SECTION 8 - MICROPANEL
QUANTECH
127
FORM QTC4-NM1
ISSUE DATE: 4/2/2018
8
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 = X
FLOW SWITCH = XXX
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 = XXX
EVAP HEATER = XXX
This message indicates the status of the evaporator
pump and the evaporator heater at the time of the fault.
XXX indicates ON or OFF.
Active Remote Control Status
UNIT ACTIVE REMOTE CONTROL = XXXXXX
This message indicates whether the system was operat-
ing under Active Remote Control (RCC, ISN, LOAD,
TEMP, or SOUND) or standard control (NONE) at the
time of the fault.
UNIT SOUND LIMIT LOCAL = XXX %
ISN = XXX REMOTE = XXX %
This message indicates that sound limiting was in ef-
fect, the amount, and whether it was local or remotely
limited.
VSD Data
VSD Actual and Command Frequency
VSD FREQUENCY ACTUAL = XXX.X HZ
COMMAND = XXX.X HZ
This message indicates the VSD actual operating fre-
quency and the command frequency at the time of the
fault. Actual and command may not match due to load/
unload timers, limitation of 1 Hz per load/unload incre-
ment, and to allowable acceleration/deceleration of the
motor.
Compressor Amps and %FLA
The message indicates the compressor %FLA and mo-
tor currents for systems 1 and 2 at the time of the fault.
COMP 1 = XXX AMPS = XXX %FLA
COMP 2 = XXX AMPS = XXX %FLA
VSD Current Limit
VSD CURRENT LIMIT LOCAL = XXX %FLA
ISN = XXX REMOTE = XXX %FLA
This message displays the current limit values as set
locally, by an ISN, or a remote current limiting input at
the time of the fault.
DC BUS Voltage
VSD DC BUS VOLTAGE = XXX VDC
This message displays the DC Bus voltage at the time
of the fault.
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