17
ENG
“EVD evolution” +030222041 - rel. 1.0 - 01.06.2008
Checks after commissioning4.3
After commissioning:
check that the valve completes a full closing cycle to perform •
alignment;
set, if necessary, in Service or Manufacturer programming mode, the •
superheat set point (otherwise keep the value recommended by
CAREL based on the application) and the protection thresholds (LOP,
MOP, etc.). See the chapter on Protectors.
Other functions4.4
By entering Service programming mode, other types of main control can
be selected (transcritical CO
2
, hot gas bypass, etc.), as well as so-called
special control functions, which do not involve the superheat, activating
auxiliary controls that use sensors S3 and/or S4 and setting the suitable
values for the control set point and the LowSH, LOP and MOP protection
thresholds (see the chapter on “Protectors”), which depend on the specific
characteristics of the unit controlled.
By entering Manufacturer programming mode, finally, the operation of
the driver can be completely customised, setting the function of each
parameter. If the parameters corresponding to PID control are modified,
the driver will detect the modification and indicate the main control as
“Customised”.
To Next Page
Loading...
Need help?
General
