Sterling
30RA010-055
manual
Troubleshooting
Error codes
Alarm
Compressor Wiring
Maintenance
OPTIONS1 Options Configuration
A — 4-20mA Reset
30RA Access Panels
DISPLAY Marquee Display SETUP
Main Base Board, J8 Connector
Page 7
Fig. 2 — Typical Control Box for
30RA032-055
(042-055
Shown)
7
Page 6
Page 8
Image 7
Page 6
Page 8
Contents
SAFETY CONSIDERATIONS
GENERAL
CONTENTS
Table 1 — Unit Sizes
MAJOR SYSTEM COMPONENTS
Control Module Communication
Sterlco Comfort Network SCN Interface —
Table 4 - Output Relays
Table 3 — Status Switches
Table 5 - SCN Communication Bus Wiring
Table 2 — Thermistor Designations
LEGEND FOR FIG.
Page
Page
30RA010-018AQUA SNAP
Fig. 3 — Wiring Schematic 30RA010-018
Fig. 3 - Wiring Schematic 30RA010-018cont
AQUA-SNAPLOW VOLTAGE CONTROL SCHEMATIC
SEE NOTE SEE NOTE
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 Board
ESCAPEENTER
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
R-22Maneurop Compressor
Fig. 13 — Operating Envelope for
Fig. 14 — 30RA Condenser Fan Sequence
Cooling Set Point Select
Fig. 16 — Scrolling Marquee Display
Service Test See Table 11 — Both main power
and 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 14 — Set Point and Sub-ModeDirectory
Table 13 — Pressure Mode and Sub-ModeDirectory
Table 15 — Inputs Mode and Sub-ModeDirectory
DISPLAY
Table 16 — Outputs Mode and Sub-ModeDirectory
SUB-MODE
KEYPAD
DISPLAY
SUB-MODE
KEYPAD
ITEM
DISPLAY
SUB-MODE
KEYPAD
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-MODE
ITEM
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 Fluid
Temperature 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
Recommended that system be filled with an appro
Table 28 — Troubleshooting
and fluid tubing
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
SERVICE
Compressor Replacement Refer to Fig
Table 30 - Unit Torque Specification
Fig. 30 — Compressor Location — 30RA032-055
Fig. 28 — Compressor Wiring
Fig. 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 Panels
Check Refrigerant Feed Components
Fig. 32 — Condenser-FanMounting
Check Unit Safeties
Table 32 — Factory Settings, High-Pressure
Switch Fixed
Compressor and Unit Protective Devices
COOLER FREEZE-UPPROTECTION
TEMP
TEMP
For Thermistor T10
For Thermistor T10
Fig. 35 — Fluid-SideTemperature Sensors T1 and T2
Main Base Board, J8 Connector
Fig. 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
MAINTENANCE
Minimum Loop Volume
PRE-START-UP
Operating Limitations
Table 41 — Temperature Limits for
OPERATION SEQUENCE
Standard 30RA Units
CIRCA_AN Circuit A Analog Parameters
APPENDIX A
SCN Tables A_UNIT General Unit Parameters
CIRCADIO Circuit A Discrete Inputs/Outputs
CIRCB_AN Circuit B Analog Parameters
CIRCBDIO Circuit B Discrete Inputs/Outputs
OPTIONS Unit Parameters
BRODEFS Broadcast POC Definition Table
ALARMDEF Alarm Definition Table
DISPLAY Marquee Display SETUP
DUALCHIL Dual Chiller Configuration Settings
OPTIONS2 Options 2 Configuration
OPTIONS1 Options 1 Configuration
RESETCON Temperature Reset and Demand Limit
SCHEDOVR Timed Override Setup
SETPOINT
UNIT
ALARMS: Maintenance Display
MAINTENANCE
DUALCHIL: Maintenance Display
CURRMODS: Maintenance Display
LOADFACT: Maintenance Display
LEARNFNS Maintenance Display
PM-PUMP:Maintenance Display
PM-COIL:Maintenance Display
PM-STRN Maintenance Display
RUNTEST: Maintenance Display
TESTMODE: Maintenance Display
STRTHOUR Maintenance Display
VERSIONS: Maintenance Display
WSMDEFME: Maintenance Display
APPENDIX B
FACTORY SETTINGS FOR COMPRESSOR, FAN, PUMP
AND MANUAL STARTERS
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 CHILLER
Remove 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
COMMENTS
Record Software Versions MODE — RUN STATUS
CL-4
OPTIONS1 Options Configuration
UNIT Configuration Settings
III.Unit Start-Upcont
CL-6
OPTIONS2 Options Configuration
RSET Reset Configuration Settings
III.Unit Start-Upcont
CL-7
SLCT Setpoint and Ramp Load Configuration
III.Unit Start-Upcont
SETPOINT
III.Unit Start-Upcont
Service Test Mode and Sub-ModeDirectory
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