Toshiba MMD-AP0184BH-E User Manual

AIR CONDITIONER (MULTI TYPE)
SERVICE MANUAL
FILE No. A10-033-1
This service manual provides relevant explanations about new indoor unit (4 series). Please refer to
the following service manuals for each indoor units.
Indoor unit
<1-way Cassette Type (YH, SH)>
MMU-AP0074YH-E(-TR)
MMU-AP0094YH-E(-TR)
MMU-AP0124YH-E(-TR)
MMU-AP0154SH-E(-TR)
MMU-AP0184SH-E(-TR)
MMU-AP0244SH-E(-TR)
<Concealed Du ct Hig h Static
Pressu re Type>
MMD-AP0184H-E(-TR)
MMD-AP0244H-E(-TR)
MMD-AP0274H-E(-TR)
MMD-AP0364H-E(-TR)
MMD-AP0484H-E(-TR)
MMD-AP0724H-E(-TR)
MMD-AP0964H-E(-TR)
<Floor Standing Concealed Type>
MML-AP0074BH-E(-TR)
MML-AP0094BH-E(-TR)
MML-AP0124BH-E(-TR)
MML-AP0154BH-E(-TR)
MML-AP0184BH-E(-TR)
MML-AP0244BH-E(-TR)
<Comp act 4-way Cas sette Ty pe>
MMU-AP0074MH-E(-TR)
MMU-AP0094MH-E(-TR)
MMU-AP0124MH-E(-TR)
MMU-AP0154MH-E(-TR)
MMU-AP0184MH-E(-TR)
<Ceiling Type>
MMC-AP0154H-E(-TR)
MMC-AP0184H-E(-TR)
MMC-AP0244H-E(-TR)
MMC-AP0274H-E(-TR)
MMC-AP0364H-E(-TR)
MMC-AP0484H-E(-TR)
<Floor Standing Cabinet Type>
MML-AP0074H-E(-TR)
MML-AP0094H-E(-TR)
MML-AP0124H-E(-TR)
MML-AP0154H-E(-TR)
MML-AP0184H-E(-TR)
MML-AP0244H-E(-TR)
<Slim Du ct Type>
MMD-AP0074SPH-E(-TR)
MMD-AP0094SPH-E(-TR)
MMD-AP0124SPH-E(-TR)
MMD-AP0154SPH-E(-TR)
MMD-AP0184SPH-E(-TR)
<Floor Stan ding Type>
MMF-AP0154H-E(-TR)
MMF-AP0184H-E(-TR)
MMF-AP0244H-E(-TR)
MMF-AP0274H-E(-TR)
MMF-AP0364H-E(-TR)
MMF-AP0484H-E(-TR)
MMF-AP0564H-E(-TR)
<Concealed Duct Standard Type>
MMD-AP0074BH-E(-TR),
MMD-AP0124BH-E(-TR),
MMD-AP0154BH-E(-TR),
MMD-AP0184BH-E(-TR),
MMD-AP0274BH-E(-TR),
MMD-AP0364BH-E(-TR),
MMD-AP0564BH-E(-TR)
PRINTED IN JAPAN,
Jul, 2012, ToMo
Indoor unit
Model name:
4-way Cassette Type (MMU-AP
∗∗∗
∗∗∗
∗∗∗
∗∗∗
∗∗∗
2H) A08-004
2-way Cassette Type (2 series) (MMU-AP 2WH) A10-007
Fresh Air Intake Indoor Unit Type (MMD-AP 1HFE) A06-016
High-wall Type (2 series) (MMK-AP 2H) SVM-05052-1
High-wall Type (3 series) (MMK-AP 3H) SVM-09059
Other indoor units (1 series) A03-009, A03-010, A05-006, A05-007, A06-002
MMD-AP0094BH-E(-TR),
MMD-AP0244BH-E(-TR),
MMD-AP0304BH-E(-TR),
MMD-AP0484BH-E(-TR),
REVISION 1 : Mar.2012
Re-edit version.( file volume down)
Contents have NOT been changed.

Toshiba MMD-AP0184BH-E Specifications

General

Brand	Toshiba
Model	MMD-AP0184BH-E
Category	Air Conditioner
Language	English

Summary

Definition of Qualified Installer or Qualified Service Person

Agent Qualifications and knowledge

Details the qualifications and knowledge required for qualified installers and service personnel.

Precautions for Safety

Check earth wires

Instructions on verifying earth wire connections for electrical safety.

Prohibition of modification

Warning against product modification to prevent hazards.

Use specified parts

Emphasizes using only specified parts for safety and performance.

Wiring Diagrams

1-1. Compact 4-way cassette type

Electrical wiring diagram for the compact 4-way cassette indoor unit.

1-4. Concealed duct standard type

Wiring diagram for the concealed duct standard type indoor unit.

1-5. Concealed duct high static pressure type

Wiring diagram for the concealed duct high static pressure type indoor unit.

1-7. Ceiling type

Wiring diagram for the ceiling type indoor unit.

1-9. Floor standing concealed type

Wiring diagram for the floor standing concealed type indoor unit.

1-10. Floor standing type

Wiring diagram for the floor standing type indoor unit.

Parts Rating

2-1. Indoor unit

Lists specifications and ratings for indoor unit components.

Refrigerant Cycle Diagram

Control Outline

5 Fan speed control

Explanation of how fan speed is controlled based on temperature and mode.

10 Defrosting control

Details the defrosting control logic and procedures.

15 Operation standby

Describes the operation standby states and indicators.

16 Selection of central control mode

How to select and set the central control mode for indoor units.

19 Power saving mode

Explanation and settings for the power saving mode function.

Applied Control and Functions (Including Circuit Configuration)

5-1. Indoor controller block diagram

Block diagram illustrating the indoor unit controller and its connections.

5-2. Indoor printed circuit board

Detailed diagram of the indoor unit's main printed circuit board (PCB).

5-5. Method to set indoor unit function DN code

Procedure for setting indoor unit functions using DN codes via remote controller.

Troubleshooting

6-1. Overview

General introduction to troubleshooting procedures and required tools.

6-2. Troubleshooting method

Detailed troubleshooting guide based on check codes and displays.

6-4. Check codes displayed on remote controller and SMMS outdoor unit (7-segment display on I/F board) and locations to be checked

Table of check codes, their causes, and locations to check for faults.

6-5. Sensor characteristics

Resistance characteristics of indoor unit sensors at different temperatures.

P.C. Board Exchange Procedures

7-1. Replacement of indoor P.C. boards

Step-by-step instructions for replacing indoor unit P.C. boards.

Detachments

8-1. 1-way cassette (SH)

Procedure for detaching components of the 1-way cassette (SH) indoor unit.

8-2. Compact 4-way cassette

Procedure for detaching components of the compact 4-way cassette indoor unit.

8-4. Concealed duct standard

Procedure for detaching components of the concealed duct standard indoor unit.

8-6. Ceiling

Procedure for detaching components of the ceiling type indoor unit.

8-8. Floor standing cabinet

Procedure for detaching components of the floor standing cabinet indoor unit.

8-9. Floor standing type

Procedure for detaching components of the floor standing type indoor unit.

Exploded Diagram / Service Parts List

9-1. 1-way cassette type (YH)

Exploded view and parts list for the 1-way cassette type (YH) indoor unit.

9-3. Compact 4-way cassette type

Exploded view and parts list for the compact 4-way cassette type indoor unit.

9-5. Concealed duct standard type

Exploded view and parts list for the concealed duct standard type indoor unit.

9-7. Ceiling type

Exploded view and parts list for the ceiling type indoor unit.

9-9. Floor standing concealed type

Exploded view and parts list for the floor standing concealed type indoor unit.

9-10. Floor standing type

Exploded view and parts list for the floor standing type indoor unit.

WARNINGS ON REFRIGERANT LEAKAGE

Check of Concentration Limit

Information on refrigerant concentration limits and installation requirements.