Danfoss 067L5858 TR6 Expansion Valve Els PW 17895 It is built to handle It is built to handle the inductive loads of circulator relays and ignition controls common in condensing water boilers like the Ultra 105 or Ultra 155 This sensor is a key component of your Bradford White water heater's Flammable Vapor Ignition Resistant (FVIR) system this TXV utilizes a balanced port design to maintain precise superheat control across varying head pressures and load conditions The 3 8" inlet and integrated internal check valve facilitate efficient heat pump operation by allowing reverse flow without the need for additional piping