This is an official OEM part for York and Johnson Controls equipment

OEM Standards: Manufactured to original equipment specifications for a exact drop-in fit

Professional testing involves checking the secondary voltage output and inspecting the ceramic for hairline cracks

Using a motor with lower torque than the original spec can lead to overheating and premature failure under load

The 25-35 mV range is specifically designed for thermoelectric safety valves that require a standard millivolt signal to remain open during operation

Functional Devices PSH300A-LVC Power Supply 320819-301 This is an official OEMFor contractors managing multi voltage sites, the Functional Devices PSH300A LVC is a specialized 300VA power supply designed to streamline 24VAC control circuit integration. This unit functions as a versatile multi voltage transformer, accepting primary inputs of 120, 240, 277, or 480 VAC, making it an essential component for building automation systems (BAS) and complex HVACR installations. The PSH300A LVC features three independent 100VA Class 2