Toshiba MMY-MAP1204T8-SG User Manual

AIR CONDITIONER (MULTI TYPE)
SERVICE MANUAL
FILE No. A10-005
This service manual provides relevant explanations about new outdoor unit (SMMS-i). Please refer to
the following service manuals for each indoor units.
Outdoor Unit
<SUPER MODULAR MULTI SYSTEM-i>
Model name:
<Heat Pump Model>
<Cooling Only Model>
4-way Air Discharge Cassette Type
(MMU-AP 2H)
A08-004
Compact 4-way Cassette (600 × 600) Type
(MMU-AP 1MH)
A06-002
1-way Air Discharge Cassette Type SH (2 series)
(MMU-AP 2SH)
A05-007
2-way Air Discharge Cassette Type (2 series)
(MMU-AP 2WH)
A10-007
Slim Duct Type
(MMD-AP 1SPH)
A05-007
Fresh Air Intake Indoor Unit Type
(MMD-AP 1HFE)
A06-016
High-wall Type (2 series)
(MMK-AP 2H)
A05-005
High-wall Type (3 series)
(MMK-AP 3H)
SVM-09059
Other indoor units SMMS (1 series) A03-009, A03-010
MMY-MAP0804HT8(Z)(ZG)-E
MMY-MAP1004HT8(Z)(ZG)-E
MMY-MAP1204HT8(Z)(ZG)-E
MMY-MAP1404HT8(Z)(ZG)-E
MMY-MAP1604HT8(Z)(ZG)-E
MMY-MAP0804HT8(Z)(ZG)-TR
MMY-MAP1004HT8(Z)(ZG)-TR
MMY-MAP1204HT8(Z)(ZG)-TR
MMY-MAP1404HT8(Z)(ZG)-TR
MMY-MAP1604HT8(Z)(ZG)-TR
MMY-MAP0804HT8(Z)(ZG)
MMY-MAP1004HT8(Z)(ZG)
MMY-MAP1204HT8(Z)(ZG)
MMY-MAP1404HT8(Z)(ZG)
MMY-MAP1604HT8(Z)(ZG)
MMY-MAP0804HT7(Z)(ZG)
MMY-MAP1004HT7(Z)(ZG)
MMY-MAP1204HT7(Z)(ZG)
MMY-MAP1404HT7(Z)(ZG)
MMY-MAP1604HT7(Z)(ZG)
MMY-MAP0804T8(Z)(ZG)-E
MMY-MAP1004T8(Z)(ZG)-E
MMY-MAP1204T8(Z)(ZG)-E
MMY-MAP1404T8(Z)(ZG)-E
MMY-MAP1604T8(Z)(ZG)-E
MMY-MAP0804T8(Z)(ZG)
MMY-MAP1004T8(Z)(ZG)
MMY-MAP1204T8(Z)(ZG)
MMY-MAP1404T8(Z)(ZG)
MMY-MAP1604T8(Z)(ZG)
MMY-MAP0804T8-SG
MMY-MAP1004T8-SG
MMY-MAP1204T8-SG
MMY-MAP1404T8-SG
MMY-MAP1604T8-SG

Toshiba MMY-MAP1204T8-SG Specifications

General

Brand	Toshiba
Model	MMY-MAP1204T8-SG
Category	Air Conditioner
Language	English

Summary

SERVICE MANUAL

Outdoor Unit

General overview and introduction to the outdoor unit section, covering its role in the SMMS-i system.

1 Wiring Diagrams

Indoor Unit Wiring Diagrams

Detailed electrical schematics for various indoor unit types, crucial for installation and repair.

2 Parts Rating

Outdoor Unit Parts Rating

Lists components and specifications for different outdoor unit models, essential for maintenance and replacement.

Indoor Unit Parts Rating

Lists components and specifications for various indoor unit types, essential for maintenance.

4 Combined Refrigerant Piping System Schematic Diagrams

Normal Operation (COOL Mode / DEFROST Mode) - High Outside Air Temperature

Illustrates refrigerant flow during normal cooling operations under specific high outdoor temperature conditions.

5 Control Outline

6 Applied Control and Functions (including Circuit Configuration)

Explains system logic, control functions, and circuit configurations for both indoor and outdoor units.

7 TEST OPERATION

Procedure and Summary of Test Operation

Outlines the steps for performing a test operation and summarizing the expected results.

Address Setup

Crucial configuration step for system operation and communication between units.

8 TROUBLESHOOTING

Troubleshooting Method

Guides on diagnosing and resolving system faults using various methods and check codes.

9 BACKUP OPERATION (EMERGENCY OPERATION)

Outdoor Unit Backup Operation Setting

Procedure for operating the system in case of outdoor unit failure to maintain basic functionality.

10 OUTDOOR UNIT REFRIGERANT RECOVERY METHOD

Refrigerant Recovery from Failed Outdoor Unit (Pump-Down)

Essential maintenance procedure for safely recovering refrigerant from a faulty outdoor unit.

11 REPLACING COMPRESSORS

Compressor Replacement Procedure (Outline)

Core maintenance task for compressor replacement, including oil adjustment.

12 OUTDOOR UNIT PARTS REPLACEMENT METHODS

Outdoor Unit Parts Replacement

Covers replacement procedures for major external parts of the outdoor unit, including cabinet and fan motor.

13 P.C. BOARD EXCHANGE PROCEDURES

Replacement of Indoor P.C. Boards

Detailed steps for replacing the main control board of indoor units, including EEPROM data handling.

Replacement of Outdoor P.C. Boards

Detailed steps for replacing various P.C. boards within the outdoor unit, such as interface, IPDU, and noise filter.

14 EXPLODED DIAGRAM/PARTS PRICE LIST

SMMS-i OUTDOOR UNIT MMY-MAP0804HT8(Z)(ZG)-E, MMY-MAP1004HT8(Z)(ZG)-E, MMY-MAP1204HT8(Z)(ZG)-E

Visual guide identifying outdoor unit parts for specific models, essential for ordering and replacement.