McDonnell & Miller 343200 Bellows Assembly Refrigerant System Protection: Acts as a

System Protection: Acts as a vital safety protocol to prevent blower operation during low-temperature states

this motor is the designated successor for the original 9F10247 found in PA30

making it a standard for contractors requiring precise thermal expansion control and system safety

Superior Low-Fire Support: Maintains reliable regulation across a flow range of 20 to 200 CFH

promoting laminar flow and improving overall HVAC system efficiency

McDonnell & Miller 343200 Bellows Assembly Refrigerant System Protection: Acts as aThe McDonnell & Miller 343200 Bellows Assembly (Model SA63 5) is the critical mechanical linkage used in Series 63 low water cut offs. As a veteran grade replacement component, this assembly mediates the movement between the internal float and the electrical switch, ensuring the heavy duty performance required for commercial and industrial steam boiler safety. This genuine OEM replacement part includes the bellows, the CO 106 cam assembly, and the CO