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Table 11 — CVC Primary and Secondary Messages and Custom Alarm/Alert Messages with Troubleshooting Guides (cont) D. PRE-START ALERTS: These alerts only delay start-up. When alert is corrected, the start-up will continue. No reset is necessary. PRIMARY MESSAGE SECONDARY MESSAGE ALARM MESSAGE PRIMARY CAUSE PRESTART ALERT STARTS LIMIT EXCEEDED 100->Excessive compressor starts (8 in 12 hours) PRESTART ALERT HIGH BEARING TEMPERATURE 101->Comp Thrust Bearing Temp [VALUE] exceeded limit of [LIMIT]*. PRESTART ALERT HIGH MOTOR TEMPERATURE 102->Comp Motor Winding Temp [VALUE] exceeded limit of [LIMIT]*. PRESTART ALERT HIGH DISCHARGE TEMP 103->Comp Discharge Temp [VALUE] exceeded limit of [LIMIT]*. PRESTART ALERT LOW REFRIGERANT TEMP 104->Evaporator Refrig Temp [VALUE] exceeded limit of [LIMIT]*. PRESTART ALERT LOW OIL TEMPERATURE 105->Oil Sump Temp [VALUE] exceeded limit of [LIMIT]*. PRESTART ALERT HIGH CONDENSER PRESSURE 106->Condenser Pressure [VALUE] exceeded limit of [LIMIT]*. PRESTART ALERT LOW LINE VOLTAGE 107->Average Line Voltage [VALUE] exceeded limit of [LIMIT]*. PRESTART ALERT HIGH LINE VOLTAGE 108->Average Line Voltage [VALUE] exceeded limit of [LIMIT]*. PRESTART ALERT GUIDE VANE CALIBRATION 109->Actual Guide Vane Pos Calibration Required Before Start-Up STATE 100 Depress the RESET softkey if additional start is required. Reassess start-up requirements. 101 Check oil heater for proper operation. Check for low oil level, partially closed coil supply valves, clogged oil filters, etc. Check the sensor wiring and accuracy. Check configurable range in SETUP1 screen. 102 Check motor sensors for wiring and accuracy. Check motor cooling line for proper operation, or restrictions. Check for excessive starts within a short time span. Check configurable range in SETUP1 screen. 103 Allow discharge sensor to cool. Check for sensor wiring and accuracy. Check for excessive starts. Check configurable range in SETUP1 screen. 104 Check transducer wiring and accuracy. Check for low chilled fluid supply temperatures. Check refrigerant charge. 105 Check oil heater contactor/relay and power. Check oil level and oil pump operation. 106 Check transducer wiring and accuracy. Check for high condenser water temperatures. 107 Check voltage supply. Check voltage transformers. Consult power utility if voltage is low. 108 Check voltage supply. Check power transformers. Consult power utility if voltage is high. 109 Calibrate guide vane actuator in Control Test. *[LIMIT] is shown on the CVC as temperature, pressure, voltage, etc., predefined or selected by the operator as an override or an alert. [VALUE] is the actual pressure, temperature, voltage, etc., at which the control tripped. ADDITIONAL CAUSE/REMEDY E. START-UP IN PROGRESS PRIMARY MESSAGE STARTUP IN PROGRESS STARTUP IN PROGRESS STARTUP IN PROGRESS AUTORESTART IN PROGRESS AUTORESTART IN PROGRESS AUTORESTART IN PROGRESS F. NORMAL RUN PRIMARY MESSAGE RUNNING — RESET ACTIVE RUNNING — RESET ACTIVE RUNNING — RESET ACTIVE RUNNING — TEMP CONTROL RUNNING — TEMP CONTROL RUNNING — TEMP CONTROL RUNNING — DEMAND LIMITED RUNNING — DEMAND LIMITED RUNNING — DEMAND LIMITED RUNNING — DEMAND LIMITED RUNNING — DEMAND LIMITED RUNNING — TEMP CONTROL RUNNING — DEMAND LIMITED RUNNING —TEMP CONTROL CAUSE/REMEDY Chiller is starting. Time schedule is occupied. Chiller is starting. Remote contacts are enabled and closed. Chiller is starting. Chiller START/STOP in MAINSTAT manually forced to start. Chiller is starting after power failure. Time schedule is occupied. Chiller is starting after power failure. Remote contacts are enabled and closed. Chiller is starting after power failure. Chiller START/STOP on MAINSTAT manually forced to start. CAUSE/REMEDY Auto chilled water reset active based on external input. Auto chilled water reset active based on external input. Auto chilled water reset active based on cooler ∆T. Default method of temperature control. Entering Chilled Water (ECW) control enabled in TEMP_CTL screen Ramp Loading in effect. Use RAMP_DEM screen to modify. Ramp Loading in effect. Use RAMP_DEM screen to modify. Demand limit set point is less than actual demand. Demand limit is active based on external auto demand limit option. Demand limit is active based on control limit signal from CCN. Demand limit is active based on LOADSHED screen set-up. Hot gas bypass option is energized. See stall prevention in the control section. Active demand limit manually overridden on MAINSTAT table. Chiller is running under Ice Build temperature control. SECONDARY MESSAGE OCCUPIED MODE REMOTE CONTACT CLOSED START COMMAND IN EFFECT OCCUPIED MODE REMOTE CONTACT CLOSED START COMMAND IN EFFECT SECONDARY MESSAGE 4-20 mA SIGNAL REMOTE TEMP SENSOR CHW TEMP DIFFERENCE LEAVING CHILLED WATER ENTERING CHILLED WATER TEMPERATURE RAMP LOADING BY DEMAND RAMP LOADING BY LOCAL DEMAND SETPOINT BY 4-20 mA SIGNAL BY CCN SIGNAL BY LOADSHED/REDLINE HOT GAS BYPASS BY LOCAL SIGNAL ICE BUILD MODE 79PDF Image | 19XR,XRV Hermetic Centrifugal Liquid Chillers 50/60 Hz With PIC II Controls and HFC-134a
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