Toshiba RAS-12UKPX4 - User Manual

FILE NO. SVM-05001-3
SERVICE MANUAL
AIR CONDITIONER
SPLIT WALL TYPE
RAS-13UKHP-E4 / RAS-13UAH-E4
RAS-10UKHP-E4 / RAS-10UAH-E4
RAS-13UKP-E4 / RAS-13UA-E4
RAS-10UKP-E4 / RAS-10UA-E4
RAS-13UKPX4 / RAS-13UAX4
RAS-10UKPX4 / RAS-10UAX4
RAS-12UKPX4 / RAS-12UAX4
RAS-07UKHP-E4 / RAS-07UAH-E4
RAS-07UKP-E4 / RAS-07UA-E4
RAS-07UKPX4 / RAS-07UAX4
Revised on Nov, 2005

Summary

Specifications

Indoor Unit Specifications

Details on dimensions, net weight, evaporator type, fan, air filter.

Outdoor Unit Specifications

Details on dimensions, net weight, condenser type, fan, compressor, safety device, etc.

Refrigerant and Piping Specs

Details on refrigerant type, rated amount, piping connections.

Electrical and Operational Specs

Details on power source, consumption, operational temperature ranges.

Construction Views

2-1. Indoor Unit Construction

Dimensional drawings and layout of the indoor unit components.

2-2. Outdoor Unit Construction

Dimensional drawings and layout for various outdoor units.

Wiring Diagram

3-1. RAS-13 UKHP-E4; RAS-13 UAH-E4 Wiring

Electrical wiring diagram for specific models.

3-2. RAS-10 UKHP-E4; RAS-10 UAH-E4 Wiring

Electrical wiring diagram for specific models.

Specification of Electrical Parts

4-1. Indoor Unit Electrical Parts

List and specifications of electrical parts for indoor units.

4-2. Outdoor Unit Electrical Parts

List and specifications of electrical parts for outdoor units.

Refrigeration Cycle Diagram

5-1. RAS-13 UKHP-E4; RAS-13 UAH-E4 Cycle Diagram

Refrigeration cycle diagram for specific models.

5-2. RAS-10 UKHP-E4; RAS-10 UAH-E4 Cycle Diagram

Refrigeration cycle diagram for specific models.

Control Block Diagram

6-1. Control Block Diagram for HP Models

Control block diagram for specific heat pump models.

6-2. Control Block Diagram for All Models

Control block diagram for multiple air conditioner models.

Operation Description

7-1. Outline of Air Conditioner Control

Overview of the air conditioner's control system and sensors.

7-2. Description of Operation Circuit

Explains the sequence of operations for different modes.

7-3. Hi POWER Mode Operation

Explains the Hi Power mode and its operation.

7-4. High-Temperature Limit Control

Describes control to prevent excessive refrigerating cycle pressure.

7-5. Low-Temperature Limit Control

Describes control to prevent indoor heat exchanger freezing.

7-6. Defrost Operation

Explains defrost operation for heat pump models.

7-8. Auto Restart Function

Explains the automatic restart feature after power loss.

Installation Procedure

8-1. Safety Cautions

Crucial safety precautions before and during installation.

8-2. Installation Diagram of Indoor and Outdoor Units

Visual guide for installing indoor and outdoor units.

8-4. Indoor Unit Installation

Procedures for installing the indoor unit.

8-5. Outdoor Unit Installation

Procedures for installing the outdoor unit.

8-5-3. Evacuating

Procedure for evacuating air from refrigerant lines.

8-6. Remote Control Selector Switch Setup

Procedure for setting remote control selector switch for multiple units.

8-7-1. Gas leak test

Instructions for performing a gas leak test.

Troubleshooting Chart

9-1. Troubleshooting Procedure

General steps to follow for troubleshooting.

9-2. Basic Check Items

Initial checks for common issues before detailed troubleshooting.

9-4. Remote Control Self-Diagnosis

Using the remote control for self-diagnosis and check codes.

9-5. Troubleshooting Flowcharts

Flowcharts for diagnosing operational issues.

9-5-1. Power Failure Troubleshooting

Troubleshooting steps for complete power failure.

9-5-3. Outdoor Unit Operation Failure

Troubleshooting steps when the outdoor unit fails to operate.

9-5-4. Compressor Operation Failure

Troubleshooting steps when the compressor fails to operate.

9-6. Remote Control Troubleshooting

Steps to troubleshoot remote control and indoor PC board issues.

Part Replacement

10-1. Indoor Unit Part Replacement

Procedures for disassembling and replacing indoor unit parts.

10-2. Outdoor Unit Part Replacement

Procedures for disassembling and replacing outdoor unit parts.

Exploded Views and Parts List

11-1. Indoor Unit (E-Parts Assy)

Exploded view and parts list for indoor unit (Heat pump model).

11-2. Indoor Unit (E-Parts Assy)

Exploded view and parts list for indoor unit (Cooling model).

11-3. Indoor Unit (RAS-07,10,13 UKHP-E4, UKP-E4)

Exploded view and parts list for specific indoor units.

11-5. Outdoor Unit (RAS-13 UAH-E4)

Exploded view and parts list for a specific outdoor unit.

Toshiba RAS-12UKPX4 Specifications