Electrical terminology in the breaker box

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I'm trying to understand how the breaker box is wired so I can turn off power in some part of my house. In my country (Spain), lights are on a separate circuit(s), and usually entire rooms are controlled by separate breakers. But here I'm puzzled by the nomenclature. I'm attaching an image of the labels so you can help me understand the meaning of them.

  1. Liv / Kit LTS: Is liv "living room"? What's LTS?
  2. FAU: I know this from another question that it's the air blower in our unit.
  3. Kit |O|: no idea.
  4. Comp: no idea.Unknown labels in my breaker box

Best Answer

Answering your questions in turn:

  1. Liv/Kit LTS. indeed means "Living Room/Kitchen Lights"
  2. FAU could be a small on-demand water heater (FAUcet according to Harper) or it could be a Forced Air Unit (air handler) as you are thinking
  3. The circle with two lines through it is the de facto North American standard electrical plan symbol for a duplex receptacle, so that line is short for "Kitchen Receptacles"
  4. Comp. most likely is short for a trash compactor if you have one.
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