Marvair K/40055 Control 321142-301 Versatile Compatibility: Supports positive

Versatile Compatibility: Supports positive

000 BTU/hr to handle high-demand commercial hydronic heating systems

This valve achieves ANSI Leakage Class IV standards

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

Key Benefits for Technicians: Direct OEM Compatibility: Replaces legacy part number 2940-3251 with exact mounting footprints and terminal locations

Marvair K/40055 Control 321142-301 Versatile Compatibility: Supports positiveThe 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