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Hitachi RAS-50YHA3 User Manual

Hitachi RAS-50YHA3
24 pages
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SPLIT TYPE AIR CONDITIONER
INDOOR UNIT/OUTDOOR UNIT
MODEL
RAS-50YHA3/RAC-50YHA3
RAS-60YHA3/RAC-60YHA3
INDOOR UNIT
RAC-50YHA3
Instruction manual
Page 1~24
To obtain the best performance, please read this instruction manual completely.
OUTDOOR UNIT
RAC-60YHA3
RAS-50YHA3
RAS-60YHA3
RAS-50-60YHA3 (EN1) 1 12/21/11 9:32 AM

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Hitachi RAS-50YHA3 Specifications

General IconGeneral
TypeSplit System
Cooling Capacity5.0 kW
RefrigerantR410A
Power Supply220-240V, 50Hz
Indoor Unit Weight9.5 kg
Noise Level (Outdoor)50 dB

Summary

SAFETY PRECAUTION

PRECAUTIONS DURING INSTALLATION

Important safety measures to follow during the unit's installation process.

PRECAUTIONS DURING SHIFTING OR MAINTENANCE

Safety guidelines for moving or performing maintenance on the air conditioner.

PRECAUTIONS DURING OPERATION

Essential safety precautions to observe while operating the air conditioner.

NAMES AND FUNCTIONS OF EACH PART

INDOOR UNIT COMPONENTS

Describes the components and functions of the indoor air conditioner unit.

OUTDOOR UNIT COMPONENTS

Details the components and functions of the outdoor air conditioner unit.

INDOOR UNIT INDICATORS AND CONTROLS

OPERATION AND FILTER LAMPS

Explains the meaning of the operation and filter indicator lamps.

TEMPORARY OPERATION SWITCH

Details how to use the temporary switch for operation control.

REMOTE CONTROL FUNCTIONS AND USAGE

REMOTE CONTROL LAYOUT AND DISPLAY

Explains the signal window, display, and various buttons on the remote.

REMOTE CONTROL BUTTON OPERATIONS

Details the purpose and operation of each button on the remote control.

REMOTE CONTROL PRECAUTIONS

Provides important guidelines for handling and using the remote controller.

ADVANCED UNIT FUNCTIONS

AUTO RESTART OPERATION

Explains how the unit automatically restarts after a power interruption.

AUTOMATIC MODE SELECTION

Describes how the unit automatically selects heating or cooling based on room temperature.

HEATING OPERATION GUIDE

HEATING OPERATION STEPS

How to set up and operate the unit for heating.

DEFROSTING CYCLE EXPLANATION

Details the automatic defrosting process during heating operation.

DEHUMIDIFYING OPERATION

DEHUMIDIFYING MODE SETUP

How to set up and operate the unit for dehumidifying.

DEHUMIDIFYING FUNCTION MECHANICS

Explains how the unit reduces humidity and its behavior based on temperature settings.

COOLING OPERATION

COOLING MODE SETUP

How to set up and operate the unit for cooling.

COOLING OPERATION CONDITIONS

Notes on starting cooling based on current room temperature.

FAN OPERATION MODE

FAN MODE SETUP

How to set up and operate the unit in fan-only mode.

FAN SPEED SELECTION

Explains the available fan speeds including AUTO, HI, MED, LOW, and SILENT.

TIMER FUNCTION SETUP

SETTING CURRENT TIME

Instructions for setting the current time on the remote controller.

OFF-TIMER PROGRAMMING

Guides on how to set the timer to turn the unit off.

ON-TIMER PROGRAMMING

Guides on how to set the timer to turn the unit on.

COMBINED TIMER FUNCTIONS

SETTING ON/OFF COMBINED TIMER

Instructions for setting both ON and OFF timers simultaneously.

CANCELING TIMER RESERVATIONS

Explains how to cancel a previously set timer reservation.

SLEEP TIMER FUNCTION

SETTING THE SLEEP TIMER

Guides on how to set the sleep timer for automatic shutdown.

CANCELING SLEEP TIMER SETTINGS

Explains how to cancel the sleep timer reservation.

ADJUSTING AIRFLOW DIRECTION

VERTICAL AIR DEFLECTOR CONTROL

How to adjust the horizontal air deflector for upward and downward airflow.

HORIZONTAL AIR DEFLECTOR CONTROL

How to adjust the vertical air deflector for left and right airflow.

REMOTE CONTROL AND POWER MANAGEMENT

BATTERY REPLACEMENT PROCEDURE

Step-by-step guide for replacing batteries in the remote controller.

TEMPORARY SWITCH OPERATION

Instructions for using the temporary switch when the remote is not working.

CIRCUIT BREAKER SHUTDOWN

Guidance on using the circuit breaker when the unit is not in use.

OPTIMAL OPERATION GUIDELINES

ROOM ENVIRONMENT AND VENTILATION

Tips on room temperature, curtains, and ventilation for efficient operation.

USAGE, SAFETY, AND MAINTENANCE TIPS

Advice on timer usage, child safety, and pre-filter cleaning.

USER INFORMATION AND PRECAUTIONS

ROOM HEAT LOAD AND PERFORMANCE

Discusses how room heat sources affect air conditioner performance.

LONG-TERM STORAGE GUIDELINES

Guidance on what to do when the unit is not used for an extended period.

EXTERNAL FACTOR PRECAUTIONS

Precautions during lightning and advice on avoiding electrical interference.

AIR PURIFYING FILTER INSTALLATION

FILTER ATTACHMENT PROCEDURE

Step-by-step instructions for attaching the air purifying filters.

PRE-FILTER MAINTENANCE

PRE-FILTER CLEANING PROCEDURE

Detailed procedure for cleaning the pre-filter and air purifying filter.

FRONT PANEL MAINTENANCE

FRONT PANEL CLEANING AND REMOVAL

Instructions for cleaning and removing the washable front panel.

LONG-TERM STORAGE AND INSPECTION

MAINTENANCE FOR LONG OFF PERIOD

Steps to prepare the unit for extended periods of non-operation.

REGULAR INSPECTION CHECKLIST

Key points to check during regular half-yearly or yearly inspections.

AFTER SALE SERVICE AND WARRANTY

SERVICE TROUBLESHOOTING CHECKLIST

Points to check when requesting service for operational issues.

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