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Voltage Range:
This is the compressor motor AC power line ap pli ca tion.
Selections are 200-208, 220-240, 380, 400, 415, 440-
480, 550-600 and Disabled. The Microboard uses the
programmed value to determine the overvoltage and
undervoltage shutdown thresholds for "LCSSS – HIGH
SUPPLY LINE VOLTAGE" and "LCSSS – LOW SUP-
PLY LINE VOLTAGE" cycling shut downs as de scribed
in Operation Manual 160.54-O1. If DIS ABLED is se-
lect ed, the shutdown thresh olds will be ig nored. This
check should not be arbitrarily dis abled.
1. Press VOLTAGE RANGE key.
2. Use ◄ and ► keys to scroll to desired value.
3. Press ENTER (✔) key.
Open SCR Enable/Disable:
This allows the Open SCR safety check, per formed
by the Logic/Trigger Board, to be disabled. This must
NEV ER be disabled unless advised by the YORK
fac to ry.
1. Press OPEN SCR key.
2. Use ◄ and ► keys to select Enable or Dis able.
3. Press ENTER (✔) key.
Kilowatt Hours (KWH) Reset:
This allows the KWH to be set to a desired starting value
in the event the BRAM has to be fi eld replaced. This
must never be arbitrarily performed.
1. Press KWH RESET key.
2. Use numeric keypad keys to enter desired value.
3. Press ENTER (✔) key.
MOD "A" MULTIPLEXED DATA INTERFACE LIQUID
COOLED SOLID STATE STARTER
If the chiller is equipped with this model starter the
start er Logic Board is located in the OptiView Control
Center. Operation of this board and overall starter op-
er a tion is contained in YORK Service Manual 160.46-
OM3.1. The following procedures can be used to ver i fy
the cal i bra tion and perform the calibration if necessary.
If the Logic Board is fi eld replaced, fi eld cal i bra tion is
necessary. Logic Board Program Jumper JP5 (300V/
600V) must be placed in the appropriate position per
the com pres sor motor AC power line.
Logic Board Program Jumper:
Place Jumper J5 (300V/600V) in appropriate position
per the Compressor Motor AC Power Line application
as follows:
YORK INTERNATIONAL
600V - Place over pins 1 & 2 for 380/400/415, 440/460/
480 or 550/575/600 VAC applications.
300V - Place over pins 2 & 3 for 200/208 or 220/230/240
VAC applications.
Setpoints:
1. At the Keypad, log in at SERVICE access lev el
us ing access code 1 3 8 0 .
2. Select MOTOR Screen.
3. Enter the following Setpoints using pro ce dures
below:
Full Load Amps :
This is the Full Load Amps (FLA) of the chiller as list ed
on the Sales Order Screen. The Microboard uses the pro-
grammed value to perform Current Limit functions and
display compressor motor current in terms of % FLA.
1. Press FULL LOAD AMPS key.
2. Use numeric keypad keys to enter cor rect val ue.
3. Press ENTER (✔) key.
Voltage Range:
This is the AC Power line voltage ap plied to the Com-
pres sor Motor. Selections are: 380, 400, 415, 440-480,
550-600 and Supply Voltage Range Disabled. The
Microboard uses the programmed selection to de ter mine
the overvoltage and undervoltage thresholds for Start er
High Supply Line Voltage and Starter Low Sup ply Line
Voltage. Cycling shutdowns as de scribed in Op er a tor
Manual 160.54-O1. If Supply Voltage Range
Disabled is selected, the thresholds will be ignored and
these shutdowns will not occur. This check should not
be arbitrarily disabled.
1. Press VOLTAGE RANGE key.
2. Use ◄ and ► keys to scroll to desired val ue.
3. Press ENTER (✔) key.
Current Unbalance Check Enable/Disable:
While the chiller is running, if the compressor Motor
current in phase A, B and C becomes un bal anced, a
Safety shutdown is performed. Refer to Operator Man u al
160.54-O1 for complete de scrip tion of this check. This
Setpoint allows the check to be enabled or disabled. If
enabled, the check is performed; if dis abled, the check
is not performed.
1. Press CURRENT UNBALANCE key.
2. Use ◄ and ► keys to select Enable or Dis-
able.
3. Press ENTER (✔) key.
FORM 160.54-M1(503)
23
135
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