JOHNSON CONTROLS
136
SECTION 8 - MICROPANEL
Form 201.28-NM1.1
Issue date: 08/06/2021
System data keys 1 through 4
LD10605
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
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.
System 1 data key operation
The SYSTEM 1 DATA key provides the user with ac-
cess 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 dis-
plays all of the measured system pressures (oil and dis-
charge).
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
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 dis-
charge 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
