Variable Geometry Diffuser Setpoints Screen; Figure 21 - Variable Geometry Diffuser Setpoints Screen - York YK-EP B Operation & Maintenance Manual

SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION

VARIABLE GEOMETRY DIFFUSER SETPOINTS SCREEN

FIGURE 21 - VARIABLE GEOMETRY DIFFUSER SETPOINTS SCREEN

OVERVIEW
The Variable Geometry Diffuser setpoints are main-
tained on this screen. All setpoints require a login ac-
cess level of Service.
Requires a login access level of SERVICE.
DISPLAY ONLY
Stall Detector Voltage
Displays the Stall Detector output voltage, as received
by the Microboard.
Discharge Pressure
Displays the Discharge Pressure.
Condenser Pressure
Displays the Condenser Pressure.
58
Pre-Rotation Vanes Position
Displays the position of the Pre-Rotation Vanes over
the range of 0% (fully closed) to 100% (fully open).
Displayed as XXX until calibration procedure is per-
formed by Service Technician.
VGD Closed Limit Switch
Displays the status of the VGD Limit Switch. Dis-
played as CLOSED when the switch is closed. This
would be when the VGD is in the fully closed position.
Otherwise, the switch is displayed as open.
Diffuser Gap Close (LED)
Illuminates when a close signal is being applied to the
VGD.
Diffuser Gap Open (LED)
Illuminates when an open signal is being applied to the
VGD.
Surge Avoidance Surge Detected (LED)
Illuminates momentarily when a surge is detected by
the Surge Protection feature. If equipped with a VSD
or MVVSD, these are only the surges detected while
the drive is running at maximum frequency.
FORM 160.87-OM1
ISSUE DATE: 8/24/2018
LD15428
JOHNSON CONTROLS