YORK INTERNATIONAL
100
FORM 160.55-O1 (920)
taneously; one via the serial communications link and
one via the start relay TB6-24 in the OptiView Control
Center. If they are not received within 5 seconds of
one another, a cycling shutdown is performed and this
message is displayed. This is generally indicative of
defective wiring.
“LCSSS – INVALID CURRENT SCALE
SELECTION”
There is an invalid compressor motor current scale
jumper combination installed in the Liquid Cooled
Solid 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 configured correctly. Refer
to YORK Starter service manual 160.00-O2 for valid
jumper configurations.
“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
power line voltage, in any phase, decreased below the
low line voltage threshold continuously for 20 seconds.
The chiller 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 power
line voltage, in any phase, exceeded the high line voltage
threshold continuously for 20 seconds. The chiller 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
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-
terrupted. The chiller will automatically restart when
communications 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 programmed voltage
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 voltage
range is programmed by a Service technician.
“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 restart
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 displayed
on Compressor Motor Variable Speed Drive (VSD) ap-
plications only. These messages are generated by events
that occur within the VSD. The chiller will automatically
restart when the cycling condition clears.
OptiView Control Center
