Pre-rotation vanes calibration screen
Figure 44: 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.
Note:
Requires a login access level of SERVICE. Service Technicians must refer to the
OptiView
Control Center - Service Instructions (Form 160.76-M1)
for operation instructions and explanation
of all programmable setpoints and displayed values.
Table 59: Display only fields
Field/LED name
Description
PRV Opening (LED)
Indicates the vanes are opening.
PRV Closing (LED)
Indicates the vanes are closing.
PRV Feedback Voltage
Displays the pre-rotation vanes position potentiometer feedback voltage.
PRV Actuator Mode
Displays Manual when either the PRV Open or Close or Hold manual buttons are
pressed at Service level.
Displays Auto when the Auto key is pressed to return to automatic PRV position
control.
Calibration in Progress (LED)
Indicates the calibration routine is in progress.
Table 60: Programmable
Button
Description
[PRV] Open (Manual)
This key puts the PRV in manual mode and sends an OPEN command to the PRV.
[PRV] Close (Manual)
This key puts the PRV in manual mode and sends a CLOSE command to the PRV.
[PRV] Hold (Manual)
This key puts the PRV in manual mode and sends a HOLD command to the PRV.
[PRV] Auto
This key puts the PRV into automatic control mode.
Start Calibration
Pressing this initiates the PRV Calibration routine. This option is hidden after
calibration has started.
Cancel Calibration
This option only becomes available after calibration has started.
Calibration Messages
Text messages are displayed indicating to step the user through the calibration
process and indicate its success or failure.
73
Model YK Style H Centrifugal Liquid Chillers with OptiView Control Center
