SECTION 8 - MICROPANEL
QUANTECH
121
FORM QTC4-NM1
ISSUE DATE: 4/2/2018
8
If any motor temp sensor is being ignored,
(selectable under Unit Set-up Mode),
that sensor’s value will be displayed as
XXXXX.
The next key press displays the compressor speed in
% (0 to 100%) and the compressor heater status (ON
or OFF)
SYS 1 COMPRESSOR SPEED = XXX.X %
HEATER = XXX
The next key press indicates the flash tank level low/
high and the economizer valve % open.
SYS 1 FLASH TANK LEVEL = XXX.X %
ECONOMIZER VALVE = XXX.X %
The next key press displays the condenser liquid line
subcooling and the drain valve position.
SYS 1 CONDENSER SUBCOOLING = XXX.X °F
CONDENSER DRAIN VALVE = XXX.X %
The next key press indicates the number of condenser
fans steps that are enabled (1 to 4), if the fans are not
operating on a VSD.
SYS 1 CONDENSER FANS ON = X
If the fans are controlled by an optional VSD, the dis-
play will indicate fan speed signal control voltage to
the VSD and the fan speed (0 to 100%).
SYS 1 CONDENSER FANS ON = X
VSD FAN SPEED = XX.X V = XXX %
The next key press will indicate the state of the op-
tional VI solenoids where XXX indicates ON or OFF.
SYS 1 VI STEP SOLENOID 1 = XXX
VI STEP SOLENOID 2 = XXX
The next key press displays the system run time in
days, hours, minutes and seconds.
SYS 1 RUN TIME
XX DAYS XX HOURS XX MINUTES XX SECONDS
The next key press indicates the status of the RUN Re-
lay where XXX is ON or OFF, the status of the RUN
Permissive signal (flow switch/remote start/stop circuit
2 and 15 of 1TB, SYS 1) or 2 and 16 of 1TB, SYS 2)
and whether the internal software is telling the system
to run (ON or OFF)
SYS 1 RUN SIGNALS RELAY = XXX
RUN PERM = XXX SOFTWARE = XXX
System 2 Data Key Operation
System 2 keys function the same as the SYSTEM 1
DATA key except that it displays data for System 2.
On a 2 compressor system, the SYSTEM 3 and SYS-
TEM 4 data keys will display the following messages:
SYS 3 DATA NOT AVAILABLE
SYS 4 DATA NOT AVAILABLE
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