YVAA Style A Air-Cooled Screw Liquid Chillers ... - Johnson Controls

SECTION 8 - MICROPANEL
General
100
SYSTEM 1
DATA KEY
SYSTEM 2
DATA KEY
SYSTEM 3
DATA KEY
SYSTEM 4
DATA KEY
The data keys provide the user with many displays of
individual system temperatures, pressures, and other
operating 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 and discharge).
SYS 1 PRESSURES OIL = XXXX PSIG
DISCHARGE = XXXX PSIG
The second key press of the SYSTEM DATA key or
the ▼ (DOWN ARROW) key displays system suction
and condenser liquid pressure.
SYS 1 PRESSURES SUCTION = XXXX PSIG
CONDENSER LIQUID = XXXX PSIG
SYSTEM DATA KEYS 1 THROUGH 4
FORM 201.28-NM1.1
ISSUE DATE: 8/29/2012
LD10605
The next key press displays system oil and eductor
temperatures.
SYS 1 TEMPERATURES OIL = XXX.X °F
EDUCTOR = XXX.X °F
The next key press displays system condenser liquid
temperature, liquid line subcooling and saturated discharge
temperature on the liquid line.
SYS 1 CONDENSER LIQUID TEMP = XXX.X °F
SUBCOOLING = XXX.X SAT TEMP = XXX.X °F
The next key press displays discharge temperature,
discharge superheat and saturated discharge pressure
at the compressor.
SYS 1 DISCHARGE TEMP = XXX.X °F
SUPERHEAT = XXX.X SAT TEMP = XXX.X °F
The next key press displays the System 1 motor thermistor
temperatures.
SYS 1 MOTOR TEMPS T1 = XXX.X °F
T2 = XXX.X °F T3 = XXX.X °F
If any motor temp sensor is being ignored,
(selectable under Unit Set-up Mode), that
sensor’s value will be displayed as
XXXXX.
JOHNSON CONTROLS