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

A. MANUAL STOP
PRIMARY MESSAGE
MANUALLY STOPPED — PRESS
TERMINATE PUMPDOWN MODE
SHUTDOWN IN PROGRESS
SHUTDOWN IN PROGRESS
ICE BUILD
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 9 — CVC 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
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 CONTACT CLOSED
START COMMAND IN EFFECT
ICE BUILD MODE
PROBABLE CAUSE/REMEDY
PIC II 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. Water pumps
are deenergized within one minute.
Chiller shutdown from Ice Build operation.
PROBABLE CAUSE/REMEDY
Time schedule for PIC II is unoccupied. Chillers will start only when
occupied.
Remote contacts are open. Close contacts to start.
Chiller START/STOP on MAINSTAT manually forced to stop.
Release point to start.
Chiller timer counting down. Unit ready to start.
Chiller timer counting down. Unit ready to start. Remote contact
enabled and closed.
Chiller START/STOP on MAINSTAT manually forced to start.
Release value to start under normal control.
Chiller in recycle mode.
Time schedule for PIC II is unoccupied. Chiller will start when occu-
pied. Make sure the time and date are correct. Change values in
TIME AND DATE screen.
Remote contacts have stopped the chiller. Close contacts to start.
Chiller START/STOP on MAINSTAT manually forced to stop.
Release point to start.
Chiller timers complete, unit start will commence.
Chiller timer counting down. 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 top stop.
PROBABLE CAUSE/REMEDY
Unit in recycle mode, chilled water temperature is not sufficiently
above set point to start.
Unit in recycle mode, chilled water temperature is not sufficiently
above set point to start.
Chiller START/STOP on MAINSTAT manually forced to start,
chilled water temperature is not sufficiently above set point to start.
Chiller in ICE BUILD mode. Chilled fluid temperature is satisfied
for ICE BUILD conditions.
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