Sterling 30RA010-055 manual Alarm and Alert Codes

Page 53
Table 29 — Alarm and Alert Codes

Alarms and Alerts — These are warnings of abnormal or fault conditions, and may cause either one circuit or the whole unit to shut down. They are assigned code numbers as described in Table 29.

Automatic alarms will reset without operator intervention if the condition corrects itself. The following method must be used to reset manual alarms:

Before resetting any alarm, first determine the cause of the alarm and correct it. Enter the Alarms mode indicated by the LED on the side of the Scrolling Marquee Display. Press

ENTER and Manual backgroundManual backgroundManual background until the sub-menu item RCRN “RESET

ALL CURRENT ALARMS” is displayed. Press ENTER . The control will prompt the user for a password, by displaying PASS and WORD. Press ENTER to display the default pass- word, 1111. Press ENTER for each character. If the password has been changed, use the arrow keys to change each individu- al character. Toggle the display to “YES” and press ENTER . The alarms will be reset.

Table 29 — Alarm and Alert Codes

ALARM/

ALARM

 

WHY WAS THIS

ACTION TAKEN

RESET

PROBABLE

ALERT

OR

DESCRIPTION

ALARM

BY CONTROL

METHOD

CAUSE

CODE

ALERT

 

GENERATED?

 

 

 

 

 

 

 

 

 

 

 

T051

Alert

Circuit A, Compressor 1

Compressor feedback signal

Compressor A1 shut

Manual

High-pressure switch open,

 

 

Failure

does not match relay state

down.

 

faulty auxiliary contacts, loss

 

 

 

 

 

 

of condenser air, liquid

 

 

 

 

 

 

valve closed, filter drier

 

 

 

 

 

 

plugged, non-condensables,

 

 

 

 

 

 

operation beyond capability.

 

 

 

 

 

 

 

T052

Alert

Circuit A, Compressor 2

Compressor feedback signal

Compressor A2 shut

Manual

High-pressure switch open,

 

 

Failure

does not match relay state

down.

 

faulty auxiliary contacts, loss

 

 

 

 

 

 

of condenser air, liquid

 

 

 

 

 

 

valve closed, filter drier

 

 

 

 

 

 

plugged, non-condensables,

 

 

 

 

 

 

operation beyond capability.

T055

Alert

Circuit B, Compressor 1

Compressor feedback signal

Compressor B1 shut

Manual

High-pressure switch open,

 

 

Failure

does not match relay state

down.

 

faulty auxiliary contacts, loss

 

 

 

 

 

 

of condenser air, liquid

 

 

 

 

 

 

valve closed, filter drier

 

 

 

 

 

 

plugged, non-condensables,

 

 

 

 

 

 

operation beyond capability.

T056

Alert

Circuit B, Compressor 2

Compressor feedback signal

Compressor B2 shut

Manual

High-pressure switch open,

 

 

Failure

does not match relay state

down.

 

faulty auxiliary contacts, loss

 

 

 

 

 

 

of condenser air, liquid

 

 

 

 

 

 

valve closed, filter drier

 

 

 

 

 

 

plugged, non-condensables,

 

 

 

 

 

 

operation beyond capability.

 

 

 

 

 

 

 

A060

Alarm

Cooler Leaving Fluid

Thermistor outside range of

Chiller shutdown

Automatic

Thermistor failure, damaged

 

 

Thermistor Failure (T1)

–40 to 245 F (–40 to 118 C)

immediately

 

cable/wire or wiring error.

 

 

 

 

 

 

 

A061

Alarm

Cooler Entering Fluid

Thermistor outside range of

Chiller shutdown

Automatic

Thermistor failure, damaged

 

 

Thermistor Failure (T2)

–40 to 245 F (–40 to 118 C)

immediately

 

cable/wire or wiring error.

 

 

 

 

 

 

 

T068

None

Circuit A Return Gas Thermistor Failure

If return gas sensors are

None

Automatic

Thermistor failure, damaged

 

 

 

enabled (RG.EN) and

 

 

cable/wire or wiring error.

 

 

 

thermistor is outside range of

 

 

 

 

 

 

–40 to 245 F (–40 to 118 C)

 

 

 

T069

None

Circuit B Return Gas Thermistor Failure

If return gas sensors are

None

Automatic

Thermistor failure, damaged

 

 

 

enabled (RG.EN) and

 

 

cable/wire or wiring error.

 

 

 

thermistor is outside range of

 

 

 

 

 

 

–40 to 245 F –40 to 118 C)

 

 

 

T073

Alert

Outside Air Thermistor

Thermistor outside range of

Temperature reset

Automatic

Thermistor failure, damaged

 

 

Failure (T9)

–40 to 245 F (–40 to 118 C)

disabled. Chiller runs

 

cable/wire or wiring error.

 

 

 

 

under normal control/set

 

 

 

 

 

 

points. When capacity

 

 

 

 

 

 

reaches 0, cooler/pump

 

 

 

 

 

 

heaters are energized.

 

 

T074

Alert

Space Temperature

Thermistor outside range of

Temperature reset

Automatic

Thermistor failure, damaged

 

 

Thermistor Failure (T10)

–40 to 245 F (–40 to 118 C)

disabled. Chiller runs

 

cable/wire or wiring error.

 

 

 

 

under normal control/set

 

 

 

 

 

 

points.

 

 

T077

Alert

Circuit A Saturated

Faulty expansion valve,

Circuit A shutdown after

Automatic

Faulty expansion valve or

 

 

Suction Temperature

suction pressure transducer

pumpdown complete.

 

suction pressure transducer

 

 

exceeds Cooler Leaving

or leaving fluid thermistor

 

 

(T5) or leaving fluid

 

 

Fluid Temperature

(T1).

 

 

thermistor (T1).

 

 

 

 

 

 

 

T078

Alert

Circuit B Saturated

Faulty expansion valve,

Circuit B shutdown after

Automatic

Faulty expansion valve or

 

 

Suction Temperature

suction pressure transducer

pumpdown complete

 

suction pressure transducer

 

 

exceeds Cooler Leaving

or leaving fluid thermistor

 

 

(T6) or leaving fluid

 

 

Fluid Temperature

(T1).

 

 

thermistor (T1).

T079

Alert

Lead/Lag LWT

Thermistor outside range of

Chiller runs as a stand

Automatic

Dual LWT thermistor failure,

 

 

Thermistor Failure

–40 to 245 F (–40 to 118 C)

alone machine

 

damaged cable/wire or

 

 

 

 

 

 

wiring error.

 

 

 

 

 

 

 

T090

Alert

Circuit A Discharge

Voltage ratio more than

Circuit A shut down

Automatic

Transducer failure, poor

 

 

Pressure Transducer Failure

99.9% or less than .5%.

 

 

connection to MBB, or wiring

 

 

 

 

 

 

damage/error.

T091

Alert

Circuit B Discharge

Voltage ratio more than

Circuit B shut down

Automatic

Transducer failure, poor

 

 

Pressure Transducer Failure

99.9% or less than .5%.

 

 

connection to MBB, or wiring

 

 

 

 

 

 

damage/error.

T092

Alert

Circuit A Suction

Voltage ratio more than

Circuit A shut down

Automatic

Transducer failure, poor

 

 

Pressure Transducer Failure

99.9% or less than .5%.

 

 

connection to MBB, or wiring

 

 

 

 

 

 

damage/error.

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Contents SAFETY CONSIDERATIONS GENERAL CONTENTSControl Module Communication MAJOR SYSTEM COMPONENTSSterlco Comfort Network SCN Interface — Table 1 — Unit SizesTable 5 - SCN Communication Bus Wiring Table 3 — Status SwitchesTable 2 — Thermistor Designations Table 4 - Output RelaysLEGEND FOR FIG. Page Page 30RA010-018AQUA SNAP Fig. 3 — Wiring Schematic 30RA010-018SEE NOTE SEE NOTE AQUA-SNAPLOW VOLTAGE CONTROL SCHEMATICFig. 3 - Wiring Schematic 30RA010-018cont 30RA022-030AQUA SNAP Fig. 4 - Wiring Schematic 30RA022-030AQUA-SNAPLOW VOLTAGE CONTROL SCHEMATIC Fig. 4 - Wiring Schematic 30RA022-030cont30RA032-040AQUA SNAP Fig. 5 — Wiring Schematic 30RA032-040AQUA-SNAPLOW VOLTAGE CONTROL SCHEMATIC Fig. 5 — Wiring Schematic 30RA032-040cont30RA042-055AQUA SNAP Fig. 6 — Wiring Schematic 30RA042-055AQUA-SNAPLOW VOLTAGE CONTROL SCHEMATIC Fig. 6 — Wiring Schematic 30RA042-055contESCAPEENTER Fig. 7 — Main Base BoardREMOTE CONTACT SW1 OFF ENABLE OFF SW2 ON MODEFig. 9 — Typical Space Temperature Sensor Wiring CEPL130351 Fig. 11 - Energy Management Module100/100 Fig. 12 — Deadband Multiplier Fig. 14 — 30RA Condenser Fan Sequence Fig. 13 — Operating Envelope forR-22Maneurop Compressor Cooling Set Point Select and control circuit power must be on Service Test See Table 11 — Both main powerTable 8 — Control Methods and Cooling Set Points Fig. 16 — Scrolling Marquee DisplayOptional Factory-InstalledHydronic Package — •Cooler Pump Control CPC Configuration, OPT1 ON Table 9 — Marquee Display Menu Structure Fig. 17 — Dual Chiller Thermistor LocationTable 10 — Run Status Mode and Sub-ModeDirectory SUB-MODE Table 12 - Temperature Mode and Sub-ModeDirectory Table 15 — Inputs Mode and Sub-ModeDirectory Table 13 — Pressure Mode and Sub-ModeDirectoryTable 14 — Set Point and Sub-ModeDirectory SUB-MODE Table 16 — Outputs Mode and Sub-ModeDirectoryKEYPAD DISPLAYKEYPAD SUB-MODEITEM DISPLAYKEYPAD SUB-MODEITEM DISPLAYTable 18 — Time Clock Mode and Sub-ModeDirectory PER.3 SUB-MODE Table 19 — Operating Mode and Sub-ModeDirectory Table 20 — Alarms Mode and Sub-ModeDirectoryITEM SUB-MODEKEYPAD ENTRY DISPLAYRSET DISP Table 23 — Operating Modes Table 25A — 4-20mA Reset Table 24 — Example of Reading and Clearing AlarmsTable 26B — Configuring Return Temperature Reset Temperature Control — No Reset Fig. 18 — Standard Chilled FluidFig. 19 — Outdoor-AirTemperature Reset Fig. 20 — Space Temperature ResetFig. 21B — Cooling Set Point 4 to 20 mA Fig. 21A — 4- to 20-mADemand LimitingTable 27 — Configuring Demand Limit TROUBLESHOOTINGand fluid tubing Table 28 — TroubleshootingRecommended that system be filled with an appro FU — Fuse GND — Ground Fig. 22 — Component Arrangement — 30RA010-030FU — Fuse GND — Ground Fig. 23 — Component Arrangement — 30RA032-040FU — Fuse GND — Ground Fig. 24 — Component Arrangement — 30RA042-055NOTES LEGEND Table 29 — Alarm and Alert Codes Table 29 - Alarm and Alert Codes cont ALARM Table 29 — Alarm and Alert Codes contALARM Table 29 — Alarm and Alert Codes contALARM Table 29 — Alarm and Alert Codes contCompressor Replacement Refer to Fig SERVICETable 30 - Unit Torque Specification Electronic ComponentsFig. 27 — Typical Compressor Mounting — All Sizes Fig. 28 — Compressor WiringFig. 29 — Compressor Location — 30RA010-030 Fig. 30 — Compressor Location — 30RA032-055Table 31 - Oil Charge Condenser Section and CoilsCheck Refrigerant Feed Components Fig. 31 — 30RA Access PanelsFig. 32 — Condenser-FanMounting Fig. 33 — Condenser-FanPosition Standard FanSwitch Fixed Table 32 — Factory Settings, High-PressureCompressor and Unit Protective Devices Check Unit SafetiesCOOLER FREEZE-UPPROTECTION TEMP TEMP For Thermistor T10 For Thermistor T10 Fig. 36 — Thermistor Connections to Main Base Board, J8 ConnectorFig. 35 — Fluid-SideTemperature Sensors T1 and T2 PROGRAMMING Mode •P51: SOFTWARE version Table 37 - Fault Codes•P50: FAULT HISTORY — Last 8 faults PARAMETERS Table 39 — Replacement Modules Minimum Loop Volume MAINTENANCEPRE-START-UP System CheckOperating Limitations Standard 30RA Units OPERATION SEQUENCETable 41 — Temperature Limits for SCN Tables A_UNIT General Unit Parameters APPENDIX ACIRCADIO Circuit A Discrete Inputs/Outputs CIRCA_AN Circuit A Analog ParametersOPTIONS Unit Parameters CIRCBDIO Circuit B Discrete Inputs/OutputsCIRCB_AN Circuit B Analog Parameters DISPLAY Marquee Display SETUP ALARMDEF Alarm Definition TableDUALCHIL Dual Chiller Configuration Settings BRODEFS Broadcast POC Definition TableOPTIONS2 Options 2 Configuration OPTIONS1 Options 1 ConfigurationSETPOINT SCHEDOVR Timed Override SetupRESETCON Temperature Reset and Demand Limit MAINTENANCE ALARMS: Maintenance DisplayUNIT DUALCHIL: Maintenance Display CURRMODS: Maintenance DisplayLOADFACT: Maintenance Display LEARNFNS Maintenance DisplayPM-STRN Maintenance Display PM-COIL:Maintenance DisplayPM-PUMP:Maintenance Display RUNTEST: Maintenance Display VERSIONS: Maintenance Display STRTHOUR Maintenance DisplayTESTMODE: Maintenance Display WSMDEFME: Maintenance Display AND MANUAL STARTERS FACTORY SETTINGS FOR COMPRESSOR, FAN, PUMPAPPENDIX B FACTORY SETTINGS FOR COMPRESSOR, FAN, PUMP AND MANUAL STARTERS contDataPort, DataLink, BAClink Object Definition APPENDIX CSETPOINT OPTIONSRemove and use for Job File I.Project Information START-UPCHECKLIST FOR 30RA LIQUID CHILLERII. Preliminary Equipment Check Design InformationStart and Operate Machine. Complete the Following III. Unit Start-UpCL-3 CL-4 Record Software Versions MODE — RUN STATUSCOMMENTS III.Unit Start-Upcont UNIT Configuration SettingsOPTIONS1 Options Configuration RSET Reset Configuration Settings OPTIONS2 Options ConfigurationIII.Unit Start-Upcont CL-6III.Unit Start-Upcont SLCT Setpoint and Ramp Load ConfigurationSETPOINT CL-7III.Unit Start-Upcont Service Test Mode and Sub-ModeDirectory
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