York YK Style H Operation Manual page 106

With optiview control center centrifugal liquid chillers, for electro-mechanical starter, solid state starter and variable speed drive
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SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
Precharge Contactor (LED)
Indicates whether the output to the Precharge Contactor
is energized.
Phase Rotation
Displays the phase rotation detected by the Harmonic
Filter (A, B, C or C, B, A)
Total Supply kVA
Displays the total supply Kilovolt-Amps measured by
the Harmonic Filter.
Heatsink Temperature
(Labeled Baseplate Temperatures on VSD with part
number 371-03789-xxx (503HP 60Hz; 419HP 50Hz).
Displays the temperature of the Harmonic Heatsink
(baseplate).
Voltage Peak (N-L1, N-L2, N-L3)
Displays the 3-phase peak voltages as measured by the
Harmonic Filter (Neutral to Line).
RMS Voltage (L1-L2, L2-L3, L3-L1)
Displays the 3-phase RMS Voltages across each line.
Voltage Total Harmonic Distortion (L1, L2, L3)
Displays the 3-phase voltage Total Harmonic Distor-
tion (THD) measurements.
RMS Filter Current (L1, L2, L3)
Displays the 3-phase filter current values as measured
by the Harmonic Filter.
Supply Current Total Demand Distortion
(L1, L2, L3)
Displays the 3-phase Current Total Demand Distortion
(TDD) measurements.
RMS Supply Current (L1, L2, L3)
Displays the 3-phase RMS Voltages across each line.
106
For fields requiring access level of SER-
VICE. Service Technicians refer to the
OptiView Control Center - Service Instruc-
tions (Form 160.76-M1) for operation
instructions and explanation of all pro-
grammable setpoints and displayed values.
PROGRAMMABLE
Local Motor Current Limit
Access Level Required: OPERATOR
Allows the user to specify the maximum allowed mo-
tor current (as a percentage of FLA). When the motor
current reaches this value, the Pre-rotation Vanes will
not be permitted to open further. If the motor current
rises above this value, the Pre-rotation Vanes will close
to reduce the current to this value.
Pulldown Demand Limit
Access Level Required: OPERATOR
Allows the user to specify the current limit value (as a
percentage of FLA) to which the chiller will be limited
during the specified pulldown limit time. This value
will override the Motor Current Limit value during this
time period. This function is used to provide energy
savings following chiller start-up.
Pulldown Demand Time
Access Level Required: OPERATOR
Allows the user to set a period of time for which the
pulldown demand limit will be in effect after the chiller
starts.
NAVIGATION
Home
Access Level Required: VIEW
Returns user to HOME Screen.
VSD
Access Level Required: VIEW
Returns user to VSD Screen.
FORM 160.76-O2
issue date: 6/15/2015
JOHNsON CONtROLs

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