System Data Key - York YCAV0569 Installation Operation & Maintenance

Air-cooled screw liquid chillers
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MICRO PANEL
SYSTEM 1
DATA KEY
SYSTEM 2
DATA KEY
SYSTEM 3
DATA KEY
SYSTEM 4
DATA KEY
GENERAL
The data keys provide the user with many displays of
individual system temperatures, pressures, and other op-
erating data. These keys have multiple displays, which
can be seen by repeatedly pressing the SYSTEM DATA
or the ▲ or ▼ (ARROW) keys. An explanation of each
key and its messages is provided below.
SYSTEM 1 DATA Key operation
The SYSTEM 1 DATA key provides the user with access
to system 1 operating parameters. The following is a list
of the data in the order in which it appears.
The first key press of the SYSTEM X DATA key displays
all of the measured system pressures (oil, suction, and
discharge).
SYS 1 PRESSURES
SUCTION = XXXX DISCHARGE = XXXX PSIG
198
SYSTEM DATA KEYS 1-4
OIL = XXXX PSIG
The second key press of the SYSTEM DATA Key or the
▼ (DOWN ARROW) key displays all of the measured
system temperatures (oil, suction, and discharge).
SYS 1 TEMPERATURES
SUCTION = XXX.X DISCHARGE = XXX.X °F
The next key press displays the suction temperature
and all of the calculated suction temperatures (saturated
suction and system superheat).
SYS 1 SUCTION
SUPERHEAT = XXX.X SAT TEMP = XXX.X °F
The next key press displays the discharge temperature
and all of the calculated discharge temperatures (satu-
rated discharge and discharge superheat).
SYS 1 DISCHARGE
SUPERHEAT = XXX.X SAT TEMP = XXX.X °F
The next key press displays the system 1 motor thermis-
tor temperatures.
SYS 1 MOTOR TEMPS
T2 = XXX.X °F
FORM 201.21-NM2 (616)
LD10605
OIL = XXX.X °F
TEMP = XXX.X °F
TEMP = XXX.X °F
T1 = XXX.X °F
T3 = XXX.X °F
JOHNSON CONTROLS

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