Schneider Electric (Square D) ATV212HU22N4 VFD 321702-401 this is a pre-loaded York

this is a pre-loaded York 031-01652-001 EPROM

while this burner is standard for natural gas

Key Benefits: Universal Compatibility: Serves as a standard HVAC relay replacement for White-Rodgers 8A04-1 and Steveco 90-340

Maintenance-Free: Eliminates the requirement for grease or consistent monitoring

this spring return pneumatic actuator features an 11 square inch effective diaphragm area and a versatile 2-1/8 to 2-1/2 inch stroke length

Schneider Electric (Square D) ATV212HU22N4 VFD 321702-401 this is a pre-loaded YorkOptimized for building fluid management, the Schneider Electric Square D ATV212HU22N4 Altivar 212 VFD is a high performance variable speed drive engineered for 3HP 460V 3 phase asynchronous motors. As a technical SEO anchor in HVAC variable frequency drive solutions, this unit is purpose built for centrifugal pumps, fans, and blowers, delivering substantial energy savings by matching motor speed to load demand. It features a built in Class C2 EMC