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VAT PLUTO Series - User Manual

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VOLTA AIR
TECHNOLOGY
(VAT)
OWNERS MANUAL PLUTO SERIES
You shall read and understand this manual, before you
operate or install the refrigerator unit
RU.12.100/70 V0

Questions and Answers

  • L
    Linda SkinnerSep 7, 2025
    Why is my VAT PLUTO cooling insufficiently?
    • I
      ipittsSep 7, 2025
      If your VAT Refrigerator is on but cooling is insufficient, it could be because the ambient temperature exceeds the maximum operating temperature (43°C/110F). Choose a colder location, such as a shaded area.
  • A
    Andrew CruzAug 22, 2025
    Why is the condenser fan not working on my VAT Refrigerator?
    • R
      Ronald FigueroaAug 22, 2025
      If the condenser fan of your VAT Refrigerator is not working, it may be due to bad connections or a defective relay, fuse, fan switch, or fan motor. Check to ensure the condenser fan is not faulty and that the connections to the wiring harness are secure at the plugs.
  • L
    lzamoraSep 5, 2025
    What causes high suction pressure in my VAT Refrigerator?
    • D
      Deborah SmithSep 5, 2025
      If your VAT Refrigerator is experiencing high suction pressure, it may be due to a defective compressor or expansion valve, or an open hot gas valve. Check the TXV (thermostatic expansion valve) inside the evaporator box.
  • M
    Michael RobinsonSep 3, 2025
    What causes low discharge pressure in my VAT PLUTO?
    • G
      Glenn EdwardsSep 3, 2025
      If your VAT Refrigerator is experiencing low discharge pressure, it could be due to a defective compressor, low refrigerant charge, or an open hot gas valve. Check that the sight glass is full and not showing bubbles.
  • A
    Amy BatesSep 2, 2025
    What causes low suction pressure in my VAT PLUTO?
    • S
      Sharon WillisSep 2, 2025
      If your VAT Refrigerator is experiencing low suction pressure, it could be due to low evaporator airflow, low refrigerant charge, or a defective TXV. Check that the evaporator core is not plugged by dirt, frost, or a block of ice.
  • I
    Isaac HardinSep 1, 2025
    How to fix a VAT Refrigerator when the defrost is not working?
    • N
      Nicole ParkerSep 1, 2025
      If the defrost is not working on your VAT Refrigerator, it might be due to incorrect defrost setting parameters. Check the automatic defrost setting or run defrost manually.
  • J
    James LewisAug 30, 2025
    What causes high discharge pressure in my VAT PLUTO Refrigerator?
    • A
      Anthony RossAug 30, 2025
      If your VAT Refrigerator has high discharge pressure, it may be caused by refrigerant overcharge or condenser malfunction. Check that the condenser fan is on and the air flow is sufficient.
  • W
    William MillerAug 29, 2025
    What to do if my VAT PLUTO does not start?
    • R
      Robert LynchAug 29, 2025
      If your VAT Refrigerator is not starting, it could be due to no power reaching the controller. Check the controller connection to the wiring harness at the controller plug.
  • A
    Amy TaylorAug 27, 2025
    Why is my VAT PLUTO Refrigerator blowing warm air?
    • W
      walkerdebraAug 28, 2025
      If your VAT Refrigerator is on but blowing warm air, the compressor may not be starting or could be defective. Check the compressor connection on the signal wire plug.
  • R
    Robert PalmerAug 27, 2025
    What to do if the evaporator fan is off on my VAT Refrigerator?
    • C
      Carla MacdonaldAug 27, 2025
      If your VAT Refrigerator is on but the evaporator fan is off, it could be due to no power or wake-up signal reaching the evaporator fan. Check that the evaporator fan is not faulty and that the connections to the wiring harness are secure at the plugs.

Summary

Introduction

Safety Instructions

Safety Symbols & Messages

Explains DANGER, WARNING, CAUTION, NOTICE symbols.

Intended Use

Specifies the designed purpose of the refrigeration units.

Precautions

Lists important safety precautions to follow during operation.

Technical Specifications

System Description

Condenser Unit

Describes the condenser unit and its mounting.

Evaporator Unit

Describes the evaporator unit and its components.

Controller Functions

Controller Parameter Setting

How to set various parameters on the digital controller.

Unit Conversion

How to switch between Celsius and Fahrenheit units.

System Operations

Defrost Operation

Explains how defrost mode operates automatically and manually.

Heating Mode

Explains how heating mode is activated and functions.

Controller;System Faults

Lists fault codes and their system responses.

Refrigeration Cycles

Cooling Cycle

Explains the vapor compression refrigeration cycle in cooling mode.

Null Mode

Describes the system's state when the set temperature is reached.

Defrost; Heating Cycle

Explains frost removal and heat circulation processes.

Installation

Installation Conditions

Lists prerequisites and checks before unit installation.

Required Tools;Equipment

Lists all tools and equipment needed for installation.

Pluto Mounting Dimensions

Provides dimensions for unit mounting.

Condenser Installation

Step-by-step guide for installing the condenser unit.

Evaporator Installation

Instructions for mounting the evaporator unit.

Refrigerant Hose Installation

Details on how to route and install refrigerant hoses.

Power Cables Installation

Guides on connecting power cables for the unit.

Drain Installation

Instructions for setting up the drain system.

Controller Installation

Steps to install the controller unit.

Energy Pack Connection

Instructions for connecting the energy pack.

Testing and Charging

Leak Testing

Procedure for performing leak tests on the system.

Evacuate System

Steps for evacuating the system before charging.

Charging the System

Guidelines for charging the system with refrigerant.

System Startup and Checklist

Testing and Starting

Steps to test and start the refrigeration unit.

Installation Checklist

A checklist for verifying installation steps before operation.

Maintenance

Condenser and Evaporator Maintenance

Maintenance steps for the condenser and evaporator units.

Battery; Power Maintenance

Maintenance checks for battery and power connections.

Electrical Wiring Diagram

Troubleshooting

Controller Fault Code Indication

Lists fault codes, descriptions, and action items.

Symptom Indication - No Fault Codes

Lists symptoms, possible problems, and action items.

Common Issue Resolution

Troubleshooting for common issues like no start, warm air, or insufficient cooling.

Warranties and Contact Information

VAT PLUTO Series Specifications

General IconGeneral
BrandVAT
ModelPLUTO Series
CategoryRefrigerator
LanguageEnglish