The IQL12 is a terminal unit controller which can be networked using LonWorks (Lon). It can communicate with other IQLs and LonMark devices via the Lon, and with IQ system devices via a LINC unit. It has 3 relay outputs (normally to control fan speed), and 4 triac outputs (normally to control valves or dampers). It has 1 variable resistance input which is normally a thermistor
temperature sensor.
