UL 484 CRD-2014 UL Standard for Safety Room Air Conditioners - Section / Paragraph Reference: Supplement SC Subject: Alternative Path for Electronic Controls (Edition 9: February 7@ 2014)
"Throughout the Supplement@ when reference is made to requirements in ""this Standard@"" the reference is to requirements in the main body of the Standard and not to other requirements of the Supplement. These requirements provide an alternative path for investigation of electronic controls used in appliances covered by this standard. In the context of this Supplement@ an electronic control is a circuit incorporating at least one electronic component and that causes the intended output of the appliance energy source(s) (e.g. heaters@ moving parts@ humidity@ radiation) to vary. In the context of this Supplement a motor speed drive would be considered an electronic control. Circuits that transmit or receive signals (analog or digital)@ transform or convert electricity to supply other circuits (e.g. power supply) or simply switch an electrical load (e.g. electronic relay) are not controls but are subject to the requirements of this Supplement when they are integrated (physically or functionally) with a control. A self-regulating PTC heater is not considered a control from the perspective of this Supplement. When a thermistor is used as a sensor or as part of a thermal management function of a control@ it is investigated as part of the control. The functional safety requirements for smart or remotely enabled are specified in Supplement SB. Thermal motor protectors in direct contact with motor windings and intended for direct control of the motor supply are outside the scope of this Supplement even if they incorporate one or more electronic components. Exception No.1: Electronic circuits that provide thermal motor protection but only have a thermal sensor in direct contact with motor windings are within the scope. Exception No. 2: Electromechanical thermal motor protectors in direct contact with the motor windings where the protector is connected to electronic circuits that provide the motor load control are within the scope. Electronic circuits that provide control functions intended to prevent special hazards such as an explosion or whose failure could directly cause a hazard in the appliance are outside the scope of this Supplement."
UL 484 CRD-2014 history
1970UL 484-2022 UL Standard for Safety Room Air Conditioners
2019UL 484 BULLETIN-2019 UL Standard for Safety Room Air Conditioners (COMMENTS DUE: April 8@ 2019)
2018UL 484 BULLETIN-2018 UL Standard for Safety Room Air Conditioners (COMMENTS DUE: June 11@ 2018)
2017UL 484 CRD-2017 UL Standard for Safety Room Air Conditioners - Section / Paragraph Reference: 23.2.2@ 23.4.1 Subject: Addition of reference to UL 61800-5-1 for motor protection (Edition 9: February 7@ 2014)
2016UL 484 BULLETIN-2016 UL Standard for Safety Room Air Conditioners (COMMENTS DUE: November 21@ 2016)
2015UL 484 BULLETIN-2015 UL Standard for Safety Room Air Conditioners (COMMENTS DUE: May 18@ 2015)
2014UL 484 CRD-2014 UL Standard for Safety Room Air Conditioners - Section / Paragraph Reference: Supplement SC Subject: Alternative Path for Electronic Controls (Edition 9: February 7@ 2014)
2014UL 484 BULLETIN-2014 UL Standard for Safety Room Air Conditioners (COMMENTS DUE: October 31@ 2014)
2014UL 484-2014 UL Standard for Safety Room Air Conditioners (Ninth Edition; Reprint with Revisions Through and Including September 6@ 2018)
2013UL 484 CRD-2013 UL Standard for Safety Room Air Conditioners - Section / Paragraph Reference: Paragraphs 10.2.2@ 79.11.1 (NEW)@ and 79.12 Subject: Cord and Plug Connected Packaged Terminal Air Conditioners without an LCDI or AFCI due to use of Subbase (Edition 8: Decembe
2013UL 484 BULLETIN-2013 UL Standard for Safety Room Air Conditioners (COMMENTS DUE: April 08@ 2013)
2012UL 484 CRD-2012 UL Standard for Safety Room Air Conditioners - Section / Paragraph Reference: Section 8@ Paragraph 8.4.15 Subject: 5 Inch End-Product Flame Test (Edition 8: December 21@ 2007)
2012UL 484 BULLETIN-2012 UL Standard for Safety Room Air Conditioners (COMMENTS DUE: December 10@ 2012)
2011UL 484 BULLETIN-2011 UL Standard for Safety Room Air Conditioners (COMMENTS DUE: November 07@ 2011)
2010UL 484 BULLETIN-2010 UL Standard for Safety Room Air Conditioners (COMMENTS DUE: December 14@ 2010)
2008UL 484 BULLETIN-2008 UL Standard for Safety Room Air Conditioners (COMMENTS DUE: August 29@ 2008)
2007UL 484 BULLETIN-2007 UL Standard for Safety Room Air Conditioners (COMMENTS DUE: July 09@ 2007)
2007UL 484-2007 UL Standard for Safety Room Air Conditioners Eighth Edition