tc903-3a4dpmsa

[fahad_rafiq]

Dear all.

i am using tc903-3a4dpmsa . i want to open and close the fcu actuator with the difference of 2 degree.

i am facing a problem that my room temp is 22 in cooling mode and my actuator is fully open when i give the setpoint 12. i want to open the actuator valve with the 2 degree difference kindly guide how to set it thanks

[CraigEl · Accepted solution]

This can be set via modbus register 38 (Cooling mode KP), by default it is set to 10, change it to 20. If you are not using modbus then you will need to contact your local Schneider Electric technical support to get instructions on how to access and alter this hidden parameter via the thermostat.