HITACHI RAK-XJ18QHAE Room Air Conditioner User Manual

Access the full version of the User Operation Manual by scanning the code.

More languages available.https://docs.hitachiaircon.com/RAK-XJ-Q-R-HAE

SAFETY PRECAUTION

• 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.)
  Make sure to connect earth line.| This sign in the figure indicates prohibition.
  ---|---
  Indicates the instructions that must be followed.|
  WARNING| This symbol shows that this equipment uses a flammable refrigerant.

If the refrigerant is leaked, together with an external ignition source, there is a possibility of ignition.

CAUTION| This symbol shows that the Operation Instructions should be read carefully.
CAUTION| This symbol shows that a service personnel should be handling this equipment with reference to the Installation Manual.
CAUTION| This symbol shows that there is information included in the Operation Manual and/or Installation Manual.

• Please keep this manual after reading.

PRECAUTIONS DURING INSTALLATION

WARNING| • Do not reconstruct the unit.
Water leakage, fault, short circuit or fire may occur if you reconstruct the unit by yourself.
---|---
• 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.
• 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-240V power source is used. The use of other power sources may cause electrical components to overheat and lead to fire.

PRECAUTIONS DURING SHIFTING OR MAINTENANCE

WARNING| • Should abnormal situation arise (livke burning smell), please stop operating the unit and turn off the circuit breaker. Contact your agent. Fault, short circuit or “OFF”fire may occur if you continue to operate the unit under abnormal situation.
---|---
• Please contact your agent for maintenance. Improper self maintenance may cause electric shock and fire.
• 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.

PRECAUTIONS DURING OPERATION

• 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.
• 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. As a spray can’s internal pressure can be increased by hot air, a rupture may result.
CAUTION| • This room air conditioner is only for residential usage.
Do not use for preservation of foods, animals, plants, precision machines, art, medicine or such.
• The product shall be operated under the manufacturer specif ication and not for any other intended use.
 •  Do not attempt to operate the unit with wet hands, this could cause fatal accident.
• When operating the unit with burning equipment, regularly ventilate the room to avoid oxygen insufficiency.
• Do 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.
• Please ensure that outdoor mounting frame is always stable, firm and without defect. If not, the outdoor unit may collapse and cause danger.
• Do 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 or animals directly under the airflow as it is bad for the plants or animals.
• Be 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 operated for a long period.
•  Do 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.
• If 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 equipment 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.
• Do not spray pesticides, flammable sprays, deodorants, antibacterial agents, etc. on indoor units. because it may cause fire, deformation, refrigerant leakage,  or water leakage.
• Do not 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.
• 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.

Names and Functions of Remote Controller

• This controls the operation of the indoor unit. The range of control is about 7 meters. If indoor lighting is controlled electronically, the range of control may be shorter. This unit can be fixed on a wall using the fixture provided. Before fixing it, make sure the indoor unit can be controlled from the remote controller.
• Handle the remote controller with care. Dropping it or getting it wet may compromise its signal transmission capability.
• After new batteries are inserted into the remote controller, the unit will initially require approximately 3~4 seconds to respond to commands and operate.
• When remote controller is not in use for about 3 minutes during OFF condition, indicated by on the (display, the LCD will turn off.
• During clock setting, the LCD will turn off about 3 minutes later if the remote controller is not in use.
• When pressing any button, the LCD will turn on.
• The LCD will not turn off during TIMER setting.

Backlight function

• Backlight is to see the LCD readings in the dark.
• On Pressing any key, the LCD panel lights up for a period of approx. 10 seconds. After approx. 10 seconds the light automatically switches off.
• The function is independent of all other functions of the air conditioner.
• The backlight color is white.

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.

Operate Air Conditioner with Smartphone

Built-in airCloud Go module

airCloud Go is a cloud-based solution for remotely controlling your Hitachi air conditioning system via smart phone. You can operate the air conditioner from outside the home with your smartphone and check the operating status.

What You Should Confirm When Using the Service

Internet environment at home

• In order to use the service, FTTH (optical fiber) ADSL / CATV (cable TV) and other Internet services, a broadband line capable of communication is required. Not available on dial-up lines.
• For details on Internet connection, contact your provider or carrier. Please check your contract.
• Internet communication charges are the responsibility of the customer.

Smartphone

• iOS (iPhone, etc.) 13.0 / Android 9.0 or later (as of October 2023).
• To confirm the OS version, check on your smart phone, or contact your smart phone manufacturer.
• Make sure that you can connect to the router with wireless LAN.
• Tablets are not guaranteed to work.

Wireless LAN router (Hereinafter router)

• Please use a router that supports the 2.4GHz band.
• For security, be sure to use a router that can set the encryption method WPA2 or WPA (either TKIP or AES). We recommend the WPA2 (AES) encryption method. For the setting procedure, refer to the instruction manual of the router.
• Routers that support only WEP cannot be used.
• Mobile routers are not guaranteed to work.

Initial Settings

Please install the airCloud Go App on your smartphone

1. Search for the airCloud Go App
   • For Android models: Open Google Play.
   Android is a trademark and registered trademark of Google LLC.
   • For iOS models (iPhone): Open the App Store.
   iPhone is a trademark and registered trademark of Apple Inc.

2. Please install according to the screen
   • In order to use the dedicated App, you need to read and agree to the Terms of Service.
   • The dedicated application is free of charge, but to download the application, additional communication fees may be charged based on the customer’s contract for Internet data.
   • The names and icons of the dedicated Apps are as of October 2023. It may be changed by updating the application.
   Notes:
   • The first registered user becomes group administrator by default and manage other users and also set access rights for other users.
   • When using with multiple users, the registered user should invite other users to register.

Notes on Wireless LAN

WARNING

• Do not enable remote features near those with a cardiac pacemaker or defibrillator.
  If it is too close, radio waves may affect the operation of pacemakers and other devices.

Use frequency band

In the frequency band used by this air conditioner, in addition to industrial, scientific and medical equipment such as microwave ovens, private radio stations for identification of mobile objects (radio stations that require a license) and special Low power radio stations (radio stations that do not require a license) and amateur radio stations (radio stations that require a license) are in operation.

1. Before using this air conditioner, make sure that local radio stations for identification of mobile objects, specified low-power radio stations and amateur radio stations are not operating nearby.
2. If any harmful radio interference occurs from the air conditioner to the mobile station identification radio station, immediately stop using the radio wave and contact the local Johnson Controls-Hitachi Air Conditioning (Hereinafter JCH) technical support team to consult about measures for avoidance.
3. In addition, if you have any problems such as harmful radio interference from the air conditioner to the specified low power radio station for identifying the moving object or amateur radio station. Please contact the local JCH technical support team.

How to use frequency

Equipment certification
This air conditioner has a built-in wireless device that has been approved for construction design based on the Radio Law, so a license for a wireless station is not required. However, the following acts are prohibited by the Radio Law.

• Disassemble / modify wireless device.
• Remove the main unit nameplate.
• Erase the indication on the nameplate of the main unit.

Security measures

• Since wireless LAN transmits and receives using radio waves, there is a risk of unauthorized access. Please take security measures for the wireless LAN router (hereinafter, router) to ensure data security. Please note that JCH do not take any responsibility if a problem occurs without implementing security measures.
• We recommend that you set a password (encryption key) for the router of at least 8 characters and no more than 63 characters. (Refer to the instruction manual of the router for the limitation of the number of characters.) When the router password (encryption key) is changed, please change the same password on the airCloud Go App also.

About firmware

• This air conditioner has the function of connecting to our server through the Internet and automatically updating its firmware to the latest version. During the update, wireless communication may be interrupted and communication may be interrupted or can be slow.
• Do not analyze or modify the firmware.

Usage restrictions

Please note the following restrictions on use.
JCH will not be liable for any failure to observe the restrictions or for any incidental damage resulting from the use or inability to use the air conditioner.

• Do not connect to wireless networks for which you do not have usage rights. Unauthorized wireless networks (SSID) that you do not have permission to use may be displayed during automatic search of the wireless network environment.
  SSID is a name to identify a specific network in wireless LAN. If this SSID matches on both devices, communication is possible.

• Do not use where magnetic fields, static electricity or radio interference may occur.
  If used near the following devices, communication may be interrupted or the speed may decrease.
  a. Microwave oven during cooking.
  b. Bluetooth compatible device.
  c. Other wireless LAN devices (wireless WEB cameras, PC devices, etc.) except the router (wireless LAN router) that communicates with this air conditioner.

• If there are metallic objects or walls made of steel or reinforced concrete between the unit and the router, the communication signal may be jammed, leading to loss of communication thus preventing the control of the unit by App.

• For technical support, please contact your installer or local distributor.
  Website link: www.hitachiaircon.com.

Information about Using Wireless LAN

• The air conditioner can be operated from a place that is not directly visible. Therefore, for example, a situation may occur where a person in the room turns ON while another person turns OFF from outside. Especially when infants, children, the elderly, the sick, or the physically handicapped are indoors, use it when a person who can manage it is nearby. In addition, before using, please understand the condition of the room before operating.
• Your smartphone and air conditioner communicate data via our server using the Internet. Therefore, due to the condition of the communication line of your mobile phone company or provider, the setting of your router, or the stop of service due to maintenance of the airCloud Go server, data communication may not be possible, and the system may not or delay operate.
• After connecting the air conditioner to the router, you can perform data communication. To use, you will incur the broadband internet charges and your smartphone network provider charges as per the customer contract.
• If the air conditioner is not operated for a long time or if the home internet network has been completely shut down, it is advisable to initialize the airCloud Go module and reconnect the same.
• Please do not inform other people about the SSID / KEY of this air conditioner.
• Johnson Controls Air Conditioning guarantees repair of this air conditioner under certain conditions. However, we do not guarantee that stored data is lost or damaged.
• This air conditioner stores network setting information. When disposing of this air conditioner, initialize the built-in airCloud Go module (Refer to Page 8).
• Customers are responsible for resolving any deficiencies in the Internet and wireless environment at home.
• If you operate the air conditioner using the App, some of the set functions may be canceled.

SSID & KEY Label Paste

SSID & KEY label details of Air conditioner’s builtin airCloud Go module is pasted here for your reference.
Please keep it safe for future requirements during pairing process and please write down the installation location (like living room, bedroom, etc.) on the label.
The AC type is “2” that is for models with a built-in airCloud Go module

About Software License

The software installed in this air conditioner is composed of multiple independent software modules, and each software module has the copyright of JCH and a third party.
This air conditioner also contains software modules developed or created by us, but these software and accompanying documents have proprietary rights and intellectual property rights of JCH.
These are protected by copyright law and other laws.

Initial Setting of App

To download the airCloud Go application, search for it in the App Store® 1 or Google Play 2.
Alternatively, you can scan the following code with your smartphone to directly access the application download page.
1 App Store® is a service mark of Apple Inc.
2 Google Play and the Google Play logo are trademarks of Google LLC.
NOTE : an internet connection is required to download, update, or use airCloud Go (userregistration, etc.).
Customers are responsible for internet communication costs.

https://docs.hitachiaircon.com/Apps-airCloud-Home

Registration on App

Please follow the airCloud Go App guidance to complete the registration on the App.

Air Conditioner Registration and Router Connection

To proceed, you must be logged into your airCloud Go App.
Make sure that the air conditioner is ready to be powered on, then follow in- app guidance to add the air conditioner. For step-by-step guidance, you can scan the following code with your smartphone.

https://docs.hitachiaircon.com/com/ranges/iot-apps-controllers/aircloud- home-app

Initialization of the Built-in airCloud Go Module

Reset the internal settings (restore the factory settings) by remote controller. Please note that the configuration will be cleared and pairing procedure will be required to do again to use the built-in airCloud Go module.

1. Press Mode key and ON Timer key simultaneously, pointing the remote controller towards the air conditioning unit.
2. Make sure Wi-Fi LED on Indoor unit flashes 4 times repeatedly for about 20 seconds (LED is turning off between 2 sequences of 20 seconds).
3.  Restart the unit (turn power OFF during 1 minute, then turn power ON again) and check that the Wi-Fi LED is blinking 3 times. If Wi-Fi LED is indeed flashing 3 times, pairing mode is well activated and factory settings have well been restored.

Status Indicator (LED Indicator may light up while the air conditioner is turned off)

detected.
•Air conditioner is not plugged in.
•Built-in airCloud Go module and the air conditioner is not connected.
LED ON| •The connection between the Built-in airCloud Go module and the router is completed.
•The operation can be conducted through smartphone.
LED flashes 3 times| Waiting to connect to the Wi-Fi router using AP mode.
LED flashes 4 times| Restoring factory setting procedure has started.
LED flashes 5 times| Communication error between air conditioner & Built-in airCloud Go module (Error detection time: approx 24 mins.)
LED flashes with 4sec ON/lsec OFF| Router connection error.
LED flashes with 4sec ON/3sec OFF| Cloud connection error. (Error detection time: approx 30 mins.)

Note:

• Please try to power OFF/ON your air conditioner from mains switch when an error occurs.
• “Wi-Fi” is a trademark or registered trademark of the “Wi-Fi Alliance”.

Information

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 willalso lower. In such a situation, the inverter work
  to increase compressor rpm to keep the unit’s
  CAUTION
  Do not use a stove or any other high temperature devices in proximity to the indoor unit.
  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.

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.

Refrigerant Information

• For the refrigerant charge information, please  refer to the outdoor unit installation manual or specification label.

Regular Inspection

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

| WARNING| Check 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.
---|---|---
| WARNING| Check 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.

need replacement?
• Is the polarity of the inserted batteries correct?
Remote controller display is blank or LCD display restarts on
pressing of any key and there is no response from air conditioner unit.
When it does not operate.| • Is 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?
When it does not cool well.
When it does not heat well.| • Is 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”?

FrostWash Operation

FrostWash Operation does not start| Is the total operation time of the air conditioner beyond default setting when the air-conditioner is operated for about 30 minutes and stopped?
---|---
The FrostWash be started that must to meet with the follow conditions.| | Indoor Frost Wash 3.0 auto operation| Outdoor Frost Wash auto operation
---|---|---
Accumulation time| Accumulated operating hours of the air conditioner have exceeded about 42 hours| Accumulated
power supply of the air conditioner have exceeded about 60 days
The room temperature| About 10-32t| About 5-25:C
The humidity in the
MOM| About 30-70%| It does not request
The outside temperature| About 1.43t| About S-25:C
Does not change to non -automatic “FrostWash”?
Does it happen after “time off”?
-Automatic “FrostWash” interval becomes longer.
Within 60 minutes after the end of “Frost Wash”, “FrostWash” is not operated for product protection.
Noise occurred during FrostWash operation| It is the sound that the internal machine is inflated and contracted by the temperature change and the fin of the heat exchanger is frozen and thawed.
(Clean Function Lamp) blinks| Repeat for 1 second on and 1 second off for 10 seconds.
Because “Frost Wash” can not work when operating the “Frost Wash” with remote controller.
•The air conditioner is operating.
•Outside air temperature, room temperature and room humidity are not suitable for “FrostWash”.
•It has not been over 60 minutes since the end of “Frost Wash”.
Repeat for 4 seconds on and 1 second off for 15 seconds.
Because FrostWash has not been done for a long time.
→ Operate the remote controller to operate “FrostWash”.

*Multi connection only available for manual “FrostWash”.
Mold Guard Function 2.0 Operation (For single inverter only)

During Mold Guard Function 2.0| (Clean Function Lamp) on the indoor unit lights up during Mold Guard Function 2.0 operation. If Mold Guard Function 2.0
operation stop at middle point, Clean Function Lamp indicator will turn off.
---|---
Mold Guard Function 2.0
operation does not start| If the air conditioner operation is stopped after heating operation, Mold Guard Function 2.0 will not operate.
If the air conditioner has operated in cooling and drying mode, including auto mode, for less than 10 minutes, the Mold Guard Function 2.0 operation will not start even if the air conditioner is in off mode.
If operation of the air conditioner is stop by OFF Timer, the Mold Guard Function 2.0 will not operate.
If ON Timer is set and on time is within about 2 hours, the Mold Guard Function 2.0 will not operate.
Notes| The horizontal deflector remain open.
Room temperature or humidity may rise.
Depending on situation, Mold Guard Function 2.0 will operate with Fan Mode.
When there would be the window near indoor unit, the water might condense on the window during Mold Guard Function 2.0. If necessary, to cancel Mold Guard Function 2.0. When after FrostWash operation, the water
inside the indoor unit evaporates, depending on the room conditions, may emitted as steam. But this is not a malfunction. If necessary, to cancel Mold Guard Function 2.0.

Mold Guard Operation
(For Multi model will operate as Auto Clean operation)

During Mold Guard|  (Clean Function Lamp) on the indoor unit lights up during Mold Guard operation.
If Mold Guard operation stop at middle point, Clean Function Lamp indicator will turn off.
---|---
Mold Guard operation does not start| If the air conditioner operation is stopped after heating operation, Mold Guard will not operate.
If the air conditioner has operated in cooling and drying mode, including auto mode, for less than 10 minutes, the Mold
Guard operation will not start even if the air conditioner is in off mode.
If operation of the air conditioner is stop by OFF Timer, the Mold Guard will not operate.
If ON Timer is set and on time is within about 2 hours, the Mold Guard will not operate.
Notes| The horizontal deflector remain open.
Room temperature or humidity may rise.
When there would be the window near indoor unit, the water might condense on the window during Mold Guard. If necessary, to cancel Mold Guard.
When after FrostWash operation, the water inside the indoor unit evaporates, depending on the room conditions, may emitted as steam. But this is not a malfunction. If necessary, to cancel Mold Guard.

• The following phenomena do not indicate unit failure.

During heating, the operation indicator blinks and air blow stops.| <Operation start>
The unit is preparing to blow warm air. Please wait.