Air temperature failure/fault
Actuator alarm is reported
Terminal ACT-FB is configured
but no available feedback
signal (under-range or over-
range)
If different faulty events occur at the same time, sensor/DAC LED lights up following the
priority below: Red (Fast Blinking) -> Red (On, Steady) -> Red (Blinking) -> Yellow -> Off ->
Green. For example, if there is a humidity sensor error and air temperature failure at the
same time, the sensor LED turns red rather than yellow.
After the Economizer controller enters the running state, it may take one minute for
peripheral devices to complete initialization. Before that, LED indication might be unstable.
POL224.00 Title24 Economizer Controller
POL224.05 Title24 Econ Cont, no housing
Order and Delivery
When ordering, provide both name and type reference, e.g. Economizer Controller,
POL224.00.
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