Toshiba MMY-MAP1204FT7(Z) Manuals

Manuals and User Guides for Toshiba MMY-MAP1204FT7(Z). We have 1 Toshiba MMY-MAP1204FT7(Z) manual available for free PDF download: Service Manual

Toshiba MMY-MAP1204FT7(Z) Service Manual (333 pages)

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Brand: Toshiba | Category: Air Conditioner | Size: 27.54 MB

Service Manual
1
Table of Contents
2
Original Instruction

5
New Refrigerant (R410A)

21
1 Wiring Diagrams

23
- Outdoor Unit
  
  23
- Indoor Unit
  
  25
  - 4-Way Cassette Type
    25
  - Compact 4-Way Cassette Type
    26
  - 1-Way Cassette Type (Compact Type)
    27
  - 1-Way Cassette Type SH Series
    28
  - 2-Way Air Discharge Cassette Type
    29
  - Concealed Duct Standard Type
    30
  - Concealed Duct Standard Type 6 Series
    31
  - Concealed Duct High Static Pressure Type
    32
  - Slim Duct Type
    34
  - Slim Duct Type
    35
  - Ceiling Type
    36
  - High Wall Type 4MH Series
    37
  - High Wall Type 3 Series
    38
  - Floor Standing Cabinet Type
    39
  - Floor Standing Concealed Type
    40
  - Floor Standing Type
    41
  - Air to Air Heat Exchanger with DX Coil Unit
    42
- Flow Selector Unit
  
  46
2 Parts Rating

48
3 Refrigerant Piping Systematic Drawing

59
- Operation Mode
  63
4 System Refrigeerant Piping Schematic Diagrams

64
5 Control Outline

73
- Indoor Unit
  
  73
- Outdoor Unit
  
  79
6 Applied Control and Functions (Including Circuit Configuration)

87
7 Test Operation

119
8 Troubleshooting

169
9 Backup Operation (Emergency Operation)

248
- Note for Backup Operation
  
  248
- Compressor Backup Operation Setting
  
  249
- Outdoor Unit Backup Operation Setting
  
  250
10 Outdoor Unit Refrigerant Recovery Method

251
11 Replacing Compressors

257
12 Outdoor Unit Parts Replacement Methods

264
13 Board Exchange Procedures

277
- Replacement of Indoor P.C. Boards
  
  277
- Replacement of Outdoor P.C. Boards
  
  285
14 Exploded Diagram/Parts List

293

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Toshiba MMY-MAP1204FT7(Z) Service Manual (333 pages)

Table of Contents

Original Instruction

New Refrigerant (R410A)

1 Wiring Diagrams

Outdoor Unit

Indoor Unit

Flow Selector Unit

2 Parts Rating

Outdoor Unit (50Hz Model: MMY-MAP ∗∗∗ 4FT8-E, MAP ∗∗∗ 4FT8-TR, MAP ∗∗∗ 4FT8)

Outdoor Unit (60Hz Model: MMY-MAP ∗∗∗ 4FT7)

Outdoor Inverter (50Hz Model: MMY-MAP MAP ∗∗∗ 4FT8)

Outdoor Inverter (60Hz Model: MMY-MAP ∗∗∗ 4FT7)

Parts Layout in Outdoor Unit

Parts Layout in Inverter Assembly

Outdoor (Inverter) Print Circuit Board

3 Refrigerant Piping Systematic Drawing

4 System Refrigeerant Piping Schematic Diagrams

Single Cooling Mode (Operation of Cooling Only) When Outside Temperature Is High

Single Cooling Mode (Operation of Cooling Only) When Outside Temperature Is Low

Single Heating Mode (Operation of Heating Only)

Collective Cooling Mode (Operating Cooling Function Mainly, Collective Operation of Cooling and Heating Operation)

Collective Heating Mode (Operating Heating Function Mainly, Collective Operation of Cooling and Heating Operation)

Emergency Operation (Single Cooling Operation at Backup of the Center Unit)

Emergency Operation (Single Heating Operation at Backup of the Center Unit)

Refrigerant Recovery (During Pump-Down Operation) of the Troubled Outdoor Unit)

5 Control Outline

Indoor Unit

Outdoor Unit

6 Applied Control and Functions (Including Circuit Configuration)

Indoor Controller Block Diagram

Indoor Printed Circuit Board

Optional Connector Specifications of Indoor P.C. Board

Test Operation of Indoor Unit

Method to Set Indoor Unit Function DN Code

Applied Control of Indoor Unit

Applied Control for Outdoor Unit

Applied Control of Outdoor Unit

7 Test Operation

Procedure and Summary of Test Operation

Check Items before Test Operation (before Poweringon)

Check at Main Power-On

Address Setup

Troubleshooting in Test Operation

Test Operation Check

Service Support Function

8 Troubleshooting

Overview

Troubleshooting Method

Troubleshooting Based on Information Displayed on Remote Controller

Check Codes Displayed on Remote Controller and SMMS-I Outdoor Unit (7-Segment Display on I/F Board) and Locations to be Checked

Diagnosis Procedure for each Check Code

7-Segment Display Function

Oil Level Judgment Display

Leakage/Clogging of Refrigerating Cycle Circuit

Sensor Characteristics

Pressure Sensor Output Check

9 Backup Operation (Emergency Operation)

Note for Backup Operation

Compressor Backup Operation Setting

Outdoor Unit Backup Operation Setting

10 Outdoor Unit Refrigerant Recovery Method

Refrigerant Recovery from Failed Outdoor Unit (Pump-Down)

How to Operate System While Failed Outdoor Unit Being Repaired

Work Procedure after Repair

11 Replacing Compressors

Compressor Replacement Procedure (Outline)

Replacement of Compressors

Check Procedure to Search Cause of Compressor Oil Shortage

12 Outdoor Unit Parts Replacement Methods

13 Board Exchange Procedures

Replacement of Indoor P.C. Boards

Replacement of Outdoor P.C. Boards

14 Exploded Diagram/Parts List

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