this HVAC defrost control manages the thermal switch signals required to shift the reversing valve and cycle the outdoor fan

and vibration for long-term reliability

it ensures optimal static pressure compensation and maintains consistent CFM across various duct configurations

Key Benefits: Precision Thermal Protection: Opens at 150°F and resets at 110°F to prevent furnace overheating

Trane VAL9074 Valve Body 318518-761 this HVAC defrost control managesThe Trane VAL09074 is a direct replacement solenoid valve body designed for precision refrigerant flow control in high capacity HVAC systems. This HVAC solenoid valve features a robust brass construction suitable for high pressure applications and is compatible with standard refrigeration valve coils. Engineered for Trane chiller maintenance and commercial air handling units, the VAL9074 ensures a tight seal to prevent refrigerant migration during the