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Star Cool Manuals
Refrigerator
SCU-20
Operating and service manual
Star Cool SCU-20 Operating And Service Manual
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Preface
Warnings
Table of Contents
Legend
General Description
Function Description
Start-Up Procedure
Climate Control Function
Temperature Control
Capacity Control and Limiter
Expansion Valve
Economizer Valve
Dehumidification
Condenser Fan
Evaporator Fan
Defrost Function
QUEST (Optional)
Bulb Mode (Overall Description)
Product Perspective
Product Functions
User Interface
Communication to Data Logger
Bulb Mode (System Feature)
Setting
Configuration
Limitations
Alarms
Defaulting
Tests
Function Test
Full PTI
Short PTI
Data Log
Alarm Action System (AAS)
Temperature Control
Expansion Valve Control
Condenser Fan Control
Dehumidification Control
Defrost Control
Electrical Control
Refrigeration System Data
Refrigerant Charge, R134A
General Specification
Compressor - Motor Assembly
Frequency Converter (FC)
High Pressure Cut - out Switch
Fusible Plug, Receiver
Economizer
Evaporator Coil
Condenser Coil
Evaporator Fan
Condenser Fan
Water Cooled Condenser (Optional)
Defrosting
Fresh Air Exchange
Refrigeration Controls
Electrical Data
Circuit Breaker
Contactors
Fuses
Power Plug
Power Cable
USDA Socket Requirements
Evaporator Fan Motor
Condenser Fan Motor
Evaporator Coil Heaters
Temperature Sensors, Including USDA
Pressure Transmitters
Miscellaneous
User Interface
Indicator Lights
Display
Key Pad
Menu Overview
General Page Layout
Using the Cursor
Changing a Parameter Value
Activating a Function
Air Exchange Page
Operation
Menu Structure
General Operation
Temperature Setting
Wake-Up Mode
Contrast Adjustment of the Display
PTI or Function Test Execution
Info Menu Viewing
Operation Parameter Setting
Programs
Multiple Temperature Set Points Program, MTS
Cold Treatment Program, CT
Alarms
Service Function Setting/Viewing
Manual Operations
Datalog View
Time Adjust
Run Time Counters
Configuration
Serial Numbers
C and °F Temperature Scale Showing, Alternately
Viewing Graph of Supply and Return Temperature
Manual Defrost Initiation
Water-Cooling Activation/Deactivation
Emergency Operation
FC Defective
Controller Defective
External Interfaces
General Requirements
List of Terms Used for External Interfaces
Functions Overview
Location of Valves
Location of Motors, Temperature Sensors, Humidity Sensor and Air Exchange Potentiometer
Location of Pressure Transmitters, High Pressure Switch and Oil Outlet Port
General Trouble Shooting
Trouble Shooting for Star Cool Main Controller
Detailed Alarm Description
Alarm List
Events
Temperature Sensor Alarms (al 1XX)
Pressure Transmitter Alarms (al 2XX)
Other Sensor Alarms (al 3XX)
Power Alarms (al 4XX)
Frequency Converter (FC) Alarms (al 5XX)
Operation Alarms (al 6XX)
Communication Alarms (al 7XX)
Test Alarms (al 8XX)
Controller Alarms (al 9XX)
Calibration of Air Exchange Sensor
Sensor Calibration Using Starview
Replacing of Unit
Replacement Evaporator Motor and Fan
Replacement Condenser Motor and Fan
Replacement of Evaporator
Replacement of Heating Elements
Replacement of FC
Replacement of Compressor
Replacement of Compressor Valve Plate / Cylinder Head Gasket
Service and Maintenance
Evacuation of Refrigerant
Compressor Pump Down, Operation
Compressor Pump Down, Replaced
Pump down of Unit
Pressure Test
Charging of Refrigerant
Charging of an Empty Unit
Charging of Unit Low on Charge
Leakage Detection
Fan Motors (in Not Using Plug)
Drying Filter
Replacing of Drying Filter
Compressor
Check of Oil Level
Charging of Oil
Draining of Oil from Compressor
Soldering
Welding
Tables
Datalog Description
Temperature Sensor [°C] - Resistance Table
Temperature Sensor [°F] - Resistance Table
Air Exchange Sensor Table Voltage - M3/H for 35 CMH
Voltage - Pressure Table, Low Pressure Transmitter (NSK)
Air Exchange Sensor Table Voltage - M3/H for 75 CMH
Voltage - Pressure Table, Low Pressure Transmitter (AKS)
Voltage - Pressure Table, High Pressure Transmitter (NSK)
Voltage - Pressure Table, High Pressure Transmitter (AKS)
Temperature Sensor - Voltage Table
Pressure/Temperature Table for R134A
Tightening Torques
Controller Unit Illustration
Star Cool Unit, Installation Dimensions
P & I Diagram
Overall Wiring Schematic
Overall Wiring Schematics (Optional)
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Alarms
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Operating and service manual
Star Cool refrigeration unit Model SCU-20/40 and SCI-20/40
Version 810900C April 2015
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Table of Contents
Troubleshooting
Location of pressure transmitters, high pressure switch and oil outlet port
57
Trouble shooting for Star Cool main controller
58
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Related Manuals for Star Cool SCU-20
Refrigerator Star Cool SCU-40 Operating And Service Manual
(196 pages)
Refrigerator Star Cool SCI-40 Operating And Service Manual
(196 pages)
This manual is also suitable for:
Scu-40
Sci-20
Sci-40
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