This SPST switch typically functions as a manual on/off control or a selector switch for specific subsystems within the chiller's control circuit

maintaining precise HVAC safety switch parameters across thousands of thermal cycles

Contractors rely on this heavy-duty contactor for its direct-fit compatibility and robust terminal construction

If current fasteners are corroded or missing

preventing bypass leakage in fan coil and baseboard configurations

Heil Quaker ICP 1172129 Wheel 30067439-890 This SPST switch typically functionsThe Heil Quaker ICP 1172129 is a heavy duty centrifugal blower wheel designed for precise airflow management in residential and light commercial HVAC units. Featuring a 11 inch diameter and a 10 inch width, this double inlet blower wheel utilizes a clockwise (CW) rotation and a 1 2 inch bore size to ensure a secure fit on standard motor shafts. Constructed from corrosion resistant galvanized steel, it is engineered to maintain structural integrity