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YORK INTERNATIONAL
100
FORM 160.55-O1 (604)
ta neous ly; one via the serial communications link and
one via the start re lay TB6-24 in the OptiView Control
Cen ter. If they are not re ceived within 5 seconds of
one another, a cycling shut down is performed and this
mes sage is displayed. This is generally indicative of
de fec tive wiring.
“LCSSS – INVALID CURRENT SCALE
SELECTION”
There is an invalid compressor motor current scale
jump er combination installed in the Liquid Cooled
Sol id Starter Logic/Trigger Board J1. Jumper combina-
tion determines allowable “100% FLA” setpoint range;
7L-35 to 260A, 14L-65 to 510A, 26L-125 to 850A and
33L-215 to 1050A. The chiller will be permitted to
start when the jumpers are conÞ gured correctly. Refer
to YORK Starter service manual 160.00-O2 for valid
jump er con Þ g u ra tions.
“LCSSS – PHASE LOCKED LOOP”
The Liquid Cooled Solid State Starter Logic/Trigger
Board phase locked loop circuit was not able to main-
tain lock with phase A of the power line. This could be
caused by a power line anomaly such as sag or jitter. A
power line frequency jitter of up to 3 Hz/second can be
tolerated. The chiller will automatically restart when
lock has resumed.
“LCSSS – LOW SUPPLY LINE VOLTAGE”
The Liquid Cooled Solid State Starter Logic/Trigger
Board has detected that the compressor motor AC
pow er line voltage, in any phase, decreased below the
low line voltage threshold continuously for 20 seconds.
The chill er will automatically restart when the voltage
in all phases returns to the restart level. The thresholds
are as follows:
Supply Voltage Range (Volts) Shutdown(Volts) Restart(Volts)
Disabled None N/A
200-208 160 174
220-240 185 200
380 305 331
400 320 349
415 335 362
440-480 370 400
550-600 460 502
“LCSSS – HIGH SUPPLY LINE VOLTAGE”
The Liquid Cooled Solid State Starter Logic/Trigger
Board has detected that the compressor motor AC pow er
line voltage, in any phase, exceeded the high line volt age
thresh old continuously for 20 seconds. The chiller will
automatically restart when the voltage in all phases re turns
to the restart level. The thresholds are as follows:
Supply Voltage Range (Volts) Shutdown(Volts) Restart(Volts)
Disabled None N/A
200-208 227 226
220-240 262 261
380 415 414
400 436 435
415 454 453
440-480 524 523
550-600 655 654
“LCSSS – LOGIC BOARD PROCESSOR”
Communication between the V25 Microprocessor and
Digital Signal Processor (DSP) on the Liquid Cooled
Solid State Starter Logic/Trigger Board has been in-
ter rupt ed. The chiller will automatically restart when
com mu ni ca tions are restored.
“LCSSS - PHASE LOSS”
(Flash Memory Card version C.MLM.02.01 or
later)
The Liquid Cooled Solid State Starter Logic/Trigger
Board has detected the line-to-line RMS voltage in any
phase has decreased to <
30% of the lowest value of the
programed voltage range. If the pro grammed volt age
range is “Disabled”, a value of 60VAC is used as the
threshold. The chiller will automatically restart when the
line voltage is > the shutdown threshold. The volt age
range is pro grammed by a Service technician fol low ing
in struc tions in Service Manual 160.55-M1.
“LCSSS – PHASE ROTATION/LOSS”
(Flash Memory Card version C.MLM.02.00 only)
The Liquid cooled Solid State Starter Logic/Trigger
Board has detected that the three-phase compressor
motor power line voltage phase rotation is not correct
or the line-to-line voltage in any phase has decreased to
<30% of nominal. The chiller will automatically re start
when the power line conditions are acceptable.
“LCSSS – LOGIC BOARD POWER SUPPLY”
Following application of power, this message is dis-
played and a snapshot of the LCSSS parameters and
time of power failure are sent to the OptiView Control
Center.
COMPRESSOR MOTOR VARIABLE
SPEED DRIVE:
CYCLING SHUTDOWN MESSAGES
The following Cycling shutdown messages are dis played
on Compressor Motor Variable Speed Drive (VSD) ap-
plications only. These messages are gen er at ed by events
that occur within the VSD. The chiller will au to mat i cal ly
OptiView Control Center