Toshiba MMD-AP0244BH-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.

Summary

Indoor Unit Types

1-way Cassette Type (YH, SH)

Indoor units of 1-way cassette type (YH, SH).

Concealed Duct High Static Pressure Type

Indoor units of concealed duct high static pressure type.

Floor Standing Concealed Type

Indoor units of floor standing concealed type.

Compact 4-way Cassette Type

Indoor units of compact 4-way cassette type.

Ceiling Type

Indoor units of ceiling type.

Floor Standing Cabinet Type

Indoor units of floor standing cabinet type.

Slim Duct Type

Indoor units of slim duct type.

Floor Standing Type

Indoor units of floor standing type.

Concealed Duct Standard Type

Indoor units of concealed duct standard type.

1 Wiring Diagrams

1-1. Compact 4-way cassette type

Wiring diagram for compact 4-way cassette indoor units.

1-2. 1-way cassette type (compact type YH)

Wiring diagram for 1-way cassette (YH) indoor units.

1-3. 1-way cassette type (SH)

Wiring diagram for 1-way cassette (SH) indoor units.

1-4. Concealed duct standard type

Wiring diagram for concealed duct standard type indoor units.

1-5. Concealed duct high static pressure type

Wiring diagram for concealed duct high static pressure type indoor units.

1-6. Slim duct type

Wiring diagram for slim duct type indoor units.

1-7. Ceiling type

Wiring diagram for ceiling type indoor units.

1-8. Floor standing cabinet type

Wiring diagram for floor standing cabinet type indoor units.

1-9. Floor standing concealed type

Wiring diagram for floor standing concealed type indoor units.

1-10. Floor standing type

Wiring diagram for floor standing type indoor units.

2 Parts Rating

2-1. Indoor unit

Lists parts ratings for various indoor unit types.

3 Refrigerant Cycle Diagram

Indoor unit

Illustrates the refrigerant cycle within the indoor unit.

4 Control Outline

Indoor unit

Details the control specifications for indoor units.

Control specifications

Outlines operational and functional control specifications.

5 Fan speed control

Explains fan speed control logic in cooling and heating modes.

15 Operation standby

Details operation standby and heating standby states.

16 Selection of central control mode

Explains how to select central control modes.

5 Applied Control and Functions (Including Circuit Configuration)

5-1. Indoor controller block diagram

Block diagram of the indoor unit controller.

5-2. Indoor printed circuit board

Diagram illustrating components on the indoor P.C. board.

5-3. Optional connector specifications of indoor P.C. board

Details specifications for optional P.C. board connectors.

5-4. Test operation of indoor unit

Procedure for checking indoor unit operation independently.

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

Steps to set indoor unit functions using DN codes.

Manual address setting using the remote controller

Procedure for manually setting indoor unit addresses.

Error clearing function

Procedure for clearing indoor and outdoor unit errors.

Monitoring function of wired remote controller

How to use the remote controller for monitoring functions.

6 Troubleshooting

6-1. Overview

Provides an overview of troubleshooting procedures and required tools.

6-2. Troubleshooting method

Lists check codes for indoor and outdoor units and their typical faults.

6-3. Troubleshooting based on information displayed on remote controller

How to troubleshoot using remote controller display and error history.

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, system status, and items to check for outdoor units.

6-5. Sensor characteristics

Provides resistance characteristics for indoor unit sensors (TA, TC1, TC2, TCJ).

7 P.C. Board Exchange Procedures

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

Details procedures for replacing indoor P.C. boards.

8 Detachments

8-1. 1-way cassette (SH)

Step-by-step instructions for detaching parts of the 1-way cassette (SH) indoor unit.

8-2. Compact 4-way cassette

Instructions for detaching parts of the compact 4-way cassette indoor unit.

8-3. Slim duct

Instructions for detaching parts of the slim duct indoor unit.

8-4. Concealed duct standard

Instructions for detaching parts of the concealed duct standard indoor unit.

8-5. Concealed duct high static pressure

Instructions for detaching the fan motor of high static pressure concealed duct units.

8-6. Ceiling

Instructions for detaching parts of the ceiling type indoor unit.

8-7. Floor standing

Instructions for detaching electrical components of floor standing units.

8-8. Floor standing cabinet

Instructions for removing electrical control assembly of floor standing cabinet units.

9 Exploded Diagram; Service Parts List

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

Exploded view and parts list for 1-way cassette (YH) indoor units.

9-2. 1-Way cassette type (SH)

Exploded view and parts list for 1-way cassette (SH) indoor units.

9-3. Compact 4-way cassette type

Exploded view and parts list for compact 4-way cassette indoor units.

9-4. Slim duct type

Exploded view and parts list for slim duct indoor units.

9-5. Concealed duct standard type

Exploded view and parts list for concealed duct standard indoor units.

9-6. Concealed duct high static pressure type

Exploded view and parts list for concealed duct high static pressure indoor units.

9-7. Ceiling type

Exploded view and parts list for ceiling type indoor units.

9-8. Floor standing type

Exploded view and parts list for floor standing type indoor units.

9-9. Floor standing concealed type

Exploded view and parts list for floor standing concealed indoor units.

9-10. Floor standing cabinet type

Exploded view and parts list for floor standing cabinet indoor units.

Toshiba MMD-AP0244BH-E Specifications