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Toshiba Carrier MMU-AP0121MH2UL User Manual

Toshiba Carrier MMU-AP0121MH2UL
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R410A
FILE NO. A10-019-1
SERVICE MANUAL
AIR-CONDITIONER
SPLIT TYPE
PRINTED IN JAPAN, Dec., 2011 ToMo
INDOOR UNIT
4-Way Cassette Type
MMU-AP0182H2UL, MMU-AP0212H2UL,
MMU-AP0242H2UL, MMU-AP0302H2UL,
MMU-AP0362H2UL, MMU-AP0422H2UL
Compact 4-Way Cassette Type
MMU-AP0071MH2UL, MMU-AP0091MH2UL,
MMU-AP0121MH2UL, MMU-AP0151MH2UL,
MMU-AP0181MH2UL
Ceiling Type
MMC-AP0181H2UL, MMC-AP0241H2UL,
MMC-AP0361H2UL, MMC-AP0421H2UL
High Wall Type
MMK-AP0073H2UL, MMK-AP0093H2UL,
MMK-AP0123H2UL, MMK-AP0153H2UL,
MMK-AP0183H2UL, MMK-AP0243H2UL
4-Way Cassette Type
Compact 4-Way Cassette Type
Ceiling Type
High Wall Type
REVISION 1 : Dec.2011
Re-edit version.( file volume down)
Contents have NOT been changed.

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Toshiba Carrier MMU-AP0121MH2UL Specifications

General IconGeneral
BrandToshiba
ModelCarrier MMU-AP0121MH2UL
CategoryAir Conditioner
LanguageEnglish

Summary

SAFETY CAUTION

[Explanation of indications]

Formal explanation of symbols used for warnings and cautions in the manual.

[Explanation of illustrated marks]

Formal explanation of symbols used for prohibitions and mandatory actions.

[Confirmation of warning label on the main unit]

Instruction to verify warning labels are present on the main unit.

New Refrigerant (R410A)

Safety Caution Concerned to New Refrigerant

Safety precautions specific to the use of R410A refrigerant.

Cautions on Installation/Service

Important considerations for installing and servicing R410A systems.

1. SPECIFICATIONS

1-1. 4-Way Cassette Type

Technical specifications for the 4-Way Cassette indoor unit models.

1-2. Compact 4-Way Cassette Type

Technical specifications for the Compact 4-Way Cassette indoor unit models.

1-3. Ceiling Type

Technical specifications for the Ceiling type indoor unit models.

1-4. High Wall Type

Technical specifications for the High Wall type indoor unit models.

2. CONSTRUCTION VIEWS (EXTERNAL VIEWS)

2-1. 4-Way Cassette Type

External views and dimensions for 4-Way Cassette indoor units.

2. CONSTRUCTION VIEWS (EXTERNAL VIEWS)

2-2. Compact 4-Way Cassette Type

External views and dimensions for Compact 4-Way Cassette indoor units.

2. CONSTRUCTION VIEWS (EXTERNAL VIEWS)

2-3. Ceiling Type

External views and dimensions for Ceiling type indoor units.

2. CONSTRUCTION VIEWS (EXTERNAL VIEWS)

2-4. High Wall Type

External views and dimensions for High Wall type indoor units.

3. WIRING DIAGRAM

3-1. 4-Way Cassette Type

Wiring diagrams for 4-Way Cassette indoor units.

3. WIRING DIAGRAM

3-2. Compact 4-Way Cassette Type

Wiring diagrams for Compact 4-Way Cassette indoor units.

3. WIRING DIAGRAM

3-3. Ceiling Type

Wiring diagrams for Ceiling type indoor units.

3. WIRING DIAGRAM

3-4. High Wall Type

Wiring diagrams for High Wall type indoor units.

4. PARTS RATING

4-1. 4-Way Cassette Type

Parts ratings for 4-Way Cassette indoor unit models.

4-2. Compact 4-Way Cassette Type

Parts ratings for Compact 4-Way Cassette indoor unit models.

4-3. Ceiling Type

Parts ratings for Ceiling type indoor unit models.

4-4. High Wall Type

Parts ratings for High Wall type indoor unit models.

5. REFRIGERATING CYCLE DIAGRAM

6. CONTROL OUTLINE

6-1. 4-Way Cassette Type, Compact 4-Way Type, Ceiling Type

Control outline for specific indoor unit types.

6. CONTROL OUTLINE

6-2. High Wall Type

Control outline for High Wall type indoor units.

7. APPLIED CONTROL AND FUNCTION

7-1. Indoor Controller Block Diagram

Block diagram illustrating the indoor unit controller system.

7. APPLIED CONTROL AND FUNCTION

7-2. Indoor Printed Circuit Board

Details and diagrams of the indoor unit's main P.C. board.

7-3. Functions at test run

Cooling/Heating test run check

Procedure for performing cooling and heating system test runs.

7-4. Method to Set Indoor Unit Function DN Code

7-5. Applied Control in Indoor Unit

Remote location ON/OFF control box (TCB-IFCB-4UL)

Explanation of the remote ON/OFF control box interface.

7-5. Applied Control in Indoor Unit

Ventilating fan control from remote controller

Instructions for controlling the ventilating fan via remote.

7-5. Applied Control in Indoor Unit

Leaving-ON prevention control

Function to prevent units from staying in ON state unnecessarily.

Power peak-cut from indoor unit

Explanation of the indoor unit's power peak-cut function.

7-5. Applied Control in Indoor Unit

Address setup (Manual setting from Wired remote controller)

Procedure for manually setting indoor unit addresses.

7-5. Applied Control in Indoor Unit

Confirmation of indoor unit No. position

Method to check indoor unit addresses and positions.

7-5. Applied Control in Indoor Unit

7-5. Applied Control in Indoor Unit

7-5. Applied Control in Indoor Unit

Function to clear error

1. Clearing method from remote controller

Steps to clear errors using the remote controller.

Monitoring function of remote controller switch

Calling of display

Procedure to call up the service monitor mode for displaying information.

8. TROUBLESHOOTING

8-1. Overview

General introduction to troubleshooting procedures and applicable models.

8. TROUBLESHOOTING

8-2. Troubleshooting Method

General method for troubleshooting based on check codes.

8. TROUBLESHOOTING

8-3. Troubleshooting Based on Information Displayed on Remote Controller

Troubleshooting guide using remote controller displays.

8. TROUBLESHOOTING

Using indoor unit indicators (receiving unit light block) (wireless type)

Interpreting indicator lights for troubleshooting wireless units.

8. TROUBLESHOOTING

8-5. Sensor Characteristics

Indoor Unit

Sensor characteristics specific to indoor units.

9. DETACHMENTS

9-1. 4-Way Cassette Type

Procedures for detaching and attaching parts for 4-Way Cassette units.

9. DETACHMENTS

9-2. Compact 4-Way Cassette Type

Procedures for detaching and attaching parts for Compact 4-Way Cassette units.

9. DETACHMENTS

9-3. Ceiling Type

Procedures for detaching and attaching parts for Ceiling type units.

9. DETACHMENTS

9-4. High Wall Type

Procedures for detaching and attaching parts for High Wall type units.

10. P.C. BOARD EXCHANGE PROCEDURES

10-1. 4-Way Cassette type , Compact 4-Way Cassette type, Ceiling type

Procedures for exchanging P.C. boards for specific indoor unit types.

10. P.C. BOARD EXCHANGE PROCEDURES

10.2 High Wall type

Procedures for exchanging P.C. boards for High Wall type indoor units.

11. EXPLODED VIEWS AND PARTS LIST

11-1. 4-Way Cassette Type

Exploded views and parts list for 4-Way Cassette Type units.

11. EXPLODED VIEWS AND PARTS LIST

11-2. Compact 4-way Cassette Type

Exploded views and parts list for Compact 4-way Cassette Type units.

11. EXPLODED VIEWS AND PARTS LIST

11-3. Ceiling Type

Exploded views and parts list for Ceiling Type units.

11. EXPLODED VIEWS AND PARTS LIST

11-4. High Wall Type

Exploded views and parts list for High Wall Type units.

WARNINGS ON REFRIGERANT LEAKAGE

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