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Toshiba MMU-AP0182H User Manual

Toshiba MMU-AP0182H
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FILE NO. A08-004
PRINTED IN JAPAN, Oct., 2008 ToMo
SERVICE MANUAL
<4-Way Air Discharge Cassette Type>
MMU-AP0092H, MMU-AP0122H,
MMU-AP0152H, MMU-AP0182H,
MMU-AP0242H, MMU-AP0272H,
MMU-AP0302H, MMU-AP0362H,
MMU-AP0482H, MMU-AP0562H,
This Service Manual describes contents of the 4-Way Air Discharge Cassette indoor unit.
For the outdoor unit, refer to the Manual with FILE No. A03-009, A05-004, A05-015.

Other manuals for Toshiba MMU-AP0182H

Questions and Answers:

Toshiba MMU-AP0182H Specifications

General IconGeneral
BrandToshiba
ModelMMU-AP0182H
CategoryAir Conditioner
LanguageEnglish

Summary

New Refrigerant (R410A) Information

Safety Caution Concerned to New Refrigerant

Details safety precautions for R410A refrigerant, including pressure and oil changes.

Cautions on Installation/Service

Provides specific guidelines for handling R410A during installation and service work.

Pipe Materials for R410A Systems

Specifies recommended copper pipes and flare nuts for R410A refrigerant systems.

Tools for R410A Systems

Required Tools for R410A

Lists tools specifically required for R410A refrigerant systems and their interchangeability.

General Tools for R410A Installation

Lists general tools also necessary for R410A installations, which can be used with R22.

Indoor Unit Specifications

Indoor Unit Technical Details

Details the technical specifications for the indoor unit, including dimensions, capacity, and electrical characteristics.

Wiring Diagram for 4-Way Cassette Type

4-Way Air Discharge Cassette Type Wiring

Provides the specific wiring diagram for the 4-Way Air Discharge Cassette Type models.

Parts Information

Parts Rating and Specifications

Lists the ratings and specifications for various parts used in the air conditioner units.

Identification of Air Conditioner Parts

Identifies and labels the different parts of the air conditioner unit for reference.

Remote Controller Parts Identification

Remote Controller Display Indicators Overview

Explains the meaning of various indicators and symbols on the remote controller display.

Remote Controller Operation Buttons and Functions

Details the purpose and operation of each button on the remote controller for various functions.

Remote Controller Operation Controls

Basic Operation Buttons (ON/OFF, MODE, TEMP)

Controls essential functions like starting/stopping, mode selection, and temperature adjustment.

Airflow and Fan Control Buttons (FAN, SWING/FIX, UNIT LOUVER)

Adjusts air volume, louver direction, and swing settings for optimal comfort.

Timer, Filter, and Test Function Controls

Manages timer settings, filter reset, and test run operations for maintenance.

Wind Direction Control for Specific Cassette Models

Setting Wind Direction and Swing Operation

Explains how to adjust wind direction and initiate/stop louver swing.

Unit Select Button for Individual Control

Explains how to select individual indoor units for setting wind direction.

Louver Control for 4-Way Cassette (2H Series)

Setting Individual Louver Wind Direction

Guides on setting individual louver directions for each discharge port.

Louver Locking and Remote Sensor Settings

Explains how to lock louvers and use the remote controller sensor for temperature adjustment.

Installation Safety Precautions

Installation Place and Environmental Safety

Advises on suitable installation locations and avoiding places with potential hazards.

Electrical Wiring and Grounding Safety

Outlines critical safety precautions for electrical wiring, grounding, and leakage breakers.

Routine Maintenance Procedures

Air Filter and Panel Cleaning Instructions

Step-by-step instructions for cleaning the air filters and the unit panels.

Discharge Louver Cleaning and Periodic Checks

Instructions for cleaning the discharge louver and performing periodic checks.

Air Conditioner Operations and Performance

Pre-Operation Checks and Heating Performance

Essential checks before operation and details on heating capacity and performance.

Operational Safeguards and Conditions

Covers protective devices, power failures, operating conditions, and multi-system controls.

Troubleshooting Symptoms and Causes

Common Operational Symptoms and Causes

Addresses symptoms related to compressor, fan, unit operation, and cooling/warming issues with potential causes.

Troubleshooting Safety and Dealer Contact

Important safety advice and actions to take when specific conditions occur, including when to contact a dealer.

Troubleshooting via Remote Controller Check Display

Remote Controller Error Confirmation and History Check

Explains how to confirm errors and check history using the remote controller's display.

Installation Accessory Parts

Included Installation Accessory Parts

Lists parts included with the unit for installation purposes.

Optional Separate Parts for Installation

Identifies parts that are sold separately and required for installation.

Safety Precautions for Installation

R410A Refrigerant Installation Safety

Specific safety guidelines for installing units using R410A refrigerant.

Power Disconnection and Installation Site Safety

Covers safe procedures for disconnecting power and choosing a safe installation location.

Installation Place Selection and Space Requirements

Installation Space and Ceiling Height Considerations

Details required space, ceiling height considerations, and installation advice.

Discharge Direction and Airflow Management

Explains how to select discharge directions and manage airflow based on room conditions.

General Installation Procedures

Installation Requirements and External Views

Covers general installation requirements, external views, and ceiling preparation.

Hanging Bolt and Ceiling Installation Process

Details the process of installing hanging bolts and securing the ceiling structure.

Detailed Installation Steps

Ceiling Opening and Hanging Bolt Installation

Provides specific steps for creating ceiling openings and installing hanging bolts.

Ceiling Panel and Remote Controller Installation

Instructions for installing the ceiling panel and remote controller, including wireless setup.

Drain Piping Work Procedures

Drain Piping Fundamentals and Requirements

Covers flexible hose usage, connecting drain pipes, and essential requirements for proper drainage.

Drain Up Installation and Draining Verification

Details procedures for drain-up piping and verifying drainage performance.

Refrigerant Piping and Evacuating Procedures

Refrigerant Piping Standards and Evacuation

Outlines standards for refrigerant piping, including pipe size, length, and evacuation steps.

Flaring Techniques and Piping Work Precautions

Details critical steps for flaring pipes and important considerations during piping work.

Refrigerant Piping and Electrical Work

Tightening Connections and Outdoor Unit Piping

Explains proper methods for tightening pipe connections and connecting to the outdoor unit.

Airtight Testing, Purging, and Thermal Insulation

Covers procedures for airtight testing, air purging, and applying thermal insulation to pipes.

Electrical Wiring Specifications and Safety

Details specifications for power supply and control wiring, including safety precautions.

Electrical Wiring and Communication Lines

Communication Line Types and Wiring Connections

Explains communication line types, wire connections, and requirements for secure wiring.

Wiring Port Thermal Insulation and Precautions

Covers thermal insulation for wiring ports and important wiring connection precautions.

Electrical Wiring and Control System Connections

Remote Controller and Inter-Unit Wiring

Details wiring for remote controllers, inter-unit communication, and wiring examples.

Optional Unit Wiring and Address Setup

Covers wiring for flow selector units, address setup, and ceiling panel wiring.

Applicable Controls Setup Procedures

Setting Applicable Controls and Procedures

Explains how to change settings for applicable controls, including filters and high ceiling installation.

Applicable Controls: Remote Controller and Swing Settings

Wireless Remote Control and Filter Sign Settings

Covers settings when using a wireless remote and adjusting filter sign lighting time.

Horizontal Wind Direction and Swing Type Configuration

Details how to select horizontal wind direction and set up swing types for louvers.

Louver Control Modes and Settings

Louver Swing Modes and Locking Functions

Explains dual swing, cycle swing modes, and how to lock louver positions.

Remote Controller Sensor and Group Control Management

Describes using the remote controller sensor and managing group control operations.

Test Run Procedures

Test Run Preparation and Execution Methods

Covers pre-test run checks and the procedure for executing test runs with both wired and wireless remotes.

Maintenance Procedures

Air Filter and Panel Cleaning Instructions

Step-by-step instructions for cleaning the air filters and the unit panels.

Discharge Louver Cleaning and Periodic Checks

Instructions for cleaning the discharge louver and performing periodic checks.

Troubleshooting and Error History

Troubleshooting Overview and Error History Check

Provides an overview of troubleshooting steps and how to check error history via the remote controller.

Indoor Unit Error Code Diagnostics

Indoor Unit Error Code Identification and Analysis

Lists indoor unit error codes, their detected positions, main defective parts, and descriptions for diagnosis.

Central Control Device Error Detection

TCC-LINK Central Control Device Communication Errors

Details error codes detected by the TCC-LINK central control device, including communication and address issues.

Control Specifications Overview

Control Specifications for Operation Modes and Temp. Control

Outlines the control specifications for the air conditioner's operation modes and temperature control.

Advanced Control Logic

Temperature, Capacity, and Cooling/Heating Exchange Control

Explains advanced room temperature control, automatic capacity adjustment, and cooling/heating exchange logic.

Air Speed Selection Logic

Air Speed Selection Based on Temperature Differences

Details how air speed is selected based on room and set temperatures in COOL and HEAT modes.

Air Speed and Cold Air Discharge Control

Air Speed Settings for 4-Way Cassette and Cold Air Prevention

Covers air speed selection for 4-way cassette types and preventing cold air discharge.

Operational Controls: Low Temp Release and Oil Recovery

Low Temperature Release and Cooling Oil Recovery Procedures

Explains freeze prevention control and refrigerant oil recovery procedures.

Various Operational Control Functions

Heating Oil Recovery, Intermittent Operation, and Drain Pump Control

Details heating refrigerant recovery, intermittent operation compensation, drain pump, HA control, and filter sign display.

Unit Status Indicators and Central Control Modes

Unit Status Indicators (READY/HEAT READY) and Central Control Operations

Explains READY/HEAT READY indicators and operational modes for AI-NET and TCC-LINK central control.

Louver Control for 4-Way Cassette Units

Louver Position Setup and Swing Modes

Details how to set louver positions and configure swing operations for 4-way cassette units.

Individual Louver Air Direction Adjustment

Guides on setting air direction for each louver individually.

Louver Swing Modes and Locking

Swing Mode Selection (Standard, Dual, Cycle)

Explains the selection of different swing modes (Standard, Dual, Cycle).

Louver Locking Functionality

Explains how to lock louvers in fixed positions, preventing swing.

DC Motor and Save Operation

DC Motor Operation and Error Detection

Describes the operation of the DC motor and potential error conditions.

Save Operation Function Availability

Notes that the Save Operation function is not provided for this model series.

Control Circuit Configuration - Indoor Unit

Indoor Unit Control Circuit Overview

Details the internal control circuit configuration for the indoor unit.

Indoor Controller Block Diagram

Provides a block diagram of the indoor unit's controller circuit.

Wired Remote Controller Connection Diagram

Explains how to connect a wired remote controller to the indoor unit's control circuit.

Indoor Unit Connections

Wireless Remote Controller Kit Connection

Guides on connecting the wireless remote controller kit to the indoor unit.

Connecting Multiple Remote Controllers

Connecting Both Wired and Wireless Remotes

Instructions for connecting both wired and wireless remote controllers simultaneously.

Indoor Unit P.C. Board Components

Indoor Unit P.C. Board Layout and Labels

Illustrates and labels the components on the indoor unit's P.C. board.

Test Run Procedures for Cooling and Heating

Test Run Steps for Wired and Wireless Remotes

Details the steps for performing cooling and heating test runs using wired and wireless remotes.

Indoor Unit Operation Check Functionality

Checking Indoor Unit Operation via P.C. Board

Explains how to check indoor unit operation directly using the P.C. board, bypassing the remote controller.

Optional Indoor P.C. Board Connectors

Optional Connector Specifications for Indoor P.C. Board

Lists specifications for optional connectors on the indoor unit's P.C. board.

Applied Control Setup in Indoor Unit

Manual Setup of Indoor Unit Functions via Remote Controller

Guides on setting various functions for the indoor unit using a wired remote controller.

Applied Control: Function Selection Codes

Function Selection Item Codes (DN) for Applied Controls

Provides a list of function codes (DN) and their corresponding settings for applied controls.

Applied Controls: High Ceiling, Filter, and Timer Settings

High Ceiling Selection and Built-in Filter Configuration

Explains settings for high ceiling installations and built-in filters.

Timer Setup and Indoor Unit Capacity Configuration

Covers timer setup using a wired remote and configuring indoor unit capacity.

Applied Control: Remote ON/OFF Function

Remote Location ON/OFF Control Box Operation and Wiring

Details the function and wiring of the remote ON/OFF control box.

Ventilating Fan Control via Remote Controller

Ventilating Fan Control Functions and Wiring

Explains how to control the ventilating fan using a wired remote controller and its wiring.

Leaving-ON Prevention Control and Power Peak-Cut

Leaving-ON Prevention Control System Operation and Wiring

Describes the function, control items, operation, and wiring for leaving-ON prevention.

Power Peak-Cut Function from Indoor Unit

Details the power peak-cut function that forces thermostat-OFF operation.

Manual Address Setup via Remote Controller

Setting Indoor Unit Addresses Manually

Step-by-step guide for manually setting indoor unit addresses using the remote controller.

Confirming Indoor Unit Address and Position

Identifying Indoor Unit Addresses via Remote Controller

Procedures to check the recognized indoor unit addresses and their positions in group control.

Function Selection Setup Procedure

Setting Indoor Unit Functions via Remote Controller

Step-by-step guide for setting various functions for the indoor unit using the remote controller.

Checking All Unit Numbers from Wired Remote Controller

Procedure to Check All Unit Numbers and Piping

Describes how to check all unit numbers and their piping positions using a wired remote controller.

Changing Indoor Unit Addresses via Remote Controller

Manual Address Change Procedure for All Units

Explains how to change indoor unit addresses from an arbitrary wired remote controller.

Error Clearing Procedures from Remote Controller

Clearing Outdoor and Indoor Unit Errors

Instructions on how to clear errors for both outdoor and indoor units using the remote controller.

Remote Controller Monitoring Functionality

Using Remote Controller for Monitoring Operations and Sensors

Explains how to use the remote controller's monitoring function to check sensor temperatures and operating status.

Troubleshooting Summary and Procedures

Common Troubles and Troubleshooting Steps

Provides a summary of common troubles, applicable models, required tools, and troubleshooting steps.

Indoor Unit Error Code Diagnostics

Indoor Unit Error Code Identification and Analysis

Lists indoor unit error codes, their detected positions, main defective parts, and descriptions for diagnosis.

Remote and Central Controller Error Detection

Remote Controller and Central Control Error Codes

Details error codes detected by remote and central controllers, including their causes.

Outdoor Unit Error Code Diagnostics

Outdoor Unit Error Code Identification and Analysis

Lists outdoor unit error codes, detected positions, main defective parts, and descriptions for troubleshooting.

IPDU and Compressor Error Codes

IPDU and Compressor Error Codes for S-MMS Outdoor Units

Lists IPDU errors, their causes, and check items for S-MMS standard outdoor units.

Troubleshooting via Remote Controller Check Display

Remote Controller Error Confirmation and History Check

Explains how to confirm errors and check history using the remote controller's display.

Central Remote Controller Error Diagnosis

Central Remote Controller Error Confirmation and History

Details error confirmation and history check procedures using a central remote controller.

Wireless Indoor Unit Display Error Codes

Indoor Unit Display (Wireless Type) Error Code Analysis

Lists error codes displayed on the wireless receiver unit and their corresponding causes.

Other Troubleshooting Indicators

Interpretation of Other Lamp Indications

Describes lamp indications for test run and COOL/HEAT disagreement scenarios.

Super Modular Multi System Check Codes

Super Modular Multi System Error Code Diagnostics

Lists check codes for Super Modular Multi systems, including detected positions and error details.

IPDU and Sensor Error Code Diagnostics

IPDU Communication and Sensor Error Code Analysis

Details error codes related to IPDU communication, sensors (TCJ, TC2, TC1, TD1, TD2, TE1, TL, TO, TA, TS1, TH), and their causes.

Compressor and Motor Protection Error Codes

Compressor Breakdown, Lock, and Motor Protection Errors

Lists error codes for compressor breakdown, lock, MG-SW, OCR, and current detection circuits.

Compressor Thermo and Oil Level Error Codes

Compressor Case Thermo and Oil Level Detection Errors

Details error codes for compressor case thermostat operation and oil level detection issues.

Compressor Thermo, Address, and Capacity Error Codes

Compressor Thermo, Address, and Capacity Related Errors

Covers errors related to compressor thermo, address, and capacity settings.

Unit Address, Capacity, and IPDU Error Codes

Unit Address, Capacity, FS Unit, and IPDU Errors

Details errors related to unit addresses, capacity, FS unit system, IPDU, and interlock conditions.

Fan Motor and Discharge Temperature Error Codes

Fan Motor and Discharge Temperature (TD1) Errors

Lists error codes for indoor fan motor, discharge temperature (TD1), high-pressure SW, and heat sink overheat.

Liquid Back, Gas Leak, and Valve Error Codes

Liquid Back, Gas Leak, and Valve Operation Errors

Covers errors related to outdoor liquid back detection, gas leak, discharge temperature (TD2), 4-way valve, and high-pressure operation.

Outdoor Fan and Compressor Protection Error Codes

Outdoor Fan and Compressor Protection Error Codes

Details errors related to outdoor fan IPDU, G-Tr short-circuit, compressor position detection, and other indoor unit errors.

TCC-LINK Central Control Device Errors

TCC-LINK Central Control Device Communication Errors

Lists errors detected by the TCC-LINK central control device, including communication and address issues.

Indoor Unit Sensor Characteristics

Indoor Unit Temperature Sensor Resistance Curves

Displays resistance-temperature curves for indoor TA, TC1, TC2, and TCJ sensors.

Detachments: Grille and Parts Cover

Suction Grille Removal and Installation

Step-by-step instructions for removing and installing the suction grille.

Electric Parts Cover Removal and Installation

Procedures for removing and installing the electric parts cover.

Detachments: Parts Cover and Corner Cap

Electric Parts Cover Attachment Details

Further steps for attaching the electric parts cover.

Adjust Corner Cap Removal and Attachment

Instructions for detaching and attaching the adjust corner cap.

Detachments: Ceiling Panel Installation

Ceiling Panel Removal and Installation Procedure

Step-by-step guide for removing and installing the ceiling panel.

Detachments: Control P.C. Board Replacement

Control P.C. Board Removal and Installation

Procedures for removing and installing the main control P.C. board.

Detachments: Drain Cap Procedure

Drain Cap Removal and Installation Steps

Instructions for removing and installing the drain cap, including proper orientation.

Detachments: Fan Motor Replacement

Fan Motor Removal and Installation Process

Step-by-step guide for removing and installing the fan motor, including torque specifications.

Fan Motor Attachment Details

Further steps for attaching the fan motor and its components, including wiring.

Detachments: Drain Pump Replacement

Drain Pump Removal and Installation Procedure

Procedures for removing and installing the drain pump and its associated parts.

Detachments: Float Switch and Drain Pan

Float Switch Assembly Removal and Installation

Instructions for removing and installing the float switch assembly.

Drain Pan Removal and Installation Steps

Procedures for removing and installing the drain pan and its related components.

Detachments: PMV Motor Replacement

PMV Motor Removal and Installation Procedure

Steps for removing and installing the PMV motor, including torque control.

Detachments: Heat Exchanger Replacement

Heat Exchanger Removal and Installation Process

Detailed instructions for removing and installing the heat exchanger, including refrigerant recovery.

P.C. Board Exchange Procedures

Indoor Unit P.C. Board Replacement Steps

Explains the procedure for replacing the indoor unit's P.C. board.

P.C. Board Replacement: EEPROM Data and System Configuration

Reading EEPROM Data Before P.C. Board Swap

Guides on how to read and record setting data from the EEPROM before replacing the P.C. board.

P.C. Board Replacement and System Configuration

Details the process of replacing the P.C. board and configuring system settings.

P.C. Board Replacement: Writing Setting Data

Writing Setting Data to EEPROM After P.C. Board Swap

Instructions for writing setting data to the EEPROM after the P.C. board has been replaced.

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