The Trane RLY3790 is a heavy-duty fan relay designed for precise industrial and residential air handler control

Does this board require a specific transformer

Replacing a failed electric heating element with this Carrier 52SQ402064 unit restores the system's ability to provide auxiliary heat during low-ambient conditions

By restoring the circulator pump to original factory performance

It provides a reliable fail-safe by interrupting the burner circuit if water levels drop below the safe operating threshold

Resideo VC8714ZZ11 Actuator 326058-755 The Trane RLY3790 is aThe Resideo VC8714ZZ11 is a high performance 24VAC SPDT actuator engineered for precise control in hydronic systems. Designed as a non spring return valve actuator, this component is fully compatible with VC1000 2 way valves and VC6000 3 way valves, providing a robust 60 psi maximum close off rating. The direct coupled mounting design allows for quick installation or head replacement without the need to drain the system, minimizing downtime for field