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Toshiba MMU-AP0121YH User Manual

Toshiba MMU-AP0121YH
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R410A
FILE NO. A05-012
OWNER’S MANUAL
/
INSTALLATION MANUAL
Indoor Unit
<4-way Air Discharge Cassette Type>
MMU-AP0091H, AP0121H, AP0151H,
MMU-AP0181H, AP0241H, AP0271H,
MMU-AP0301H, AP0361H, AP0481H
MMU-AP0561H
<2-way Air Discharge Cassette Type>
MMU-AP0071WH, AP0091WH, AP0121WH,
MMU-AP0151WH, AP0181WH, AP0241WH,
MMU-AP0271WH, AP0301WH, AP0481WH*
* CHINA market only
<1-way Air Discharge Cassette Type>
MMU-AP0071YH, AP0091YH, AP0121YH,
MMU-AP0151SH, AP0181SH, AP0241SH,
MMU-AP0152SH, AP0182SH, AP0242SH
<Concealed Duct Standard Type>
MMD-AP0071BH, AP0091BH, AP0121BH, AP0151BH,
MMD-AP0181BH, AP0241BH, AP0271BH, AP0301BH,
MMD-AP0361BH, AP0481BH, AP0561BH
<Concealed Duct High Static Pressure Type>
MMD-AP0181H, AP0241H, AP0271H,
MMD-AP0361H, AP0481H
<Slim Duct Type>
MMD-AP0071SPH, AP0091SPH, AP0121SPH,
MMD-AP0151SPH, AP0181SPH
<Under Ceiling Type>
MMC-AP0151H, AP0181H, AP0241H,
MMC-AP0271H, AP0361H, AP0481H
<High Wall Type>
MMK-AP0071H, AP0091H, AP0121H,
MMK-AP0151H, AP0181H, AP0241H,
MMK-AP0072H, AP0092H, AP0122H
<Floor Standing Cabinet Type>
MML-AP0071H, AP0091H, AP0121H,
MML-AP0151H, AP0181H, AP0241H
<Floor Standing Concealed Type>
MML-AP0071BH, AP0091BH, AP0121BH,
MML-AP0151BH, AP0181BH, AP0241BH
<Floor Standing Type>
MMF-AP0151H, AP0181H, AP0241H,AP0271H,
MMF-AP0361H, AP0481H, AP0561H
Outdoor Unit
<Inverter Unit>
MMY-MAP0802FT8
MMY-MAP1002FT8
MMY-MAP1202FT8
Heat Recovery Type
PRINTED IN JAPAN, Aug, 2005 ToMo
The indoor unit in Super Heat Recovery Multi System is common to one in Super Modular Multi System air conditioner.
Therefore refer to the service manuals for A03-009, A03-010, and A03-011 separately issued.
System air conditioner
Flow Selector Unit (FS unit)
RBM-Y1122FE
RBM-Y1802FE
RBM-Y2802FE

Other manuals for Toshiba MMU-AP0121YH

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Toshiba MMU-AP0121YH Specifications

General IconGeneral
CategoryAir Conditioner
Cooling Capacity (kW)3.5
Heating Capacity (kW)4.0
Power Supply220-240V, 50Hz
RefrigerantR410A
Indoor Unit Weight9 kg
Outdoor Unit Noise Level50 dB

Summary

PRECAUTIONS FOR SAFETY

Warning on Installation

Important warnings regarding the safe installation of the air conditioner.

Warning on Use

Guidelines for safe and proper usage of the air conditioner.

Warning on Moving/Repair

Safety precautions for moving or repairing the air conditioner.

CAUTION ON INSTALLATION

Check Fixing Method

Specific checks for proper installation methods and fixing.

NAME OF EACH PART

Indoor Unit Parts

Detailed identification of parts for various indoor unit types.

Sold Separately Parts

List of remote controllers and related accessories sold separately.

INDOOR UNIT PARTS IDENTIFICATION

Concealed Duct and High Static Pressure Types

Identification of parts for concealed duct and high static pressure indoor units.

Slim Duct and Under Ceiling Types

Identification of parts for slim duct and under ceiling indoor units.

High Wall Type

Identification of parts for high wall indoor units.

FLOOR STANDING AND OUTDOOR UNIT PARTS

Floor Standing Types

Identification of parts for floor standing cabinet, concealed, and standard types.

Outdoor Unit Parts

Identification of components of the outdoor unit.

REMOTE CONTROLLER PARTS NAME

Display Section

Explanation of the various indicators and displays on the remote controller.

Operation Section

Identification and function of the buttons on the remote controller.

REMOTE CONTROLLER OPERATION SECTION

Air Volume and Timer Controls

Controls for air volume selection and timer settings.

Fan, Filter, and Swing Controls

Controls for fan operation, filter reset, and air direction swing.

Power, Mode, and Temperature Controls

Controls for power, operation mode, and temperature adjustment.

CORRECT USAGE OF AIR CONDITIONER

Preparation and Requirements

Steps to prepare the unit and essential operating requirements.

Operation Mode and Air Volume Selection

How to select operation mode and adjust air volume.

Temperature Setting and Stopping Operation

How to set temperature and procedure to stop the unit.

ADJUSTMENT OF WIND DIRECTION

Cooling Operation Louver Setting

How to set the louver for optimal cooling airflow.

4-way Cassette Type Operation

Specific instructions for adjusting wind direction on 4-way cassette units.

AIR DIRECTION ADJUSTMENT UPWARD/DOWNWARD

Setting, Starting, and Stopping Swing

Steps to adjust air direction and enable/disable swing function.

UNIT Selection Control

Controls for selecting individual indoor units for direction settings.

AIR DIRECTION ADJUSTMENT FOR CASSETTE TYPES

2-way Cassette Type Information

Specific instructions for 2-way cassette unit air direction.

1-way Cassette Type (1H Series)

Specific instructions for 1-way cassette unit air direction.

AIR DIRECTION ADJUSTMENT FOR UNDER CEILING AND 1-WAY CASSETTE

Setting, Starting, and Stopping Swing

Steps to adjust air direction and enable/disable swing function.

UNIT Selection Control

Controls for selecting individual indoor units for direction settings.

HIGH WALL TYPE AIR DIRECTION ADJUSTMENT

Vertical and Horizontal Airflow Adjustment

How to adjust vertical and horizontal air direction for high wall units.

Setup of Air Direction and Swinging

How to set air direction and activate swing function.

FLOOR STANDING CABINET TYPE AIR OUTLET ADJUSTMENT

How to Change the Air Outlet Port

Procedure to change the direction of the air outlet port.

FLOOR STANDING TYPE AIR DIRECTION ADJUSTMENT

Vertical and Horizontal Airflow Adjustment

How to adjust vertical and horizontal air direction for floor standing units.

Information on Flap Operation

Notes on air direction adjustment and flap operation.

TIMER OPERATION

Timer Types and Operation

Explanation of timer types: OFF, Repeat OFF, and ON timer.

Cancelling Timer Operation

How to cancel an active timer setting.

INSTALLATION PROCEDURES

Installation Location Guidelines

Guidelines for selecting a suitable installation location for the unit.

Electrical Wiring Instructions

Instructions and warnings for electrical wiring and connections.

MAINTENANCE PROCEDURES

Cleaning and Resetting the Air Filter

Instructions on how to clean and reset the air filter indicator.

AIR FILTER MAINTENANCE BY UNIT TYPE

Wall, Cabinet, and Concealed Units

Procedure for removing and attaching air filters for various unit types.

Floor Standing Units

Procedure for removing and attaching air filters for floor standing units.

UNIT AND GRILL CLEANING

Returning and Cleaning the Air Filter

Steps to properly reinstall the air filter after cleaning.

Cleaning the Air Inlet Grille

Detailed instructions for cleaning the air inlet grille.

Cleaning Main Unit and Remote Controller

How to clean the main unit and remote controller safely.

LONG-TERM STORAGE AND PRE-OPERATION CHECKS

Preparing for Storage and Pre-Operation Checks

Steps for preparing the unit for storage and checks before operation.

ECONOMICAL OPERATION HINTS

Room Temperature and Air Filter Maintenance

Tips for maintaining optimal room temperature and clean air filters.

Managing Doors/Windows and Curtains

Advice on managing indoor temperature and using curtains.

Uniform Room Air Circulation

Adjusting airflow for even room air circulation.

AIR CONDITIONER OPERATIONS AND PERFORMANCE

Pre-Operation Checks and Heating Capacity

Essential checks and factors affecting heating capacity.

Defrost, Protection, and Fan Operation

Explanation of defrost cycle, protection features, and fan rotation.

Protective Devices and Operational Characteristics

Explanation of protective devices and performance during cooling/heating.

OPERATING CONDITIONS AND RE-INSTALLATION

Recommended Operating Conditions

Recommended temperature and humidity ranges for cooling and heating modes.

Re-installation Warnings and Unsuitable Locations

Critical warnings about improper re-installation and unsuitable installation locations.

Noise and Vibration Precautions

Precautions to minimize noise and vibration issues.

SYMPTOM TROUBLESHOOTING

Non-Failure Symptoms and Causes

Common sounds/smells and their causes, not indicating failure.

Automatic Operation and No Operation Troubleshooting

Troubleshooting steps for automatic operation changes and unit failure to operate.

Insufficient Cooling/Heating and Other Issues

Troubleshooting steps for insufficient cooling/heating and other operational problems.

CONFIRMATION AND CHECK

Confirmation of Error History

Procedure to check the stored trouble history of the air conditioner.

ACCESSORY PARTS AND SAFETY CAUTIONS

Accessory Parts List

List of accessory parts provided with the unit.

Explanation of Safety Indications

Explanation of warning and caution symbols used in the manual.

SAFETY CAUTIONS FOR INSTALLATION AND HANDLING

Critical Installation Warnings

Critical warnings for safe installation and handling.

Installation Handling Cautions

Cautions for safe installation and handling.

INSTALLATION OF NEW REFRIGERANT AIR CONDITIONER

Required Tools and Handling Precautions

Essential tools and safety precautions for R410A refrigerant installation.

Refrigerant Piping Guidelines

Guidelines for selecting and using piping materials for R410A.

SELECTION OF INSTALLATION PLACE

Installation Location Cautions

Caution regarding installation locations where combustible gas may leak.

Installation Space Requirements

Recommended clearance and space requirements for installation.

EQUIPMENT AND OUTDOOR UNIT HANDLING

Outdoor Unit Combinations

Table showing combinations of outdoor units based on HP.

Outdoor Unit Carrying In Procedures

Instructions for safely carrying and handling the outdoor unit.

OUTDOOR UNIT INSTALLATION

Drainage and Foundation Considerations

Ensuring proper drainage and a stable foundation to prevent noise and vibration.

Snowfall Protection Measures

Measures to protect the outdoor unit from snow accumulation.

OUTDOOR UNIT INSTALLATION DETAILS

Support and Grounding Methods

Correct method for placing stools and mounting vibration-proof rubber.

Connecting Multiple Outdoor Units

Guidelines for connecting multiple outdoor units in a system.

REFRIGERANT PIPING CONNECTION

Connecting Refrigerant Pipes and Requirements

Steps for connecting refrigerant pipes and requirements for brazing.

REFRIGERANT PIPING METHODS

Valve Connection Examples

Examples of connecting pipes using attached and locally procured parts.

Flare Machining Margins

Tables showing flare machining margins for rigid and imperial fittings.

REFRIGERANT PIPING SPECIFICATIONS

Brazed Pipe Coupling Sizes

Specifications for brazed pipe connections, including dimensions and tolerances.

Pipe Material and Capacity Code Selection

Guidance on selecting appropriate pipe materials and understanding capacity codes.

REFRIGERANT PIPING SELECTION

Pipe Size Selection for Various Connections

Tables detailing pipe sizes for various unit combinations and capacities.

Branching Section Selection

Guidance on selecting appropriate branching joints and headers.

FS UNIT AND PIPE THICKNESS SELECTION

Flow Selector Unit Selection

Information on selecting Flow Selector units based on capacity.

Minimum Wall Thickness for R410A Pipes

Recommended minimum wall thickness for copper pipes used with R410A.

REFRIGERANT PIPE LENGTH AND HEIGHT DIFFERENCE LIMITS

Allowable Pipe Lengths and Height Differences

Maximum permissible lengths and height differences for refrigerant pipes.

System Restrictions for Unit Combinations

System limitations regarding the number and capacity of connected units.

REFRIGERANT PIPING TESTS AND CHECKS

Airtight Test, Air Purge, and Valve Operations

Procedures for airtight testing, air purging, and opening valves.

Gas Leak Detection Methods

Methods for checking refrigerant gas leaks.

REFRIGERANT PIPING HEAT INSULATION

Heat Insulating Process for Pipes

Proper heat insulation for refrigerant pipes to prevent condensation.

REFRIGERANT ADDITION AND CHARGING

Adding Refrigerant Calculation and Procedure

Calculation and procedure for adding refrigerant.

Refrigerant Charging Methods

Method for charging refrigerant, including liquid and gas methods.

VALVE OPERATION AND PIPE INSULATION

Full Valve Opening Procedures

Instructions on how to fully open various valves.

Heat Insulation Application for Pipes

Applying heat insulation to pipes to prevent dew and water leaks.

SAFETY CAUTIONS FOR HANDLING AND INSTALLATION

Explanation of Safety Indications

Explanation of warning and caution symbols used in the manual.

Critical Installation Warnings

Critical warnings for safe installation and handling.

Installation Handling Cautions

Cautions for safe installation and handling.

ELECTRIC WORK GUIDELINES

Electrical Work Warnings and Cautions

Warnings and cautions regarding electrical work safety and regulations.

Wiring Requirements and Wire Connections

Requirements for proper electrical wiring and connection methods.

Power Supply Specifications for Outdoor Unit

Specifications for power supply to the outdoor unit.

ELECTRICAL WIRING DESIGN AND SPECIFICATIONS

Electrical Wiring Design Considerations

Design considerations for electrical wiring of the system.

Combined Outdoor Unit Power Supply

Power supply wiring for combined outdoor unit configurations.

Wire Size Selection for Unit Capacities

Table relating unit capacities to power supply wire sizes and fuses.

CONTROL WIRING AND POWER SUPPLY

Control Wire Specifications

Specifications for control wires between units.

Group Control Setup via Remote Controller

How to set up group control for multiple indoor units.

Indoor Unit Power Supply Wiring

Power supply wiring for indoor units when connected to an outdoor unit.

WIRING SPECIFICATIONS AND GROUP CONTROL

Control Wiring Details

Details on connecting control wires and shield wires.

Group Control Wiring for Multiple Units

Wiring for group control of multiple units via remote controller.

Indoor Unit Power Supply Wiring Details

Power supply specifications for indoor units and connection to FS units.

SYSTEM WIRING DIAGRAMS

System Wiring for Group Control

Wiring diagram for group control of indoor units connected to a FS unit.

ELECTRIC WORK: WIRE CONNECTIONS

Connecting Power and Control Wires to Outdoor Unit

How to connect power and control wires to the outdoor unit.

Power and Control Wire Connection Details

Connecting power supply wires, earthing wire, and control wires.

ADDRESS SETUP PROCEDURES

Automatic Address Setup Overview

Procedures for automatic address setup for indoor units.

Address Setup Procedure 1

First step of automatic address setup from the outdoor unit interface.

Header Unit P.C. Board Interface

Diagram and explanation of the header unit's P.C. board for setup.

ADDRESS SETUP FOR CENTRAL CONTROL

Address Setup Procedure 2

Second step for automatic address setup, especially with central control.

Line Address Switch Settings

Table showing DIP switch settings for line address configuration.

ADDRESS SETUP SWITCH CONFIGURATION

Switch Setup Procedures

Manual setup procedures using switches on the outdoor unit's P.C. board.

Relay Connector Connection Caution

Caution regarding relay connector connection during address setup.

MANUAL ADDRESS SETUP FROM REMOTE CONTROLLER

Remote Controller Setup Procedure

How to set indoor unit addresses using the wired remote controller.

Operation Procedure for Remote Setup

Step-by-step guide for manual address setup from the remote controller.

CONFIRMING INDOOR UNIT ADDRESS VIA REMOTE CONTROLLER

Indoor Unit Address Confirmation

How to check indoor unit addresses and their positions via the remote controller.

CONFIRMING UNIT NUMBERS IN GROUP CONTROL

Group Control Unit Confirmation

Procedure to check unit numbers in a group control configuration.

Refrigerant Line Unit Confirmation

How to confirm unit numbers in a refrigerant line using any wired remote controller.

CHANGING INDOOR UNIT ADDRESS VIA REMOTE CONTROLLER

Procedure for Changing Indoor Unit Address

How to change the address of an indoor unit using the remote controller.

CHANGING ALL INDOOR UNIT ADDRESSES VIA REMOTE CONTROLLER

Procedure for Changing All Indoor Unit Addresses

How to change all indoor unit addresses from a remote controller.

CLEARING INDOOR UNIT ADDRESSES

Method 1: Remote Controller Clearing

Clearing addresses individually using a wired remote controller.

Method 2: Header Unit Clearing

Clearing addresses from the header unit for a refrigerant line.

CONNECTING MULTIPLE INDOOR UNITS TO FS UNIT

Cautions and Incorrect Connection Examples

Important notes and incorrect connection examples for multi-unit systems.

Setting the Item Code

Procedure to set the Item code for multi-unit systems.

SETTING COOLING ONLY INDOOR UNIT

Procedure for Cooling Only Setup

Step-by-step guide to set an indoor unit to Cooling Only mode.

TEST OPERATION PROCEDURES

Pre-Operation Checks and Wired Remote Test Operation

Pre-operation checks and procedure for test operation using the wired remote controller.

Test Operation via Outdoor Unit P.C. Board

Performing test operations on individual units via the outdoor unit's P.C. board.

OUTDOOR UNIT P.C. BOARD TEST OPERATIONS

Individual Test Operation

Performing individual test operations using switches on the outdoor unit's P.C. board.

Collective Test Operation

Performing collective test operations for all connected units via the outdoor unit's P.C. board.

TROUBLESHOOTING AND CHECK CODES

Segment Display and Check Code Interpretation

How to interpret segment displays and check codes for diagnosing outdoor unit issues.

Outdoor Unit Check Codes [B]

A table listing outdoor unit check codes and their meanings.

TROUBLESHOOTING OUTDOOR UNIT CHECK CODES

Detailed Outdoor Unit Check Codes

More check codes for outdoor unit issues and their corresponding descriptions.

ACCESSORY PARTS AND SAFETY PRECAUTIONS

Accessory Parts List

List of accessory parts provided with the unit.

Safety Precautions for New Refrigerant Installation

Important cautions regarding the installation of new refrigerant air conditioners.

SAFETY CAUTIONS FOR INSTALLATION AND HANDLING

Critical Installation Warnings

Critical warnings for safe installation and handling.

Installation Handling Cautions

Cautions for safe installation and handling.

NEW REFRIGERANT INSTALLATION AND PIPING

Required Tools and Handling Precautions

Essential tools and safety precautions for R410A refrigerant installation.

Refrigerant Piping Guidelines

Guidance on selecting and using piping materials for R410A.

INSTALLATION PLACE SELECTION CAUTIONS

Combustible Gas Leak Location Caution

Caution regarding installation locations where combustible gas may leak.

INSTALLATION PLACE AND SPACE REQUIREMENTS

Installation Space Recommendations

Recommended clearance and space requirements for installation.

FLOW SELECTOR UNIT INSTALLATION

External View and Dimensions

Visual representation of the Flow Selector unit's external dimensions and ports.

FLOW SELECTOR UNIT INSTALLATION PROCEDURES

Hanging Bolt Installation

Steps for installing hanging bolts for unit mounting.

Ceiling Preparation and Bolt Installation

Considerations for ceiling structure and bolt installation procedures.

Attaching the Flow Selector Unit

Steps to attach the Flow Selector unit using hanging bolts.

REFRIGERANT PIPING LIMITS AND MATERIALS

Permissible Pipe Length and Height Difference

Limits on pipe length and height difference for system performance.

Piping Material and Connection Dimensions

Specifications for piping materials and connection dimensions.

Indoor and Multi-Unit Connection Piping Sizes

Pipe size specifications for indoor and multi-unit connections.

REFRIGERANT PIPING TESTS AND CHECKS

Airtight Test, Air Purge, and Valve Operations

Procedures for airtight testing, air purging, and opening valves.

Gas Leak Detection Methods

Methods for checking refrigerant gas leaks.

REFRIGERANT PIPING HEAT INSULATION

Heat Insulating Process for Pipes

Proper heat insulation for refrigerant pipes to prevent condensation.

ELECTRIC WORK GUIDELINES

Electrical Work Warnings and Cautions

Warnings and cautions regarding electrical work safety and regulations.

Wiring Requirements and Wire Connections

Requirements for proper electrical wiring and connection methods.

ELECTRIC WORK: CONNECTION DIAGRAMS

Flow Selector and Indoor Unit Wiring

Wiring diagram showing connections between Flow Selector unit and indoor unit.

ELECTRIC WORK: INDOOR UNIT WIRING

Various Indoor Unit Wiring Details

Wiring connections for various indoor unit types.

ELECTRIC WORK: CASSETTE AND FLOOR STANDING UNIT WIRING

2-way Cassette and 1-way Cassette/Floor Standing Wiring

Wiring details for 2-way cassette and 1-way cassette/floor standing units.

ELECTRIC WORK: CASSETTE AND DUCT UNIT WIRING

1-way Cassette and Concealed Duct Wiring

Wiring details for 1-way cassette and concealed duct units.

ELECTRIC WORK: CASSETTE AND DUCT UNIT WIRING (CONT.)

1-way Cassette and Concealed Duct Wiring

Wiring details for 1-way cassette and concealed duct units.

ELECTRIC WORK: SLIM DUCT AND HIGH STATIC PRESSURE DUCT WIRING

Concealed Slim Duct and High Static Pressure Duct Wiring

Wiring details for concealed slim duct and high static pressure units.

ELECTRIC WORK: UNDER CEILING, CASSETTE, AND HIGH WALL UNIT WIRING

Under Ceiling/1-way Cassette and High Wall Unit Wiring

Wiring details for under ceiling, 1-way cassette, and high wall units.

ELECTRIC WORK: HIGH WALL AND FLOOR STANDING CABINET UNIT WIRING

High Wall and Floor Standing Cabinet Unit Wiring

Wiring details for high wall and floor standing cabinet units.

ELECTRIC WORK: FLOOR STANDING CONCEALED UNIT WIRING

Floor Standing Concealed Unit Wiring

Wiring details for floor standing concealed indoor units.

CONNECTING MULTIPLE INDOOR UNITS TO FS UNIT

Cautions and Incorrect Connection Examples

Important notes and incorrect connection examples for multi-unit systems.

Setting the Item Code

Procedure to set the Item code for multi-unit systems.

REFRIGERANT LEAKAGE WARNINGS

Check of Concentration Limit Requirements

Requirements for ensuring refrigerant concentration limits are not exceeded in installation rooms.

Notes on Refrigerant Volume and Room Size

Notes on refrigerant volume and room size related to concentration.

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