CL-3

OPERATING DATA:

RECORD THE FOLLOWING INFORMATION FROM THE PRESSURES AND TEMPERATURES MODES WHEN MACHINE IS IN A STABLE OPERATING CONDITION:

PRESSURE/TEMPERATURE
	CIRCUIT A			CIRCUIT B
DISCHARGE PRESSURE	DP.A		DP.B
SUCTION PRESSURE	SP.A		SP.B
SATURATED CONDENSING TEMP	SCT.A		SCT.B
SATURATED SUCTION TEMP	SST.A		SST.B
LIQUID LINE TEMPERATURE*
DISCHARGE LINE TEMPERATURE*
RETURN GAS TEMPERATURE*
*Readings taken with a digital thermometer.
COOLER EWT	EWT
COOLER LWT	LWT
OUTDOOR-AIR TEMPERATURE	OAT
CONTROL POINT	CTPT
PERCENT TOTAL CAPACITY	CAP
LEAD/LAG LEAVING FLUID	DLWT		(Dual Chiller Control Only)
Compressor Running Current — All readings taken at full load.
COMPRESSOR MOTOR CURRENT	L1	L2		L3
COMPRESSOR A1
COMPRESSOR A2
COMPRESSOR B1
COMPRESSOR B2
CONDENSER FAN MOTOR CURRENT	L1	L2		L3
FAN MOTOR 1
FAN MOTOR 2
FAN MOTOR 3
FAN MOTOR 4
COOLER PUMP MOTOR CURRENT	L1	L2		L3
COOLER PUMP 1
COOLER PUMP 2

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Contents

SAFETY CONSIDERATIONS GENERAL CONTENTS Table 1 — Unit Sizes MAJOR SYSTEM COMPONENTSControl Module Communication Sterlco Comfort Network SCN Interface — Table 4 - Output Relays Table 3 — Status SwitchesTable 5 - SCN Communication Bus Wiring Table 2 — Thermistor Designations LEGEND FOR FIG. Page Page 30RA010-018AQUA SNAP Fig. 3 — Wiring Schematic 30RA010-018 SEE NOTE SEE NOTE AQUA-SNAPLOW VOLTAGE CONTROL SCHEMATICFig. 3 - Wiring Schematic 30RA010-018cont 30RA022-030AQUA SNAP Fig. 4 - Wiring Schematic 30RA022-030 AQUA-SNAPLOW VOLTAGE CONTROL SCHEMATIC Fig. 4 - Wiring Schematic 30RA022-030cont 30RA032-040AQUA SNAP Fig. 5 — Wiring Schematic 30RA032-040 AQUA-SNAPLOW VOLTAGE CONTROL SCHEMATIC Fig. 5 — Wiring Schematic 30RA032-040cont 30RA042-055AQUA SNAP Fig. 6 — Wiring Schematic 30RA042-055 AQUA-SNAPLOW VOLTAGE CONTROL SCHEMATIC Fig. 6 — Wiring Schematic 30RA042-055cont MODE Fig. 7 — Main Base BoardESCAPEENTER REMOTE CONTACT SW1 OFF ENABLE OFF SW2 ON Fig. 9 — Typical Space Temperature Sensor Wiring CEPL130351 Fig. 11 - Energy Management Module 100/100 Fig. 12 — Deadband Multiplier Fig. 14 — 30RA Condenser Fan Sequence Fig. 13 — Operating Envelope forR-22Maneurop Compressor Cooling Set Point Select Fig. 16 — Scrolling Marquee Display Service Test See Table 11 — Both main powerand control circuit power must be on Table 8 — Control Methods and Cooling Set Points Optional Factory-InstalledHydronic Package — •Cooler Pump Control CPC Configuration, OPT1 ON Table 9 — Marquee Display Menu Structure Fig. 17 — Dual Chiller Thermistor Location Table 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 DISPLAY Table 16 — Outputs Mode and Sub-ModeDirectorySUB-MODE KEYPAD DISPLAY SUB-MODEKEYPAD ITEM DISPLAY SUB-MODEKEYPAD ITEM Table 18 — Time Clock Mode and Sub-ModeDirectory PER.3 SUB-MODE Table 19 — Operating Mode and Sub-ModeDirectory Table 20 — Alarms Mode and Sub-ModeDirectory DISPLAY SUB-MODEITEM KEYPAD ENTRY RSET DISP Table 23 — Operating Modes Table 25A — 4-20mA Reset Table 24 — Example of Reading and Clearing Alarms Table 26B — Configuring Return Temperature Reset Fig. 20 — Space Temperature Reset Fig. 18 — Standard Chilled FluidTemperature Control — No Reset Fig. 19 — Outdoor-AirTemperature Reset Fig. 21B — Cooling Set Point 4 to 20 mA Fig. 21A — 4- to 20-mADemand Limiting Table 27 — Configuring Demand Limit TROUBLESHOOTING and fluid tubing Table 28 — TroubleshootingRecommended that system be filled with an appro FU — Fuse GND — Ground Fig. 22 — Component Arrangement — 30RA010-030 FU — Fuse GND — Ground Fig. 23 — Component Arrangement — 30RA032-040 FU — Fuse GND — Ground Fig. 24 — Component Arrangement — 30RA042-055 NOTES LEGEND Table 29 — Alarm and Alert Codes Table 29 - Alarm and Alert Codes cont ALARM Table 29 — Alarm and Alert Codes cont ALARM Table 29 — Alarm and Alert Codes cont ALARM Table 29 — Alarm and Alert Codes cont Electronic Components SERVICECompressor Replacement Refer to Fig Table 30 - Unit Torque Specification Fig. 30 — Compressor Location — 30RA032-055 Fig. 28 — Compressor WiringFig. 27 — Typical Compressor Mounting — All Sizes Fig. 29 — Compressor Location — 30RA010-030 Table 31 - Oil Charge Condenser Section and Coils Fig. 33 — Condenser-FanPosition Standard Fan Fig. 31 — 30RA Access PanelsCheck Refrigerant Feed Components Fig. 32 — Condenser-FanMounting Check Unit Safeties Table 32 — Factory Settings, High-PressureSwitch Fixed Compressor and Unit Protective Devices COOLER 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 System Check MAINTENANCEMinimum Loop Volume PRE-START-UP Operating Limitations Standard 30RA Units OPERATION SEQUENCETable 41 — Temperature Limits for CIRCA_AN Circuit A Analog Parameters APPENDIX ASCN Tables A_UNIT General Unit Parameters CIRCADIO Circuit A Discrete Inputs/Outputs OPTIONS Unit Parameters CIRCBDIO Circuit B Discrete Inputs/OutputsCIRCB_AN Circuit B Analog Parameters BRODEFS Broadcast POC Definition Table ALARMDEF Alarm Definition TableDISPLAY Marquee Display SETUP DUALCHIL Dual Chiller Configuration Settings OPTIONS2 Options 2 Configuration OPTIONS1 Options 1 Configuration SETPOINT SCHEDOVR Timed Override SetupRESETCON Temperature Reset and Demand Limit MAINTENANCE ALARMS: Maintenance DisplayUNIT DUALCHIL: Maintenance Display CURRMODS: Maintenance Display LOADFACT: Maintenance Display LEARNFNS Maintenance Display PM-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 cont DataPort, DataLink, BAClink Object Definition APPENDIX C SETPOINT OPTIONS Design Information START-UPCHECKLIST FOR 30RA LIQUID CHILLERRemove and use for Job File I.Project Information II. Preliminary Equipment Check Start and Operate Machine. Complete the Following III. Unit Start-Up CL-3 CL-4 Record Software Versions MODE — RUN STATUSCOMMENTS III.Unit Start-Upcont UNIT Configuration SettingsOPTIONS1 Options Configuration CL-6 OPTIONS2 Options ConfigurationRSET Reset Configuration Settings III.Unit Start-Upcont CL-7 SLCT Setpoint and Ramp Load ConfigurationIII.Unit Start-Upcont SETPOINT III.Unit Start-Upcont Service Test Mode and Sub-ModeDirectory

Sterling 30RA010-055 manual CL-3

Models: 30RA010-055

CL-3