Economizer Screen - York YK-EP Operation And Maintenance Manual

Economizer screen

Figure 17: Economizer screen
This screen displays a cutaway view of the chiller economizer, revealing the economizer interior and
the economizer refrigerant level control.
Note: Requires a login access level of SERVICE to Change Setpoints but can be viewed at
Operator Level.
Table 37: Display only
Field/LED name
High Pressure Switch
Discharge Superheat
Economizer Pressure
Saturation Temperature
Refrigerant Level
Level Control State
Level Control Valve
Command
YK-EP Style B Centrifugal Chiller
Description
Displays whether the high pressure switch is open or closed.
Displays the discharge superheat of the economizer in degrees in
tenths.
Displays the economizer pressure of the economizer.
Displays the saturation temperature in tenths of the economizer.
Displays the level of the refrigerant in the economizer in
percentage.
Displays the level control state as follows:
Manual
Inactive
Startup Hold
Setpoint Ramp
PID Control
Displays the state of the Level Control Valve in percent of open,
where 100.0% is fully open and 0.0% is fully closed.
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