Carrier HT680054 Transformer this is a standard replacement

this is a standard replacement power element for both HF (fixed) and HFK (take-apart) series valves

this specific orifice is color-coded red and sized exclusively for liquid propane (LP) gas

Designed as the direct successor to legacy part numbers PLT1150 and 100165859

Installing a switch with an incorrect pressure rating can lead to systemic ignition failure or unsafe operating conditions

Common causes include voltage spikes

Carrier HT680054 Transformer this is a standard replacementThe Carrier HT680054 Transformer is an essential OEM component designed for high reliability voltage step down in residential and light commercial HVAC systems. This 40VA control transformer efficiently converts a 120V primary voltage to a stable 24V secondary output, providing the necessary Class 2 power for integrated furnace control boards, 24V contactor coils, and electronic thermostats. Built to meet rigorous factory specifications, the HT680054