Ac Disconnect Electrical Code

National electrical code introduction the nec is updated on a 3 year cycle and receives several public inputs and public comments for the consideration in the approval of a 2 3 majority by the code making panel of a change to the appropriate article.

Ac disconnect electrical code.

What is the code for wiring the ac compressor disconnect. The disconnect will be marked as on or off depending on which way it is inserted into the disconnect box. The national electrical code defines a wet location as an area that is subject to saturation with water or other liquids and unprotected locations exposed to the weather. The manual controls on the room air conditioner are readily accessible and within 6 ft of the floor or.

The national electrical code which has been adopted by all 50 states sets the minimum standard for safe electrical design installation and inspection to keep people and property protected from electrical hazards. For a 120vac unit. Height of the disconnect box and is the lead to the compressor from disconnect supposed to be armored. This cycle had 3 730 public inputs that were considered by the 18 code making panels.

On a 220vac unit or less than 10 ft. When it is upside down in the off position the two plates will go into empty slots that do not allow the electricity to flow through the box. Until the air conditioner is operational it is best to insert it in the off position. Surge protection is required for dwelling units ground fault protection outdoor emergency disconnects for dwelling units.

The national electric code has another definition for damp locations that is more subjective but if you think the receptacle is going to get wet use an in use. The disconnect is a non fuse puller type and is ul listed with an enclosed pull out switch. There are some specific categories in the nec that are applied to hvac and making calculations for circuits and wire sizing for hvac appliances. Find electrical disconnects at lowe s today.

The national electrical code and heating ventilation and air conditioning have some shared roles for both electricians and hvac installers and technicians. An attachment plug and receptacle or cord connector can serve as the disconnecting means for a room air conditioner provided click here to see fig. For a room air conditioner such as a window unit an electrical cord plug that can be simply un plugged from the electrical receptacle counts as an acceptable disconnect provided the cord is shorter than 6 ft. Aside from the specific categories and chapters in the nec are directly applicable to hvac.