SYSTEMS - SECOND EDITION; REPRINT WITH REVISIONS THROUGH AND INCLUDING AUGUST 14, 2014 Organization: UL
Date: 2011-09-02
Description: In addition, except as noted in the Exceptions to 37.1 and 38.1, the hood assembly includes a fire actuated damper, and a fire extinguishing system. Recirculating systems covered by these requirements are intended for installation in accordance with: a) The Standard for Ventilation Control and Fire Protection of Commercial Cooking Operations, NFPA 96; b) The National Electrical Code, ANSI/NFPA 70; and c) Other codes such as the International Mechanical Code (IMC), and the Uniform Mechanical Code (UMC).
UL 873 - UL STANDARD FOR SAFETY TEMPERATURE-INDICATING AND -REGULATING EQUIPMENT - TWELFTH EDITION; REPRINT WITH REVISIONS THROUGH AND INCLUDING FEBRUARY 6, 2015 Organization: UL
Date: 2007-11-16
Description: b) Industrial Operating Controls – Temperature controllers for industrial, farm, and boiler room applications; snow melting controls; return-duct humidistats; humidity controllers; pneumatic pressure regulators; transformer (low-voltage secondary) relays; pneumatic pressure, bimetallicheater, motor, timer, and magnetically operated sequence switches; stoker controls; indicating and recording controls; and motor operators for actuating air dampers. These requirements do not cover output connected apparatus such as dampers, linkages, or valves.
UL 268 - UL STANDARD FOR SAFETY SMOKE DETECTORS FOR FIRE ALARM SYSTEMS - SEVENTH EDITION; REPRINT WITH REVISIONS THROUGH AND INCLUDING JULY 15, 2016 Organization: UL
Date: 2016-01-11
Description: b) Detectors intended solely for control of releasing devices such as electromagnetic door holders, fire dampers or smoke dampers. c) Detectors intended for both applications described in (a) and (b) above, and d) In Canada, duct detectors.

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