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Hitachi RAK-25NHA2 User Manual

Hitachi RAK-25NHA2
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SPLIT TYPE AIR CONDITIONER
INDOOR UNIT
RAK-18NHA2
RAK-25NHA2
RAK-35NHA2
RAK-50NHA2
INDOOR UNIT
MODEL
RAK-18NHA2
RAK-25NHA2
RAK-35NHA2
RAK-50NHA2
RAK-18-25-35-50NHA2-1 1RAK-18-25-35-50NHA2-1 1 6/3/14 11:25 AM6/3/14 11:25 AM
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Hitachi RAK-25NHA2 Specifications

General IconGeneral
Star Rating3 Star
Cooling Capacity2.5 kW
Indoor Unit Weight9 kg
TypeSplit Air Conditioner
Power Supply230 V / 50 Hz

Summary

SAFETY PRECAUTION

PRECAUTIONS DURING INSTALLATION

Important safety measures to follow before and during unit installation.

PRECAUTIONS DURING SHIFTING OR MAINTENANCE

Safety guidelines for moving or servicing the air conditioner.

PRECAUTIONS DURING OPERATION

Essential safety rules to observe while operating the air conditioner.

NAMES AND FUNCTIONS OF EACH PART

INDOOR UNIT

Identifies and describes components of the indoor unit.

MODEL NAME AND DIMENSIONS

Lists available models and their physical dimensions.

INDOOR UNIT INDICATORS

FILTER LAMP

Indicator light for filter cleaning notification.

OPERATION LAMP

Indicator light for unit operational status.

TIMER LAMP

Indicator light for timer function status.

TEMPORARY SWITCH

Manual switch for operation when remote fails.

PREPARATION BEFORE OPERATION

To install the batteries

Instructions for inserting batteries into the remote controller.

To fix the remote controller holder to the wall

Steps for mounting the remote controller holder.

To set calendar and clock

Guide for setting the unit's calendar and clock.

NAMES AND FUNCTIONS OF REMOTE CONTROLLER

Signal Transmitting/Receiving Window

Component for sending signals to the indoor unit.

Sensor

Detects ambient temperature around the remote.

Display

Shows room temp, time, timer, function, and airflow.

ROOM TEMPERATURE setting Buttons

Buttons to adjust the desired room temperature.

FAN SPEED selector Button

Button to select desired fan speed.

ECO Button

Button to activate energy-saving ECO mode.

POWERFUL Button

Activates maximum power operation mode.

MODE selector Button

Selects operating modes like AUTO, HEAT, COOL.

SILENT Button

Activates ultra-slow fan speed for quiet operation.

AUTO SWING (Vertical) Button

Controls the horizontal air deflector swing.

AUTO SWING (Horizontal) Button

Controls the vertical air deflector swing.

VARIOUS FUNCTIONS

Auto Restart Control

Automatic unit restart after power interruption.

AUTOMATIC OPERATION

Unit automatically selects mode based on room temp.

HEATING OPERATION

Defrosting

Process to remove frost from the outdoor unit heat exchanger.

DEHUMIDIFYING OPERATION

Dehumidifying Function

How the unit reduces humidity in the room.

COOLING OPERATION

FAN OPERATION

AUTO SWING OPERATION

VERTICAL SWING

Controls the up and down movement of the deflector.

HORIZONTAL SWING

Controls the right and left movement of the deflector.

POWERFUL OPERATION

SILENT OPERATION

ECO OPERATION

LEAVE HOME(LH) OPERATION

CLEAN (ONE TOUCH CLEAN) OPERATION

ONCE TIMER (ON/OFF TIMER) OPERATION

OFF TIMER

Sets the unit to turn off at a preset time.

ON TIMER

Sets the unit to turn on at a designated time.

ON/OFF TIMER

Sets the unit to turn on and off at designated times.

ECO SLEEP TIMER OPERATION

To set ECO SLEEP TIMER and ON TIMER

Combines ECO sleep timer with ON timer function.

WEEKLY TIMER OPERATION

INFO FUNCTION

To check temperature around remote controller

Displays ambient temperature detected by the remote.

To check monthly power consumption

Shows historical energy usage data.

Current calendar and clock can be retrieved from indoor unit

Retrieves and displays the unit's current time settings.

OPERATION MODE LOCK

CIRCUIT BREAKER

THE IDEAL WAYS OF OPERATION

FOR USER'S INFORMATION

The Air Conditioner And The Heat Source In The Room

How room heat affects air conditioner performance.

Not Operating For A Long Time

Recommendations for long-term storage or shutdown.

When Lightning Occurs

Safety measures during thunderstorms.

Interference From Electrical Products

Avoiding noise interference from other devices.

ATTACHING THE AIR PURIFYING FILTERS

MAINTENANCE

PRE-FILTER

Instructions for cleaning the air pre-filter.

Washable Front Panel

Steps for cleaning the removable front panel.

MAINTENANCE BEFORE LONG OFF PERIOD

REGULAR INSPECTION

AFTER SALE SERVICE AND WARRANTY

WHEN ASKING FOR SERVICE, CHECK THE FOLLOWING POINTS

Troubleshooting guide for common issues.

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