Carrier 19XL specifications LOW Chilled Water

Page 70

Table 9 Ð LID Primary and Secondary Messages and Custom Alarm/Alert Messages

with Troubleshooting Guides (cont)

F. START-UP FAILURES: This is an alarm condition. A manual reset is required to clear.

PRIMARY MESSAGE

SECONDARY MESSAGE

ALARM MESSAGE/PRIMARY CAUSE

ADDITIONAL CAUSE/REMEDY

FAILURE TO START

 

OILPD [VALUE] exceeded limit of

Check for closed oil supply valves. Check

LOW OIL PRESSURE

oil ®lter. Check for low oil temperature.

[LIMIT]*. Check oil pump system.

 

 

Check transducer accuracy.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check for excessive refrigerant in oil sump.

FAILURE TO START

 

OILPD [VALUE] exceeded limit of

Run oil pump manually for 5 minutes.

OIL PRESS SENSOR FAULT

Check transducer calibration. Check cooler

[LIMIT]*. Check oil pressure sensor.

 

 

pressure transducer calibration. Check

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

wiring. Replace transducer if necessary.

FAILURE TO START

LOW CHILLED WATER

EVFL Evap Flow Fault: Check water

Check wiring to ¯ow switch. Check through

FLOW

pump/¯ow switch.

Control Test for proper switch operation.

 

FAILURE TO START

LOW CONDENSER

CDFL Cond. Flow Fault: Check water

Check wiring to ¯ow switch. Check through

WATER FLOW

pump/¯ow switch.

Control Test for proper switch operation.

 

FAILURE TO START

STARTER FAULT

STR

 

 

 

FLT Starter Fault: Check Starter

A starter protective device has faulted.

 

 

 

Check starter for ground fault, voltage trip,

for Fault Source.

 

 

temperature trip, etc.

 

 

 

 

 

 

 

 

 

 

 

 

 

FAILURE TO START

STARTER OVERLOAD TRIP

STR

 

 

 

FLT Starter Overload Trip:

Reset overloads before restart.

Check amps calibration/reset overload.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check voltage supply. Check transformers

FAILURE TO START

LINE VOLTAGE DROPOUT

V

 

 

 

P Single-Cycle Dropout Detected:

for supply. Check with utility if voltage

 

 

 

supply is erratic. Monitor must be installed

Check voltage supply.

 

 

to con®rm consistent, single-cycle drop-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

outs. Check low oil pressure switch.

 

 

 

 

 

 

 

 

 

 

 

 

 

Check the high-pressure switch. Check for

 

 

High Condenser Pressure [OPEN]*:

proper condenser pressures and con-

 

 

denser water¯ow. Check for fouled tubes.

 

 

Check switch, oil pressure contact, and

 

 

Check the 2C aux contact and the oil

 

 

water temperature/¯ow.

 

HIGH CONDENSER

pressure switch in the power panel. This

FAILURE TO START

 

 

 

 

 

 

 

 

 

 

 

PRESSURE

 

 

 

 

 

 

 

 

 

 

 

alarm is not caused by the transducer.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

High Condenser Pressure [VALUE]*:

Check water ¯ow in condenser. Check for

 

 

fouled tubes. Transducer should be

 

 

Check switch, water ¯ow, and

 

 

checked for accuracy. This alarm is not

 

 

transducer.

 

 

caused by the high pressure switch.

 

 

 

 

 

 

 

 

 

 

 

 

 

FAILURE TO START

EXCESS ACCELERATION

CA

 

 

 

 

 

 

P Excess Acceleration:

Check that guide vanes are closed at

 

 

 

 

start-up. Check starter for proper operation.

TIME

Check guide vane closure at start-up.

 

Reduce unit pressure if possible.

 

 

 

 

 

 

 

 

 

 

 

 

 

FAILURE TO START

STARTER TRANSITION

RUN

 

 

 

AUX Starter Transition Fault:

Check starter for proper operation.

FAULT

Check 1CR/1M/Interlock mechanism.

Run contact failed to close.

 

FAILURE TO START

1CR AUX CONTACT FAULT

1CR

 

 

AUX Starter Contact Fault:

Check starter for proper operation.

Check 1CR/1M aux. contacts.

Start contact failed to close.

 

 

 

 

CA

 

 

 

 

 

P Motor Amps Not Sensed:

Check for proper motor amps signal to

FAILURE TO START

MOTOR AMPS NOT SENSED

 

SMM. Check wiring from SMM to current

 

 

 

Check motor load signal.

transformer. Check main motor circuit

 

 

 

 

 

 

 

 

 

 

 

 

 

breaker for trip.

 

 

 

 

 

 

 

 

 

 

 

 

 

Pressures at transducers indicate another

FAILURE TO START

CHECK REFRIGERANT

Current Refrigerant Properties

refrigerant type in Control Test. Make sure

Abnormal Ð

to access the ATTACH TO NETWORK

TYPE

 

Check Selection of refrigerant type

DEVICE table after changing refrigerant

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

type.

 

 

 

 

 

 

 

 

 

 

 

 

 

The oil pressure differential switch is open

 

 

Low Oil Pressure [LIMIT]*:

when the compressor tried to START.

FAILURE TO START

 

Check the switch for proper operation.

LOW OIL PRESSURE

Check oil pressure switch/pump

Also, check the oil pump interlock (2C aux)

 

 

and 2C aux.

 

 

in the power panel and the high condenser

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

pressure switch.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*[LIMIT] is shown on the LID as the temperature, pressure, voltage, etc., set point prede®ned 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. [OPEN] indicates that an input circuit is open.

NOTE: See Legend on page 68.

70

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Contents Start-Up, Operation, and Maintenance Instructions Safety ConsiderationsContents Contents Introduction Abbreviations and ExplanationsRefrigeration Cycle Chiller FamiliarizationMOTOR/OIL Refrigeration Cooling Cycle 19XL Rear View Condenser In/Out Temperature Sensors Take-Apart Rabbet Fit ConnectorCooler In/Out Temperature Sensors Cooler Pressure Schrader FittingLubrication Cycle Refrigerant Motor Cooling and Oil Cooling CyclesLubrication System Starting Equipment Unit-Mounted Solid-State Starter OptionalMajor PIC Components Panel Locations DenitionsControls PIC Component Panel19XL Controls and Sensor Locations Pressure Transducer, TypicalPower Panel with Options Control and OIL Heater Voltage Selector S1General LID Operation and Menus FigSelect − Example of Point Status Screen Status01 Override OperationsExample of Time Schedule Operation Screen 19XL Menu Structure 19XL Service Menu Structure 19XL Service Menu Structure Setpoint Example of Set Point ScreenExample 1 Ð STATUS01 Display Screen Description Range Units Reference Point Name Alarm HistoryLID Screens Menu Status SelectExample 4 Ð Setpoint Display Screen Example 2 Ð STATUS02 Display ScreenExample 3 Ð STATUS03 Display Screen MenuECW Control Option Example 5 Ð Configuration Config Display ScreenExample 6 Ð LEAD/LAG Configuration Display Screen ICE Build TerminationExample 7 Ð SERVICE1 Display Screen Example 9 Ð SERVICE3 Display Screen Example 8 Ð SERVICE2 Display ScreenSpare Alert Enable Menu ServiceDischarge Temperature Example 10 Ð Maintenance MAINT01 Display ScreenExample 11 Ð Maintenance MAINT02 Display Screen Bearing TemperatureExample 13 Ð Maintenance MAINT04 Display Screen Example 12 Ð Maintenance MAINT03 Display ScreenDescription RANGE/STATUS Units Reference Point Name PIC System Functions Page Protective Safety Limits and Control Settings Capacity Overrides Page Page Hgbp Lead/Lag ControlECW Hot Gas BypassPage Ice Build Control Cent CapacityPage Example of Attach to Network Device Screen To LOG onSTART-UP/SHUTDOWN/RECYCLE Sequence FigRecycle Restart Delta T Job Data Required Using the Optional Storage Tank and PumpoutBefore Initial START-UP Equipment Required19XL Leak Test Procedures Page Ð HCFC-22 Pressure Ð Temperature F Ð HCFC-22 Pressure Ð Temperature CÐ HFC-134a Pressure Ð Temperature C Ð HFC-134a Pressure Ð Temperature FTemperature Pressure Page Inspect Wiring Check Optional Pumpout Compressor Water PipCheck Starter MECHANICAL-TYPE StartersBenshaw, Inc. Solid-State Starter Power Stack BENSHAW, INC. SOLID-STATE StarterPower Up the Controls and Check the Oil Heater Set Up Chiller Control CongurationLoad Surge Prevention Occurs TOO Soon Occurs TOO Late Amps Correction Factors For 19XL Motors Volt Motor CodeControl Test Menu Functions Charge Refrigerant into Chiller19XL Chiller Equalization Without PUMP- OUT Unit Tests to be Devices Tested PerformedCooler Refrigerant Charges19XL Total Refrigerant Charge SizeDry Run to Test Start-Up Sequence Initial START-UPCheck Rotation Operating Instructions Check Oil Pressure and Compressor StopCalibrate Motor Current Operator DutiesTo Stop the Chiller Plant Transfer Refrigerant from Storage Tank to Chiller Pumpout and Refrigerant Transfer ProceduresOperating the Optional Pumpout Compressor TstatChillers with Isolation Valves Transfer the Refrigerant from Chiller to Storage TankTest After Service, Repair, or Major Leak Ð If General MaintenanceReturn Refrigerant to Normal Operating Conditions Weekly Maintenance Guide Vane Actuator LinkageCheck Safety and Operating Controls Monthly Scheduled MaintenanceTo Change the OIL Compressor Bearing and Gear Mainten Inspect the Heat Exchanger TubesOptional Pumpout System Controls Troubleshooting Guide MAINT03 MAINT01MAINT02 MAINT04Shutdown with ON/OFF/RESET-OFF Timing OUT or Timed OUTNormal or AUTO.-RESTART Recycle ShutdownAutorestart in Progress LOW Chilled Water Normal RUN with RESET, TEMPERATURE, or Demand Compressor Jumpstart and Refrigerant ProtectionOUT-OF-RANGE Sensor Failures Normal RUN Overrides Active AlertsLimited Chiller Protect Limit Faults Protective LimitChiller Alerts Spare Sensor Alert MessagesOther PROBLEMS/MALFUNCTIONS DESCRIPTION/MALFUNCTION Probable CAUSE/REMEDYÐ Thermistor Temperature F vs Resistance/Voltage Drop Temperature Voltage Resistance DropÐ Thermistor Temperature C vs Resistance/Voltage Drop Module Address Control ModulesInput Options Module Processor Module Psio Fig Starter Management Module SMM FigOptions Module Installation Switch Options Setting ModuleTypical Benshaw, Inc. Solid-State Starter internal View Page Page RV1 Benshaw, Inc. Solid-State Starter Troubleshooting GuideProblem Probable Causes Area of Correction SCRCooler Heat Exchanger DataAdditional Data for Marine Waterboxes CondenserCondensers Waterbox Cover WeightsCoolers 1034 kPaCompressor Weights Compressor/Motor WeightsOptional Pumpout System Electrical Data Compressor Fits and Clearances Ft-lb Compressor Assembly TorquesDescription Torque ``ZComm CLRCOM EXTPage CLR Page Chiller Power Panel, Starter Assembly Motor Wiring Schematic Chiller Power Panel, Starter Assembly Motor Wiring Schematic GFR PMRPOT HPSTypical Wye-Delta Unit Mounted Starter Wiring Schematic Index Index Copyright 1996 Carrier Corporation

19XL specifications

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