Never apply voltage to both sets of coil leads simultaneously

the White-Rodgers 1F56N-444 Thermostat is the industry standard for 24V 1H/1C systems

Replacing a failed switch with this genuine Marley component maintains the factory-specified safety parameters and ensures compatibility with units such as the UH520

certifying it as lead-free and safe for above-ground potable water supply systems

Is the probe length suitable for small residential ductwork

Rheem-Ruud 46-42515-05 Transformer Els PW 17895 Never apply voltage to bothThe Rheem Ruud 46 42515 05 is a professional grade 100VA control transformer engineered for heavy duty commercial and industrial HVACR applications. Specifically designed to handle high voltage inputs, this unit features a dual tap primary accommodating 460V or 575V, stepping it down to a stable 24V (or 25V nominal) secondary output. This 100VA capacity provides ample overhead for complex control circuits, solenoid valves, and relays in high