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Toshiba RAS-13NKV-E User Manual

Toshiba RAS-13NKV-E
96 pages
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FILE NO. SVM-05027-1
SERVICE MANUAL
AIR CONDITIONER
SPLIT WALL TYPE
RAS-13NKV-E / RAS-13NAV-E
RAS-13NKV-A / RAS-13NAV-A
June, 2005
RAS-16NKV-E / RAS-16NAV-E
RAS-16NKV-A / RAS-16NAV-A

Table of Contents

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Toshiba RAS-13NKV-E Specifications

General IconGeneral
TypeSplit System
Cooling Capacity3.5 kW
Heating Capacity4.0 kW
RefrigerantR410A
Power Supply220-240V, 50Hz
Energy Efficiency Ratio (EER)3.21
Indoor Unit Weight9 kg
Noise Level (Outdoor)50 dB(A)
Noise Level (Indoor)42 dB(A)

Summary

Toshiba Air Conditioner Specifications

Detailed Unit Specifications

Provides detailed technical specifications for indoor and outdoor units, including capacity, power, and dimensions.

Operation Characteristic Curves

Illustrates the relationship between compressor speed and current draw for cooling and heating operations.

Capacity Variation by Temperature

Shows how cooling and heating capacity ratios change with outdoor temperature variations.

Refrigerant R410A Handling and Safety

Safety Precautions for R410A

Essential safety guidelines for installation and servicing with R410A refrigerant, emphasizing proper tools and ventilation.

Refrigerant Piping Installation Guidelines

Details on selecting and processing copper pipes and joints suitable for R410A, including material thickness requirements.

Required Tools for R410A

Lists tools exclusive for R410A and their interchangeability with conventional refrigerant R22 systems.

Refrigerant Recharging Procedure

Step-by-step instructions for recovering, evacuating, and recharging refrigerant in the air conditioner system.

Brazing Pipes for Refrigerant Lines

Covers materials for brazing, flux requirements, and brazing methods to prevent oxidation during pipe joining.

Air Conditioner Construction Views

Indoor Unit Construction Details

Provides detailed diagrams and dimensions for the indoor unit, including mounting and installation aspects.

Outdoor Unit Construction Details

Illustrates the external structure and dimensions of the outdoor unit, showing installation and component placement.

Air Conditioner Wiring Diagrams

Indoor Unit Wiring Diagram (13NKV)

Presents the wiring schematic for the indoor unit of the 13NKV model, including a simple failure diagnosis guide.

Indoor Unit Wiring Diagram (16NKV)

Shows the wiring diagram for the indoor unit of the 16NKV model, with a basic troubleshooting checklist.

Outdoor Unit Wiring Diagram

Details the wiring connections for the outdoor unit, illustrating the electrical components and their interconnections.

Electrical Parts Specifications

Indoor Unit Electrical Parts (13NKV)

Lists electrical components used in the indoor unit for the 13NKV model, with their types and specifications.

Indoor Unit Electrical Parts (16NKV)

Details the electrical parts for the 16NKV indoor unit, including model numbers and specific ratings.

Outdoor Unit Electrical Parts (13NAV)

Specifies the electrical components for the 13NAV outdoor unit, including part names, models, and ratings.

Outdoor Unit Electrical Parts (16NAV)

Provides a list of electrical parts for the 16NAV outdoor unit, detailing their types and performance ratings.

Refrigerant Cycle Diagrams

Refrigerant Cycle Diagram (13 Series)

Visual representation of the refrigerant flow for the 13NKV/13NAV models, detailing components and connections.

Refrigerant Cycle Diagram (16 Series)

Diagram showing the refrigerant path for the 16NKV/16NAV models, highlighting key components and specifications.

Operation Data for Cooling and Heating

Presents key operating data such as pressure, temperature, and fan/compressor speeds under specific conditions.

Control Block Diagrams

Indoor Unit Control Block Diagram

Illustrates the internal control logic of the indoor unit, showing the MCU, sensors, and communication interfaces.

Outdoor Unit Control Block Diagram (Inverter)

Depicts the control system of the outdoor unit's inverter assembly, including sensors and motor control circuits.

Air Conditioner Operation Descriptions

8-1. Air Conditioner Control Overview

Explains the overall control architecture, roles of indoor/outdoor controllers, and capacity variable system.

8-2. Operation Modes and Features

Details various operation modes (Cooling, DRY, Heating, AUTO), fan control, louvers, and special functions.

8-3. Operation Circuit Description

Explains the logic behind cooling capacity, prevent-freezing, current release, and fan speed settings.

8-4. Temporary and Auto Restart Operations

Covers temporary auto/cooling operations and setting up the auto restart function.

8-5. Filter Check Lamp and Remote Control

Details the filter check indicator and the functions and display of the wireless remote control.

Air Conditioner Installation Procedures

9-1. Safety Cautions

Crucial safety warnings and precautions covering electrical work, handling, and environmental considerations.

9-1. Installation Diagrams and Parts

Illustrates unit placement, piping, and lists included accessories and optional parts.

9-1. Installation and Servicing Tools

Specifies new tools for R410A systems and their changes compared to R22 tools.

9-2. Indoor Unit Installation

Procedures for selecting place, mounting, wiring, and fixing the indoor unit.

9-3. Outdoor Unit Installation

Guides for outdoor unit placement, piping, evacuation, wiring, and leak testing.

Troubleshooting Air Conditioner Faults

10-1. Initial Confirmation and Primary Judgment

Basic checks for power, voltage, operation status, and initial troubleshooting methods.

10-2. Indoor Unit Fault Diagnosis

Uses flashing LEDs and remote control check codes for indoor unit fault identification.

10-3. Symptom-Based Troubleshooting

Systematic troubleshooting flowcharts for indoor/outdoor unit issues and wiring.

10-4. Specific Error Code Diagnostics

Guides for diagnosing check codes 1C and 1E, related to miswiring and sensor errors.

10-5. Outdoor Unit Component Diagnosis

Summarized diagnosis for the outdoor unit inverter, fan motor, and other key components.

10-6. Main Parts Checking Procedures

Methods for testing P.C. boards, sensors, motors, and capacitors for proper function.

Replacing Main Air Conditioner Parts

11-1. Indoor Unit Part Replacement Procedures

Step-by-step guides for removing and replacing key indoor unit components like the front panel, electrical parts, and fan motor.

11-2. Microcomputer Replacement

Instructions for replacing the microcomputer, including precautions for handling the P.C. board and associated parts.

11-3. Outdoor Unit Component Replacement

Details the procedures for disassembling and replacing major outdoor unit parts, including cabinets, inverter, and reactor.

Exploded Views and Parts Lists

12-1. Indoor Unit Exploded View (E-Parts)

Provides an exploded diagram and parts list for the indoor unit's electronic components assembly.

12-2. Indoor Unit Exploded View

Detailed exploded view of the indoor unit, listing all parts with their corresponding location and part numbers.

12-3. Outdoor Unit Exploded View (13NAV)

Exploded diagram and comprehensive parts list for the outdoor unit of the 13NAV model.

12-4. Outdoor Unit Exploded View (16NAV)

Presents an exploded view and parts list for the outdoor unit of the 16NAV model.

12-5. Outdoor Unit Exploded View (E-Parts)

Shows an exploded diagram and parts list for the electronic components assembly of the outdoor unit.

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