Johnson Controls YORK YMC2 User Manual

Table 37: Display only fields
Field/LED name Description
Output Current (RMS) -
Phase A, B, C
Displays the RMS current measured to the motor, per phase.
VGD Position
Displays the variable geometry diffuser position as a value between 0
and 100%.
Input kVA Displays the supply kVA measured by the VSD.
Input Power Factor Displays the relationship between the Input Power and the Supply kVA.
Rated Motor Voltage Displays the motor voltage rating, based on configuration.
Maximum Motor
Current
Displays the maximum motor current, based on configuration.
Motor % Full Load
Amps
Displays the percentage of maximum motor current presently delivered,
based on highest phase.
Voltage Total Harmonic
Distortion - (L1, L2, L3)
Displays the Total Harmonic Distortion (THD) for each of the voltage lines
as calculated by the VSD.
Input Current Total
Demand Distortion -
(L1, L2, L3)
Displays the Total Dynamic Distortion (TDD) for each of the supply
current lines as calculated by the VSD.
Input Job Full Load
Amps
Shows 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.
Table 38: Programmable
Button Access Description
Local Input Current
Limit
Operator
Allows the user to specify the maximum allowed input
current (as a percentage of job FLA). When the input current
reaches this value, the input current override takes effect.
Pulldown Demand
Limit
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 input Current Limit value during this time period. This
function is used to provide energy savings following chiller
start-up. Pulldown demand limit is ignored in BAS (ISN)
control source because the BAS system is expected to use
its algorithms to reset current limit as required in that
operating mode.
Pulldown Demand
Time
Operator
Allows the user to set a period of time for which the
pulldown demand limit will be in effect after the chiller
starts.
YMC
2
Mod B with OptiView
™
Control Center
64

Johnson Controls YORK YMC2 Specifications

General

Brand	Johnson Controls
Model	YORK YMC2
Category	Chiller
Language	English