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Toshiba MMY-MAP1404T8P-SG User Manual

Toshiba MMY-MAP1404T8P-SG
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SERVICE MANUAL
AIR-CONDITIONER (MULTI TYPE)
<SUPER MODULAR MULTI SYSTEM - i>
Outdoor Unit
Model name:
FILE NO. SVM-13024-8
MMY-MAP0804HT8(J)P
MMY-MAP1004HT8(J)P
MMY-MAP1204HT8(J)P
MMY-MAP1404HT8(J)P
MMY-MAP1604HT8(J)P
MMY-MAP0804HT8(J)P-E
MMY-MAP1004HT8(J)P-E
MMY-MAP1204HT8(J)P-E
MMY-MAP1404HT8(J)P-E
MMY-MAP1604HT8(J)P-E
MMY-MAP0804HT8(J)P-TR
MMY-MAP1004HT8(J)P-TR
MMY-MAP1204HT8(J)P-TR
MMY-MAP1404HT8(J)P-TR
MMY-MAP1604HT8(J)P-TR
<Heat Pump Model>
<4-way Cassette Type>
(MMU-AP***4HP-E) (Made in Thailand model) SVM-13-011
<2-way Cassette Type>
(MMU-AP
***
2WH) A10-007
<Concealed Duct Standard Type>
(MMD-AP
***
6BH-E) A12-005
<Slim Duct Type>
(MMD-AP0244SPH-E, AP0274SPH-E) A12-005
Fresh Air Intake Indoor Unit Type
(MMD-AP
****
HFE) A06-016
<Air to Air Heat Exchanger with DX Coil Unit Type>
(MMD-VN
*****
HEXE
*
) A10-022-2
High-wall Type
(MMK-AP
***
3H) (Made in Thailand model) SVM-09-059
Console Type
(MML-AP
****
NH-E) (Made in Thailand model) SVM-11-036
Other indoor units
(MM
*
-AP
*****
H
*
) A10-033
MMY-MAP0804HT7(J)P
MMY-MAP1004HT7(J)P
MMY-MAP1204HT7(J)P
MMY-MAP1404HT7(J)P
MMY-MAP1604HT7(J)P
This service manual provides relevant explanations about new outdoor unit (SMMS-i).
Please refer to the following service manuals for each indoor units.
MMY-MAP0804HT7P-K
MMY-MAP1004HT7P-K
MMY-MAP1004HT7P-K1
MMY-MAP1204HT7P-K
MMY-MAP1404HT7P-K
MMY-MAP1604HT7P-K
MMY-MAP0804T8(J)P
MMY-MAP1004T8(J)P
MMY-MAP1204T8(J)P
MMY-MAP1404T8(J)P
MMY-MAP1604T8(J)P
MMY-MAP0804T8(J)P-T
MMY-MAP1004T8(J)P-T
MMY-MAP1204T8(J)P-T
MMY-MAP1404T8(J)P-T
MMY-MAP1604T8(J)P-T
MMY-MAP0804T8P-SG
MMY-MAP1004T8P-SG
MMY-MAP1204T8P-SG
MMY-MAP1404T8P-SG
MMY-MAP1604T8P-SG
<Cooling Only Model>
MMY-MAP0804T8(J)P-ID
MMY-MAP1004T8(J)P-ID
MMY-MAP1204T8(J)P-ID
MMY-MAP1404T8(J)P-ID
MMY-MAP1604T8(J)P-ID
MMY-MAP0804T8(J)P-E
MMY-MAP1004T8(J)P-E
MMY-MAP1204T8(J)P-E
MMY-MAP1404T8(J)P-E
MMY-MAP1604T8(J)P-E

Table of Contents

Questions and Answers:

Toshiba MMY-MAP1404T8P-SG Specifications

General IconGeneral
BrandToshiba
ModelMMY-MAP1404T8P-SG
CategoryAir Conditioner
LanguageEnglish

Summary

Outdoor Unit

Wiring Diagrams

Outdoor Unit Wiring Diagrams

Wiring diagrams for the outdoor units.

Indoor Unit Wiring Diagrams

Wiring diagrams for various indoor unit types.

Parts Rating

Outdoor Unit Parts Rating (50Hz)

Electrical and mechanical specifications for 50Hz outdoor units.

Outdoor Unit Parts Rating (60Hz)

Electrical and mechanical specifications for 60Hz outdoor units.

Outdoor Inverter Parts Rating (50Hz)

Specifications for inverter outdoor units (50Hz).

Outdoor Inverter Parts Rating (60Hz)

Specifications for inverter outdoor units (60Hz).

Indoor Unit Parts Rating

Specifications for various indoor unit types.

Refrigerant Piping Systematic Drawing

Combined Refrigerant Piping System Schematic Diagrams

Normal Operation (COOL/DEFROST) - High Outside Air Temp

Explains normal operation in COOL/DEFROST modes at high outside temperatures.

Normal Operation (COOL) - Low Outside Air Temp

Explains normal operation in COOL mode at low outside temperatures.

Normal Operation (HEAT Mode)

Details normal operation in HEAT mode.

Emergency Operation (Cooling) - Header Unit Backup

Describes emergency cooling operation with header unit backup.

Emergency Operation (Heating) - Header Unit Backup

Describes emergency heating operation with header unit backup.

Refrigerant Recovery from Failed Outdoor Unit (Pump-Down)

Procedure for refrigerant recovery from a failed outdoor unit during backup operation.

Control Outline

Applied Control and Functions

Indoor Controller Block Diagram

Block diagram of the indoor controller and its components.

Indoor Printed Circuit Board

Detailed layout and identification of components on the indoor PC board.

Optional Connector Specifications (Indoor PC Board)

Details on optional connectors and their specifications for indoor PC boards.

Test Operation of Indoor Unit

Procedure for testing the functionality of the indoor unit.

Method to Set Indoor Unit Function DN Code

Step-by-step guide to setting indoor unit function DN codes.

Applied Control of Indoor Unit

Explains various control functions applied to the indoor unit.

Applied Control for Outdoor Unit

Details applied control functions for outdoor units.

Outdoor Fan High Static Pressure Shift

Adjusts outdoor fan speed for high static pressure duct applications.

Priority Operation Mode Setting

Allows switching between priority cooling and heating modes.

Power Peak-Cut Control (Standard)

Limits the peak capacity of the outdoor unit using an external signal.

Power Peak-Cut Control (Extended)

Extended power peak-cut control using SW07 Bit 2.

Snowfall Fan Control

Controls outdoor unit fan operation based on snowfall conditions.

External Master ON/OFF Control

Allows system start/stop control via the outdoor unit.

Night Operation (Sound Reduction) Control

Decreases noise at night or other times as necessary.

Operation Mode Selection Control

Allows changing the operation mode of indoor units via jumper wire.

Error/Operation Output

Provides output signals for in-operation status and errors.

Compressor Operation Output

Outputs signals indicating compressor operation status.

Operating Rate Output

Outputs signals related to the system's operation rate.

Test Operation

Procedure and Summary of Test Operation

Outlines the steps for executing a test operation.

Pre-Test Operation Checks (Electrical Wiring)

Essential checks for electric wiring before performing a test operation.

Check at Main Power-on

Checks to be performed after applying main power.

Address Setup

Procedures and considerations for setting system addresses.

Address Setup Precautions

Important precautions to follow before performing address setup.

Address Setup and Check Procedure

Step-by-step guide for setting up and verifying addresses.

Address Setup Procedure

Detailed procedure for setting up addresses for the system.

Check After Address Setup (with Central Control)

Verification steps after address setup when a central control system is connected.

Troubleshooting in Test Operation

Troubleshooting: Check Code Displayed on Remote Controller

Guide to interpreting and resolving check codes displayed on the remote controller.

Troubleshooting: Operation Not Accepted / Check Code on Header Unit

Diagnosing issues when remote controller operation is not accepted and a check code is shown.

Troubleshooting: No Check Code on Header Unit / Indoor Unit Unresponsive

Troubleshooting when no check code appears but the indoor unit is unresponsive.

Troubleshooting: Incorrect Number of Connected Units After Address Setup

Diagnosing issues with incorrect connected unit counts after address setup.

Test Operation Check

Fan Check

Procedure to check the fan operation of the indoor unit.

Cooling/Heating Test Operation Check

Performing test operations for cooling and heating modes.

Troubleshooting

Troubleshooting Overview

Introduction to troubleshooting procedures and required tools.

Troubleshooting Method

General methods and analysis of check codes for troubleshooting.

Troubleshooting Based on Remote Controller Display

How to use remote controller displays for troubleshooting.

Check Codes Displayed on Remote Controller and Outdoor Unit

Lists check codes and locations for troubleshooting on remote controller and outdoor unit.

Diagnosis Procedure for Each Check Code

Detailed diagnostic flowcharts for troubleshooting various check codes.

7-Segment Display Function

Explains the use of the 7-segment display for checking operational status.

Oil Level Judgment Display

How to check the oil level judgment results for compressors.

Refrigerating Cycle Leakage/Clogging

Identifies check codes for refrigerant leakage or clogging issues.

Sensor Characteristics

Provides resistance characteristics for various sensors.

Pressure Sensor Output Check

Procedure for checking the output of pressure sensors.

Backup Operation (Emergency Operation)

Notes for Backup Operation

Important notes and conditions for performing backup operation.

Compressor Backup Operation Setting

Procedure for setting up compressor backup operation.

Outdoor Unit Backup Operation Setting

Procedures for setting up outdoor unit backup operation.

Follower Outdoor Unit Backup Operation Setting (Failure)

Setting up backup operation for a failed follower outdoor unit.

Header Outdoor Unit Backup Operation Setting (Failure)

Setting up backup operation for a failed header outdoor unit.

Cooling-Season Outdoor Unit Backup Operation Setting

Procedure for backup operation during the cooling season only.

Outdoor Unit Refrigerant Recovery Method

Refrigerant Recovery from Failed Outdoor Unit (Pump-Down)

Method for recovering refrigerant from a failed outdoor unit using pump-down.

Operating System While Failed Outdoor Unit is Repaired

Procedure for operating the system while a failed outdoor unit is under repair.

Work Procedure After Repair

Steps to follow after completing repairs, including vacuuming.

Replacing Compressors

Compressor Replacement Procedure (Outline)

General outline for replacing a compressor.

Compressor Replacement

Detailed procedure for replacing compressors, including oil adjustment.

Procedure to Search for Compressor Oil Shortage Cause

Steps to diagnose the cause of compressor oil shortage.

Outdoor Unit Parts Replacement Methods

P.C. Board Exchange Procedures

Procedures for exchanging P.C. boards.

Indoor P.C. Board Replacement

Procedure for replacing the indoor P.C. board.

Outdoor P.C. Board Replacement

Procedures for replacing various outdoor P.C. boards.

List of Service P.C. Boards

Lists available service P.C. boards for outdoor units.

Inverter Assembly Configuration

Diagram showing the layout of components in the inverter assembly.

Interface Board (MCC-1606) Replacement Method

Detailed steps for replacing the interface board.

Comp-IPDU P.C. Board (MCC-1596) Replacement Procedure

Procedure for replacing the compressor IPDU P.C. board.

Fan IPDU P.C. Board (MCC-1610) Replacement Procedure

Procedure for replacing the fan IPDU P.C. board.

Noise Filter P.C. Board (MCC-1608 A, B) Replacement Procedure

Procedure for replacing the noise filter P.C. board.

P.C. Board Exchange Procedures

Indoor P.C. Board Replacement

Procedure for replacing the indoor P.C. board.

Outdoor P.C. Board Replacement

Procedures for replacing various outdoor P.C. boards.

List of Service P.C. Boards

Lists available service P.C. boards for outdoor units.

Inverter Assembly Configuration

Diagram showing the layout of components in the inverter assembly.

Interface Board (MCC-1606) Replacement Method

Detailed steps for replacing the interface board.

Comp-IPDU P.C. Board (MCC-1596) Replacement Procedure

Procedure for replacing the compressor IPDU P.C. board.

Fan IPDU P.C. Board (MCC-1610) Replacement Procedure

Procedure for replacing the fan IPDU P.C. board.

Noise Filter P.C. Board (MCC-1608 A, B) Replacement Procedure

Procedure for replacing the noise filter P.C. board.

Exploded Diagram and Parts Price List

SMMS-i Outdoor Unit Exploded Diagram (MMY-MAP0804/1004/1204)

Exploded view of SMMS-i outdoor units with part identification.

Troubleshooting

Troubleshooting Overview

Introduction to troubleshooting procedures and required tools.

Troubleshooting Method

General methods and analysis of check codes for troubleshooting.

Troubleshooting Based on Remote Controller Display

How to use remote controller displays for troubleshooting.

Check Codes Displayed on Remote Controller and Outdoor Unit

Lists check codes and locations for troubleshooting on remote controller and outdoor unit.

Diagnosis Procedure for Each Check Code

Detailed diagnostic flowcharts for troubleshooting various check codes.

7-Segment Display Function

Explains the use of the 7-segment display for checking operational status.

Oil Level Judgment Display

How to check the oil level judgment results for compressors.

Refrigerating Cycle Leakage/Clogging

Identifies check codes for refrigerant leakage or clogging issues.

Sensor Characteristics

Provides resistance characteristics for various sensors.

Pressure Sensor Output Check

Procedure for checking the output of pressure sensors.

Backup Operation (Emergency Operation)

Notes for Backup Operation

Important notes and conditions for performing backup operation.

Compressor Backup Operation Setting

Procedure for setting up compressor backup operation.

Outdoor Unit Backup Operation Setting

Procedures for setting up outdoor unit backup operation.

Follower Outdoor Unit Backup Operation Setting (Failure)

Setting up backup operation for a failed follower outdoor unit.

Header Outdoor Unit Backup Operation Setting (Failure)

Setting up backup operation for a failed header outdoor unit.

Cooling-Season Outdoor Unit Backup Operation Setting

Procedure for backup operation during the cooling season only.

Outdoor Unit Refrigerant Recovery Method

Refrigerant Recovery from Failed Outdoor Unit (Pump-Down)

Method for recovering refrigerant from a failed outdoor unit using pump-down.

Operating System While Failed Outdoor Unit is Repaired

Procedure for operating the system while a failed outdoor unit is under repair.

Work Procedure After Repair

Steps to follow after completing repairs, including vacuuming.

Replacing Compressors

Compressor Replacement Procedure (Outline)

General outline for replacing a compressor.

Compressor Replacement

Detailed procedure for replacing compressors, including oil adjustment.

Procedure to Search for Compressor Oil Shortage Cause

Steps to diagnose the cause of compressor oil shortage.

Outdoor Unit Parts Replacement Methods

P.C. Board Exchange Procedures

Procedures for exchanging P.C. boards.

Indoor P.C. Board Replacement

Procedure for replacing the indoor P.C. board.

Outdoor P.C. Board Replacement

Procedures for replacing various outdoor P.C. boards.

List of Service P.C. Boards

Lists available service P.C. boards for outdoor units.

Inverter Assembly Configuration

Diagram showing the layout of components in the inverter assembly.

Interface Board (MCC-1606) Replacement Method

Detailed steps for replacing the interface board.

Comp-IPDU P.C. Board (MCC-1596) Replacement Procedure

Procedure for replacing the compressor IPDU P.C. board.

Fan IPDU P.C. Board (MCC-1610) Replacement Procedure

Procedure for replacing the fan IPDU P.C. board.

Noise Filter P.C. Board (MCC-1608 A, B) Replacement Procedure

Procedure for replacing the noise filter P.C. board.

P.C. Board Exchange Procedures

Indoor P.C. Board Replacement

Procedure for replacing the indoor P.C. board.

Outdoor P.C. Board Replacement

Procedures for replacing various outdoor P.C. boards.

List of Service P.C. Boards

Lists available service P.C. boards for outdoor units.

Inverter Assembly Configuration

Diagram showing the layout of components in the inverter assembly.

Interface Board (MCC-1606) Replacement Method

Detailed steps for replacing the interface board.

Comp-IPDU P.C. Board (MCC-1596) Replacement Procedure

Procedure for replacing the compressor IPDU P.C. board.

Fan IPDU P.C. Board (MCC-1610) Replacement Procedure

Procedure for replacing the fan IPDU P.C. board.

Noise Filter P.C. Board (MCC-1608 A, B) Replacement Procedure

Procedure for replacing the noise filter P.C. board.

Exploded Diagram and Parts Price List

SMMS-i Outdoor Unit Exploded Diagram (MMY-MAP0804/1004/1204)

Exploded view of SMMS-i outdoor units with part identification.

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