Specifications

70
JOHNSON CONTROLS
Form 201.28-NM1.EN.PED/CE (0211)
MICROPANEL
Status Fault Type
SYS X COMPRESSOR RUNNING
SYS X FAULT: HIGH DIFF OIL PRESSURE
This message indicates the type of system fault. This
screen is skipped if a UNIT Fault caused the shutdown.
Unit Fault Type
UNIT FAULT:
LOW AMBIENT TEMP
This message indicates the type of unit fault. This screen
is skipped if a SYSTEM Fault caused the shutdown.
All Fault Data
FAULT HIST X ALL FAULT ZZ OF WW
YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY
The ALL FAULT display indicates whether a fault
occurred while the unit is shutting down on another fault.
If a control panel fault occurred while the unit is shutting
down on a VSD fault before it is reset, the control panel
fault is an ALL FAULT of the VSD fault.
If another VSD fault occurs while the unit is shutting
down on a VSD fault, the next VSD fault will be
registered as an ALL FAULT of the VSD fault.
If a VSD fault occurs during the ramp down shutdown of
a control panel fault, the VSD fault is registered as a new
fault, not an ALL FAULT
X is the history number, YYY... is the ALL FAULT
description, ZZ is the ALL FAULT number and WW
is the total number of All Faults for the current history.
Sometimes, multiple faults may occur during the
shutdown and multiple displays will be observed when
scrolling through the data using the ▼ arrow. In most
cases, the ALL FAULT display will indicate NONE. The
ALL FAULT display will only indicate the cause of the
fault. No additional chiller information will be displayed
under the ALL FAULT, since a snapshot of all chiller
data was taken at the time of the first fault.
Unit Data
Evaporator Leaving and Entering Chilled
Liquid Temperatures
UNIT CHILLED LIQUID LEAVING = XXX.X °F
ENTERING = XXX.X °F
This message indicates the leaving and entering chilled
liquid temperatures at the time of the fault.
Ambient Air Temperature
UNIT
OUTSIDE AMBIENT AIR TEMP = XXX.X °F
This message indicates the ambient air temperature at the
time of the fault.
Load / Unload Timers
UNIT LOAD TIMER = XXX SEC
UNLOAD TIMER = XXX SEC
This message indicates remaining time on the load and
unload timers at the time of the fault.
Chilled Liquid Temperature Error and Rate of
Change
UNIT TEMP ERROR = XXX.X °F
RATE = XXX.X °F/M
This message indicates the temperature error between
the actual and the programmed setpoint at the time of the
fault and the rate of temperature change.
Programmed Lead System Selection and Flow
Switch Status
UNIT LEAD SYSTEM NUMBER = 1
FLOW SWITCH = OFF
This message indicates the designated lead system at the
time of the fault and whether the flow switch was ON
(Closed) or OFF (Open) at the time of the fault.
Evaporator Pump and Evaporator Heater
Status
UNIT EVAP PUMP RUN = OFF
EVAP HEATER = OFF
This message indicates the status of the evaporator pump
and the evaporator heater at the time of the fault. XXX
indicates ON or OFF.