AircraftTroubleshooting Gulfstream heat tapes and cuffs September 27, 2023 Todd's Time Pn ya117. White is overtemp. White closest to pipe The other swich is the freeze temp sw, black Black one elsen wa 117 116c. Freeze sensor 79326/HC045 IS 1.375 inch all the way through. 79326/HC043 is 1 inch 79326/HC042 IS .876 is 7/8