What would be a sign of overcharging in a system with a high side float?

In a system with a high side float, a sign of overcharging would be observed as bubbles in the sight glass. When a refrigeration or air conditioning system is overcharged, the refrigerant level in the system rises excessively, causing the liquid refrigerant to enter the sight glass. This results in the formation of bubbles, indicating that the system is not properly cycling the refrigerant and may not be functioning efficiently.

Signs such as frost on the suction line can indicate issues related to other factors, such as low refrigerant levels or problems with airflow, rather than specifically pointing to overcharging. High discharge pressure could suggest overcharging, but it may also relate to other system issues, including blockages or improper component operation. Low suction pressure is typically indicative of undercharging or a restriction in the system rather than overcharging.

Recognizing the correct signs of overcharging, like the presence of bubbles in the sight glass, is crucial for ensuring the efficient operation of refrigeration systems and avoiding potential damage.