110
Table 16 — ICVC Primary and Secondary Messages and
Custom Alarm/Alert Messages with Troubleshooting Guides (cont)
J. CHILLER ALERTS (cont)
*[LIMIT] is shown on the ICVC as the temperature, pressure, voltage, etc., set point predefined or selected by the operator as an override, alert, or alarm condition.
[VALUE] is the actual pressure, temperature, voltage, etc., at which the control tripped. "Exceeded Limit" in Alarm or Alert messages may mean the value is above or
below a threshold
.
STATE
PRIMARY
MESSAGE
SECONDARY
MESSAGE
PRIMARY CAUSE
ADDITIONAL
CAUSE/REMEDY
154
POTENTIAL
FREEZE-UP
COND PRESS/
TEMP TOO LOW
154->Condenser freeze up pre-
vention
The chiller is not in Pumpdown Mode and the CONDENSER REFRIG
TEMP is less than the CONDENSER FREEZE POINT. The CON-
DENSER PRESSURE transducer is reading a pressure that could
freeze the condenser tubes. Check CONDENSER FREEZE POINT in
SETUP1 screen.
Check for condenser refrigerant leaks. Check CONDENSER PRES-
SURE transducer and wiring to CCM J2-4 through J2-6. Check Con-
denser Water Temperature sensors and wiring to CCM J4. Place the
chiller in PUMPDOWN mode if the vessel is evacuated. Condenser
water too cold or chiller shut down with brine below 32 F in cooler so
equalization temperature in chiller approached 32 F.
155
OPTION SENSOR
FAULT
REMOTE RESET
SENSOR
155->Sensor Fault/Option Dis-
abled: Remote Reset Sensor
Type 2 Temperature Reset is Enabled and Remote Temperature Reset
sensor is out of range. Check ENABLE RESET TYPE and TEMPERA-
TURE RESET settings in TEMP_CNTL screen. Check Remote Tem-
perature Reset sensor resistance or voltage drop.
Check for proper wiring to CCM J4-13 and J4-14.
156
OPTION SENSOR
FAULT
AUTO CHILLED
WATER RESET
156->Sensor Fault/Option Dis-
abled: Auto Chilled Water Reset
Type 1 Temperature Reset is Enabled and Auto Chilled Water Reset
input on CCM J5-3 and J5-4 is < 2 mA. Check ENABLE RESET TYPE
and TEMPERATURE RESET settings in TEMP_CNTL screen. Confirm
that Auto Chilled Water Reset input is between 4 mA and 20 mA. Con-
firm that wiring to CCM J5-3 and J5-4 is not grounded.
157
OPTION SENSOR
FAULT
AUTO DEMAND
LIMIT INPUT
157->Sensor Fault/Option Dis-
abled: Auto Demand Limit Input
20mA DEMAND LIMIT OPT is Enabled, Ice Build is not Active, and Auto
Demand Limit Input on CCM J5-1 and J5-2 is < 2 mA. Check 20 mA
DEMAND LIMIT OPT and DEMAND LIMIT AT 20 mA in RAMP_DEM
screen. Confirm that Auto Demand Limit Input is between 4 mA and 20
mA. Confirm that wiring to CCM J5-1 and J5-2 is not grounded.
158
SENSOR ALERT
SPARE TEM-
PERATURE #1
158->Spare Temperature #1
[VALUE] exceeded limit of
[LIMIT].*
Check component that SPARE TEMPERATURE #1 is monitoring.
Check SPARE TEMP #1 ENABLE and SPARE TEMP #1 LIMIT in SET-
UP1 screen. Check SPARE TEMPERATURE #1 sensor resistance or
voltage drop. Check SPARE TEMPERATURE #1 wiring to CCM J4-25
and J4-26.
159
SENSOR ALERT
SPARE TEM-
PERATURE #2
159->Spare Temperature #2
[VALUE] exceeded limit of
[LIMIT].*
Check component that SPARE TEMPERATURE #2 is monitoring.
Check SPARE TEMP #2 ENABLE and SPARE TEMP #2 LIMIT in SET-
UP1 screen. Check SPARE TEMPERATURE #2 sensor resistance or
voltage drop. Check SPARE TEMPERATURE #2 wiring to CCM J4-27
and J4-28.
160
Not Used
Not Used
160->Not Used
161
LOSS OF
COMMUNICATION
WITH WSM
161->WSM Cool Source - Loss of
Communication
Check settings in WSMDEFME screen. Check CCN communications
link with WSM (Water System Manager) Module. Check Supervisory
Part of WSM.
162
SENSOR ALERT
EVAPORATOR
APPROACH
162->Evaporator Approach
[VALUE] Exceeded Limit of
[LIMIT}*
Check EVAP APPROACH ALERT setting in SETUP1 screen. Check
Evaporator Water Flow. Check EVAP REFRIG LIQUID TEMP and
LEAVING CHILLED WATER temperature sensor resistances and volt-
age drop. Check EVAP REFRIG LIQUID TEMP and LEAVING CHILLED
WATER temperature sensor wiring to the J4 CCM terminal block. Check
for oil loss or low refrigerant charge. Check oil reclaim line isolation
valves and strainers. Confirm that the optional refrigerant Liquid Line Iso-
lation Valve is open. Check for float valve operation and for refrigerant
stacking in the condenser. Check chilled water valves and strainers.
Check for air in the evaporator waterbox or division plate bypass. Check
for fouled tubes. Confirm that the oil reclaim system is working.
163
SENSOR ALERT
CONDENSER
APPROACH
163->Condenser Approach
[VALUE] Exceeded Limit of
[LIMIT]*
Check COND APPROACH ALERT setting in SETUP1 screen. Check
Condenser Water Flow. Check CONDENSER PRESSURE transducer
and LEAVING CONDENSER WATER temperature sensor resistance or
voltage drop. Check condenser shell temperature against condenser
pressure measured with a refrigerant gage for evidence of non-conden-
sibles in refrigerant charge. Check for condenser waterbox division plate
bypass. Check CONDENSER PRESSURE transducer and LEAVING
CONDENSER WATER sensor wiring to the CCM. Check for air in the
condenser waterbox. Confirm that the condenser tubes are not fouled.
164
VFD SPEED
ALERT
LOW VFD
SPEED
164->Actual VFD Speed exceeded
limit of Target VFD Speed -10%
ACTUAL VFD SPEED in COMPRESS screen must be at least 90% of
TARGET VFD SPEED. Check wiring and calibration of 4 - 20 mA speed
control signal from ISM J8-1 and J8-2 to the VFD. Check VFD configura-
tion parameters, jumpers, and dip switch settings.
165
MACHINE ALERT
HIGH COND
WATER FLOW
165->High Flow: Condenser Water
Delta P [VALUE] Exceeded Limit of
[LIMIT]*
COND HI FLOW ALARM OPT is disabled and CONDENSER WATER
DELTA P has exceeded configured limit. Check FLOW DELTA P DIS-
PLAY and COND HI FLOW DEL P LIMIT in SETUP1 screen. Check
optional condenser water pressure transducer wiring and accuracy. Con-
firm that 5 V reference signal is available between CCM J3-19 and J3-21
and J3-22 and J3-24. Check for disconnected, grounded, or shorted wir-
ing. If pressure transducers are not installed, check for presence of
resistors and jumpers CCM terminals J3-19 through J3-24. See Chiller
Controls Schematic if flow switches are used.
Summary of Contents for AquaEdge 19XR series
Page 69: ...69 Fig 33 19XR Leak Test Procedures a19 1625 ...
Page 154: ...154 Fig 64 Benshaw Inc Wye Delta Unit Mounted Starter Wiring Schematic Low Voltage a19 1873 ...
Page 161: ...161 Fig 69 Typical Low Voltage Variable Frequency Drive VFD Wiring Schematic 575 v ...
Page 162: ...162 Fig 69 Typical Low Voltage Variable Frequency Drive VFD Wiring Schematic 575 v cont ...
Page 186: ...186 APPENDIX B LEAD LAG WIRING 19XR Lead Lag Schematic Series Cooler Flow a19 1655 ...
Page 187: ...187 APPENDIX B LEAD LAG WIRING cont 19XR Lead Lag Schematic Parallel Cooler Flow a19 1717 ...