Thermo King V-520 Series User Manual

Revision A
February 2021
TTKK 5555003322--1188--OOPP--EENN
V-520 Series Units with Direct Smart Reefer
Single and Multi-Temperature Systems
Operator’s Manual

Thermo King V-520 Series Specifications

General

Brand	Thermo King
Model	V-520 Series
Category	Automobile Accessories
Language	English

Summary

Safety Precautions

Danger, Warning, Caution, and Notice

Explains different types of safety advisories used in the manual.

General Practices

Provides fundamental safety rules for operating and servicing the unit.

Sharp Edges

Warns about potential lacerations from exposed coil fins.

Auto Start/Stop

Advises caution regarding the unit's automatic start/stop function.

Electrical Hazards

Caution against connecting unauthorized equipment to prevent damage.

Refrigerant Hazards

Advises caution when working with refrigerants due to potential hazards.

Hazardous Gases

Warns about toxic gases produced by refrigerants in presence of flame.

Refrigerant Vapor Hazard

Caution against inhaling refrigerant vapor in confined spaces.

Personal Protective Equipment (PPE) Required!

Details necessary PPE for handling refrigerants safely.

Refrigerant Oil Hazards

Outlines hazards of refrigerant oil and recommended protective measures.

First Aid

Provides first aid instructions for exposure to refrigerant, oil, coolant, and battery acid.

ELECTRICAL SHOCK

Details immediate actions and safety precautions for electrical shock incidents.

ASPHYXIATION

Describes emergency response for asphyxiation.

Safety Decals

Explains the purpose and location of safety decals on the unit.

Electric Standby Nameplates (Models 20 and 50 Only)

Refers to nameplates for electric standby models.

Unit Description

Introduction

Overview of the Thermo King V-520 refrigeration systems and their applications.

Standard Unit Features

Lists key features of the standard unit design and construction.

Optional Features

Details additional features available for specific models.

System Components

Introduces the main components of the refrigeration system.

Condenser

Describes the condenser, its location, and modularity based on model.

Evaporator

Describes the evaporator's mounting location and service access.

In-Cab Controller

Explains the function and location of the Direct Smart Reefer (DSR) controller.

Standby Operation (Models 20 and 50 Only)

Details how to operate the unit in electric standby mode.

Electrical System

Explains the unit's electrical system and power requirements.

Fuses

Describes the protection provided by various fuses in the electrical system.

Other Systems Fuses

Identifies fuses located outside the controller and servicing recommendations.

Operating Instructions

Introduction

Explains how temperature control is achieved via setpoint and return air temperature.

Cool

Describes the unit's operation in cool mode.

Heat

Describes the unit's operation in heat mode.

Null

Explains the unit's operation when the setpoint is met.

Unit Controls

Details the functions of the buttons and displays on the DSR controller.

Operating the Unit

Instructions for operating the unit via the vehicle engine.

Standby Operation (Models 20 and 50 Only)

Steps for operating the unit in electric standby mode.

Entering the Setpoint Temperature

Guide to adjusting the desired temperature setpoint for the unit.

Multi-Temperature Units

Instructions for setting temperatures in multiple compartments.

Compartment Selection

How to select active compartments for multi-temperature operation.

Initiating Manual Defrost Cycle

Procedure to manually start a defrost cycle.

Alarms

How the unit responds to and displays alarms.

Auto Start (after an alarm)

Describes automatic unit restart after an alarm is cleared.

Manual Start (after an alarm)

Describes manual unit restart after specific alarms.

Clearing Alarm Codes

Steps to clear alarm codes after resolving the underlying issue.

Buzzers (Optional)

Explains the function of optional buzzers for alerts.

Alarm Code Descriptions

Lists and describes various alarm codes and their meanings.

Viewing Information Displays

How to access system information like alarms and setpoints.

Main Menu

Navigating system information via the main display.

Hourmeter Menu

Accessing unit operating hours and maintenance information.

Unit Operation and Loading Procedures

Unit Operation (Before Loading Refrigerated Cargo)

Procedures for starting and pre-cooling the unit before loading cargo.

Loading Procedure

Guidelines for loading refrigerated cargo to maintain temperature.

Enroute Inspections

Instructions for performing periodic inspections during transit.

Inspection Procedure

Step-by-step guide for conducting enroute inspections.

Inspection Troubleshooting

Troubleshooting common issues encountered during enroute inspections.

Specifications

Fuses

Refers to fuse information on page 18.

Electric Standby Power Supply Requirements (Models 20 and 50 Only)

Details power supply and cord size requirements for standby operation.

Maintenance Inspection Schedule

Warranty

Proposition 65

Warning regarding cancer and reproductive harm as per Proposition 65.

Serial Number Locations

CONDENSER

Location of the serial number nameplate on the condenser.

STANDBY COMPRESSOR

Location of the serial number nameplate on the standby compressor.

ENGINE DRIVEN COMPRESSOR

Location of the serial number nameplate on the engine-driven compressor.

Emergency Cold Line