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Toshiba RAS-M07N3KV2-E User Manual

Toshiba RAS-M07N3KV2-E
77 pages
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R410A
SERVICE MANUAL
SPLIT TYPE
Indoor Unit
<High Wall, Heat Pump Type>
January, 2013
FILE NO. SVM-12072
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RAS-M07N3KV2-E

Table of Contents

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Toshiba RAS-M07N3KV2-E Specifications

General IconGeneral
BrandToshiba
ModelRAS-M07N3KV2-E
CategoryAir Conditioner
LanguageEnglish

Summary

1. SAFETY PRECAUTIONS

For General Public Use

Power supply cord requirements for outdoor appliance use.

New Refrigerant Air Conditioner Installation

Precautions for R410A refrigerant and installation.

DANGER Warnings

Critical safety warnings for installation and electrical work.

WARNING

CAUTION

2. SPECIFICATIONS

Unit Specs (Capacity, Power, Dimensions)

Technical data for unit capacities, power, and dimensions.

Piping, Wiring, and Accessories

Information on connection types, wiring, and included items.

3. CONSTRUCTION VIEWS

Indoor Unit Dimensions and Mounting

Diagrams illustrating the physical dimensions and mounting of the indoor unit.

Remote Controller Holder Dimensions

Diagrams showing dimensions for remote controller holders.

4. WIRING DIAGRAM

5. SPECIFICATIONS OF ELECTRICAL PARTS

6. REFRIGERANT CYCLE DIAGRAM

7. CONTROL BLOCK DIAGRAM

8. OPERATION DESCRIPTION

8-1. Outline of Air Conditioner Control

Overview of control logic between indoor and outdoor units.

8-2. Operation Description

Detailed explanation of various operational modes and functions.

8-3. Auto Restart Function

How the auto restart feature works and how to set it.

8-4. Remote Controller and Its Functions

Explanation of remote controller parts and their functions.

8. OPERATION DESCRIPTION (Continued)

Basic Operation & Fan Control

Covers basic operation, mode selection, and fan control.

Specific Operation Modes

Explains ECO, Temporary, Self-Cleaning, and other modes.

Remote Control Operations

Details on using the remote for various functions.

8. OPERATION DESCRIPTION (Continued)

1. Operation Control Details

Describes how the system receives and processes operation commands.

2. Operating Mode Selection

Explains mode selection for 2-room operation.

3. Cooling/Heating Operation

Details how cooling and heating operations are controlled.

8. OPERATION DESCRIPTION (Continued)

4. AUTO Operation

How the unit automatically selects cooling or heating mode.

5. DRY Operation

Explanation of the dehumidification mode and fan speed control.

8. OPERATION DESCRIPTION (Continued)

2. Indoor Fan Motor Control (Cooling)

Details fan speed settings for cooling and AUTO modes.

8. OPERATION DESCRIPTION (Continued)

2. Indoor Fan Motor Control (Heating)

Fan speed control details for heating operation.

8. OPERATION DESCRIPTION (Continued)

3. Capacity Control

How compressor speed adjusts capacity based on temperature.

4. Release Protective Control

Controls to protect against extreme heat exchanger temperatures.

8. OPERATION DESCRIPTION (Continued)

5. Louver Control

How louvers control air direction and swing.

8. OPERATION DESCRIPTION (Continued)

6. ECO Operation

Details on the energy-saving ECO mode for cooling and heating.

8. OPERATION DESCRIPTION (Continued)

7. Temporary Operation

How to perform temporary AUTO or COOL operation.

8. Self-Cleaning Function

Purpose and operation of the self-cleaning feature.

8. OPERATION DESCRIPTION (Continued)

9. Self-Cleaning Function

Flowchart for setting or canceling self-cleaning.

10. Remote-A or B Selection

How to set remote control for multiple units.

8. OPERATION DESCRIPTION (Continued)

11. QUIET Mode

Operation of the quiet mode for reduced fan noise.

12. COMFORT SLEEP

Functionality of the comfort sleep mode for energy saving.

13. Short Timer

Purpose and setting of the short timer.

8. OPERATION DESCRIPTION (Continued)

14. One-Touch Comfort

Fully automated operation for preferred conditions.

15. Hi-POWER Mode

Operation for faster cooling/heating and increased fan speed.

16. FILTER Indicator

How the filter indicator works and how to reset it.

8. OPERATION DESCRIPTION (Continued)

8-3. Auto Restart Function

How to set or cancel the auto restart function.

8. OPERATION DESCRIPTION (Continued)

8-4. Remote Control Operations

Explains operation of ONE-TOUCH, AUTO, and COOL/HEAT modes.

8. OPERATION DESCRIPTION (Continued)

4. DRY OPERATION

Details on dehumidification mode and temperature settings.

5. Hi-POWER OPERATION

How to start/stop Hi-POWER mode for faster cooling.

6. ECO OPERATION

How to start/stop ECO mode for energy saving.

7. TEMPORARY OPERATION

Procedure for temporary operation without remote control.

8. TIMER OPERATION

Setting ON/OFF timers and daily timers.

8. OPERATION DESCRIPTION (Continued)

9. PRESET OPERATION

Setting and operating preferred user settings for future use.

10. AUTO RESTART OPERATION

How to set or cancel auto restart after power failure.

11. QUIET OPERATION

How to operate in quiet mode for reduced fan noise.

12. COMFORT SLEEP OPERATION

How comfort sleep mode saves energy and turns off automatically.

8. OPERATION DESCRIPTION (Continued)

8-3. Auto Restart Function

How to cancel the auto restart function.

8-3-2. How to Set the Auto Restart Function

Step-by-step guide to setting the auto restart function.

8-3-3. Power Failure During Timer Operation

How timer settings are affected by power failure.

8. OPERATION DESCRIPTION (Continued)

8-4. Remote Control and Its Functions

Lists and describes remote controller buttons and indicators.

8-4-2. Operation of Remote Control

Explains how to use ONE-TOUCH, AUTO, and COOL/HEAT modes.

8. OPERATION DESCRIPTION (Continued)

4. DRY OPERATION

Details on dehumidification mode and temperature settings.

5. Hi-POWER OPERATION

How to start/stop Hi-POWER mode for faster cooling.

6. ECO OPERATION

How to start/stop ECO mode for energy saving.

7. TEMPORARY OPERATION

Procedure for temporary operation without remote control.

8. TIMER OPERATION

Setting ON/OFF timers and daily timers.

8. OPERATION DESCRIPTION (Continued)

9. PRESET OPERATION

Setting and operating preferred user settings for future use.

10. AUTO RESTART OPERATION

How to set or cancel auto restart after power failure.

11. QUIET OPERATION

How to operate in quiet mode for reduced fan noise.

12. COMFORT SLEEP OPERATION

How comfort sleep mode saves energy and turns off automatically.

8. OPERATION DESCRIPTION (Continued)

9. PRESET OPERATION

Setting and operating preferred user settings for future use.

10. AUTO RESTART OPERATION

How to set or cancel auto restart after power failure.

11. QUIET OPERATION

How to operate in quiet mode for reduced fan noise.

12. COMFORT SLEEP OPERATION

How comfort sleep mode saves energy and turns off automatically.

8. OPERATION DESCRIPTION (Continued)

8-4-3. Remote Controller Indications

Explains all indications on the remote controller display.

9. INSTALLATION PROCEDURE

9-1. Installation Diagram

Visual guide for installing indoor and outdoor units.

Loading Batteries

Instructions for installing batteries in the wireless remote controller.

9. INSTALLATION PROCEDURE (Continued)

9-2. Installation Parts & Outdoor Unit Fixing

Information on optional parts and outdoor unit mounting.

9. INSTALLATION PROCEDURE (Continued)

9-2-2. Accessory and Installation Parts

Lists all included accessories and installation components.

9. INSTALLATION PROCEDURE (Continued)

9-2-3. Installation/Servicing Tools

Lists new tools required for R410A and changes from R22 models.

9. INSTALLATION PROCEDURE (Continued)

9-3. Indoor Unit Installation

Details on selecting the installation place for the indoor unit.

9-3-2. Cutting Hole & Mounting Plate

Procedures for cutting wall holes and mounting the installation plate.

Remote Control Location

Guidelines for choosing an optimal remote control reception location.

9. INSTALLATION PROCEDURE (Continued)

9-3-3. Wiring Connection

Steps for connecting the power supply and control cables.

9. INSTALLATION PROCEDURE (Continued)

Wired Remote Controller Connection

Instructions for wired remote control connection.

Piping and Drain Hose Installation

Procedures for piping and drain hose setup.

9. INSTALLATION PROCEDURE (Continued)

Air Inlet Grille Installation

Steps for attaching the air inlet grille.

Piping and Drain Hose Forming

Instructions for shaping pipes and drain hoses.

9. INSTALLATION PROCEDURE (Continued)

Fixing Drain Cap

Procedure for securing the drain cap.

Left-hand Piping Connection

Details on piping connection for left-side installations.

9. INSTALLATION PROCEDURE (Continued)

9-3-5. Indoor Unit Fixing

Steps for securely attaching the indoor unit to the installation plate.

9-3-6. Drainage

Instructions for ensuring proper drain hose slope and connection.

9. INSTALLATION PROCEDURE (Continued)

9-4. Others (Remote Control A-B, Test Operation)

Covers remote control A-B selection and test operation.

9-4-3. Auto Restart Setting

How to set the auto restart function.

10. HOW TO DIAGNOSE THE TROUBLE

Inverter Precautions

Introduction to troubleshooting procedures and inverter precautions.

10. HOW TO DIAGNOSE THE TROUBLE (Continued)

High Voltage Safety Precautions

Safety warnings for handling high-voltage components.

10. HOW TO DIAGNOSE THE TROUBLE (Continued)

10-1. First Confirmation

Initial checks for power supply, voltage, and normal operations.

Normal Operation Identification

Identifies normal program operations that might be mistaken for faults.

10. HOW TO DIAGNOSE THE TROUBLE (Continued)

10-2. Primary Judgment

Methods for initial troubleshooting diagnosis.

10-3. Judgment by Flashing LED

Interpreting LED indicators for self-diagnosis codes.

10. HOW TO DIAGNOSE THE TROUBLE (Continued)

10-4. Self-Diagnosis by Remote Controller

How to use the remote in service mode for self-diagnosis.

Service Mode Operation

Step-by-step guide to accessing and using service mode.

10. HOW TO DIAGNOSE THE TROUBLE (Continued)

10-4-2. Caution at Servicing

Important precautions to follow after servicing.

Check Code Troubleshooting Table

Detailed check codes for diagnosis and actions.

10. HOW TO DIAGNOSE THE TROUBLE (Continued)

Troubleshooting Check Codes (Part 2)

More check codes for diagnosis and actions.

10. HOW TO DIAGNOSE THE TROUBLE (Continued)

10-5. Symptom-Based Troubleshooting

Troubleshooting based on observed symptoms.

Primary Check for Power Issues

Initial checks for power issues and basic components.

10. HOW TO DIAGNOSE THE TROUBLE (Continued)

Power Not On After PC Board Replacement

Troubleshooting steps if power remains off after PC board replacement.

10. HOW TO DIAGNOSE THE TROUBLE (Continued)

Indoor Fan Motor Does Not Operate

Troubleshooting steps for a non-operating indoor fan motor.

10. HOW TO DIAGNOSE THE TROUBLE (Continued)

AC Fan Motor Inspection Procedure

Steps to inspect the AC fan motor windings and voltage.

10. HOW TO DIAGNOSE THE TROUBLE (Continued)

Remote Control Troubleshooting

Flowchart for diagnosing remote control issues.

10-5-2. Wiring Failure Diagnosis

Diagnosing issues related to interconnecting and serial signal wires.

10. HOW TO DIAGNOSE THE TROUBLE (Continued)

Outdoor Unit Not Operating Diagnosis

Checks for voltage and transmission to diagnose outdoor unit issues.

Outdoor Unit Stops After Operation

Troubleshooting steps when the outdoor unit stops after operation.

10. HOW TO DIAGNOSE THE TROUBLE (Continued)

10-6. Main Parts Check

Procedure for checking pulse motor valve and sensors.

10. HOW TO DIAGNOSE THE TROUBLE (Continued)

10-7. Outdoor Unit Trouble Diagnosis

Flowchart for diagnosing inverter assembly issues.

Inverter Assembly Diagnosis

Steps to check compressor, fan motor, and capacitor.

10. HOW TO DIAGNOSE THE TROUBLE (Continued)

10-8. Main Parts Check (PC Board)

Procedures for checking the PC Board.

10-8-1. Indoor PC Board Check

Precautions and procedures for inspecting the indoor PC board.

10. HOW TO DIAGNOSE THE TROUBLE (Continued)

Check Procedures

Detailed checks for power supply, compressor, and fan motor.

10. HOW TO DIAGNOSE THE TROUBLE (Continued)

10-8-2. PC Board Layout

Diagram showing the layout of the indoor PC board.

Sensor Characteristic Table

Resistance values for temperature sensors at different temperatures.

10. HOW TO DIAGNOSE THE TROUBLE (Continued)

10-8-3. Indoor Unit Parts Check

Resistance checks for remote control and louver motor.

10-8-4. Outdoor Unit Parts Check

Resistance checks for compressor, fan motor, valves, and sensors.

10. HOW TO DIAGNOSE THE TROUBLE (Continued)

10-8-5. Checking Method for Each Part

Procedures for checking electrolytic capacitors and converter modules.

10. HOW TO DIAGNOSE THE TROUBLE (Continued)

10-9. Outdoor Fan Motor Check

Steps to test the outdoor fan motor's condition.

11. HOW TO REPLACE THE MAIN PARTS

General Safety and Replacement Warnings

General warnings and safety precautions for part replacement.

11. HOW TO REPLACE THE MAIN PARTS (Continued)

11-1. Indoor Unit - Front Panel

Procedure for removing and assembling the front panel of the indoor unit.

11. HOW TO REPLACE THE MAIN PARTS (Continued)

Indoor Unit - Electric Parts Box Assembly

Steps for removing and assembling the electric parts box.

11. HOW TO REPLACE THE MAIN PARTS (Continued)

Indoor Unit - Louver & Evaporator Replacement

Procedure to remove and replace the horizontal louver and heat exchanger.

11. HOW TO REPLACE THE MAIN PARTS (Continued)

Indoor Unit - Bearing Replacement

Procedure for removing and installing the bearing base.

11. HOW TO REPLACE THE MAIN PARTS (Continued)

Indoor Unit - Fan Motor Replacement

Steps for removing and installing the fan motor.

11. HOW TO REPLACE THE MAIN PARTS (Continued)

Indoor Unit - Cross Flow Fan Reassembly

Cautions and steps for reassembling the cross flow fan.

11. HOW TO REPLACE THE MAIN PARTS (Continued)

Indoor Unit - Microcomputer Replacement

Procedure for replacing the microcomputer.

12. EXPLODED VIEWS AND PARTS LIST

12-1. Indoor Unit Parts List

Exploded view and parts list for the indoor unit.

12. EXPLODED VIEWS AND PARTS LIST (Continued)

12-2. Indoor Unit Component List

Exploded view and parts list for specific indoor unit components.

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