If the primary side has line voltage but the secondary side is 0V

When your HVAC blower wheel replacement requires original factory specifications to meet efficiency ratings

How do I handle the 1/4" NPT connection

supporting any 120 VAC burner application under 400K BTU

this Apollo 19 series valve meets strict National Board capacity certifications

York 025-35780-003 Sensor 319852-301 If the primary side hasThe York 025 35780 003 Sensor is a high precision 17ft averaging sensor engineered for industrial HVAC applications requiring exact temperature feedback across a wide area. As a crucial component in stratified air management, this York OEM replacement part utilizes a resistive temperature device (RTD) or multi point thermistor assembly to calculate a mean temperature value, preventing the short cycling and control errors common with single point