York YK-EP B Operation & Maintenance Manual page 66

SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
Pre-Rotation Vanes Control Mode
Indicates whether the vanes are under manual or auto-
matic control.
[Pre-Rotation Vanes] Open (LED)
Illuminates when an OPEN command is being sent to
the vanes.
[Pre-Rotation Vanes] Close (LED)
Illuminates when a CLOSE command is being sent to
the vanes.
PROGRAMMABLE
Set
Access Level Required: SERVICE
Allows manual programming of the Command Fre-
quency value. Manually programming this value will
put the drive frequency control in Manual Speed Con-
trol mode and send the programmed Command Fre-
quency to the drive.
Auto
Access Level Required: SERVICE
Puts the drive frequency control in automatic control.
The Pre-Rotation Vanes calibration must have been
successfully performed before this entry will be ac-
cepted.
Fixed
Access Level Required: SERVICE
Puts the drive frequency control in fixed speed mode,
commanding it to run at maximum frequency (50 or
60 Hz).
Raise
Access Level Required: SERVICE
Puts the drive frequency control into manual mode.
Each time it is pressed it increases the Command
Frequency to the drive by the amount defined by the
MANUAL INCREMENT key. It will not raise the val-
ue above the maximum allowed (50 or 60 Hz).
66
Lower
Access Level Required: SERVICE
Puts the drive frequency control into manual mode.
Each time it is pressed it lowers the Command Fre-
quency to the drive by the amount defined by the
MANUAL INCREMENT key. It will not lower the
value below the minimum allowed; (30Hz for 60Hz
units; 25Hz for 50Hz units).
Manual Increment
Access Level Required: SERVICE
Defines the amount by which the manual Raise and
Lower commands will change the Command Frequen-
cy to the drive in Manual Speed Control mode.
[Pre-Rotation Vanes] Open
Access Level Required: SERVICE
Puts the vane control into manual mode and sends an
OPEN command to the vanes.
[Pre-Rotation Vanes] Close
Access Level Required: SERVICE
Puts the vanes control into manual mode and sends a
CLOSE command to the vanes.
[Pre-Rotation Vanes] Hold
Access Level Required: SERVICE
Puts the vane control into manual control and sends a
HOLD command to the vanes.
[Pre-Rotation Vanes] Auto
Access Level Required: SERVICE
Puts the vane control into automatic mode.
NAVIGATION
Home
Access Level Required: VIEW
Returns user to HOME Screen.
Compressor
Access Level Required: VIEW
Returns user to COMPRESSOR Screen.
FORM 160.87-OM1
ISSUE DATE: 8/24/2018
JOHNSON CONTROLS