Toshiba MMU-UP0481HP-E User Manual

AIR CONDITIONER (MULTI TYPE)
SERVICE MANUAL
Indoor unit
<4-way cassette type>
MMU-UP0091HP-E(TR)
MMU-UP0121HP-E(TR)
MMU-UP0151HP-E(TR)
MMU-UP0181HP-E(TR)
MMU-UP0241HP-E(TR)
MMU-UP0271HP-E(TR)
MMU-UP0301HP-E(TR)
MMU-UP0361HP-E(TR)
MMU-UP0481HP-E(TR)
MMU-UP0561HP-E(TR)
<Ceiling type>
MMC-UP0151HP-E(TR)
MMC-UP0181HP-E(TR)
MMC-UP0241HP-E(TR)
MMC-UP0271HP-E(TR)
MMC-UP0361HP-E(TR)
MMC-UP0481HP-E(TR)
MMC-UP0561HP-E(TR)
<Concealed Duct Standard type>
MMD-UP0051BHP-E
MMD-UP0071BHP-E(TR)
MMD-UP0091BHP-E(TR)
MMD-UP0121BHP-E(TR)
MMD-UP0151BHP-E(TR)
MMD-UP0181BHP-E(TR)
MMD-UP0241BHP-E(TR)
MMD-UP0271BHP-E(TR)
MMD-UP0301BHP-E(TR)
MMD-UP0361BHP-E(TR)
MMD-UP0481BHP-E(TR)
MMD-UP0561BHP-E(TR)
<Concealed Duct High Static Pressure type>
MMD-UP0181HP-E(TR)
MMD-UP0241HP-E(TR)
MMD-UP0271HP-E(TR)
MMD-UP0361HP-E(TR)
MMD-UP0481HP-E(TR)
MMD-UP0561HP-E(TR)
MMD-UP0721HP-E(TR)
MMD-UP0961HP-E(TR)
<Concealed Duct High Static Pressure
fresh air intake type>
MMD-UP0481HFP-E(TR)
MMD-UP0721HFP-E(TR)
MMD-UP0961HFP-E(TR)
MMD-UP1121HFP-E(TR)
MMD-UP1281HFP-E(TR)
<Console type>
MML-UP0071NHP-E(TR)
MML-UP0091NHP-E(TR)
MML-UP0121NHP-E(TR)
MML-UP0151NHP-E(TR)
MML-UP0181NHP-E(TR)
<High wall type>
MMK-UP0031HP-E(TR)
MMK-UP0051HP-E(TR)
MMK-UP0071HP-E(TR)
MMK-UP0091HP-E(TR)
MMK-UP0121HP-E(TR)
MMK-UP0151HP-E(TR)
MMK-UP0181HP-E(TR)
MMK-UP0241HP-E(TR)
MMK-UP0031HPL-E(TR)
MMK-UP0051HPL-E(TR)
MMK-UP0071HPL-E(TR)
MMK-UP0091HPL-E(TR)
MMK-UP0121HPL-E(TR)
MMK-UP0151HPL-E(TR)
MMK-UP0181HPL-E(TR)
MMK-UP0241HPL-E(TR)
FILE NO. SVM-20095
January, 2021

Toshiba MMU-UP0481HP-E Specifications

General

Brand	Toshiba
Model	MMU-UP0481HP-E
Category	Air Conditioner
Language	English

Summary

PRECAUTIONS FOR SAFETY

1. SPECIFICATIONS

1-1. 4-way cassette type

Technical specifications for 4-way cassette type indoor units.

1-2. Ceiling type

Technical specifications for ceiling type indoor units.

1-3. Concealed Duct Standard type

Technical specifications for concealed duct standard type indoor units.

1-4. Concealed Duct High Static Pressure type

Technical specifications for concealed duct high static pressure type indoor units.

1-5. Concealed Duct High Static Pressure fresh air intake type

Technical specifications for concealed duct high static pressure fresh air intake units.

1-6. Console type

Technical specifications for console type indoor units.

1-7. High wall type

Technical specifications for high wall type indoor units.

3. WIRING DIAGRAMS

3-1. 4-way cassette type

3-2. Ceiling type

3-3. Concealed Duct Standard type

3-4. Concealed Duct High Static Pressure type

3-5. Concealed Duct High Static Pressure fresh air intake type

3-6. Console type

3-7. High wall type

5. REFRIGERANT CYCLE DIAGRAM

6. CONTROL OUTLINE

Control Specifications

Details control specifications and functions like power reset, operation mode selection, and temperature control.

8. APPLIED CONTROL AND FUNCTIONS (INCLUDING CIRCUIT CONFIGURATION)

8-1. Indoor controller block diagram (MCC-1643)

8-2. Indoor controller block diagram (MCC-1720)

8-3. Indoor controller block diagram (MCC-1696)

8-4. Indoor Print Circuit Board

8-5. Test run of indoor unit

Procedure for performing cooling/heating test runs using the remote controller.

8-6. Method to set indoor unit function DN code

Steps to set indoor unit function DN codes using a wired remote controller.

8-7. Applied control of indoor unit

Details on applying control systems using remote location ON/OFF boxes.

9. TROUBLESHOOTING

9-1. Overview

9-2. Troubleshooting method

Methods for identifying trouble sites using check codes and displays.

9-3. Troubleshooting based on information displayed on remote controller

Troubleshooting guided by information shown on the remote controller.

9-4. Check Codes Displayed on Remote Controller and SMMS series Outdoor Unit (7-Segment Display on I/F Board) and Locations to Be Checked

List of check codes from remote controller and outdoor unit, with locations and checks.

9-5. Diagnostic Procedure for Each Check Code (Indoor Unit)

Step-by-step diagnostic procedures for indoor unit check codes.

10. P.C. BOARD EXCHANGE PROCEDURES

10-1. Replacement of indoor P.C. boards

Procedures for replacing indoor P.C. boards, including EEPROM data handling.

12. EXPLODED VIEWS AND PARTS LIST