What do the wire colors represent?
| 1 Wire | 2 Wire | 3 Wire | 4 Wire |
|---|---|---|---|
| Black – signal | Black – signal | Black – signal | Black – signal |
| Gray – ground | Gray – ground | ||
| White (x2) – heater | White (x2) – heater |
| 1 Wire | 2 Wire | 3 Wire | 4 Wire |
|---|---|---|---|
| Black – signal | Black – signal | Black – signal | Black – signal |
| Gray – ground | Gray – ground | ||
| White (x2) – heater | White (x2) – heater |