York YK-EP, Operation And Maintenance Manual

Page: 41 / 268

Table 24: Programmable
Button Access level Description
Set Service
Pressing this button will open a dialog box where the user can
manually enter a valve command. Once a legitimate value has
been entered and the Enter key pressed, the Condenser Level
Control Valve Mode will be set to Manual if it had been in Auto. The
Condenser Level Control Valve Command will be set to the entered
value.
High
Threshold
Admin
Sets the high limit for the Subcooler Effectiveness Warning.
(Adjustable 0 to 100%; default 50%).
Low
Threshold
Admin
Sets the low limit for the Subcooler Effectiveness Warning.
(Adjustable 0 to 100%; default 50%).
KP Admin
Sets the Proportional value of the PID control loop. (Adjustable 0.1
to 15; default 1.0).
Ti Admin
Sets the Integral value of the PID control loop. (Adjustable 0.1 to
200; default 100).
Td Admin
Sets the Derivative value of the PID control loop. (Adjustable 0.0 to
200; default 0.0).
Table 25: Navigation
Button Access level Description
Home View Returns user to HOME Screen.
Condenser View Returns user to CONDENSER Screen.
41 YK-EP Style B Centrifugal Chiller