though the CK-63 is the dedicated choice for pure 120V oil systems

engineered to handle an exact steam relief capacity of 2583 PPH at a factory-set pressure of 150 PSI

whereas the legacy -931 utilized sweat stub-outs

5A resistive at 460VAC

Greenheck 304287 Motor 319825-402 though the CK-63 is theThe Greenheck 304287 Motor is a high performance direct drive replacement motor specifically engineered for commercial and industrial ventilation systems. This 1 6 HP HVAC motor operates at 1725 RPM, delivering the consistent torque required for centrifugal roof fans and air handling equipment. Built on a standard 48Z frame with a resilient base, it facilitates a secure, low vibration fit in existing Greenheck fan assemblies. Operating on a single