The Series P215PR/RM direct-mount and remotemount pressure-actuated condenser fan speed controllers are designed for speed variation of singlephase motors. Head pressure control of a refrigeration system, through speed variation of the fan on an air-cooled condenser, results in optimum performance throughout the year. Once the output drops below 30%, the fan is cut off. The Series P215PR/RM controllers are designed for noncorrosive refrigerant systems. See Table 1 for a list of features and benefits.