YVAA Style A Air-Cooled Screw Liquid Chillers ... - Johnson Controls
YVAA Style A Air-Cooled Screw Liquid Chillers ... - Johnson Controls
YVAA Style A Air-Cooled Screw Liquid Chillers ... - Johnson Controls
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SECTION 8 - MICROPANEL<br />
General<br />
98<br />
UNIT DATA KEY<br />
UNIT DATA<br />
KEY<br />
The UNIT DATA key provides the user with displays<br />
of unit temperatures, and unit related data. Displays<br />
can be selected by repeatedly pressing the UNIT DATA<br />
key or the▲ or ▼ Arrow Keys.<br />
Unit Data Key Operation<br />
The first key press displays Evaporator Leaving and<br />
Return Chilled <strong>Liquid</strong> Temperatures.<br />
UNIT CHILLED LIQUID LEAVING = XXX.X °F<br />
ENTERING = XXX.X °F<br />
The next key press of the UNIT DATA key or the ▼<br />
(ARROW) key displays the ambient air temperature.<br />
UNIT<br />
OUTSIDE AMBIENT AIR TEMP = XXX.X °F<br />
The next key press will display the time remaining on<br />
the load and unload timers.<br />
UNIT LOAD TIMER = XXX SEC<br />
UNLOAD TIMER = XXX SEC<br />
The next key press displays the error in temperature<br />
between the actual leaving chilled liquid temperature<br />
and the setpoint temperature. The display also shows<br />
the rate of change of the chilled liquid temperature.<br />
LD10605<br />
UNIT TEMP ERROR = XXX.X °F<br />
RATE = XXX.X °F/M<br />
FORM 201.28-NM1.1<br />
ISSUE DATE: 8/29/2012<br />
The next key press displays the system designated as the<br />
lead system and the Flow Switch status (ON or OFF).<br />
UNIT LEAD SYSTEM NUMBER = X<br />
FLOW SWITCH = XXX<br />
The next key press displays the status of the evaporator<br />
pump and heater, where XXX is either ON or OFF.<br />
UNIT EVAP PUMP RUN = XXX<br />
EVAP HEATER = XXX<br />
The next key press displays the status of Active Remote<br />
Control.<br />
UNIT ACTIVE REMOTE CONTR0L = XXXXXX<br />
TYPE: RCC ISN CURR TEMP SOUND<br />
XXXXX is either ACTIVE or NONE.<br />
If no remote keys are active, the items on the second<br />
line are all blanked out. Any remote items that are active<br />
will be displayed, while the inactive items will be<br />
blanked out.<br />
JOHNSON CONTROLS