Toshiba MMD-UP0121BHP-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 MMD-UP0121BHP-E Specifications

General

Power Supply	220-240V, 50Hz
Refrigerant	R410A
Indoor Unit Weight	9 kg
Cooling Capacity	12000 BTU/h
Operating Temperature (Cooling)	18-43°C

Summary

PRECAUTIONS FOR SAFETY

1. SPECIFICATIONS

1-1. 4-way cassette type

Specifications for 4-way cassette type indoor units, covering cooling, heating, electrical characteristics, and dimensions.

1-2. Ceiling type

Specifications for ceiling type indoor units, covering cooling, heating, electrical characteristics, and dimensions.

1-3. Concealed Duct Standard type

1-4. Concealed Duct High Static Pressure type

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

1-6. Console type

1-7. High wall type

3. WIRING DIAGRAMS

3-1. 4-way cassette type

Wiring diagram for 4-way cassette type indoor units, illustrating electrical connections for various components.

3-2. Ceiling type

Wiring diagram for ceiling type indoor units, illustrating electrical connections for various components.

3-3. Concealed Duct Standard type

Wiring diagram for concealed duct standard type indoor units, illustrating electrical connections for various components.

3-4. Concealed Duct High Static Pressure type

Wiring diagram for concealed duct high static pressure type indoor units, illustrating electrical connections for various components.

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

Wiring diagram for concealed duct high static pressure fresh air intake type indoor units, illustrating electrical connections for various components.

3-6. Console type

Wiring diagram for console type indoor units, illustrating electrical connections for various components.

3-7. High wall type

Wiring diagram for high wall type indoor units, illustrating electrical connections for various components.

4. PARTS RATING

5. REFRIGERANT CYCLE DIAGRAM

6. CONTROL OUTLINE

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

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

8-7. Applied control of indoor unit

Control system using Remote location ON/OFF control box (TCB-IFCB-4E2)

Manual address setting using the remote controller

Changing the indoor unit address using a remote controller

Check code clearing function

Monitoring function of wired remote controller

9. TROUBLESHOOTING

9-1. Overview

9-2. Troubleshooting method

Guide to identifying check codes and troubleshooting issues based on displays from various devices and components.

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

Procedure for troubleshooting based on information displayed on the remote controller, including check code history.

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

Comprehensive list of check codes from remote controllers and outdoor units, detailing descriptions, system status, and check items.

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

Step-by-step diagnostic procedures for common indoor unit check codes to identify and resolve issues.

9-7. Maintenance list

10. P.C. BOARD EXCHANGE PROCEDURES

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

Procedures for replacing the indoor unit's P.C. board, including EEPROM data backup and restoration.

12. EXPLODED VIEWS AND PARTS LIST

12-1. 4-way cassette type

12-2. Ceiling type

12-3. Concealed Duct Standard type

12-4. Concealed Duct High Static Pressure type

12-5. Concealed Duct High Static Pressure fresh air intake type

12-6. Console type

12-7. High wall type