Which of the following is not a method of condenser capacity control?

The method of cycling the compressor on and off is primarily associated with controlling the cooling capacity of the evaporator or the overall cooling system rather than the condenser specifically. In condenser capacity control, the emphasis is on managing how effectively heat is rejected from the refrigerant to the environment.

Using variable fan speeds allows for better control over the airflow across the condenser coils, enhancing heat exchange efficiency and optimizing capacity according to changing conditions. Condenser flooding involves allowing a portion of the condenser coil to be flooded with liquid refrigerant, which helps enhance the surface area for heat exchange, thereby increasing capacity. Bypass lines are used to divert some flow away from the condenser, which can modulate the amount of refrigerant passing through it, effectively managing how much heat is rejected.

In contrast, cycling the compressor on and off is a broader control method affecting the entire refrigeration cycle and does not specifically modify the way capacity is controlled at the condenser level. This distinction makes cycling the compressor less relevant to condenser capacity control.