A feedback control system in which the control signal is a discontinuous function of the sensed error and may therefore assume one of a limited number of discrete values.
Related Terms |
ADJUSTABLE DIFFERENTIAL
A means of changing the difference between the control cut-in and cut-out points.
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SAFETY CONTROL
Device to stop unit, equipment or system if unsafe pressure and/or temperatures and/or dangerous conditions are reached.
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AGGLOMERATION
The potential of the system for particle attraction and adhesion.
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REMOTE REFRIGERATING SYSTEM
Refrigerating system in which condensing unit is away from space to be cooled.
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ACTION
Refers to the action of a controller. It defines what is done to regulate the final control element to effect control.
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SHED MODE
A method of demand control that reduces kW demand through shedding and restoring loads.
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REFRIGERATING CAPACITY
The ability of a system to remove heat as compared with the cooling effect produced by melting of ice.
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ADIABATIC PROCESS
A thermo-dynamic process in which no heat is extracted from or added to the system of the process.
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RUNNING TIME
Amount of time an unit, equipment or system is run per hour or per 24 hours.
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ACID CONDITION IN SYSTEM
Condition in which refrigerant or oil in a system, is mixed with vapor and fluids that are acidic in nature.
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