Carrier 19XRV Start-up, Operation And Maintenance Instructions Manual

Also see for AquaEdge 19XRV series: Start-up, operation and maintenance instructions Start-up and service instructions Installation instructions Start-up, operation and maintenance instructions Start-up and service instructions

Contents

64Table 10 - Alarm and alert messages (continued)J. CHILLER ALERTS (continued)IVVCFAULTSTATEPRIMARY MESSAGE SECONDARY MESSAGE ALARM MESSAGEPRIMARY CAUSEADDITIONAL CAUSE/REMEDY161 LOSS OFCOMMUNICATIONWITH WSM 163->WSM Cool Source -Loss of CommunicationCommunications interrupted between supervisorycomponent and equipment component of WSM (WaterSystem Manager).Check settings in WSMDEFME screen.Check CCN communications link with WSM.Check supervisory part of WSM.162 SENSOR ALERT EVAPORATOR APPROACH 160->Evaporator Approach[VALUE] Exceeded Limit of[LIMIT]*Check that refrigerant charge level is adequate, waterboxdivision plate gaskets are sealing, evapora¬tor tubes arenot fouled and that oil reclaim system is working.Check sensor resistance or voltage drop.Check for proper wiring.Check Evap Approach Alert setting in SETUP1 screen.163 SENSOR ALERT CONDENSER APPROACH 161->Condenser Approach[VALUE] Exceeded Limit of[LIMIT]*Check sensors resistance or voltage drop.Check for proper wiring.Check Cond Approach Alert setting in SETUP1 screen.Check for noncondensable gas in the condenser.Check that the condenser tubes are not fouled.164 VFD SPEED ALERT LOW VFD SPEED 164->Actual VFD Speedexceeded limit of Target VFDSpeed –10%.Actual VFD Speed on COMPRESS screen must be atleast 90% of Target VFD Speed.165 AUTORESTART PENDING LOW DC BUS VOLTAGE 165->Low DC Bus Voltage:[VALUE] Exceeded Limit of[LIMIT]*Verify phase to phase and phase to ground line voltage.166 AUTORESTART PENDING HIGH DC BUS VOLTAGE 166->High DC Bus Voltage:[VALUE] Exceeded Limit of[LIMIT]*Verify phase to phase and phase to ground line voltage.Monitor AC line for high transient voltage conditions.167 SENSOR ALERT HIGH DISCHARGE TEMP 167->Comp Discharge Temp[VALUE] Exceeded Limit of[LIMIT]*Check sensor resistance or voltage drop.Check for proper wiring.Check for excessive starts.Check Comp Discharge Alert setting in SETUP1 screen.168 SENSOR ALERT HUMIDITY SENSOR INPUT 168->Sensor Fault: CheckHumidity Sensor InputCheck humidity sensor wiring on CCM connectors J3 andJ5. CCM switch SW2-1 must be in “OFF” position.Check Humidity Sensor Input in Controls Test.* [LIMIT] is shown on the ICVC as the temperature, pressure, voltage, etc., setpoint 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.