HITACHI

RAC-M25EAG - Air-conditioner HITACHI - Free user manual and instructions

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USER MANUAL RAC-M25EAG HITACHI

SPLIT TYPE AIR CONDITIONER

natural_image Line drawing of a Siemens HVAC air conditioner unit (no text or symbols visible)

RAC-M25EAG
RAC-M35EAG
RAC-L10EAG

RAC-L14EAG
RAC-X10EAG
RAC-X14EAG
HITACHI RAC-M25EAG - SPLIT TYPE AIR CONDITIONER - 1

natural_image Line drawing of a Hitachi air conditioner unit with fan and ventilation slots (no text or symbols on the device itself)

RAC-M50EAG
RAC-X18EAG

INDOOR UNIT
HITACHI RAC-M25EAG - SPLIT TYPE AIR CONDITIONER - 2

natural_image Technical line drawing of a cylindrical mechanical component with no visible text or symbols

RAS-M25EAG
RAS-M35EAG
RAS-M50EAG
RAS-L10EAG
RAS-L14EAG

RAS-X10EAG
RAS-X14EAG
RAS-X18EAG
HITACHI RAC-M25EAG - SPLIT TYPE AIR CONDITIONER - 3

Instruction manual

To obtain the best performance and ensure years of trouble free use, please read this instruction manual completely.

This room air conditioner is only for consumer usage.

Do not use for preservation of foods, animals, plants, precision machines, art, medicine or such.

SAFETY PRECAUTION

HITACHI RAC-M25EAG - SAFETY PRECAUTION - 1

This appliance is filled with R32.

  • Please read the "Safety Precaution" carefully before operating the unit to ensure correct usage of the unit.
  • Pay special attention to signs of “▲ Warning” and “▲ Caution”. The “Warning” section contains matters which, if not observed strictly, may cause death or serious injury. The “Caution” section contains matters which may result in serious consequences if not observed properly. Please observe all instructions strictly to ensure safety.
  • The signs indicate the following meanings. (The following are examples of signs.)

HITACHI RAC-M25EAG - SAFETY PRECAUTION - 2

Make sure to connect earth line.

HITACHI RAC-M25EAG - SAFETY PRECAUTION - 3

This sign in the figure indicates prohibition.

HITACHI RAC-M25EAG - SAFETY PRECAUTION - 4

Indicates the instructions that must be followed.

- Please keep this manual after reading.

PRECAUTIONS DURING INSTALLATION

HITACHI RAC-M25EAG - SAFETY PRECAUTION - 5WARNING·Do not reconstruct the unit.Water leakage, fault, short circuit or fi re may occur if you reconstruct the unit by yourself.HITACHI RAC-M25EAG - SAFETY PRECAUTION - 6PROHIBITION
·Please ask your sales agent or qualified technician for the installation of your unit.Water leakage, short circuit or fire may occur if you install the unit by yourself.
·Please use earth line.Do not place the earth line near water or gas pipes, lightning-conductor, or the earth line of telephone. Improper installation of earth line may cause electric shock or fire.CONNECT EARTH LINE
·Be sure to use the specified piping set for R32. Otherwise, this may result in broken copper pipes or faults.·Do not use refrigerant other than the one indicated on the outdoor unit (R32) when installing, moving or repairing.Using other refrigerants may cause trouble or damage to the unit, and personal injury.
CAUTION·A circuit breaker should be installed depending on the mounting site of the unit.Without a circuit breaker, the danger of electric shock exists.HITACHI RAC-M25EAG - SAFETY PRECAUTION - 7PROHIBITION
·Do not install the unit near a location where there is flammable gas.The outdoor unit may catch fire if flammable gas leaks around it.
·Please ensure smooth flow of water when installing the drain hose.
·Make sure that a single phase 220V-230V power source is used.The use of other power sources may cause electrical components to overheat and lead to fi re.HITACHI RAC-M25EAG - SAFETY PRECAUTION - 8PROHIBITION

PROHIBITION

PRECAUTIONS DURING SHIFTING OR MAINTENANCE
WARNINGShould abnormal situation arise (like burning smell), please stop operating the unit and turn off the circuit breaker. Contact your agent. Fault, short circuit or fire may occur if you continue to operate the unit under abnormal situation.HITACHI RAC-M25EAG - SAFETY PRECAUTION - 9
Please contact your agent for maintenance. Improper self maintenance may cause electric shock and fi re.
Please contact your agent if you need to remove and reinstall the unit. Electric shock or fire may occur if you remove and reinstall the unit yourself improperly.

PROHIBITION

PRECAUTIONS DURING OPERATION
WARNING· Avoid an extended period of direct airflow for your health. HITACHI RAC-M25EAG - SAFETY PRECAUTION - 10PROHIBITION
· Do not put objects like thin rods into the panel of blower and suction side because the high-speed fan inside may cause danger.
· Do not use any conductor as fuse wire, this could cause fatal accident. HITACHI RAC-M25EAG - SAFETY PRECAUTION - 11PROHIBITION
· During thunder storm, disconnect the plug top and turn off the circuit breaker.
· Spray cans and other combustibles should not be located within a meter of the air outlets of both indoor and outdoor units. HITACHI RAC-M25EAG - SAFETY PRECAUTION - 12As a spray can's internal pressure can be increased by hot air, a rupture may result. PROHIBITION
CAUTION• There are no shall be operated under the manufacturer sp for any other intended use. HITACHI RAC-M25EAG - SAFETY PRECAUTION - 13PROHIBITION
DON'T WETDo not attempt to operate the unit with wet hands, this could cause fatal accident.
• When operating the unit with burning equipments, regularly ventilate the room to avoid oxygen insufficiency. [STRICTLY OBSERVE PRECAUTIONS]
PROHIBITIONDo not direct the cool air coming out from the air-conditioner panel to face household heating apparatus as this may affect the working of apparatus such as the electric kettle, oven etc.
• do the remaining part is always stable, firm and without defect. If not, the outdoor unit may collapse and cause danger. PROHIBITION
PROHIBITIONDo not wash the unit with water or place a water container such as a vase on the indoor unit.Electrical leakage could be present and cause electric shock.
• Do not place plants directly under the airflow as it is bad for the plants. PROHIBITION
OFFBe sure to stop the operation by using the remote controller and turn off the circuit breaker during cleaning, the high-speed fan inside the unit may cause danger.
• Turn off the circuit breaker if the unit is not be operated for a long period. OFF
PROHIBITIONDo not climb on the outdoor unit or put objects on it.
• When operating the unit with the door and windows opened, (the room humidity is always above 80%) and with the air deflector facing down or moving automatically for a long period of time, water will condense on the air deflector and drips down occasionally. This will wet your furniture. Therefore, do not operate under such condition for a long time. PROHIBITION
PROHIBITIONIf the amount of heat in the room is above the cooling or heating capability of the unit (for example: more people entering the room, using heating equipments and etc.), the preset room temperature cannot be achieved.
• Indoor unit cleaning must be performed by authorized personnel only. Consult your sales agent. Using a commercially available detergent or similar can damage the plastic parts or clog the drain pipe, causing water to drip with potential electric shock hazard. PROHIBITION
DON'T TOUCHnot touch the air outlet, bottom surface and aluminium fin of the outdoor unit.You may get hurt.
• Do not touch the refrigerant pipe and connecting valve.Burns may result. DON'T TOUCH
• This appliance is not to be used by children or persons with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction. Children must be supervised not to play with the appliance.

OPERATING RANGE

Operation mode Cooling /Dehumidifying Heating
C^12 ot 51-C^34 ot 01-e

NAMES AND FUNCTIONS OF EACH PART

INDOOR UNIT

HITACHI RAC-M25EAG - INDOOR UNIT - 1

text_image Technical diagram of a wall-mounted air conditioner with labeled components and control panel

Air filter

To prevent dust from coming into the indoor unit. (Refer page 6)

Front panel

(Refer page 7)

Indoor unit indicators

Light indicator showing the operating condition. (Refer page 5)

Horizontal deflector Vertical deflector (Air Outlet)

Remote controller

Send out operation signal to the indoor unit. So as to operate the whole unit.

OUTDOOR UNIT

RAC-M25EAG RAC-M35EAG RAC-L10EAG RAC-L14EAG RAC-X10EAG RAC-X14EAG

Air outlet

When "heating" operation is performed, cool air blows and when "cooling" or "dehumidifying" operation is performed, warm air blows.

Drain hose

Drains the dehumidified water from the indoor unit to the outdoor during "cooling" or "dehumidifying" operation.

Piping and Wiring

Air inlets (Rear and left sides)

Drain port

HITACHI RAC-M25EAG - Drain port - 1

text_image Earth terminal

RAC-M50EAG RAC-X18EAG

Air outlet

When "heating" operation is performed, cool air blows and when "cooling" or "dehumidifying" operation is performed, warm air blows.

Drain hose

Drains the dehumidified water from the indoor unit to the outdoor during "cooling" or "dehumidifying" operation.

Piping and Wiring

Air inlets (Rear and left sides)

Drain port

HITACHI RAC-M25EAG - Drain port - 1

text_image HITACHI ort Earth terminal

About the outdoor unit:

  • When "Stop" is selected during operation of the indoor unit, the fan of the outdoor unit continues turning for 10 to 60 seconds to cool the electric parts down.
  • In heating operation, condensate or water due to defrosting will flow. Do not cover the drain port of the outdoor unit because such water may freeze in the chilly area.
  • When the outdoor unit is hung on the wall, install the bush and drain pipe on the drain port and drain water.

MODEL NAME AND DIMENSIONS

MODELWIDTH (mm)HEIGHT (mm)DEPTH (mm)
RAS-M25/35/50EAG,L10/14EAG,X10/14/18EAG780 280 215
RAC-25/35EAG,L10/14EAG,X10/14EAG660 530827
RAC-50EAG,X18EAG792 600 299

INDOOR UNIT INDICATIONS

HITACHI RAC-M25EAG - INDOOR UNIT INDICATIONS - 1

text_image TIMER LAMP (Orange) This lamp lights when the timer is working. Temporary Switch OPERATION LAMP (Yellow) This lamp lights during operation. The OPERATION LAMP flashes in the following cases during heating. (1) During preheating For about 2-3 minutes after starting up. (2) During defrosting Defrosting will be performed about once an hour when frost forms on the heat exchanger of the outdoor unit, for 5-10 minutes each time.

TEMPORARY SWITCH

HITACHI RAC-M25EAG - TEMPORARY SWITCH - 1

CAUTION

Turn off the circuit breaker if the unit is not be operated for a long period.

Use this switch to start and stop when the remote controller does not work.

  • By pressing the temporary switch, the operation is done in automatic mode.
  • When the operation is done using the temporary switch after the power source is turned off and turn on again, the operation is done in automatic mode.

☆ If the power stays on and the unit is not operated, power is slightly consumed in the control circuit. The power is saved by turning off the power switch (or the circuit breaker when the power is supplied from the outdoor unit).

This controls the operation function and timer setting of the room air conditioner. The range of control is about 7 meters. If indoor lighting is controlled electronically, the range of control may be shorter.

HITACHI RAC-M25EAG - CAUTION - 1

text_image Signal Transmission HITACHI Transmission Sign The transmission sign blinks when a signal has been send. POWERFUL Button Press this button to start powerful operation. ( Page 4 ) TEMPERATURE Button Room temperature setting. Value will change quicker when keep pressing. ( Page 3 ) FAN SPEED Button Select the fan speed for cooling and heating mode. ( Page 3 ) AUTO SWING Button Control the angle of the horizontal air defl ector. ( Page 7 ) MODE Button Select the operation mode. ( Page 3 ) STOP Button Press this button to stop operation. ECO Button Use this button to set the ECO mode. ( Page 6 ) OFF TIMER Button Select the turn OFF time. ( Page 4 ) ON TIMER Button Select the turn ON time. ( Page 4 )

Precautions for Use

  • Do not put the remote controller under direct sunlight and high temperature.
  • Do not drop it on the floor, and protect it from water.
  • If you press the FUNCTION button during operation, the air conditioner may stop for about 3 minutes for protection before you can start it again.

■ Please use under below condition when you want to set the function mode, room temperature and fan speed manually.

HEATING DEHUMIDIFYING COOLING
Outdoor Temperature24°C belowRoom Temperature16°C aboveOutdoor Temperature21°C above

• Every time you press the button, the mode will change as the below.

HITACHI RAC-M25EAG - Precautions for Use - 1

: HEATING

: DEHUMIDIFYING

: COOLING

2 ROOM TEMPERATURE SETTING

HITACHI RAC-M25EAG - ROOM TEMPERATURE SETTING - 1

HITACHI RAC-M25EAG - ROOM TEMPERATURE SETTING - 2

text_image ■Recommend Temperature Heating ~24°C Dehumidify 20~26°C Cooling ~28°C

- The cooling operation does not start if the temperature setting is higher than the current room temperature.

3 FAN SPEED SETTING

- Every time you press the button, fan speed will change as below sequence.

HITACHI RAC-M25EAG - FAN SPEED SETTING - 1

text_image HEATING COOLING } AUTO → HIGH → MED → LOW → SILENT DEHUMIDIFYING : LOW → SILENT

4 Press the OFF (STOP) button

• Operation stops with a beep.

HITACHI RAC-M25EAG - Press the OFF (STOP) button - 1

text_image HITACHI 27°C E ECON ECO OFF POWERFUL

HITACHI RAC-M25EAG - Press the OFF (STOP) button - 2

text_image HITACHI 27°C ON ECO OFF POWERFUL OFF ON

HITACHI RAC-M25EAG - Press the OFF (STOP) button - 3

text_image HITACHI 27°C SUB......ON...... ECO OFF POWERFUL OFF ON

HITACHI RAC-M25EAG - Press the OFF (STOP) button - 4

text_image HITACHI 27°C ON ECO OFF POWERFUL

■ ON Timer and OFF Timer are available.

Timer Reservation

HITACHI RAC-M25EAG - Timer Reservation - 1

HITACHI RAC-M25EAG - Timer Reservation - 2

OFF TIME setting

  • Select the OFF TIME by pressing the ⏻(OFF) Button.
  • Setting time will change according to the below sequence when you press the button.

HITACHI RAC-M25EAG - OFF TIME setting - 1

flowchart
graph LR
    A["1"] --> B["2"]
    B --> C["3"]
    C --> D["..."]
    D --> E["9"]
    E --> F["10"]
    F --> G["11"]
    G --> H["12"]
    H --> I["Timer off"]
    I --> A
    style A fill:#f9f,stroke:#333
    style B fill:#f9f,stroke:#333
    style C fill:#f9f,stroke:#333
    style D fill:#f9f,stroke:#333
    style E fill:#f9f,stroke:#333
    style F fill:#f9f,stroke:#333
    style G fill:#f9f,stroke:#333
    style H fill:#f9f,stroke:#333
    style I fill:#f9f,stroke:#333

■ Operation stop at setting time

HITACHI RAC-M25EAG - OFF TIME setting - 2

  • Select the ON TIME by pressing the (ON) Button.
  • Setting time will change according to the below sequence when you press the button.

HITACHI RAC-M25EAG - OFF TIME setting - 3

flowchart
graph LR
    A["1"] --> B["2"]
    B --> C["3"]
    C --> D["..."]
    D --> E["9"]
    E --> F["10"]
    F --> G["11"]
    G --> H["12"]
    H --> I["Timer on"]
    style A fill:#f9f,stroke:#333
    style B fill:#f9f,stroke:#333
    style C fill:#f9f,stroke:#333
    style D fill:#f9f,stroke:#333
    style E fill:#f9f,stroke:#333
    style F fill:#f9f,stroke:#333
    style G fill:#f9f,stroke:#333
    style H fill:#f9f,stroke:#333
    style I fill:#f9f,stroke:#333

HITACHI RAC-M25EAG - OFF TIME setting - 4

text_image HITACHI ON 5 H A EHE ON ECO OFF POWERFUL OFF C ON

POWERFUL OPERATION

  • By pressing (POWERFUL) button during HEATING, DEHUMIDIFYING, COOLING operation, the air conditioner performs at maximum power.
  • During POWERFUL operation, cooler or warmer air will be blown out from indoor unit for COOLING or HEATING operation respectively.

HITACHI RAC-M25EAG - POWERFUL OPERATION - 1

text_image HITACHI 27°C ON ECO OFF POWERILL FR

START

Press the POWERFUL (POWERFUL) button during operation.

- " [icon] " is displayed on the LCD. POWERFUL operation ends in 20 minutes. Then the system automatically operates with the previous settings used before POWERFUL operation.

CANCEL

Press the POWERFUL (POWERFUL) button again.

- " [图标] " disappears from the LCD.

NOTE

- When ECO mode, or LEAVE HOME mode is selected, POWERFUL operation is cancelled.

  • During POWERFUL operation, capacity of the air conditioner will not increase
  • if the air conditioner is already running at maximum capacity.
  • just before defrost operation (when the air conditioner is running in HEATING operation).

• After auto restart, POWERFUL operation is cancelled and previous operation shall start.

■ Prevent the room temperature from falling too much by setting temperature at 10 deg automatically when no one is at home.

HITACHI RAC-M25EAG - NOTE - 1

text_image HITACHI 14 A 10°C ON

START

Hold down the HEATING Button for 3-5 seconds to start Leave Home operation.

• Room temperature is automatically set at 10 deg.
- "☀", "LH", "☐", "☐", is displayed on the LCD.

CANCEL

Press the (STOP) button. Change to other Operation Mode.

NOTE

- During Leave Home operation, fan speed and horizontal air deflector position cannot be changed.

■ Energy saving operation by changing set temperature and by limiting the maximum power consumption value.

HITACHI RAC-M25EAG - NOTE - 1

text_image By pressing the (ECO) button during Heating, Dehumidifying or Cooling operation, the air conditioner performs the "ECO" operation. START Press (ECO) button during operation. " " is displayed on the LCD. Energy saving operation will start by changing the set temperature higher or lower and saving operation power consumption. CANCEL Press (START/STOP) button. Press (ECO) button again. " " disappears from the LCD.

NOTE

  • In case the power consumption is already low, ECO operation will not reduce the power consumption.
  • By pressing (POWERFUL) button, ECO operation is cancelled.
    • After auto restart, ECO operation is cancelled and previous operation mode shall start.

HITACHI RAC-M25EAG - NOTE - 1

Adjust the airflow upward and downward.

According to operation, the horizontal air deflector is automatically set to the proper angle suitable for each operation. The deflector can be swings up and down and also set to the desired angle using the “(AUTO SWING)” button.

HITACHI RAC-M25EAG - NOTE - 2

text_image OFF ON P2
  • If the (AUTO SWING) " button is pressed once, the horizontal air deflector swings up and down. If the button is pressed again, the deflector stops in its current position. Several seconde (about 6 seconds) may be required before the defl ector starts to move.
  • When the operation is stopped, the horizontal air deflector moves and stops at the position where the air outlet closes.

HITACHI RAC-M25EAG - NOTE - 3

CAUTION

- In "Cooling" operation, do not keep the horizontal air deflector swinging for a long time. Some dew may form on the horizontal air deflector and some dew may drop from it.

HITACHI RAC-M25EAG - CAUTION - 1

Adjust the airflow to left and right.

Hold the vertical air deflector as shown on the right and adjust the airflow to left and right.

HITACHI RAC-M25EAG - CAUTION - 2

natural_image Illustration of hands installing or adjusting a wall-mounted air conditioner (no text or symbols visible)

HOW TO EXCHANGE THE BATTERIES IN THE REMOTE CONTROLLER

HITACHI RAC-M25EAG - HOW TO EXCHANGE THE BATTERIES IN THE REMOTE CONTROLLER - 1

Remove the cover as shown in the figure and take out the old batteries.

HITACHI RAC-M25EAG - HOW TO EXCHANGE THE BATTERIES IN THE REMOTE CONTROLLER - 2

HITACHI RAC-M25EAG - HOW TO EXCHANGE THE BATTERIES IN THE REMOTE CONTROLLER - 3

Install the new batteries.

The direction of the batteries should match the marks in the case.

HITACHI RAC-M25EAG - HOW TO EXCHANGE THE BATTERIES IN THE REMOTE CONTROLLER - 4

CAUTION

  1. Do not use new and old batteries, or different kinds of batteries together.
  2. Take out the batteries when you do not use the remote controller for 2 or 3 months.

Push and pull to the direction of arrow

HITACHI RAC-M25EAG - CAUTION - 1

natural_image Diagram of a remote control device with an open lid and internal components, showing a right-hand rule for change (no text or symbols present)

HITACHI RAC-M25EAG - CAUTION - 2

CAUTION

Cleaning and maintenance must be carried out only by qualified service personal. Before cleaning, stop operation and switch off the power supply.

1. AIR FILTER

Please clean the filter once about every two weeks. By doing so, the power rates are saved. In case the air filter is full of dust, the air flow will decrease and the cooling capacity will be reduced. Further, noise may occur. Be sure to clean the filter following the procedure below.

PROCEDURE

HITACHI RAC-M25EAG - PROCEDURE - 1

Open the front panel carefully and remove the filter.

HITACHI RAC-M25EAG - PROCEDURE - 2

natural_image Technical line drawing of a cylindrical mechanical component with internal grid structure (no text or symbols)

HITACHI RAC-M25EAG - PROCEDURE - 3

Vacuum dust from the air filter using vacuum cleaner. If there is too much dust, wash the filter with a detergent and rinse it thoroughly. After that, dry it in the shade.

HITACHI RAC-M25EAG - PROCEDURE - 4

natural_image Diagram of a hand inserting a component into an air conditioner unit (no text or symbols visible)

HITACHI RAC-M25EAG - PROCEDURE - 5

HITACHI RAC-M25EAG - PROCEDURE - 6

- Set the filter with "FRONT" mark facing front, and slot them into the original state.

- After attaching the filters, push the front panel at three arrow portions as shown in figure and close it.

HITACHI RAC-M25EAG - PROCEDURE - 7

natural_image Diagram of a car air conditioner unit with airflow arrows indicating airflow direction (no text or labels)

HITACHI RAC-M25EAG - PROCEDURE - 8

CAUTION

  • Do not wash with hot water at more than 40°C. The filter may shrink.
  • When washing it, shake off moisture completely and dry it in the shade; do not expose it directly to the sun. The filter may shrink.
  • Don't operate the unit without filter. Fault may occur if you continue.

2. CLEANING OF FRONT PANEL

  • Remove the front panel and wash with clean water. Wash it with a soft sponge. After using neutral detergent, wash thoroughly with clean water.
  • When front panel is not removed, wipe it with a soft dry cloth. Wipe the remote controller thoroughly with a soft dry cloth.
  • Wipe the water thoroughly. If water remains at indicators or signal receiver of indoor unit, it causes trouble.

Method of removing the front panel. Be sure to hold the front panel with both hands to detach and attach it.

HITACHI RAC-M25EAG - CLEANING OF FRONT PANEL - 1

natural_image Illustration showing a hand washing a pipe with water splashing, and a person cleaning a tube with a phone nearby (no text or symbols)

Removing the Front Panel Attaching the Front Panel
HITACHI RAC-M25EAG - CLEANING OF FRONT PANEL - 2

text_image Push Arm
  1. Push the end of the right-side arm outward to release the tab.
  2. Move the left-side arm outward to release the left tab, and then pull the panel towards you.

HITACHI RAC-M25EAG - CLEANING OF FRONT PANEL - 3

text_image Arm
  1. Insert the shaft of the left arm along the step on the unit into the hole.
  2. Securely insert the shaft of the right arm along the step on the unit into the hole.
  3. Make sure that the front panel is securely attached, and then close the front panel.

CAUTION

  • Do not splash or direct water to the body of the unit when cleaning it as this may cause short circuit.
  • Never use hot water (above 40°C), benzine, gasoline, acid, thinner or a brush, because they will damage the plastic surface and the coating.

HITACHI RAC-M25EAG - CAUTION - 1

text_image BENIN ACID THN NER

CAPABILITIES

Heating Capability

  • This room air conditioner utilizes a heat pump system that absorbs exterior heat and brings it into a room to be heated. As the ambient temperature gets lower, heating capability will also lower. In such a situation, the inverter work to increase compressor rpm to keep the unit's heating capability from decreasing. If the unit's heating performance is still unsatisfactory, other heating appliances should be used to augment this unit's performance.
  • The air conditioner is designed to heat an entire room so that it may take some time before you feel warm. Timer operation is recommended for effective preheating ahead of the desired time.
    Do not use a stove or any other high temperature devices in proximity to the indoor unit.

Cooling and Dehumidifying Capabilities

- If the heat present in a room exceeds the unit's cooling capacity (for example, if there are many people in the room or other heating appliances are used), the preset room temperature may not be reached.

CAUTION

HITACHI RAC-M25EAG - CAUTION - 1
PROHIBITION

REGULAR INSPECTION

PLEASE CHECK THE FOLLOWING POINTS EVERY EITHER HALF YEARLY OR YEARLY. CONTACT YOUR SALES AGENT SHOULD YOU NEED ANY HELP.

1HITACHI RAC-M25EAG - REGULAR INSPECTION - 1HITACHI RAC-M25EAG - REGULAR INSPECTION - 2Check to see if the unit's earth line has been connected correctly.If the earth line is disconnected or faulty, unit failure or electric shock hazard may result.
2HITACHI RAC-M25EAG - REGULAR INSPECTION - 3HITACHI RAC-M25EAG - REGULAR INSPECTION - 4Check to see if the mounting frame has rusted excessively or if the outdoor unit has tilted or become unstable.It could collapse or fall, causing injury.

AFTER SALES SERVICE AND WARRANTY

WHEN ASKING FOR SERVICE, CHECK THE FOLLOWING POINTS.

CONDITION CHECK THE FOLLOWING POINTS
HITACHI RAC-M25EAG - AFTER SALES SERVICE AND WARRANTY - 1(Remote controller display is dim or blank.)Do the batteries need replacement?Is the polarity of the inserted batteries correct?
HITACHI RAC-M25EAG - AFTER SALES SERVICE AND WARRANTY - 2Is the fuse all right?Is the voltage extremely high or low?Is the circuit breaker “ON”?Is the power plug inserted?Do you have any power cut?
HITACHI RAC-M25EAG - AFTER SALES SERVICE AND WARRANTY - 3Is the air filter blocked with dust?Is the set temperature suitable?Have horizontal air deflectors been adjusted to their correct positions according to the operation mode selected?Are the air inlets or air outlets of indoor and outdoor units blocked?Is the fan speed “LOW”or “SILENT”?

■ The following phenomena do not indicate unit failure.

During heating, the operation indicator blinks and air blow stops
The unit is preparing to blow warm air. Please wait.
The outdoor unit is defrosting. Please wait.
Hissing or fizzy soundsRefrigerant flow noise in the pipe or valve sound generated when flow rate is adjusted.
Squeaking noiseNoise generated when the unit expands or contracts due to temperature changes.
Rustling noiseNoise generated with the indoor unit fan's rpm changing such as operation start times.
Clicking noiseNoise of the motorized valve when the unit is switched on.
Perking noiseNoise of the ventilation fan sucking in air present in the drain hose and blowing out dehumidifying water that had accumulated in the condensed water collector. For details, consult your sales agent.
Changing operation noiseOperation noise changes due to power variations according to room temperature changes.
Mist emissionMist is generated as the air within the room is suddenly cooled by conditioned air.
Steam emitted from the outdoor unitWater generated during defrosting operation evaporates and steam is emitted.
OdorsCaused as the smells and particles of smoke, food, cosmetics, etc. present in room air become attached the unit and blown off into the room again.
The outdoor unit continues to operate even if operation is stopped.Defrosting is underway (as the heating operation is stopped, the microcomputer checks frost accumulated in the outdoor unit and instructs the unit to perform automatic defrosting if necessary).
The OPERATION lamp is blinking.Shows preheating or defrosting operation is underway.As the protective circuit or preheat sensor operates when unit operation is stopped during preheating and then restarted, or when operation mode is switched from cooling to heating, the lamp continues to blink.
Does not reach the temperature settingActual room temperature may deviate slightly from the remote controller's temperature setting depending on the number of people in the room, indoor or outdoor conditions.

- If the unit still fails to operate normally after performing the above inspections, turn the circuit breaker off and contact your sales agent immediately.

Contact your sales agent immediately if the following phenomena should occur:

  • The circuit breaker switches off or the fuse blows frequently.
    • The switch operation is not stable.
    • Foreign matter or water accidentally enters the unit interior.
  • The power cord gets excessively hot or its insulation is torn or stripped.
    • TIMER lamp on the indoor unit display blinks.

( As the nature of the failure can be identified by the blinking cycle, check the blinking cycle before turning off the circuit breaker. )

HITACHI RAC-M25EAG - Contact your sales agent immediately if the following phenomena should occur: - 1

HITACHI RAC-M25EAG - Contact your sales agent immediately if the following phenomena should occur: - 2

natural_image Cartoon illustration of a smiling man in a suit pointing upward with both hands (no text or symbols)

Notes

- In quiet operation or stopping the running, the following phenomena may occasionally occur, but they are not abnormal for the operation.

(1) Slight flowing noise of refrigerant in the refrigerating cycle.
(2) Slight rubbing noise from the fan casing which is cooled and then gradually warmed as operation stops.

- The odor will possibly be emitted from the room air conditioner because the various odor, emitted by smoke, foodstuffs, cosmetics and so on, sticks to it. So please clean the air filter and the evaporator regularly to reduce the odor.

- Please contact your sales agent immediately if the air conditioner still fails to operate normally after the above inspections. Inform your agent of the model of your unit, production number, date of installation. Please also inform him regarding the fault.

Please note:

On switching on the equipment, particularly when the room light is dimmed, a slight brightness fluctuation may occur. This is of no consequence.

The conditions of the local Power Supply Companies are to be observed.

HITACHI

RAS-L10EAG/RAC-L10EAG

RAS-L14EAG/RAC-L14EAG

RAS-X10EAG/RAC-X10EAG

RAS-X14EAG/RAC-X14EAG

RAS-X18EAG/RAC-X18EAG

HITACHI RAC-M25EAG - HITACHI - 1

natural_image Line drawing of a Siemens HVAC air conditioner unit (no text or symbols)

RAC-M25EAG

RAC-M35EAG

RAC-L10EAG

RAC-L14EAG

RAC-X10EAG

RAC-X14EAG

HITACHI RAC-M25EAG - HITACHI - 2

natural_image Line drawing of a Hitachi air conditioner unit with fan and ventilation slots (no text or symbols on the device itself)

RAC-M50EAG

RAC-X18EAG

natural_image Line drawing of a single air conditioner unit (no text or symbols)

RAS-M25EAG

RAS-M35EAG

RAS-M50EAG

RAS-L10EAG

RAS-L14EAG

RAS-X10EAG

RAS-X14EAG

RAS-X18EAG

HITACHI RAC-M25EAG - HITACHI - 3

natural_image Technical line drawing of a cylindrical air conditioner unit with internal panel and ventilation slots (no text or symbols)

HITACHI RAC-M25EAG - HITACHI - 4

Φίλτρο αέρα

natural_image Illustration of hands installing or adjusting a wall-mounted air conditioner (no text or symbols visible)
natural_image Diagram of a device's internal components being assembled, showing a housing and a separate casing with an arrow indicating rotation (no text or symbols present)

HITACHI RAC-M25EAG - Φίλτρο αέρα - 1

ΠΡΟΣΟΧΗ

natural_image Technical line drawing of a cylindrical mechanical component with internal grid structure (no text or symbols)

HITACHI RAC-M25EAG - ΠΡΟΣΟΧΗ - 1

natural_image Line drawing of a hand opening a cylindrical air conditioner cover (no text or symbols)

HITACHI RAC-M25EAG - ΠΡΟΣΟΧΗ - 2

HITACHI RAC-M25EAG - ΠΡΟΣΟΧΗ - 3

natural_image Diagram of a car air conditioner unit with airflow arrows indicating airflow direction (no text or labels)

HITACHI RAC-M25EAG - ΠΡΟΣΟΧΗ - 4

ΠΡΟΣΟΧΗ

natural_image Illustration showing two scenes: a hand washing clothes from a surface and a person cleaning a wall with a smartphone nearby (no text or symbols)
natural_image Illustration of a smiling man in a suit pointing upward with both hands (no text or symbols)

Σημειώσεις

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Product information

Brand : HITACHI

Model : RAC-M25EAG

Category : Air-conditioner