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Sterling 30RA010-055 manual 100/100

Models: 30RA010-055

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Table 7 — Part Load Data Percent Displacement, Standard Units with Minimum Load Valve

	30RA UNIT SIZE	CONTROL	LOADING SEQ A		LOADING SEQ B
	30RA UNIT SIZE	STEPS	% Displacement	Compressor	% Displacement	Compressor
		STEPS

	010 (50/60 Hz)	1	69/ 71	A1*	—	—
	010 (50/60 Hz)	2	100/100	A1	—	—
		2	100/100	A1	—	—
	015 (60 Hz)	1	79	A1*	—	—
	015 (60 Hz)	2	100	A1	—	—
		2	100	A1	—	—
	015 (50 Hz)	1	28	A1*	—	—
	015 (50 Hz)	2	50	A1	—	—
		3	100	A1,A2	—	—
	018 (50/60 Hz)	1	32/ 31	A1*	—	—
	018 (50/60 Hz)	2	50/ 50	A1	—	—
		3	100/100	A1,A2	—	—
	022 (50/60 Hz)	1	27/ 35	A1*	—	—
	022 (50/60 Hz)	2	42/ 50	A1	—	—
		3	100/100	A1,A2	—	—
	025 (50/60 Hz)	1	38/ 37	A1*	—	—
	025 (50/60 Hz)	2	50/ 50	A1	—	—
		3	100/100	A1,A2	—	—
	030	1	39	A1*	—	—
	030	2	50	A1	—	—
		3	100	A1,A2	—	—
		1	15	A1*	30	B1*
	032	2	25	A1	40	B1
	032	3	60	A1,A2	65	A1,B1
		3	60	A1,A2	65	A1,B1
		4	100	A1,A2,B1	100	A1,A2,B1
		1	16/25	A1*	32/25	B1*
	035 (50/60 Hz)	2	25/33	A1	40/33	B1
	035 (50/60 Hz)	3	60/67	A1,A2	65/67	A1,B1
		3	60/67	A1,A2	65/67	A1,B1
		4	100	A1,A2,B1	100	A1,A2,B1
		1	24	A1*	29	B1*
	040	2	32	A1	37	B1
	040	3	63	A1,A2	68	A1,B1
		3	63	A1,A2	68	A1,B1
		4	100	A1,A2,B1	100	A1,A2,B1
		1	18	A1*	18	B1*
	042	2	25	A1	25	B1
	042	3	50	A1,B1	50	A1,B1
		4	75	A1,A2,B1	75	A1,B1,B2
		5	100	A1,A2,B1,B2	100	A1,A2,B1,B2
		1	15	A1*	15	B1*
	045 (60 Hz)	2	22	A1	22	B1
	045 (60 Hz)	3	44	A1,B1	44	A1,B1
		4	72	A1,A2,B1	72	A1,B1,B2
		5	100	A1,A2,B1,B2	100	A1,A2,B1,B2
		1	19	A1*	19	B1*
	045 (50 Hz), 050	2	25	A1	25	B1
	045 (50 Hz), 050	3	50	A1,B1	50	A1,B1
		4	77	A1,A2,B1	77	A1,B1,B2
		5	100	A1,A2,B1,B2	100	A1,A2,B1,B2
		1	20	A1*	20	B1*
	055	2	25	A1	25	B1
	055	3	50	A1,B1	50	A1,B1
		4	75	A1,A2,B1	75	A1,B1,B2
		5	100	A1,A2,B1,B2	100	A1,A2,B1,B2

*Minimum Load Valve energized.

NOTE: These capacity steps may vary due to different capacity staging sequences.

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Sterling 30RA010-055 manual 100/100

Contents

SAFETY CONSIDERATIONS GENERAL CONTENTSTable 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 DesignationsLEGEND FOR FIG. Page Page 30RA010-018AQUA SNAP Fig. 3 — Wiring Schematic 30RA010-018Fig. 3 - Wiring Schematic 30RA010-018cont AQUA-SNAPLOW VOLTAGE CONTROL SCHEMATICSEE NOTE SEE NOTE 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 30RA042-055contMODE Fig. 7 — Main Base BoardESCAPEENTER REMOTE CONTACT SW1 OFF ENABLE OFF SW2 ONFig. 9 — Typical Space Temperature Sensor Wiring CEPL130351 Fig. 11 - Energy Management Module100/100 Fig. 12 — Deadband Multiplier R-22Maneurop Compressor Fig. 13 — Operating Envelope forFig. 14 — 30RA Condenser Fan Sequence 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 PointsOptional 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 14 — Set Point and Sub-ModeDirectory Table 13 — Pressure Mode and Sub-ModeDirectoryTable 15 — Inputs Mode and Sub-ModeDirectory DISPLAY Table 16 — Outputs Mode and Sub-ModeDirectorySUB-MODE KEYPADDISPLAY SUB-MODEKEYPAD ITEMDISPLAY SUB-MODEKEYPAD ITEMTable 18 — Time Clock Mode and Sub-ModeDirectory PER.3 SUB-MODE Table 19 — Operating Mode and Sub-ModeDirectory Table 20 — Alarms Mode and Sub-ModeDirectoryDISPLAY SUB-MODEITEM KEYPAD ENTRYRSET DISP Table 23 — Operating Modes Table 25A — 4-20mA Reset Table 24 — Example of Reading and Clearing AlarmsTable 26B — Configuring Return Temperature Reset Fig. 18 — Standard Chilled Fluid Temperature Control — No ResetFig. 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 TROUBLESHOOTINGRecommended that system be filled with an appro Table 28 — Troubleshootingand fluid tubing 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 contElectronic Components SERVICECompressor Replacement Refer to Fig Table 30 — Unit Torque SpecificationFig. 30 — Compressor Location — 30RA032-055 Fig. 28 — Compressor WiringFig. 27 — Typical Compressor Mounting — All Sizes Fig. 29 — Compressor Location — 30RA010-030Table 31 - Oil Charge Condenser Section and CoilsFig. 33 — Condenser-FanPosition Standard Fan Fig. 31 — 30RA Access PanelsCheck Refrigerant Feed Components Fig. 32 — Condenser-FanMountingCheck Unit Safeties Table 32 — Factory Settings, High-PressureSwitch Fixed Compressor and Unit Protective DevicesCOOLER FREEZE-UPPROTECTION TEMP TEMP For Thermistor T10 For Thermistor T10 Main Base Board, J8 Connector Fig. 35 — Fluid-SideTemperature Sensors T1 and T2Fig. 36 — Thermistor Connections to PROGRAMMING Mode •P50: FAULT HISTORY — Last 8 faults Table 37 - Fault Codes•P51: SOFTWARE version PARAMETERS Table 39 — Replacement Modules System Check MAINTENANCEMinimum Loop Volume PRE-START-UPOperating Limitations OPERATION SEQUENCE Table 41 — Temperature Limits forStandard 30RA Units CIRCA_AN Circuit A Analog Parameters APPENDIX ASCN Tables A_UNIT General Unit Parameters CIRCADIO Circuit A Discrete Inputs/OutputsCIRCB_AN Circuit B Analog Parameters CIRCBDIO Circuit B Discrete Inputs/OutputsOPTIONS Unit Parameters BRODEFS Broadcast POC Definition Table ALARMDEF Alarm Definition TableDISPLAY Marquee Display SETUP DUALCHIL Dual Chiller Configuration SettingsOPTIONS2 Options 2 Configuration OPTIONS1 Options 1 ConfigurationSCHEDOVR Timed Override Setup RESETCON Temperature Reset and Demand LimitSETPOINT UNIT ALARMS: Maintenance DisplayMAINTENANCE DUALCHIL: Maintenance Display CURRMODS: Maintenance DisplayLOADFACT: Maintenance Display LEARNFNS Maintenance DisplayPM-PUMP:Maintenance Display PM-COIL:Maintenance DisplayPM-STRN Maintenance Display RUNTEST: Maintenance Display TESTMODE: Maintenance Display STRTHOUR: Maintenance DisplayVERSIONS: Maintenance Display WSMDEFME: Maintenance Display APPENDIX B FACTORY SETTINGS FOR COMPRESSOR, FAN, PUMPAND MANUAL STARTERS FACTORY SETTINGS FOR COMPRESSOR, FAN, PUMP AND MANUAL STARTERS contDataPort, DataLink, BAClink Object Definition APPENDIX CSETPOINT OPTIONSDesign Information START-UPCHECKLIST FOR 30RA LIQUID CHILLERRemove and use for Job File I.Project Information II. Preliminary Equipment CheckStart and Operate Machine. Complete the Following III. Unit Start-UpCL-3 COMMENTS Record Software Versions MODE — RUN STATUSCL-4 OPTIONS1 Options Configuration UNIT Configuration SettingsIII.Unit Start-Upcont CL-6 OPTIONS2 Options ConfigurationRSET Reset Configuration Settings III.Unit Start-UpcontCL-7 SLCT Setpoint and Ramp Load ConfigurationIII.Unit Start-Upcont SETPOINTIII.Unit Start-Upcont Service Test Mode and Sub-ModeDirectory