FORM 160.77-O2
ISSUE DATE: 11/15/2011
SECTION 3 - YKEP CONTROL PANEL OPERATION
JOHNSON CONTROLS
69
3
Ramp
Displays the percentage of vane position that the vanes
are limited to during startup.
System Head
Displays the sytem head differential pressure.
Primary Minimum Frequency
Head Factor
Displays the accoustic velocity required to keep the
compressor out of surge.
Min Speed
Displays the minimum frequency the primary motor is
allowed to operate at, without surging.
SY-160 Speed Control
VFD
Displays the operating frequency of the VFD.
Anti-Surge
PD1
Displays the antisurge parameter for maximum differ-
ential pressure.
PD2
Displays the anti-surge parameter for minimum differ-
ential pressure.
MVP1
Displays the minimum vane position at the maximum
differential pressure.
MVP2
Displays the minimum vane postion at the minimum
differential pressure.
Calc
Displays the calculated minimum vane position anti-
surge value.
TV-100A PRV
Displays the open percentage of the Pre-rotational
Vanes (provided by Primary Compressor PRV Pot ZE-
100A).
Open (LED)
Illuminated when the primary compressor PRV is
opening.
Close (LED)
Illumintated when the primary compressor PRV is
closing.
Hot Gas Control
Displays the control percentage of the Hot Gas Bypass
Valve.
HGV Control
Displays the open percentage of the Hot Gas Bypass
Valve (provided by TCV-100C).
Hot Gas Ramp
Displays the control percentage of the hot gas ramp.
PROGRAMMABLE
None
NAVIGATION
Capacity Tuning
Access Level Required: OPERATOR
Causes an instant navigation to the Capacity Tuning
Screen.
Capacity Limits
Access Level Required: OPERATOR
Causes an instant navigation to the Capacity Limits
Screen.
Economizer Capacity
Access Level Required: OPERATOR
Causes an instant navigation to the Economizer Capac-
ity Screen.
Alarm History
Causes an instant navigation to view the Alarm History
Screen.
Manual Auto
Causes an instant navigation to the Manual Auto
Screen.
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