The provisions of Part VII shall apply to electrically energized room air conditioners that control temperature and humidity.
For the purpose of Part VII, a room air conditioner (with or without provisions for heating) shall be considered as an ac appliance of the air-cooled window, console, or in-wall type that is installed in the conditioned room and that incorporates a hermetic refrigerant motor-compressor(s).
The provisions of Part VII cover equipment rated not over 250 volts, single phase, and such equipment shall be permitted to be cord-and-attachment-plug-connected.
A room air conditioner that is rated three phase or rated over 250 volts shall be directly connected to a wiring method recognized in Chapter 3, and provisions of Part VII shall not apply.
What About this new rule? Has anyone found the LCDI or AFCI in the cord yet?
440.65 Leakage Current Detection and Interruption (LCDI) and Arc Fault Circuit Interrupter (AFCI).
Single-phase cord-and-plug-connected room air conditioners shall be provided with factory-installed LCDI or AFCI protection.
The LCDI or AFCI protection shall be an integral part of the attachment plug or be located in the power supply cord within 300 mm (12 in.) of the attachment plug.
[This message has been edited by Joe Tedesco (edited 03-18-2003).]
Joe Tedesco, NEC Consultant
#104604 - 03/18/0307:24 PMRe: Loose Connection Here at Wall AC Unit
Most of these PTACS (package terminal air conditioners) are available with several "power cords" from the manufacturer. All have a nylon pin and sleeve plug on the air conditioner end that only fits that a/c and you can get all sorts of plugs on the other end. In fact, some of these units are multi-voltage and buying different cords let you run them at different voltages.
And you can order them with a whip of greenfield already attached to a box to cover the nylon a/c connector and wires already pulled. I suspect that's what this is.