Field glossary

EC fan

Electronically commutated fan that modulates speed smoothly, the part that lets in-row turn down and save fan energy

Used across 2 Anvilfield field guides, most in Datacenter.

Also defined as

Electronically commutated plug fan; a DC-driven, variable-speed fan that trims to a control signal
Electronically commutated plug fan; variable-speed, trims to a pressure or temperature signal

Where this shows up