An HVAC refrigeration circuit comprising: at least one condenser coil comprising a plurality of tubes configured to circulate refrigerant, and comprising one or more stages (215, 225, 235) coupled to one or more compressors (210, 220, 230), wherein the at least one condenser coil is fluidly coupled to other components of the HVAC circuit; at least one temperature sensor; at least one fan configured to provide airflow across the plurality of tubes; and a controller configured to control the speed of the at least one fan and to receive temperature measurements from the at least one temperature sensor, the controller further configured to associate a measured temperature with a predetermined fan speed and to direct the at least one fan to spin at a rate greater than or equal to the predetermined fan speed when the measured temperature is less than a predetermined temperature and to maintain the speed of the at least one fan at greater than zero rpm at all times during operation of the HVAC refrigeration circuit, wherein the condenser coil comprises first, second and third stages (215, 225, 235), wherein each stage is coupled to a respective compressor (210, 220, 230), the circuit further comprising at least one pressure sensor coupled to a liquid line of the condenser coil, the controller configured to receive pressure measurements from the at least one pressure sensor, and to control the activity of the first, second, and third stages (215, 225, 235) and the respective compressors (210, 220, 230), the controller further configured, when a measured temperature is below a predetermined temperature, to associate the measured temperature with a fan speed to maintain pressure in the liquid line within a predetermined range, and the controller configured to adjust the at least one fan to the fan speed. at least one condenser coil comprising a plurality of tubes configured to circulate refrigerant, and comprising one or more stages (215, 225, 235) coupled to one or more compressors (210, 220, 230), wherein the at least one condenser coil is fluidly coupled to other components of the HVAC circuit; at least one temperature sensor; at least one fan configured to provide airflow across the plurality of tubes; and a controller configured to control the speed of the at least one fan and to receive temperature measurements from the at least one temperature sensor, the controller further configured to associate a measured temperature with a predetermined fan speed and to direct the at least one fan to spin at a rate greater than or equal to the predetermined fan speed when the measured temperature is less than a predetermined temperature and to maintain the speed of the at least one fan at greater than zero rpm at all times during operation of the HVAC refrigeration circuit, wherein the condenser coil comprises first, second and third stages (215, 225, 235), wherein each stage is coupled to a respective compressor (210, 220, 230), the circuit further comprising at least one pressure sensor coupled to a liquid line of the condenser coil, the controller configured to receive pressure measurements from the at least one pressure sensor, and to control the activity of the first, second, and third stages (215, 225, 235) and the respective compressors (210, 220, 230), the controller further configured, when a measured temperature is below a predetermined temperature, to associate the measured temperature with a fan speed to maintain pressure in the liquid line within a predetermined range, and the controller configured to adjust the at least one fan to the fan speed.