What system configuration avoids flooding in a recirculated system?

Proper thermostat calibration is essential in avoiding flooding in a recirculated system because it ensures that the system operates within the intended temperature range, allowing for efficient and effective heat transfer. When thermostats are calibrated correctly, they can accurately regulate the flow of refrigerant or fluid based on the temperature variations in the system. This prevents excessive liquid from accumulating in the evaporator or condenser sections, which can lead to flooding.

Flooding occurs when too much refrigerant or fluid enters these components, impairing their ability to function properly, leading to inefficiencies, potential damage, or even system failure. By maintaining the correct temperature settings through proper calibration, the system can achieve the desired balance of liquid and vapor phases, preventing flooding and ensuring optimal performance.

The other choices may not directly address the specific issue of flooding. Mechanical valves set at high pressure, consistent liquid delivery, or fixed suction pressure adjustments might influence the overall efficiency or operation of the system but do not specifically prevent the undesirable accumulation of fluid that leads to flooding.