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Toshiba RAS-13N3KV-E User Manual

Toshiba RAS-13N3KV-E
105 pages
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R410A
SERVICE MANUAL
SPLIT TYPE
Indoor Unit Outdoor Unit
<High Wall, Heat Pump Type> <Heat Pump Type>
RAS-13N3KV-E RAS-13N3AV-E
July, 2012
FILE NO. SVM-12039
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Table of Contents

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Toshiba RAS-13N3KV-E Specifications

General IconGeneral
TypeSplit System
Cooling Capacity3.5 kW
Heating Capacity4.0 kW
RefrigerantR410A
Power Supply220-240V, 50Hz
Indoor Unit Weight9 kg

Summary

1. SAFETY PRECAUTIONS

2. SPECIFICATIONS

1-1. Specifications

Details specifications of indoor and outdoor units, including capacity, power, noise, dimensions, and weight.

2-3. Operation Characteristic Curve

Displays graphs showing compressor speed vs. current for cooling and heating modes.

2-4. Capacity Variation Ratio According to Temperature

Shows how cooling and heating capacity ratios vary with outdoor temperature.

3. REFRIGERANT R410A

3-1. Safety During Installation/Servicing

Highlights safety precautions for handling R410A refrigerant during installation and servicing.

3-2. Refrigerant Piping Installation

Covers requirements for piping materials, joints, and processing for R410A systems.

3-2-1. Piping Materials and Joints Used

Details specifications for annealed copper pipes and minimum joint thicknesses.

3-2-2. Processing of Piping Materials

Explains procedures and precautions for cutting, flaring, and connecting piping.

3-2-2. Flare Connecting Procedures and Precautions

Provides detailed steps and precautions for flare pipe connections and tightening torque.

3-3. Tools

3-3-1. Required Tools

Lists tools exclusive for R410A and general tools required for installation and servicing.

3-4. Recharging of Refrigerant

3-5. Brazing of Pipes

3-5-1. Materials for Brazing

Describes silver, phosphor bronze, and low-temperature brazing fillers for pipe joining.

3-5-2. Flux

Explains the necessity, characteristics, and types of flux used in brazing.

3-5-3. Brazing

Outlines brazing methods, including prevention of oxidation and material compatibility.

4. CONSTRUCTION VIEWS

4-1. Indoor Unit

Provides detailed diagrams and dimensions of the indoor unit components.

4-2. Outdoor Unit

Presents diagrams and dimensions for the outdoor unit, including various views and connections.

5. WIRING DIAGRAM

6. SPECIFICATIONS OF ELECTRICAL PARTS

6-1. Indoor Unit

Lists electrical parts for the indoor unit, including fan motor, sensors, and louver motor.

6-2. Outdoor Unit

Details electrical components for the outdoor unit, such as reactor, fan motor, sensors, and compressor.

7. REFRIGERANT CYCLE DIAGRAM

7-2. Operation Data

Provides operational data for cooling and heating, including temperatures, pressures, and speeds.

8. CONTROL BLOCK DIAGRAM

8-1. Indoor Unit

Illustrates the control block diagram for the indoor unit and its functions.

8-2. Outdoor Unit (Inverter Assembly)

Shows the control block diagram for the outdoor unit, including inverter and various control circuits.

9. OPERATION DESCRIPTION

9-1. Outline of Air Conditioner Control

Provides an overview of the air conditioner's control system, roles of indoor/outdoor units.

9-2. Operation Description

Details various operation modes and control functions of the air conditioner.

9-3. Auto Restart Function

Explains the auto restart feature, including how to set, cancel, and handle power failures.

9-4. Remote Control

Covers the functions of the remote controller, its display, and various operation modes.

10. INSTALLATION PROCEDURE

10-1. Installation Diagram of Indoor and Outdoor Units

Shows diagrams for the installation of indoor and outdoor units, including placement and connections.

10-2. Installation

Covers general installation aspects, including optional parts, accessories, and tools.

10-3. Indoor Unit

Details installation procedures specific to the indoor unit, covering placement, wiring, and fixing.

10-4. Outdoor Unit

Guides the installation process for the outdoor unit, including placement, piping, and electrical work.

10-5. Others

Covers additional installation procedures like gas leak testing, remote control setup, and test operation.

11. HOW TO DIAGNOSE THE TROUBLE

11-1. First Confirmation

Steps to confirm initial conditions like power supply, voltage, and normal program operation.

11-2. Primary Judgment

Methods for primary diagnosis, including flashing LEDs, self-diagnosis, and symptom judgment.

11-3. Judgment by Flashing LED of Indoor Unit

Interprets flashing LED codes on the indoor unit to identify protective circuit operations.

11-4. Self-Diagnosis by Remote Controller (Check Code)

Explains how to use the remote controller for self-diagnosis and interpret check codes.

11-4-1. How to Use Remote Controller in Service Mode

Provides detailed steps on how to access and use the remote controller's service mode.

11-4-2. Caution at Servicing

Offers cautions and procedures to follow after performing servicing and check codes.

11-5. Judgment of Trouble by Every Symptom

Guides on diagnosing troubles based on symptoms, covering indoor and outdoor unit issues.

11-5-1. Indoor Unit (Including Remote Controller)

Provides troubleshooting steps for indoor unit issues like power failure and fan motor problems.

11-5-2. Wiring Failure (Interconnecting and Serial Signal Wire)

Addresses issues related to wiring failures, including outdoor unit operation and stopping.

11-6. How to Check Simple the Main Parts

Outlines methods to check main components like pulse motor valves and temperature sensors.

11-7. How to Diagnose Trouble in Outdoor Unit

Provides methods for diagnosing problems within the outdoor unit's inverter assembly.

11-8. How to Check Simply the Main Parts

Details procedures for checking main parts like P.C. boards, sensors, and motors.

11-9. How to Simply Judge Whether Outdoor Fan Motor is Good or Bad

Guides on diagnosing the outdoor fan motor's condition based on symptoms and resistance checks.

12. HOW TO REPLACE THE MAIN PARTS

12-1. Indoor Unit

Provides step-by-step instructions for replacing main parts of the indoor unit, like the front panel and electric parts box.

12-2. Microcomputer

Details the procedure for replacing the microcomputer assembly in the indoor unit.

12-3. Outdoor Unit

Explains how to detach and attach main components of the outdoor unit, such as cabinets and fan motor.

13. EXPLODED VIEWS AND PARTS LIST

13-1. Indoor Unit (Part-E)

Shows an exploded view and parts list for the indoor unit, identifying components by location and part number.

13-2. Indoor Unit

Lists parts and their corresponding numbers for the indoor unit assembly.

13-3. Outdoor Unit

Provides an exploded view and parts list for the outdoor unit, mapping parts to location and numbers.

13-4. P.C. Board Layout

Illustrates the P.C. board layout for the unit, showing component placement and connections.

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