Carrier ComfortLink 6 Series Controls, Start-Up, Operation, Service, And Troubleshooting page 48

ALARM/ALERT ALARM OR
CODE ALERT
T182 Alert Compressor Protec-
tion Module 1 Inter-
nal Diagnostic
T183 Alert Compressor Protec-
tion Module 2 Inter-
nal Diagnostic
T184 Alarm Compressor Protec-
tion Module 1
T185 Alarm Compressor Protec-
tion Module 2
A200 Alarm Cooler Pump Inter-
lock Failed at
Start-Up
A201 Alarm` Cooler Pump Inter-
lock Opened
Unexpectedly
A202 Alarm Cooler Pump Inter-
lock Closed When
Pump OFF
T203 Alert Loss of Communica-
tion with the Slave
Chiller
T204 Alert Loss of Communica-
tion with the Master
Chiller
T205 Alert Master and Slave
Chiller with Same
Address
T206 Alert High Leaving Chilled
Water Temperature
A207 Alarm Cooler Freeze Protec-
tion
T210 Alert Winterization
Required
T950 Alert Loss of Communica-
tion with WSM
A951 Alarm Loss of Communica-
tion with Chillervisor
System Manager
(CSM)
T998 Alert Loss of Refrigerant
Flow in Circuit A.
T999 Alert Loss of Refrigerant
Flow in Circuit B.
Table 32  Alarm and Alert Codes (cont)
WHY WAS THIS
DESCRIPTION
ALARM GENERATED?
The Comfort Link™ Compres-
sor Protection Module has
generated an internal diag-
nostic alert.
The Comfort Link Compres-
sor Protection Module has
generated an internal diag-
nostic alert.
CCP has experienced too
many power cycles***
CCP has experienced too
many power cycles***
Interlock did not close within
5 minutes after chiller was
enabled
Interlock opened for at least
10 seconds during operation
and does not close within
5 min.
Interlock closed when pump
relay is off
The master chiller (when con-
figured) has lost communica-
tion with the slave chiller for
3 minutes.
The slave chiller (when con-
figured) has lost communica-
tion with the master chiller for
3 minutes.
The master chiller (when con-
figured) has determined that
its address is the same as the
slave address.
LCW read > LCW Delta Alarm
limit and total capacity is
100% and current LCW >
LCW reading 1 minute ago
Cooler EWT or LWT less than
freeze point. Freeze point is
the brine freeze setpoint +2 F
(1.1 C).
SCT<32 F in either circuit
No communications have
been received by the MBB
within 5 minutes of
transmission.
No communications have
been received by the MBB
within 5 minutes of last
transmission.
Between 40 and 90 seconds
of runtime, SST is less than
0° F (–18 C) and the rate of
change is negative (in 5 sec-
ond increments).
Between 40 and 90 seconds
of runtime, if SST is less than
0° F (–18 C) and the rate of
change is negative (in 5 sec-
ond increments).
ACTION TAKEN BY
CONTROL
Affected compressors
are shut down.
Affected compressors
are shut down.
Chiller shut down
Chiller shut down
Chiller shut down.
Pump turned off.
Chiller shut down.
Pump turned off.
Cooler pump remains
off. Unit prevented from
starting.
Master chiller runs as a
stand-alone chiller.
Slave chiller runs as a
stand-alone chiller.
Dual chiller control dis-
abled.
None.
Chiller shut down.
Leave Cooler pump on.
Turn Cooler pump on if
Chiller is off.
None
WSM forces removed.
Runs under own
control.
CSM forces removed.
Runs under own
control.
Circuit A compressor is
shut down.
Circuit B compressor is
shut down.
48
RESET
PROBABLE CAUSE
METHOD
Manual on Eliminate EMI sources around
CCP and the module, consider replace-
MBB ment of the CCP module if
alerts continue.
Manual on Eliminate EMI sources around
CCP and the module, consider replace-
MBB ment of the CCP module if
alerts continue.
Manual Loose connections, frequent
power interruptions.
Manual Loose connections, frequent
power interruptions.
Manual Failure of cooler pump, cooler
pump interlock, or flow switch
Manual Failure of cooler pump, cooler
pump interlock, or flow switch
Manual Failure of cooler pump relay or
interlock, welded contacts.
Cooler pump enabled but mot
controlling pump
Automatic Failed Slave MBB Module, wir-
ing error, loose connections,
wrong address, loss of control
power on slave chiller.
Automatic Failed Master MBB Module,
wiring error, loose connec-
tions, wrong address, loss of
control power on master chiller.
Automatic Master and Slave chiller must
have different addresses.
Automatic Building load greater than unit
capacity, low water/brine flow,
or compressor fault. Check for
other alarms or alerts.
Automatic† Faulty thermistor, low water
flow
Manual Winterization must be per-
formed to avoid cooler freeze-
up. After winterization has been
completed, configure W.DNE
Winterization Performed ( Con-
figuration Mode, Sub-mode
SERV) to YES to reset alert.
Automatic Failed module, wiring error,
failed transformer, loose con-
nection plug, wrong address
Automatic Wiring faulty or module failure
Manual Refrigerant restriction such as
closed suction service valve,
closed liquid line service valve,
faulty liquid line solenoid valve,
faulty EXV/Economizer opera-
tion, plugged refrigerant
strainer, closed discharge line
valve.
Manual Refrigerant restriction such as
closed suction service valve,
closed liquid line service valve,
faulty liquid line solenoid valve,
faulty EXV/Economizer opera-
tion, plugged refrigerant
strainer, closed discharge line
valve.