York YK Style H Operation Manual page 92

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
Input Current Total Demand Distortion –
(L1, L2, L3) Displays the calculated Total Dynamic
Distortion (TDD) for each of the input current lines.
Output Current (RMS) – Phase A, B, C
Displays the phase current measured to the motor.
Input kVA
Displays the Input kVA measured by the VSD.
Input Power Factor
Displays the relationship between the Input Power and
the Supply kVA.
Motor % Full Load Amps
Displays the motor current as a percentage of the Full
Load Amps (FLA) value.
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
Input Job Full Load Amps
Access Level Required: SERVICE
Allows entry of the job input full load amp limit within
a range limited from 10% to 100% of the VSD nominal
input current at nominal line voltage.
Rated Motor Voltage
Access Level Required: SERVICE
Displays the motor voltage rating, based on configura-
tion.
Rated Motor Current
Access Level Required: SERVICE
Displays the motor current as a percentage of the Full
Load Amps (FLA) value.
kWH Reset
Access Level Required: ADMIN
Allows the user to reset the cumulative Kilowatt hours
to zero (0).
92
Motor Lube
Access Level Required: VIEW
Moves to the subscreen allowing operator acknowl-
edgement of the compressor motor lubrication and
viewing of the compressor motor lubrication param-
eters.
Local Input Current Limit
Access Level Required: OPERATOR
Allows the user to specify the maximum allowed input
current (as a percentage of FLA). When the input cur-
rent reaches this value, the Pre-rotation Vanes will not
be permitted to open further. If the input 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 Details
Access Level Required: VIEW
Moves to the subscreen which provides more informa-
tion about the Variable Speed Drive.
Motor Details
Access Level Required: SERVICE
Moves to a subscreen that provides information and
setpoints pertinent to the Motor.
FORM 160.76-O2
issue date: 6/15/2015
JOHNsON CONtROLs

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