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Unit Data Key - Quantech QTC4 STYLE A Series Installation Operation & Maintenance

Air-cooled screw liquid chillers with variable speed drive, 150 - 500 tons, 525 - 1750 kw, 2 compressor, 60 hz.
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SECTION 8 - MICROPANEL
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 Temperatures.
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
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.
118

UNIT DATA KEY

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
The next key press displays the status of Active Re-
mote Control.
UNIT ACTIVE REMOTE CONTROL = XXXXXX
TYPE: RCC ISN CURR TEMP SOUND
XXXXX is either ACTIVE or NONE.
If no remote keys are active, the items on the second
line are all blanked out. Any remote items that are ac-
tive will be displayed, while the inactive items will be
blanked out.
FORM QTC4-NM1
ISSUE DATE: 4/2/2018
LD21850
TEMP ERROR = XXX.X °F
RATE = XXX.X °F/M
FLOW SWITCH = XXX
EVAP PUMP RUN = XXX
EVAP HEATER = XXX
QUANTECH

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