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Toshiba RAS-18SAV-E User Manual

Toshiba RAS-18SAV-E
127 pages
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R410A
FILE NO. SVM-10044
SERVICE MANUAL
RAS-18SAV2-E
SPLIT TYPE
Indoor Unit Outdoor Unit
<Console, Heat Pump Type> <Heat Pump Type>
RAS-B10UFV-E RAS-10SAV2-E
RAS-B13UFV-E RAS-13SAV2-E
RAS-B18UFV-E RAS-18SAV-E
April, 2010

Table of Contents

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Toshiba RAS-18SAV-E Specifications

General IconGeneral
BrandToshiba
ModelRAS-18SAV-E
CategoryAir Conditioner
LanguageEnglish

Summary

SAFETY PRECAUTIONS

New Refrigerant Air Conditioner Installation

Precautions for installing air conditioners using the new R410A refrigerant.

SPECIFICATIONS

Unit Specifications

Detailed specifications for indoor and outdoor units, including electrical characteristics and piping.

Combined Multi-Split Outdoor Unit Compatibility

Information on outdoor units compatible with B**UFV-E series indoor units.

Operation Characteristic Curves

Graphs showing operating characteristics and capacity variation ratios.

REFRIGERANT R410A

Safety During Installation/Servicing

Safety precautions for handling R410A refrigerant during installation and servicing.

Refrigerant Piping Installation

Guidelines for installing refrigerant piping, including materials and joints.

Required Tools for R410A

List of essential tools for R410A installation and servicing.

CONSTRUCTION VIEWS

Indoor Unit Construction

Diagrams illustrating the construction and dimensions of the indoor unit.

Outdoor Unit Construction

Diagrams showing the construction and installation dimensions of the outdoor unit.

WIRING DIAGRAMS

Wiring Diagram for RAS-B10/13UFV-E & RAS-10/13SAV2-E

Electrical wiring diagram for specific indoor and outdoor unit models.

Wiring Diagram for RAS-B18UFV-E & RAS-18SAV2-E

Electrical wiring diagram for specific indoor and outdoor unit models.

SPECIFICATIONS OF ELECTRICAL PARTS

Indoor Unit Electrical Parts

List of electrical components and their specifications for the indoor unit.

Outdoor Unit Electrical Parts

List of electrical components and their specifications for the outdoor unit.

REFRIGERANT CYCLE DIAGRAM

Refrigerant Cycle Diagram for RAS-B10/13UFV-E & RAS-10/13SAV2-E

Diagram illustrating the refrigerant flow for specific indoor and outdoor units.

Refrigerant Cycle Diagram for RAS-B18UFV-E & RAS-18SAV2-E

Diagram illustrating the refrigerant flow for specific indoor and outdoor units.

OPERATION DATA

Cooling Operation Data

Performance data for cooling operation under various temperature conditions.

Heating Operation Data

Performance data for heating operation under various temperature conditions.

CONTROL BLOCK DIAGRAM

Indoor Unit Control Block Diagram

Block diagram showing the control functions and signal flow of the indoor unit.

Outdoor Unit Control Block Diagram

Block diagram illustrating the control functions of the outdoor unit's inverter assembly.

OPERATION DESCRIPTION

Outline of Air Conditioner Control

Overview of the air conditioner's capacity-variable control system using DC motors.

Basic Operation

Description of fundamental operational procedures and controls.

Indoor Fan Motor Control

Details on how the indoor fan motor speed is controlled.

Outdoor Fan Motor Control

Explanation of the outdoor fan motor speed control mechanism.

Auto Restart Function

Details on the automatic restart function after power failure.

Remote Control

Explanation of the remote control functions and operations.

TROUBLESHOOTING (CHECK POINT)

Troubleshooting Common Issues

Checks for unit not operating or low cooling/heating performance.

Remote Control A-B Selection

Procedure for selecting remote control A or B for multi-unit installations.

Adjusting Unit Display Brightness

Steps to adjust the brightness of the indoor unit display panel.

INSTALLATION PROCEDURE

Installation Diagram of Indoor and Outdoor Units

Diagrams showing recommended placement and clearances for indoor and outdoor units.

Indoor Unit Installation

Detailed steps for installing the indoor unit, including cutting holes and mounting.

Outdoor Unit Installation

Guidelines for installing the outdoor unit, including placement and cold weather precautions.

OPTIONAL PARTS, ACCESSORIES AND TOOLS

Optional Installation Parts

List of optional parts and accessories included with the unit for installation.

Installation/Servicing Tools

Details on new tools required for R410A installation and servicing.

Indoor Unit

Indoor Unit Installation Place

Recommended locations and conditions for installing the indoor unit.

Indoor Unit Mounting and Hole Cutting

Procedures for cutting mounting holes and attaching the installation plate.

Indoor Unit Installation Steps

Step-by-step instructions for installing the indoor unit, including piping and wiring.

Concealed Installation Method

Specific instructions for installing the indoor unit in a concealed wall configuration.

OUTDOOR UNIT

Outdoor Unit Installation Place

Recommended locations and conditions for installing the outdoor unit.

Outdoor Unit Installation in Cold Regions

Precautions for installing the outdoor unit in areas with snowfall and cold temperatures.

Outdoor Unit Draining and Refrigerant Piping

Procedures for draining water and connecting refrigerant piping for the outdoor unit.

Outdoor Unit Evacuating, Wiring, and Electrical Work

Steps for evacuating the system, wiring connections, and electrical work.

OTHERS

Gas Leak Test

Procedure for performing a gas leak test on the refrigerant system.

Remote Control A-B Selection

Procedure for selecting remote control A or B for multi-unit installations.

Test Operation

Steps to perform a temporary test run of the air conditioner.

Auto Restart Setting

Instructions for setting the auto restart function after a power failure.

HOW TO DIAGNOSE THE TROUBLE

Troubleshooting Overview and Precautions

General procedure for diagnosing troubles and precautions for inverter handling.

Initial Confirmation and Judgment

Checking power, voltage, and basic operation status.

LED Error Code Diagnosis

Interpreting error codes indicated by indoor unit LED flashing patterns.

Remote Controller Self-Diagnosis

Using the remote controller in service mode to perform self-diagnosis and check codes.

Symptom-Based Troubleshooting

Step-by-step diagnosis based on specific symptoms like no power or fan issues.

HOW TO REPLACE THE MAIN PARTS

Front Panel Replacement

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

Electrical Parts Box (E-box) Replacement

Steps for removing and replacing the electrical parts box assembly.

Microcomputer

Microcomputer (P.C. Board) Layout

Diagram showing the layout of components on the indoor unit's P.C. board.

Outdoor Unit (RAS-10SAV2-E, RAS-13SAV2-E)

Outdoor Unit Detachment and Attachment

Procedures for disassembling and reassembling the outdoor unit's cabinets.

EXPLODED VIEWS AND PARTS LIST

Indoor Unit Parts List

Exploded view and parts list for the indoor unit.

Outdoor Unit Parts List

Exploded view and parts list for the outdoor unit.

P.C. Board Layouts

Diagrams showing the component layout on P.C. boards for various models.

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