Which statement about automatic expansion valves is false?

The statement regarding the use of the automatic expansion valve with multiple cooling coils connected to the same compressor is not accurate. Automatic expansion valves are typically designed for use with a single evaporator coil in control applications where a specific pressure needs to be maintained. Their primary purpose is to control the flow of refrigerant to maintain a consistent pressure in the evaporator, ensuring that the system operates efficiently and preventing issues such as flooding or starvation of the evaporator.

In contrast, options discussing the pressure maintenance, operational independence, and efficiency enhancements accurately reflect the true nature and capabilities of automatic expansion valves. They provide crucial functions that help in regulating refrigerant flow automatically based on the pressure in the system, ensuring consistent performance without needing active external control systems. Thus, the claim that the valve can be effectively utilized with multiple cooling coils is misleading and supports the identification of that statement as false.