Stulz Split-Air CST 40 - SENSOR ADJUSTMENT - How to configure

E/0204/39/43
SENSOR ADJUSTMENT - How to configure
To adjust the sensors for temperature and humidity (if installed) sensors proceed as follows:
• Start the unit evaporator fans only (when more units are present in the same location on a
sequencing LAN, is better to start with the master unit).
• To do it press “MENU” and 6x the arrow-down. The System Maintenance headline appears.
• Press “SET” to enter the menu. The “MANUAL CONTROL” headline appears.
• Press “SET” to enter the menu.
• Press 6x the arrow-down, press “SET” and select the evaporator fan speed (100%).
• Press set again to save and quit the menu speed
• Press 1x the arrow-down and press “SET” to select, with the arrow-keys, the time under
manual control.
• Read on the display the value of temperature or humidity that you want to calibrate (Example:
Internal temperature reading on the display = 25°C)
• Measure with a reference instrument the real value (Example: Internal temperature
measured near the internal temperature sensor = 23°C)
• Calculate the offset as = ‘real’ - ‘C1010 reading’ (Example: 23°C - 25°C = -2°C)
• Use the keypad installed on unit 1.
• On the main page of the C1010 press „SET“ to choose unit 1 using arrow up/down keys,
press „SET“ again.
• Press „Menu“ to choose the menu.
• Press 2x Arrow-Up key to go to „I/O Menu“, press „SET“
• Type in the password with Arrow-up/-down keys, press „SET“ to confirm.
• Use arrow-up/-down keys to go to the following menu-point for configuration.
• Go to I02, press „SET“, default value is blinking, change value to the calculated offset with
arrow-up/-down keys (Example: -2°C), press „SET“ to confirm.
• Proceed in the same way for other sensor adjustments on this unit.
• I04= Offset for external temperature sensor (if installed)
• I05= Offset for internal humidity sensor (if installed)
• I07= Offset for external humidity sensor (if installed)
• To adjust sensors of second (third, fourth or fifth) unit, use the keypad connected to the
corresponding unit or:
• to adjust sensors of second (third, fourth or fifth) unit, use the keypad connected to the first
unit and:
• on the main page of the C1010 press „SET“ to choose unit 2 ( or3,4,5) using arrow up/down
keys, press „SET“ again. Then you configure the parameters of the selected unit via the
keypad connected on the first unit. Note: after finishing all adjustments, set the keypad back
to unit 1.
NOTE: The best results are obtained setting the offsets on the units in the same conditions.
With only internal fans running to have and air recirculation and to avoid local static DT. After the
Master offsets correction, refer to the master units values to set the others units.