The provisions for room air conditioners are referenced in ________.

• A. NEC Article 500, Part IX
• B. NEC Article 420, Part III
• C. NEC Article 310, Part II
• D. NEC Article 440, Part VII

Answer: (D)

Room air conditioners are addressed under the NEC’s section that covers air-conditioning and refrigerating equipment, with the specific rules for room units located in Part VII. This part concentrates on room air conditioners, laying out how they should be wired, protected, and installed, including requirements for disconnecting means, overcurrent protection, and proper receptacle or wiring methods for typical room units. The NEC organizes these provisions to match the equipment type, so room air conditioners have dedicated guidance rather than being lumped into broader motor or conductor sections. The other sections listed deal with hazardous locations, general conductor sizing, or general motor-related rules, none of which specifically cover room air conditioners.