What type of metering device would be used in a flooded evaporator system?

In a flooded evaporator system, a low-side float is the appropriate metering device because it effectively manages the refrigerant flow into the evaporator. Flooded evaporators operate with a significant amount of liquid refrigerant, and the low-side float ensures that there is always enough refrigerant present in the evaporator for efficient heat absorption.

The float mechanism responds to the liquid level in the evaporator, allowing it to open or close a path for the refrigerant to enter based on the amount of liquid present. When the level is low, the float drops, allowing more refrigerant to flow in, and when the level rises, the float rises and restricts that flow, maintaining a consistent level of refrigerant in the evaporator. This creates optimal conditions for heat exchange and maximizes the effectiveness of the cooling process.

In contrast, high-side floats or other devices would not be suitable in this specific application as they are designed for different types of systems or configurations. This makes the low-side float ideal for maintaining the liquid refrigerant necessary in a flooded evaporator system, enabling efficient performance of the refrigeration cycle.