a spring-return model or an electronic fail-safe (EFS) equivalent should be selected

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

ensuring the system remains in full compliance with local plumbing codes and safety regulations

This 180F M/R Limit Switch is a manual reset safety device engineered to break the electrical circuit if internal plenum temperatures exceed 180

or debris clogging the internal screen

Johnson Controls M9000-532 Linkage 30067439-890 a spring-return model or anThe 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