Heatcraft Refrigeration 28910104 Control Board 320720-756 Low Power Consumption: Efficient 1

Low Power Consumption: Efficient 1 VA power draw minimizes the electrical load on control circuits and monitoring systems

and pilot lines requiring ANSI Z21

For applications requiring a fail-safe open or closed state

and supporting the stable mounting of internal components such as the blower or heat exchanger interfaces

Diagnostic LED Logic: Provides immediate visual feedback on flame status and system lockout codes to minimize downtime

Heatcraft Refrigeration 28910104 Control Board 320720-756 Low Power Consumption: Efficient 1The Heatcraft Refrigeration 28910104 Control Board is a critical replacement component designed for Quick Response Controller (QRC) systems. This QRC Ctrl Board features V4. 4 Firmware, offering enhanced logic for demand defrost cycles and precise evaporator fan management. Engineered for high stakes commercial refrigeration maintenance, this board optimizes system efficiency by monitoring ambient and coil temperatures to prevent unnecessary energy