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Form 201.23-NM2
Issue date: 12/19/2023
Figure 133 - Unit data key
General
The UNIT DATA key provides the user with displays
of unit temperatures, and unit related data. Displays
can be selected by repeatedly pressing the UNIT DATA
key or the▲ or ▼ Arrow Keys.
Unit data key operation
The first key press displays Evaporator Leaving and
Return Chilled Liquid Temps.
UNIT CHILLED LIQUID LEAVING = XXX.X °F
ENTERING = XXX.X °F
The next key press of the UNIT DATA key or the ▼
(ARROW) key displays the ambient air temperature.
UNIT
OUTSIDE AMBIENT AIR TEMP = XXX.X °F
The next key press will display the time remaining on
the load and unload timers.
UNIT
LOAD TIMER = XXX SEC
UNLOAD TIMER = XXX SEC
Johnson Controls
Unit data key
UNIT DATA
KEY
The next key press displays the error in temperature
between the actual leaving chilled liquid temperature
and the setpoint temperature. The display also shows
the rate of change of the chilled liquid temperature.
UNIT
The next key press displays the system designated as
the lead system and the Flow Switch status (ON or
OFF).
UNIT
LEAD SYSTEM NUMBER = X
The next key press displays the status of the evapora-
tor pump and heater, where XXX is either ON or OFF.
UNIT
EVAP PUMP RUN = XXX
Section 8 - Micropanel
LD10605
TEMP ERROR = XXX.X °F
RATE = XXX.X °F/M
FLOW SWITCH = XXX
EVAP HEATER = XXX
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