CSR-20 & CSR-40, September 1999
Table of Contents iii
Electrical Maintenance 5-1
Unit Wiring 5-1
Auxiliary Battery and Battery Charger (Option) 5-1
High Pressure Cutout Switch 5-1
Condenser Fan and Evaporator Fan Rotation 5-2
Electric Heaters 5-2
Integrated Remote Monitor Unit (IRMU) (Option) 5-3
Refrigeration System Diagnosis and Service 6-1
Hermetic Refrigeration System Diagnosis
Procedures 6-1
Hermetic Refrigeration System Visual Inspection
and Diagnosis Chart 6-3
Hermetic Refrigeration System Service
Procedures 6-4
Service Tools 6-4
Refrigerant Charge 6-5
Compressor Oil Charge 6-5
Installing and Removing Piercing Type Service
Valves and a Gauge Manifold Set 6-6
Gauge Manifold Valve Positions 6-7
Refrigerant Leak Test Procedure 6-8
Using Pressurized Nitrogen 6-9
Refrigerant Recovery from Hermetic
Refrigeration Systems 6-10
Evacuation and Cleanup of the
Refrigeration System 6-11
Charging the System with Refrigerant 6-15
Compressor Replacement 6-15
Compressor Discharge Temperature Sensor
Replacement 6-16
Modulation Valve Repair or Replacement 6-17
Condenser Coil Replacement 6-19
Filter Drier/In-line Filter Replacement 6-20
Expansion Valve Replacement 6-20
Heat Exchanger Replacement 6-21
Receiver Tank Replacement 6-21
High Pressure Cutout Switch Replacement 6-22
Warm Gas Bypass Solenoid Valve, Liquid
Injection Valve or Dehumidify Valve
(Option) Replacement 6-22
Structural/Accessory Maintenance 7-1
Mounting Bolts 7-1
Unit Inspection 7-1
Condenser Coil 7-1
Evaporator Coil 7-1
Defrost Drains 7-2
Evaporator Fan Location 7-2
Condenser Fan Location 7-2
Fresh Air Exchange System 7-2
Partlow (Model SR) Recording Thermo-
meter (Option) 7-3
Recording Chart Replacement 7-3
Marking System Calibration 7-3
Element Replacement 7-4
Saginomiya (Model SKM) Recording Thermo-
meter (Option) 7-4
Battery 7-4
Recording Chart Replacement 7-5
Marking System Calibration 7-5
Power Element Assembly Replacement 7-6
Timer (Quartz Motor and Reducing Gear
Replacement 7-6
Battery Voltage Indicator 7-6
Humidity System (Option) 7-7
Pretrip Inspection 7-7
Inspection and Cleaning 7-7
Mechanical Diagnosis 8-1
Mechanical Diagnosis 8-1
Electrical, Refrigeration and
µµ
P-D Menu
Flow Diagrams 9-1
Electrical Schematic with Circuit Tracing 9-1 to 9-28
460/380 Vac Power Supply to Unit 9-1
230/190 Vac Power Supply to Unit 9-2
External 12 Vdc Battery Power Supply 9-3
Microprocessor Awakened from Sleep Mode 9-4
12.5 Vdc Control Circuit, Sensor Circuits,
Modulation Valve Circuit and
Water Pressure Circuit (Option) 9-5
24 Vac Control Circuit 9-6
Setpoint Enable Battery and Battery
Charger Circuit (Option) 9-7
Remote Monitor Receptacle (4-pin) for
Bridge Lights Circuit (Option) 9-8
TRANSFRESH
®
Atmosphere Control
System Circuit (Option) 9-9
Integrated Remote Monitor System
Circuit (Option) 9-10
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