EasyManua.ls Logo

Toshiba MMU-AP0122H User Manual

Toshiba MMU-AP0122H
131 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
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-AP0122H

Questions and Answers:

Toshiba MMU-AP0122H Specifications

General IconGeneral
Cooling Capacity (kW)3.5
Heating Capacity (kW)4.0
Power Source220-240V, 50Hz
RefrigerantR410A
Indoor Unit Weight9 kg

Summary

SAFETY CAUTION

Safety Precautions

Important safety precautions for troubleshooting, repair, and general handling of the unit.

SPECIFICATIONS

Indoor Unit Specifications

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

CONSTRUCTION VIEWS (EXTERNAL VIEWS)

External Views and Dimensions

Diagrams illustrating the external dimensions, connection ports, and installation clearances of the indoor unit.

WIRING DIAGRAM

4-Way Air Discharge Cassette Type Wiring

Detailed wiring diagram for the 4-Way Air Discharge Cassette type indoor unit, showing connections between components.

PARTS RATING

Parts Rating and Identification

Lists the rating and names of various parts used in the indoor unit, with model compatibility.

REFRIGERATING CYCLE DIAGRAM

Refrigerating Cycle Diagram and Functional Parts

Diagram illustrating the air conditioner's refrigerating cycle and outlining the functions of key components.

CONTROL OUTLINE

Control Specifications

Outlines the control specifications for the air conditioner, including power reset behavior and operation mode selection.

CONFIGURATION OF CONTROL CIRCUIT

Indoor Unit Control Circuit Configuration

Block diagrams detailing the internal control circuit configuration of the indoor unit, including remote controller and network connections.

APPLIED CONTROL

Setup of Selecting Function in Indoor Unit

Procedure for setting various functions in the indoor unit using a wired remote controller, detailing item codes and data.

Remote Location ON/OFF Control

Details the remote location ON/OFF control box and its wiring for controlling unit operation remotely.

Ventilating Fan Control

Explains how to control the ventilating fan from the remote controller for systems with air-to-air heat exchangers.

Leaving-ON Prevention Control

Describes the function to prevent unintended operation or stop, controlled by external contacts or card switches.

Power Peak-Cut from Indoor Unit

Details the function to force thermostat-OFF operation when the relay is turned on.

Address Setup

Manual procedure for setting indoor unit addresses and group configurations from the remote controller.

Function Selection Setup

Procedure for setting various functions and parameters in the indoor unit using the remote controller.

How to Check Unit Numbers

Instructions on how to check and verify indoor unit numbers and their positions within the system using the remote controller.

How to Change Indoor Addresses

Steps to change indoor unit addresses manually from the remote controller, ensuring no duplication.

Function to Clear Error

Methods for clearing detected errors from the remote controller, covering both outdoor and indoor unit errors.

Monitoring Function of Remote Controller

Guide to using the remote controller's monitoring function to check sensor temperatures and operating statuses.

INSTALLATION

Installation Precautions

Guidelines and warnings regarding installation location, electrical wiring, and potential noise/vibration issues.

Installation Manual Guidelines

Information on accessory parts and general safety precautions to be followed during installation work.

Selection of Installation Place

Criteria and recommendations for selecting the appropriate installation location, considering safety and operational factors.

Installation Space Requirements

Specifies the required space around the unit for installation, servicing, and proper ventilation.

Installation Procedures and Components

Details on external views, ceiling opening, hanging bolts, and related installation procedures and components.

TROUBLESHOOTING

Troubleshooting Summary and Procedures

Provides a summary of common troubles, check items, and troubleshooting procedures for identifying and resolving issues.

How to Check

Explains how to use self-diagnosis functions on remote controllers and outdoor units to identify error codes.

Check Code Display List (Indoor Unit)

Lists check codes detected by indoor units and their corresponding main defective positions and descriptions.

Check Code Display List (Outdoor Unit)

Lists check codes detected by outdoor units, including IPDU errors, and their corresponding main defective positions and descriptions.

Troubleshooting by Check Display on Remote Controller

Guide to interpreting check codes and error histories displayed on wired remote controllers for troubleshooting.

Indoor Unit Display Part (Wireless Type)

Explains how to interpret error codes displayed on the wireless remote controller's receiving unit.

DETACHMENTS

General Component Removal

Instructions for detaching and attaching common parts like suction grilles and electric parts covers.

Ceiling Panel and Accessories

Procedure for removing and installing the ceiling panel and associated adjustment corner caps.

Major Component Servicing

Procedures for detaching and installing key components such as the P.C. board, fan motor, drain pump, and heat exchanger.

Drainage System Components

Steps for detaching and attaching float switch assembly and drain pan, ensuring proper water management.

P.C. BOARD EXCHANGE PROCEDURES

Exchange of P.C. Board for Indoor Service

Procedures for replacing the indoor unit P.C. board, covering data backup, restoration, and setup.

Setting Data Read Out from EEPROM

Steps to read out setting data from the EEPROM using the remote controller before P.C. board replacement.

Wiring the Setting Data to EEPROM

Procedure for writing setting data to the EEPROM, including model type, capacity, and address settings.

EXPLODED VIEWS AND PARTS LIST

Exploded Views and Parts List (MMU-AP0092H to AP0242H)

Exploded diagrams and parts list for MMU-AP0092H, AP0122H, AP0152H, AP0182H, and AP0242H models.

Exploded Views and Parts List (MMU-AP0272H to AP0562H)

Exploded diagrams and parts list for MMU-AP0272H, AP0302H, AP0362H, AP0482H, and AP0562H models.

Remote Controller Parts List

Parts list and exploded view for RBC-U31PG/PGS and RBC-AX31U remote controllers.

Related product manuals