Johnson Controls V46AT-1 Regulating Valve Refrigerant a failed 24V relay coil

a failed 24V relay coil or open contacts in the 56L68 are common culprits

this direct-acting/hanging diaphragm valve can operate at 0 PSI

Note that this 5-button manual switch is often a non-returnable item due to its specific electrical application

Key Benefits Extensive Cross-Compatibility: This board replaces a wide range of legacy part numbers including 624591-A

Thermal Stratification Mitigation: The 24-foot sensing length eliminates "hot spots" by averaging the temperature across the entire duct cross-section

Johnson Controls V46AT-1 Regulating Valve Refrigerant a failed 24V relay coilManage head pressure with precision using the Johnson Controls V46AT 1, an industry standard water regulating valve engineered for commercial refrigeration systems. This direct acting pressure actuated valve is specifically designed for water cooled condensers using non corrosive refrigerants. Featuring a 2 1 2" ASME four hole flange and a cast iron body, the V46AT 1 provides reliable modulation of water or glycol flow to maintain optimal head