Marvair K/40055 Control 321142-301 This valve achieves ANSI Leakage

This valve achieves ANSI Leakage Class IV standards

1800 RPM for consistent airflow performance

Versatile Application: Modular bolt-on design allows for 360-degree orientation

Standardized Electrical Interface: Features SPST switching logic compatible with standard 24V or 120V control boards

Versatile Compatibility: Supports positive

Marvair K/40055 Control 321142-301 This valve achieves ANSI LeakageThe Marvair K 40055 Low Ambient Fan Cycle Control is a critical genuine OEM replacement part engineered for telecommunication and schoolroom HVAC systems. Designed specifically to maintain head pressure by regulating the condenser fan operation, this control ensures the refrigeration cycle remains stable within its design parameters during low temperature outdoor conditions. As a direct replacement for Marvair S 03998 and 70555, it eliminates the