Quantech QTC40160 Installation Operation & Maintenance page 123

Form QTC4-NM2
Issue date: 05/12/2023
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
The next key press indicates that the economizer valve
% open.
SYS 1 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
SYS X CONDENSER FANS ON = X
COND VSD FAN FAULT = XXX
SYS X FAN CONTROL STATE = XXXXXXXX
CONDENSER FAN SPEED COMMAND = XXX.X%
The above message shows when Condenser Fan Con-
trol is Opt VSD or Opt Enhanced Fans.
Fan control state text is as follows:
• 0 = UNDEFINED
• 2 = MANUAL
• 3 = INACTIVE
• 4 = START HOLD
• 5 = SETP HOLD
• 6 = PID CTRL
• 9 = OS DIFF OR
• 10 = DS DIFF OR
• 20 = VSD COOL
Quantech
SPEED = XXX.X %
HEATER = XXX
CONDENSER FANS ON = X
SYS X DISCHARGE PRESS SETP = XXX.X PSIG
ACTIVE DISCHARGE PRESS SETP = XXX.X PSIG
The message above shows when Condenser Fan Con-
trol is Opt VSD or Opt Enhanced Fans
SYS X ACTIVE MIN FAN SPEED = XXX.X%
MINIMUM DISCHARGE PRESS = XXX.X PSIG
The next key press indicates the state of the
optional 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
Relay 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
RUN PERM = 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
Section 8 - Micropanel
8
RELAY = XXX
SOFTWARE = XXX
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