Troubleshooting Guide - Carrier AquaEdge 23XRV Start-Up, Operation And Maintenance Instructions Manual

High-efficiency variable speed screw chiller with greenspeed intelligence and pic iii controls 50/60 hz hfc-134a
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A. MANUAL STOP
PRIMARY MESSAGE
MANUALLY STOPPED — PRESS
TERMINATE PUMPDOWN MODE
SHUTDOWN IN PROGRESS
SHUTDOWN IN PROGRESS
ICE BUILD
SHUTDOWN IN PROGRESS
B. READY TO START
PRIMARY MESSAGE
READY TO START IN XX MIN
READY TO START IN XX MIN
READY TO START IN XX MIN
READY TO START IN XX MIN
READY TO START IN XX MIN
READY TO START IN XX MIN
READY TO START IN XX MIN
READY TO START
READY TO START
READY TO START
READY TO START
READY TO START
READY TO START
STARTUP INHIBITED
C. IN RECYCLE SHUTDOWN
PRIMARY MESSAGE
RECYCLE RESTART PENDING
RECYCLE RESTART PENDING
RECYCLE RESTART PENDING
RECYCLE RESTART PENDING
Table 19 — ICVC Primary and Secondary Messages and
Custom Alarm/Alert Messages with Troubleshooting Guides
SECONDARY MESSAGE
CCN OR LOCAL TO START
TO SELECT CCN OR LOCAL
COMPRESSOR UNLOADING
COMPRESSOR DEENERGIZED
OPERATION COMPLETE
RECYCLE RESTART PENDING
SECONDARY MESSAGE
UNOCCUPIED MODE
REMOTE CONTACTS OPEN
STOP COMMAND IN EFFECT
OCCUPIED MODE
REMOTE CONTACTS CLOSED
START COMMAND IN EFFECT
RECYCLE RESTART PENDING
UNOCCUPIED MODE
REMOTE CONTACTS OPEN
STOP COMMAND IN EFFECT
OCCUPIED MODE
REMOTE CONTACTS CLOSED
START COMMAND IN EFFECT
LOADSHED IN EFFECT
SECONDARY MESSAGE
OCCUPIED MODE
REMOTE CONTACTS CLOSED
START COMMAND IN EFFECT
ICE BUILD MODE
PROBABLE CAUSE/REMEDY
PIC III in OFF mode, press CCN or LOCAL softkey to start unit.
Enter the CONTROL TEST table and select TERMINATE LOCKOUT
to unlock compressor.
Chiller unloading before shutdown due to soft/stop feature.
Chiller compressor is being commanded to stop. Liquid pumps are
deenergized within one minute.
Chiller shutdown from Ice Build operation.
Chiller is shutting down in recycle mode
PROBABLE CAUSE/REMEDY
Time schedule for PIC III is unoccupied. Chillers will start only when
occupied.
Remote contacts are open. Close contacts on Terminal Block TB1 to start.
Chiller START/STOP on MAINSTAT manually forced to stop.
Release force or send START force to start.
Chiller timer counting down. Unit ready to start.
Chiller timer counting down. Unit ready to start.
Remote contact enabled and closed.
The chiller will stop when the contacts are opened.
Chiller START/STOP on MAINSTAT manually forced to start.
Release force to start under normal control.
Chiller in recycle mode.
Time schedule for PIC III is unoccupied. Chiller will start when occupied.
Make sure the time and date are correct. Change values in TIME AND
DATE screen.
Remote contacts have stopped the chiller. Close contact on Terminal Block
TB1 to start.
Chiller START/STOP on MAINSTAT manually forced to stop. Release
point to start.
Chiller timer count down complete, unit start will commence.
Chiller timer count down complete. Unit ready for start.
Chiller START/STOP on MAINSTAT has been manually forced to start.
Chiller will start regardless of time schedule or remote contact status.
CCN loadshed module commanding chiller to stop.
PROBABLE CAUSE/REMEDY
Unit in recycle mode, chilled liquid temperature is not sufficiently above
set point to start.
Unit in recycle mode, chilled liquid temperature is not sufficiently above
set point to start.
Chiller START/STOP on MAINSTAT manually forced to start, chilled
liquid temperature is not sufficiently above set point to start.
Chiller in ICE BUILD mode. Chilled liquid temperature is satisfied for ICE
BUILD conditions.
99

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