Toshiba RAS-13UA-ES4 User Manual

FILE NO. SVM-05020
SERVICE MANUAL
AIR CONDITIONER
SPLIT WALL TYPE
RAS-13UKHP-ES4 / RAS-13UAH-ES4
RAS-10UKHP-ES4 / RAS-10UAH-ES4
RAS-13UKP-ES4 / RAS-13UA-ES4
RAS-10UKP-ES4 / RAS-10UA-ES4
RAS-07UKP-ES4 / RAS-07UA-ES4
May 2005

Toshiba RAS-13UA-ES4 Specifications

General

Cooling Capacity	3.5 kW
Heating Capacity	4.0 kW
Refrigerant	R32
Power Supply	220-240V, 50Hz
Coefficient of Performance (COP)	4.0
Model	RAS-13UA-ES4
Type	Air Conditioner
Noise Level (Indoor)	19 dB(A)
Outdoor Unit Dimensions (WxHxD)	780 x 550 x 290 mm

Summary

1. SPECIFICATIONS

2. CONSTRUCTION VIEWS

2-1. Indoor Unit

Details of the indoor unit's construction and dimensions.

2-2. Outdoor Unit (RAS-13UAH-ES4, RAS-10UAH-ES4, RAS-13UA-ES4, RAS-10UA-ES4)

Construction views and dimensions of specific outdoor unit models.

2-3. Outdoor Unit (RAS-07UA-ES4)

Construction views and dimensions of the RAS-07UA-ES4 outdoor unit.

3. WIRING DIAGRAM

3-1. RAS-13UKHP-ES4 / RAS-13UAH-ES4

Wiring diagram for specific indoor and outdoor unit models.

3-2. RAS-10UKHP-ES4 / RAS-10UAH-ES4

Wiring diagram for specific indoor and outdoor unit models.

3-3. RAS-13UKP-ES4 / RAS-13UA-ES4

Wiring diagram for specific indoor and outdoor unit models.

4. SPECIFICATION OF ELECTRICAL PARTS

4-1. Indoor Unit (RAS-13UKHP-ES4, RAS-10UKHP-ES4)

List of electrical parts for specified indoor units.

4-2. Outdoor Unit (RAS-13UAH-ES4)

List of electrical parts for specified outdoor units.

4-3. Outdoor Unit (RAS-13UA-ES4)

List of electrical parts for specified outdoor units.

5. REFRIGERATION CYCLE DIAGRAM

5-1. RAS-13UKHP-ES4/ RAS-13UAH-ES4

Refrigeration cycle diagram for specific models.

5-2. RAS-10UKHP-ES4 / RAS-10UAH-ES4

Refrigeration cycle diagram for specific models.

5-3. RAS-13UKP-ES4 / RAS-13UA-ES4

Refrigeration cycle diagram for specific models.

6. CONTROL BLOCK DIAGRAM

6-1. RAS-13UKHP-ES4 / RAS-13UAH-ES4, RAS-10UKHP-ES4 / RAS-10UAH-ES4

Control block diagram for specific models.

6-2. RAS-13UKP-ES4 / RAS-13UA-ES4, RAS-10UKP-ES4 / RAS-10UA-ES4, RAS-07UKP-ES4 / RAS-07UA-ES4

Control block diagram for specified models.

7. OPERATION DESCRIPTION

7-1. Outline of Air Conditioner Control

Overview of the air conditioner control system.

7-2. Description of Operation Circuit

Explanation of the operation circuit and control logic.

7-2-1. Fan only operation

How the unit operates in Fan only mode.

7-2-2. Cooling operation

How the unit operates in Cooling mode.

7-2-3. Dry operation

How the unit operates in Dry mode.

7-2-4. Heating operation

Heating operation details for heat pump models.

7-3. Hi POWER Mode

High power mode for enhanced cooling/heating.

7-4. High-Temperature Limit Control

Prevents excessive pressure increase by limiting indoor heat exchanger temp.

7-5. Low-Temperature Limit Control

Prevents indoor heat exchanger freezing by limiting low temp.

7-6. Defrost Operation

Operation to melt ice from outdoor heat exchanger during heating.

7-8. Auto Restart Function

Automatically restarts the unit after power interruption.

8. INSTALLATION PROCEDURE

8-1. Safety Cautions

Important safety warnings and precautions for installation.

8-2. Installation Diagram of Indoor and Outdoor Units

Visual guide for installing indoor and outdoor units.

8-3. Installation

8-3-1. Optional installation parts

List of optional parts for installation.

8-3-2. Accessory and installation parts

List of included accessories and installation parts.

8-3-3. Installation/Servicing tools

Tools required for installation and servicing of R410A systems.

8-4. Indoor Unit

8-4-1. Installation place

Recommended locations for installing the indoor unit.

8-4-2. Cutting a hole and mounting installation plate

Steps for preparing the wall and mounting the installation plate.

8-4-3. Electrical work

Instructions for electrical connections and power supply.

8-4-4. Piping and drain hose installation

Steps for installing pipes and drain hoses.

8-4-5. Indoor unit fixing

Steps for securely mounting the indoor unit.

8-4-6. Drainage

Instructions for proper drainage setup for the indoor unit.

8-5. Outdoor Unit

8-5-1. Installation place

Recommended locations for installing the outdoor unit.

8-5-2. Refrigerant piping connection

Detailed steps for connecting refrigerant pipes.

8-5-3. Evacuating

Procedure for evacuating air from the refrigerant system.

8-5-4. Wiring connection

Connecting the electrical wiring between units.

8-6. How to Set Remote Control Selector Switch

Set the remote control selector switch with the remote control

Setting the selector switch using the remote control.

8-7. Others

8-7-1. Gas leak test

Procedures to check for refrigerant gas leaks.

8-7-2. Test operation

Performing a test run of the unit.

9. TROUBLESHOOTING CHART

9-1. Troubleshooting Procedure

General steps for troubleshooting issues.

9-2. Basic Check Items

Fundamental checks before troubleshooting.

9-3. Primary Judgement

Initial assessment of system operation and faults.

9-4. Self-Diagnosis by Remote Control (Check Code)

Using remote control for fault diagnosis via check codes.

9-5. Troubleshooting Flowcharts

Step-by-step troubleshooting guides for common problems.

9-6. Troubleshooting for Remote Control (Including the Indoor P.C. Board)

Diagnosing remote control and indoor P.C. board issues.

10. PART REPLACEMENT

10-1. Indoor Unit

Procedures for replacing parts of the indoor unit.

10-2. Outdoor Unit

Procedures for replacing parts of the outdoor unit.

11. EXPLODED VIEWS AND PARTS LIST

11-1. Indoor Unit (E-Parts Assy) (For Heat pump model)

Exploded view and parts list for indoor unit heat pump models.

11-2. Indoor Unit (E-Parts Assy) (For Cooling model)

Exploded view and parts list for indoor unit cooling models.

11-3. Indoor Unit

Exploded view and parts list for the indoor unit.

11-4. Outdoor Unit (RAS-13UAH-ES4)

Exploded view and parts list for outdoor unit model RAS-13UAH-ES4.