The temperature control value source has to be specified with the DIP switches 5 and 6. By default, the sensor’s type, served by the controller’s inputs S1 and S3, is the 10K3A1 NTC.
The temperature sensor type can be changed using the iSMA Tool software.
FCU connectors
Temperature Source: iSMA-B-LP/Touch Point/FP Room Panel
The LP/Touch Point room panel set as a temperature source
Temperature Source Connected to S3
Temperature sensor connected to S3 as a temperature control value source
Temperature Source Connected to S1
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Returning air temperature sensor connected to S1
Temperature Source Connected to RS485 Network
Temperature control value source set to the RS485 network
For more information, check the iSMA-B-FCU Application manual and iSMA-B-FCU Hardware manual.