The following changes in requirements to the Standard for Room Air Conditioners, UL 484, are being proposed:
1. Clarifying a requirement that will allow use of a lockout circuit to provide manual reset
2. Adding and revising requirements for polymeric materials, including materials under heaters
3. Changing the type of cheesecloth used for the Blocked outlet test
4. Revising the Abnormal Heating Tests by requiring that the temperature regulating thermostats be disabled during the test
5. Adding exceptions that allow UL 60730-1A, the Standard for Automatic Electrical Controls, and UL 60730-2-9, the Standard for Automatic Electrical Controls for Household and Similar Use; Part 2: Particular Requirements for Temperature Sensing Controls to be considered equivalent to UL 873
6. Revising Leakage Current Test by requiring that the test samples are not to be previously energized
7. Revising internal wiring requirements to be consistent with similar refrigeration and air conditioning standards and to allow the use of additional types of wiring
8. Adding requirements for secondary circuits
9. Making editorial revisions that clarify requirements, correct typographical errors, and bring the standard up to date with current industry practice
10. Correcting a paragraph reference within the standard