A low-side float metering device is used on which type of evaporator?

A low-side float metering device is specifically designed for use with flooded evaporators. The primary function of this device is to maintain a constant level of refrigerant in the evaporator while preventing flooding and ensuring proper operation. In a flooded evaporator, the refrigerant is present in the evaporator in a liquid state, and the float mechanism allows the device to accurately control the flow of refrigerant into the evaporator. This environment is essential for maintaining efficiency and ensuring the system performs optimally, as it allows for maximum heat transfer without the risk of compressor damage due to liquid refrigerant entering the compressor.

Other types of evaporators, such as dry or direct evaporators, typically operate with different metering devices, like thermal expansion valves or capillary tubes, because they do not require the same level of liquid refrigerant control. Flooded evaporators, in contrast, benefit from the low-side float system's ability to adapt to changing load conditions and provide consistent performance, making it the ideal choice in this scenario.