FSC SINGLE P215SH-9100 - Fan Speed Controller | Pex Parts

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Johnson P215dp/sh/st Series Fan Speed Control P215sh-9100

Used for Emerson/Liebert PEC, PEX, GPEX


• Condenser pressure control by fan speed variation
• Transducers with proven reliability
• Easy accessible setpoint screw
• Adjustable minimum speed or cut-off selection
• Dual input possibility (P215DP only, by adding another P35 transducer)
• Heatpump input available (P215SH)

Pressure Actuated, Single-phase These controllers are designed for speed variation of single phase motors, especially for fan speed control on air cooled condensers. 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. Using a pressure transducer as the input device to the fan speed controller, gives the most direct and fastest response to pressure variations in the refrigerant system. The controller varies the supply voltage to the motor from 45% to at least 95% over the proportional band using the phase cutting principle. It is recommended to confirm with the electric motor manufacturer if a controller using the phase cutting principle for speed variation can be used. The controller used for dual pressure input varies the fan speed by directly sensing the pressure changes of two separate refrigerant circuits. The setpoint of each pressure transducer can be separately adjusted. The controller selects the input with the greatest cooling demand to control the fan speed. The transducers can be used in non-corrosive refrigerant systems.

See Information Manual here

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