Thermcraft XST-3-0-36-3V User Manual
Page 81
Installation and Operation Handbook
Tuning
2408 and 2404 Controller
4-9
5. Press
or
to turn ‘
PCAL’ to ‘on’.
6. Press
and the upper readout indicates ‘
Pot’.
7. Press
or
to get to ‘
Pot-3A.Hi’. (Assuming that the Potentiometer Input
Module is in module position 3.)
8. Press
to go to ‘
GO-no’.
9. Press
or
to see ‘
GO-YES’, which starts the calibration procedure.
10. Calibration is complete when the display returns to ‘
GO-no’.
11. Press
and
together to return directly to the Operator level.
12. The controller should still be in Manual mode.
13. Drive the valve to its fully closed position using
.
14. Press
until you get to ‘
ip-List’.
15. Press
to get to ‘
PCAL-OFF’.
16. Press
or
to turn ‘
PCAL’ to ‘on’.
17. Press
and the upper readout indicates ‘
Pot’.
18. Press
or
to get to ‘
Pot-3A.Lo’
19. Press
to go to ‘
GO-no’.
20. Press
or
to see ‘
GO-YES’, which starts the calibration procedure.
21. Calibration is complete when the display returns to ‘
GO-no’.
22. Press
and
together to return directly to the Operator level.
23. Press the AUTO/MAN button to place the controller in AUTO and the calibration of the
position feedback potentiometer is now complete.