Related Manuals for Thermo King V-320 20
Summarization of Contents
Safety Precautions
General Practices
Covers hazards like explosion, toxic gases, and personal injury risks from rotating parts.
Electrical Hazards
Warns about high voltage, proper switch use, and capacitor discharge risks to prevent shock or damage.
First Aid
Provides emergency procedures for refrigerant, oil, electrical shock, and asphyxiation exposure.
Specifications
Electrical System
Details specifications for fuses, motors, solenoids, relays, transformers, and capacitors.
Refrigeration System
Outlines refrigerant charge, defrost termination, and pressure switch settings for various models.
Compressors
Lists compressor types, oil capacity, clutch specs, defrost methods, and motor ratings.
Unit Description
Introduction
Introduces V-220/V-320 series models, system components, and control systems.
Unit Operation
Explains unit operation modes (Cool, Null, Heat, Defrost) and thermostat control logic.
Cool Mode Model 10
Details the refrigerant flow and component operation during Cool Mode for Model 10 units.
Maintenance Inspection Schedule
Electrical
Lists daily, weekly, and periodic inspection tasks for electrical components like alarms, wiring, and grounds.
Refrigeration/Heating
Details inspection tasks for refrigerant systems, hoses, and pressure settings.
Electrical Maintenance
Defrost System
Explains defrost initiation, termination, and the role of timers and switches.
Fuses
Identifies controller, control box, and harness fuses with their locations and amperage ratings.
Compressor Motor
Covers testing and replacement procedures for compressor motors and associated components.
Refrigeration Maintenance
Evacuating and Charging the Refrigeration System
Provides procedures for safe refrigerant removal, system evacuation, and proper charging.
Checking Compressor Oil Charge
Outlines the process for verifying and adjusting compressor oil levels after system service.
Refrigeration Service Operations
Checking Superheat
Describes how to measure and calculate superheat for optimal cooling performance.
Low Pressure Cutout Switch (LPCO)
Explains the LPCO switch's function in protecting the compressor from low suction pressure.
Compressor Pressure Regulator Valve (Model 30 and 50 Only)
Details the CPR valve's role in regulating suction pressure and procedures for testing and adjustment.
Compressor Maintenance
Compressor Test
Step-by-step guide to test compressor rotation, clutch air gap, and discharge pressure capabilities.
Belt Tensions
Emphasizes the importance of correct belt tension and alignment for compressor installation and longevity.
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