Economizer PRV calibration screen
Figure 16: Economizer PRV calibration screen
This screen displays a cutaway view of the chiller economizer compressor, revealing the Pre-
Rotation Vanes and provides the capability of calibrating the Pre-Rotation Vanes.
Note: Requires a login access level of SERVICE.
Table 34: Display
Field/LED name Description
Pre-Rotation Vanes Opening
(LED)
Indicates the vanes are opening.
Pre-Rotation Vanes Closing
(LED)
Indicates the vanes are closing.
PRV Feedback Voltage Displays the feedback voltage on the PRV motor.
PRV Calibration State
Displays the state of the PRV calibration as follows:
• Off
• Open
• Check Open
• Close
• Check Close
• Check Span
• Pass
• Fail
PRV Calibration State Timer Displays the amount of time.
51YK-EP Style B Centrifugal Chiller
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