Carrier AquaEdge 23XRV Start-Up, Operation And Maintenance Instructions Manual page 112

J. CHILLER ALERTS (cont)
STATE PRIMARY MESSAGE
162 SENSOR ALERT
LOSS OF
163
COMMUNICATION
164 SYSTEM ALERT
AUTORESTART
165
PENDING
AUTORESTART
166
PENDING
168 SENSOR ALERT

169 MACHINE ALERT

170 MACHINE ALERT
*[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.
519
Table 19 — ICVC Primary and Secondary Messages and
Custom Alarm/Alert Messages with Troubleshooting Guides (cont)
SECONDARY
MESSAGE
HIGH DISCHARGE
TEMP
WITH WSM
HIGH OIL
PRESSURE
VFD COMMUNICATIONS
FAULT
VFD COMMUNICATIONS
FAULT
HUMIDITY
SENSOR INPUT
CONDENSER LIQUID LEVEL
LOW
CONDENSER LIQUID LEVEL
HIGH
ALARM MESSAGE
PRIMARY CAUSE
162->Comp Discharge Check position of condenser isolation valve.
Temp [VALUE] Exceeded Check COMP DISCHARGE ALERT setting in
Limit of [LIMIT]* SETUP1 screen.
See Table 5.
Check COMP DISCHARGE TEMP sensor
resistance or voltage drop.
Check for proper condenser liquid flow and
temperature.
Check for proper wiring.
Check for fouled tubes, plugged strainers,
or noncondensables in the refrigerant.
163->WSM Cool Communications interrupted between
Source - Loss of supervisory component and equipment
Communication component of WSM (Water System Manager).
Check settings in WSMDEFME screen.
Check CCN communications link with WSM.
Check supervisory part of WSM.
164->High Oil Pressure See Table 5.
[VALUE], Check Oil Check oil pressure regulator isolation valve.
Regulator and Valves Check oil pressure regulator.
Check for bent oil lines.
Check Oil Sump Pressure and Oil Pressure
Leaving filter transducer resistances or
voltage drops.
Check OIL PRESSURE DELTA P wiring to CCM.
Check for debris in Compressor Inlet Bearing
Oil Orifice Strainers.
Normal alert if chiller was charged and started
within a few hours of pulling dehydration vacuum
with oil heater on.
165-> Loss of DPI Comm Check that the gateway board is properly con-
With VFD Gateway, Check nected to the DPI. Check ribbon cable. Make sure
VFG to VFD Comm both boards have power to them.
166-> Loss of SIO Comm Check the SIO communication cable from the CCM
With VFD Gateway; Check board to the power panel, then the cable from the
VFG module and Power power panel to the VFD gateway. Check power to
the VFD (main circuit breaker may be tripped)
168->Sensor Fault: See Table 5.
Check Humidity Humidity Sensor Input voltage is outside of
Sensor Input 0.5 V to 4.5 V range.
Check Humidity Sensor wiring to CCM terminals
J3-7, J3-9, and J4-10.
Check Humidity Sensor Input in Controls
Test screen.
Check resistance 4.3 kohm load resistor
between CCM J3-7 and J3-8.
169->Sensor Fault: Check EXV operation.
Condenser Liquid Level
Low
170->Sensor Fault: Check EXV operation.
Condenser Liquid Level
High
112
ADDITIONAL
CAUSE/REMEDY