Switch,Light Svce(200/300 Series,430,430-2,427R-2,
          500 Series, 600/600-2 Series,700/700-2/
          700-3 Series,648PRRO,BI-36U/UG/UFD,
          BI-30U/UG,BI-42UFD/ID)
   NOTE:  FOR CARBON UNITS, SEE 3060141.
 200/300  Use Starting w/Serial #M393733/P397233.
          Prior to #M393733/P397233 see 4200340.
 427R-2   Use Prior to Serial #3156578.
          Starting With #3156578 See 7015744.
430/430-2 Use Regardless of Serial Number.
500 SeriesExcept for 501R&F,550 Use Regardless of
          Serial Number.
  501R&F  See 7004257
  550     REFRIG - Use Regardless of Serial #.
          FRE - Use Starting w/#M702716/P700765
          and between #M681166 - M681565.
          Prior to Serial #M702716/P700765 except
          between #M681166 - M681565 see 7004257.
600/600-2 Use Regardless of Serial Number, Except
          For 601R and 601F
  601R    See 7004257
  601F    See 7004257
  700-2   Use Regardless of Serial in Drawers.
700-3 Ser Use Prior to Serial #3156295
          Starting With #3156595 See 7015744
BI-30U/UG Use In Freezer Only
BI-36U/UG Use In Freezer Only
BI-42UFD  Use In Freezer Only