allowing it to transition between partial and full-load capacity to optimize energy consumption and humidity control

making it a versatile component for your service van inventory

Engineered for two-stage heating systems

This unit features a CCWSE (Counterclockwise Shaft End) rotation

Key Benefits: Direct OEM Compatibility: Engineered specifically for Lochinvar Crest FB 4000 and FBN4000 series to ensure plug-and-play installation without harness splicing

Trane BRD4570 Control Board 320788-702 allowing it to transition betweenThe Trane BRD4570 is a high performance Tracer VV550 VAV controller designed specifically for precision air distribution and multi zone climate management. Engineered to replace legacy Tracer VV550 units, this direct replacement VAV board ensures seamless integration with Trane building automation systems using the LonTalk communication protocol. Operating on standard 24VAC power input, the Trane BRD4570 HVAC control board manages dampt actuator