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 Description
High Pressure Switch Displays whether the high pressure switch is open or closed.
Discharge Superheat
Displays the discharge superheat of the economizer in degrees in
tenths.
Economizer Pressure Displays the economizer pressure of the economizer.
Saturation Temperature Displays the saturation temperature in tenths of the economizer.
Refrigerant Level
Displays the level of the refrigerant in the economizer in
percentage.
Level Control State
Displays the level control state as follows:
Manual
Inactive
Startup Hold
Setpoint Ramp
PID Control
Level Control Valve
Command
Displays the state of the Level Control Valve in percent of open,
where 100.0% is fully open and 0.0% is fully closed.
53YK-EP Style B Centrifugal Chiller
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