Troubleshooting Guide - Carrier AquaEdge 19XR series Start-Up, Operation And Maintenance Instructions Manual

Single-stage or two-stage semi-hermetic centrifugal liquid chillers with pic ii controls and hfc-134a 50/60 hz
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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
LEGEND FOR TABLE 16 (A THROUGH K)
CCM — Chiller Control Module
CHW — Chilled Water
ICVC — International Chiller Visual Control
ISM
— Integrated Starter Module
PIC II — Product Integrated Controls II
VFD — Variable Frequency Drive
Table 16 — 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 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.
Low Load Shutdown
PROBABLE CAUSE/REMEDY
Time schedule for PIC II is unoccupied. Chillers will start only
when occupied. Check OCCPCnnS and HOLIDAYS screens.
Remote contacts are open. Close contacts on ISM J2-5 and
J2-6 to start.
Chiller START/STOP on MAINSTAT manually forced to
STOP. Release SUPERVISOR Force or send Start Force to
start.
Chiller timer counting down. Unit ready to start.
Chiller timer counting down. Unit will proceed to start. Remote
contact Enabled and Closed. The chiller will stop when the
remote contacts are opened.
Chiller START/STOP on MAINSTAT manually forced to
START. Release SUPERVISOR force to start under normal
control.
Chiller is in recycle mode.
Time schedule for PIC II is UNOCCUPIED in OCCPC01S
screen. Chiller will start when state changes to OCCUPIED.
Make sure the CURRENT TIME and DATE are correct in the
TIME AND DATE screen.
Remote contacts have stopped the chiller. Close contacts on
ISM J2-5 and J2-6 to start.
Chiller START/STOP on MAINSTAT manually forced to
STOP. Release SUPERVISOR force to start.
Chiller timer countdown is complete. Unit will proceed to start.
Chiller timer count down complete. Unit will proceed to 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 water temperature is not sufficiently
above Setpoint to start.
Unit in recycle mode, chilled water temperature is not sufficiently
above Setpoint to start.
Chiller START/STOP on MAINSTAT manually forced to START,
chilled water temperature is not sufficiently above Setpoint to start.
Chiller in ICE BUILD mode. Chilled water temperature is satisfied for
ICE BUILD conditions.
100

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