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The 311749-00605 is the standard cup diaphragm for regular temperature applications
This HVAC safety valve utilizes a large orifice design for rapid pressure relief during overpressure events
mechanical joints in refrigerant lines
7 LRA under 115VAC/60Hz single-phase power
This factory-authorized OEM replacement part is engineered for high-precision monitoring of flue gas and combustion air pressure
Carrier 17122000002495 Control Board 318973-401 The 311749-00605 is the standardThe Carrier 17122000002495 Control Board is a critical OEM replacement main circuit board designed for precise regulation of logic functions in specific Carrier, Bryant, and Payne HVAC systems. As a foundational component for system communication, this Carrier furnace control board manages the ignition sequence, blower motor timing, and safety circuit monitoring. Technical failure in the original board often manifests as intermittent limit switch
