Control Board

Top view of a Control Board

Definition

The control board uses complex calculations to help your AC, furnace, or heat pump run more efficiently. Older systems had direct controls that were not as efficient, and required higher voltage. But newer systems use control boards to communicate with different components, calculate for best performance, and then directly control operation of each component.

Synonyms

Computer board, control switch, circuit board, control system

Abbreviations

PCB, CB

Related Terms

Amp Clamp

Amp Clamp

An amp clamp is an electronic device that has clamps, used to measure amperage.

Expansion Valve

Expansion Valve

Controls how much refrigerant is allowed to flow into the evaporator coil

R-12

R-12

Common type of refrigeration used in older home AC systems

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