temperature-terminated control prevents excessive ice buildup on the outdoor evaporator coil

or debris clogging the internal screen

you should verify if the 8145 series is required for your specific wiring schematic

it delivers a 140

38" WC safety margin

Johnson Controls M9000-532 Linkage 30067439-890 temperature-terminated control prevents excessive iceThe Johnson Controls M9000 532 is a heavy duty linkage kit engineered for mounting tandem electric actuators onto flanged iron globe valves. Designed for high torque applications, this linkage facilitates the installation of M9116, M9124, and M9220 non spring return actuators or M9220 spring return models. Specifically, it supports 3 inch valves when utilizing tandem M9116, M9124, or M9220 units, and 4 inch valves with tandem M9124 or M9220