Tag
duct
October 17, 2026 · 5 min read
Duct Detector Test SwitchWhat a duct detector test switch actually does, how to use it on a functional test, and what to confirm before you sign off the fan shutdown.
October 5, 2026 · 5 min read
Duct Detector Wiring DiagramHow a duct detector is wired in generic terms: initiating loop, power, fan shutdown relay and remote test station, plus a voltage drop table for the 24V run.