Pre-Rotation Vanes Calibration Screen - York YK-EP Operation And Maintenance Manual

Pre-Rotation Vanes calibration screen

Figure 25: Pre-Rotation Vanes calibration screen
This screen displays a cutaway view of the chiller compressor, revealing the Pre-Rotation Vanes and
provides the capability of calibrating the Pre-Rotation Vanes for either Variable Speed Drive or Hot
Gas Bypass applications.
Note: Requires a login access level of SERVICE.
Table 62: Display only
Field/LED name
Pre-Rotation Vanes Opening
(LED)
Pre-Rotation Vanes Closing
(LED)
Calibration in Progress
(LED)
Calibration Messages
Pre-Rotation Vanes Voltage
Table 63: Programmable
Button Access level
Start
Service
Calibration
Cancel
Service
Calibration
74
Description
Indicates the vanes are opening.
Indicates the vanes are closing.
Indicates the calibration sequence is in progress.
These are text messages which step the user through the calibration
process and indicate its success or failure.
Displays the Pre-Rotation Vanes position potentiometer feedback
voltage.
Description
This option is hidden after calibration has started.
This option only becomes available after calibration has started.
YK-EP Style B Centrifugal Chiller