Toshiba RAS-18UAX3 User Manual

SERVICE MANUAL
AIR-CONDITIONER
UNDER CEILING / CONSOLE TYPE
RAS-18UFHP-E3 / RAS-18UAH-E3
RAS-18UFP-E3 / RAS-18UA-E3
RAS-18UFPX3 / RAS-18UAX3
RAS-18UFP-AR3 / RAS-18UA-AR3
RAS-18UFPX3-T2 / RAS-18UAX3-T2
RAS-24UFHP-E3 / RAS-24UAH-E3
RAS-24UFP-E3 / RAS-24UA-E3
RAS-24UFPX3 / RAS-24UAX3
RAS-24UFP-AR3 / RAS-24UA-AR3
RAS-24UFPX3-T / RAS-24UAX3-T
FILE NO. SVM-04032
18 Class
(Heat pump model)
24 Class18 Class
(Cooling only model)
June 2004

Toshiba RAS-18UAX3 Specifications

General

Brand	Toshiba
Model	RAS-18UAX3
Category	Air Conditioner
Language	English

Summary

2. CONSTRUCTION VIEWS

2-1. Indoor Unit

Detailed diagrams and dimensions of the indoor unit for installation.

2-2. Outdoor Unit (RAS-18UAH-E3)

Diagrams and dimensions for the RAS-18UAH-E3 outdoor unit.

3. WIRING DIAGRAM

3-1. RAS-18UFHP-E3 / RAS-18UAH-E3

Wiring diagram for the RAS-18UFHP-E3/RAS-18UAH-E3 models.

3-6. RAS-24UFP-E3 / RAS-24UA-E3, RAS-24UFPX3 / RAS-24UAX3, RAS-24UFP-AR3 / RAS-24UA-AR3, RAS-24UFPX3-T / RAS-24UAX3-T

Wiring diagram for various 24-series RAS-24UFP/UA models.

4. SPECIFICATION OF ELECTRICAL PARTS

4-1. Indoor Unit

List of electrical components and specifications for the indoor unit.

4-7. Outdoor Unit (RAS-24UA-E3, RAS-24UAX3, RAS-24UAX3-T)

Electrical parts list for specific 24-series outdoor units.

5. REFRIGERATION CYCLE DIAGRAM

5-1. RAS-18UFHP-E3 / RAS-18UAH-E3

Refrigeration cycle diagram for RAS-18UFHP-E3/RAS-18UAH-E3.

5-5. RAS-24UFHP-E3 / RAS-24UAH-E3

Refrigeration cycle diagram for RAS-24UFHP-E3/RAS-24UAH-E3.

6. CONTROL BLOCK DIAGRAM

6-1. RAS-18UFHP-E3, RAS-24UFHP-E3

Control block diagram for RAS-18UFHP-E3/RAS-24UFHP-E3 units.

7. OPERATION DESCRIPTION

7-1. Outline of Air Conditioner Control

Overview of how the air conditioner controls are managed.

7-2. Description of Operation Circuit

Description of how the operation circuit functions.

7-7. Auto Restart Function

Explanation of the automatic restart feature.

8. INSTALLATION PROCEDURE

8-1. Safety Cautions

Important safety guidelines for installation.

8-2. Installation Diagram of Indoor and Outdoor Units

Visual guide for installing indoor and outdoor units.

8-4. Indoor Unit

Specific installation instructions for the indoor unit.

8-5. Outdoor Unit

Specific installation instructions for the outdoor unit.

9. TROUBLESHOOTING CHART

9-1. Troubleshooting Procedure

General steps for troubleshooting the unit.

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

Using the remote control for self-diagnosis.

9-6. Troubleshooting for Indoor Unit

Specific troubleshooting for indoor unit issues.

9-9. Troubleshooting for Remote Control

Steps to troubleshoot remote control problems.

10. PARTS REPLACEMENT

10-1. Indoor Unit

Procedures for replacing parts in the indoor unit.

10-2. Outdoor Unit (RAS-18UAH-E3)

Parts replacement procedures for the RAS-18UAH-E3 outdoor unit.

11. EXPLODED VIEWS AND PARTS LIST

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

Exploded view and parts list for indoor unit E-Parts Assy.

11-3. Outdoor Unit (RAS-18UAH-E3)

Exploded view and parts list for RAS-18UAH-E3 outdoor unit.

11-8. Outdoor Unit (RAS -24UA-E3, RAS -24UAX3, RAS -24UAX3-T)

Exploded view and parts list for specific 24-series outdoor units.