Liebert TM-10098 iCOM Controls Training and Service Manual, Input: An incoming information signal

iCOM Controls Training and Service Manual

Impedance: Opposition that a circuit offers to the flow of current through it, measured in Ohms

Input: An incoming information signal

Isolation: Separation of one device or environment from the effects of an adjacent or connected device or environment

Lead Compressor: Compressor coming on first as a result of a call for Cooling 1

Lag Compressor: Compressor coming on second as a result of a call for Cooling 2

LED: Light Emitting Diode; a semiconductor that emits light when electric current is passed through it by way of two terminals

Manual Override: A means of bypassing triac switches at all levels for manual operation of system components for test or emergency

Memory: In a digital system, the part of the system where information is stored

Microprocessor: An Integrated Circuit (IC, or set of a few ICs) that can be programmed with stored instructions to perform a wide variety of functions (A microprocessor consists of at least a controller, some registers and some sort of Arithmetic Logic Unit (ALU).

N-Type Semiconductor: Semiconductor crystal doped to have an excess of free electrons with a predominately negative current carrying capacity (also referred to as a P-Type Semiconductor).

Off Time: The time since humidification was last on

Output: An outgoing information signal

P-N-Junction:Interface boundary between two semiconductor regions with differing electrical properties (Current only flows across the junction in the forward direction if circuit voltage exceeds a certain threshold. Current cannot flow across the junction in the reverse direction.)

P-Type Semiconductor: Semiconductor crystal doped for an excess of holes to enable heavier positive current-carrying capacity (also referred to as an N-Type Semiconductor).

PCB: Printed Circuit Board; made of insulating material with conducting paths secured to one or both sides

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