Which Color wire to use

[GBS]

I know this sounds like an easy question, but based on the picture below what color wire should A & B be? I know if I'm just consistent everywhere it will work, but I want it to make sense to someone coming behind me. I'm thinking "A?" should be RED

My assumptions are:

F = + = Red
M = - = Black

 

[42OhmsPA]

I know this sounds like an easy question, but based on the picture below what color wire should A & B be? I know if I'm just consistent everywhere it will work, but I want it to make sense to someone coming behind me. I'm thinking "A?" should be RED

My assumptions are:

F = + = Red
M = - = Black

View attachment 224644

I agree with your assumptions.

 

[time2roll]

PV wire is pretty much all black. Put some red tape on the positive near the disconnect if you are inclined.