HITACHI 65MP3199 Split Unit Inverter Air Conditioner User Manual

HITACHI 65MP3199 Split Unit Inverter Air Conditioner

Product Information

Specifications:

• Brand: Hitachi
• Product Type: Split Unit Inverter Air Conditioner
• Models: Indoor Unit – 4-way Cassette (RCI), Ducted Above Ceiling (RPI), Floor Type (RPS), (RAC); Outdoor Unit – 65MP3199
• Controller: Wired Remote Controller (optional), Wireless Remote Controller (optional)

Product Usage Instructions

Introduction:
The Hitachi Split Unit Inverter Air Conditioner is designed for general use. It is important to follow the installation and usage guidelines provided in the manual to ensure optimal performance and safety.

Safety Precautions:
Before operating the unit, carefully read the Safety Precautions section to understand correct usage. Pay attention to warning and caution signs to avoid injuries and hazards. Incorrect installation can lead to serious consequences.

Precautions During Installation & Electrical Work:
It is recommended to have your unit installed by a dealer or qualified technician to prevent water leakage, electric shock, fire, or unit fall. Refrigerant leakage in enclosed areas requires emergency ventilation to prevent oxygen insufficiency. Hire a qualified electrician for electrical work to avoid electric shock or fire risks.

FAQ:

• Q: Can I install the air conditioner by myself?
  A: It is advised to have the unit installed by a dealer or qualified technician to prevent potential hazards such as water leakage, electric shock, and fire.

• Q: What should I do in case of refrigerant leakage?
  A: In case of refrigerant leakage, ensure emergency ventilation in small enclosed areas to prevent oxygen insufficiency. Contact your dealer immediately for assistance.

Thank you for purchasing Hitachi air conditioners.
Before installing and using, please read this manual and the installation manual carefully and keep them properly.

Introduction

• The air conditioning products for general use.
• Do not install the indoor unit, outdoor unit, controller and cable at such places as;
  • Where there is oil vapor and the oil is dispersed.
  • Where the hot springs are near (in a sulfuric environment).
  • Where generation, flowing, staying or leaking of flammable gas is detected.
  • Environment with high salt contents, such as coastal areas.
  • An acid or alkaline environment.
• Do not use for storage of foods, animals and plants, precision machinery, and artworks.
• Do not install near in the medical instruments generating electromagnetic waves, it may caused malfunction of the air-conditioner. When installing the air-conditioner, do not point the emitting surface of electromagnetic waves toward the electrical control panel, remote controller, and remote controller cable of the air-conditioner.
• To avoid interference from electromagnetic waves in the air, keep machinery generating electromagnetic waves, such as radios, at least three meters away from the air-conditioner.

Signs and Meanings

Safety Precaution

• 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”. As incorrect installation may cause injuries and hazards, precautions during installation are listed in the “ !△ Warning” column. In the “ !△ Caution” column, however, items that may cause hazards and danger are listed based on their situations. Regardless of their severity, please pay attention to items listed in either column and follow relevant instructions.
• After reading this manual, please keep it properly in places that can be reached easily.

PRECAUTIONS DURING INSTALLATION & ELECTRICAL WORK 

• Please ask your dealer or a qualified technician for the installation of your unit. Water leakage, electric shock, fire, or unit fall may occur if you install the unit by yourself.
• Pay attention to refrigerant leakage for installation in small enclosed areas. Emergency ventilation is required when refrigerant leakage occurs. High refrigerant intensity may cause oxygen insufficiency. Contact your dealer for details.
• Please hire a qualified electrician for the electrical work. Electric shock or fire may occur if you install the unit by yourself.
• There is risk of electric shock when earth is loosened. Contact your dealer immediately to earth the unit.
• Please install an earth leakage circuit breaker (ELBS) to prevent electric shock or fire.

PRECAUTIONS DURING OPERATION

• Do not attempt to operate the unit with wet hands; this could cause fatal accident.
• Do not insert a finger, a rod or other objects into the air outlet or inlet. As the fan is rotating at a high speed, it will cause injury.
• Do not use combustibles in a room where the unit is operating. Flammable sprays such as spray paint and volatile oil (including engine oil) may cause fire.
• Do not direct cool air from the air-conditioner to burning appliances to prevent incomplete combustion.
• Avoid an extended period of direct airflow to your body, it is bad for your health.
• Although this air-conditioner uses non-flammable, non-toxic, and odorless safety refrigerant (HFC), toxic gas may form after contact with a heat source in a refrigerant leakage. Refrigerant will then cover the ground due to its heavier mass relative to air to cause oxygen insufficiency.
• When there is a refrigerant leakage, direct cool air from the air-conditioner to turn off all fire sources (e.g. stove, etc.). Remove coolant on the ground, open all doors and windows, and contact your dealer.
• If the safety device does not stop or does not work, immediately shut down the unit and disconnect it from the socket. Contact your dealer.
• When abnormal situation arise (like burning smell), immediately shut down the unit and disconnect it from the socket. Contact your dealer.

PRECAUTIONS DURING OPERATION

• When operating the unit with burning appliances, regularly ventilate the room to avoid oxygen insufficiency.
• Warning Do not place plants directly under the airflow, as it is bad for them.
• Warning Do not disconnect the power supply of the indoor unit during summer. Water condensed inside will not be drain but spilt from the container to wet the ceiling or floor.

PRECAUTIONS DURING SHIFTING OR MAINTENANCE

• Please contact your dealer or a qualified technician for maintenance. Improper self-maintenance may cause electric shock or fire.
• Warning Please contact dealer or a qualified technician if you need to remove and reinstall the unit. Electric shock or fire may occur if you remove and reinstall the unit by yourself improperly.

OTHER PRECAUTIONS

• When there is a fire, turn off the main switch immediately to prevent electric shock.
• Turn off the main switch each time before maintenance and repair to prevent electric shock.
• Do not put water containers (like a vase) on the indoor unit to avoid water from dripping into the unit. Dripping water will damage the insulator inside the unit and cause electric shock.
• Do not touch the interior of the unit where protective devices and mainboards are installed to prevent accidents due to setting change.
• Do not operate the unit when the cover and piping of the outdoor unit are disassembled to prevent electric shock from accidental contact with the electrical parts.
• Do not wash the air-conditioner with water to prevent electric shock.
• Do not modify the product or its electrical wiring to prevent accidents.
• Refrigerant inside the air-conditioner is stored in a high-pressure state. Except for qualified technicians, do not loosen piping to prevent accidents.
• Make sure that the outdoor unit mounting frame is secure before maintenance to prevent falling off which may cause injury.
• Do not leave water or cleaning agent inside the indoor unit after maintenance and repair to prevent an electrical short circuit, electric shock, or fire.
• Do not leave water in the electrical parts and connectors after maintenance and repair to prevent an electrical short circuit, electric shock, or fire.
• Do not climb on the outdoor unit or put objects on it to prevent fall or overturning, which may cause injury.
• Please hold the fan grill and filter securely during installation and disassembly to prevent fall from causing injury.

Best Way of Use

Use of Range
Please use the air-conditioner within the range below to ensure the optimal performance of air-conditioning.

DB: Dry-bulb temperature / WB: Wet-bulb temperature

Note: When operating out of these ranges, the product may stop due to the protective device or water may leak from the indoor unit due to condensation.

Best Way of Use

Caution

• Connect the air-conditioner to the power source 12 hours before use during summer for the oil heater to preheat the compressor for protection.
• Disconnect the air-conditioner from the power source after summer to save energy.

Cautions for Use

1. Flow direction
   Adjust the air louver if you do not feel cool enough. (Note: With the air louver facing down for a long time, water will condense on the air louver and drip occasionally.)

2. Fan speed
   “MED” speed is used in general, and “HIGH” speed can cool a broader range.

3. Temperature
   The recommended temperature is 27-29ºC. Lower the temperature if not cool enough.

Names of Each Part and Safety Precautions

Outdoor Unit

• Connect the air-conditioner to the power source 12 hours before use during summer for the oil heater to preheat the compressor for protection.
• Disconnect the air-conditioner from the power source after summer to save energy.
• Safety instructions are indicated on respective units for customers to use the air-conditioner correctly and safely. To ensure safety in use and during inspection, please follow all safety instructions.

Wired Remote Controller (optional)
Display (Descriptions in this manual may differ from the actual display on the remote control)

Operation (Buttons behind the cover)

SCAN ME
Scan this QR code with your mobile device to see further instructions on how to maximize the functions of your air conditioner and for other related information.

Wireless Remote Controller (optional)
Display (Descriptions in this manual may differ from the actual display on the remote control)

Automatic Operation

To protect the indoor unit and to ensure a comfortable feeling, the following functions are operated automatically.

3-minute Shutdown Protection| To protect the compressor in the outdoor unit, the air-conditioner cannot operate for at least three minutes after shutdown. Users will need to wait for three minutes to restart the air- conditioner.
---|---
3-minute Operation Protection| To ensure the compressor runs for at least three minutes, even if the temperature switch is turned off, the compressor will not stop within the next three minutes. After operating for three minutes, however, users can shut down the compressor from the remote control.
A/C Operation| Defrost| The compressor will stop when the temperature of the heat exchange in the indoor unit is extremely low. The fan will run continuously to prevent frost on the heat exchange.
Oil Reflux Operation| When the air-conditioner is running and the indoor unit is idle over two hours, the unit will run automatically after some time to prevent cooling oil from staying in the idle indoor unit.

Maintenance and Check

Please refer to p. 2 for warnings and cautions during maintenance and repairs.

Routine Maintenance

• Filter Clearning
  When the FILTER sign appears, remove the filter and wash it

1. Take out the Filter  
2. Push the slide buttons on the inlet grill in the direction shown below to release the grill.
3. Hold the grill bottom, lift the filter to release it from the plug, and remove the filter.

  *  **Ducted Above Ceiling (RPI)  (venues using inlet grill with filter)**  

Please remove the filter installed behind the inlet grill. Pull at the middle of the grill to remove the filter.

  *  **Floor Type**
    1. Remove the inlet grill (left photo).
    2. Pull and lift to remove the filter (right photo).![HITACHI-65MP3199-Split-Unit-Inverter-Air-Conditioner- \(17\)](https://manuals.plus/wp-content/uploads/2024/08/HITACHI-65MP3199-Split-Unit-Inverter-Air-Conditioner-17.png)

2. Filter Cleaning

   • Clean the filter biweekly to save energy.
   • Clean the filter with a vacuum cleaner or wash with water and mild detergent.
   • Dry the filter in a cool place afterward.

3. Filter Installation
   After cleaning/washing the filter, dry it before installing it back in position and secure it with all fixers.

4. Grill Restoration
   Note Before closing the grill, make sure the filter is installed in position. (Absence of the filter may cause the machine to damage).

5. Press the RESET button ( )
   After turning on the unit, press the RESET button and the FILTER sign (11 filter cleaning) will disappear. Then, re-calculate the next cleaning time.

Remark

• Do not dry the filter with fire, hairdryers, or heater to prevent deformation.
• Do not wash the filter in hot water over 50ºC to prevent deformation.

Grill and Cover Maintenance
Wipe with a dampened soft cloth.

Remark

• Wipe the unit surface (all kinds of covers) with a soft cloth dampened with mild detergent. Do not use volatile thinners or surfactants. They will cause plastic deformation and color change.
• During the typhoon season, check if the outdoor unit is securely fastened and the cover screws are secured to prevent strong wind from blowing off covers that may cause injury.

Maintenance Before and After Summer

• Season Starts
  Remove all obstacles in front of the air inlet and outlet of both the indoor and outdoor units. Check if filters are clogged.

• Season Ends
  Clean the filter and grills of the indoor unit.

Check
Please perform a periodic check every six months to one year or before or after summer to confirm the following items. If you are not sure, please contact the Hitachi service center or your dealer.

1. Earth
   Check if the earth wire is loosened or broken.

2. Mounting Frame
   Check if the mounting frame is rusted or if the outdoor unit is unstable.

3. Check and Repair
   Both the indoor and outdoor units will be contaminated after long-term of use which can reduce their performance.

   • Based on the condition of use, odor may be emitted. The drain may be clogged by impurities or dust to stop condensate from draining. Therefore, regular maintenance, checks and repairs (paid service) are also important.
   • Please contact the Hitachi service station or your dealer for the exact fees for checks and repairs of indoor and outdoor units.

Remark

• Use genuine filters only to ensure unit performance and life.
• Do not operate the unit without filters to prevent dust and dirt from entering and damaging the unit.
• Check and clean the radiator to prevent dust and dirt from reducing the cooling effect.

Troubles

None of the following troubles is a product fault

microcomputer reacts to the EMI to protect the air-conditioner. Please re- start the air-conditioner according to the procedures.
Ÿ After power outage| Ÿ Please restart the air-conditioner according to the operating procedure.

Ÿ The unit will operate automatically if the power outage lasts less than two seconds.

Vapor| Ÿ When the air-conditioner is used in the restaurant or kitchen.| Ÿ Grease deposited on the radiator of the heat exchange reduces heat exchange performance and gives rise to vapor.
Ÿ Install a pre-filter.
Ÿ Operate in the DRY mode.| Ÿ The outlet temperature is too low. Change operation mode.
Ÿ Operate in the COOL mode in a humid environment.
Odor| Ÿ Odor flows out from the indoor unit.| Ÿ Smoke or odor in the interior adhered to the indoor unit. Clean the filter and the grill and ventilate thoroughly.
Noise| Ÿ Clicking sound when the unit starts and stops.| Ÿ The friction sound of plastic parts because of temperature change.
Ÿ Flowing water sounds when the unit is in operation.| Ÿ It is caused by either the refrigerant or the condensate. The sound is distinct when the unit starts, or the compressor stops (about three minutes).
Ÿ Cracking sound when the unit starts and stops.| Ÿ Melting sound of water or frost on the surface of the heat exchange in the indoor unit.
Frost| Ÿ Condensation at the outlet grill or cover.| Ÿ This happens when the unit operates for a long time at high humidity (R.H. >80%).
Trouble| Cause
---|---
Outdoor Unit| The outdoor unit did not stop immediately after the shutdown.| When pressing the RUN/STOP button on the remote control.| To extend the lifespan of the product, the outdoor unit will stop in the optimal condition.
The compressor does not run.| The compressor stops for three minutes during operation.| To prevent the electronic value of the indoor unit from expanding after running continuously for eighteen hours.
To protect the compressor, it may be idle for six minutes.

Check before Calling for Service

switch to ON.
Ÿ Please check if the breaker is tripped or the fuse is blown.| Ÿ Reset the breaker to ON or replace a new fuse. Contact your dealer if the situation persists.
Stop suddenly during operation| Ÿ Check if the air inlet or outlet of the outdoor unit is blocked by paper, plastic bags, or cloths.| Ÿ Remove objects blocking the air inlet or outlet.
Not cool enough| Ÿ Check if the correct mode is selected.| Ÿ Switch to COOL if it is in the FAN mode.
Ÿ Check if temperature settings are appropriate.| Ÿ Press the DOWN arrow button ( ) to adjust temperature.
Ÿ Check if the flow direction is appropriate.| Ÿ Adjust flow direction.
Ÿ Check if the filter is clogged.| Ÿ Wash the filter.
Ÿ Check if doors and windows are properly close.| Ÿ Shut all doors and windows.
Ÿ Check if the air inlet or outlet of the indoor or outdoor unit is blocked.| Ÿ Remove obstacles.

Immediate Service

• If the situation persists after the above checks, please stop the air conditioner, and contact your dealer.

Please inform your dealer of the following information:

Fuse, breaker, ELCB and other safety devices are activated with incomplete operation.| Disconnect the unit from the power source.
Air-conditioner dripping| Stop operation.

Warning Should abnormal situation arise (like burning smell), immediately shut down the unit and disconnect it from the power source to prevent electric shock and fire. Then, contact your dealer.

Error Code and Meaning

of the indoor and outdoor units.
02| Activation of outdoor unit protective device.| 35| Setup error of indoor unit number.
03| Noise between the indoor and outdoor units.| 38| An anomaly found in the protective circuit of the outdoor unit.
04| Noise from the inverter.| 41| Cooling overload.
05| Phase abnormality.| 42| Heating overload.
06| Under voltage or over voltage of the outdoor unit.| 47| Activation of protection against low pressure drop.
07| Abnormal temperature drop of the discharged coolant.| 48| Activation of overload protection.
08| Reading of the compressor thermometer is too high.| 51| Abnormal current of the inverter.
11| Inlet temperature sensor anomaly (indoor unit).| 53| Activation of power module protection.
12| Outlet temperature sensor anomaly (indoor unit).| 54| Inverter radiator sensor anomaly, activation of protection.
13| Anti-frost temperature sensor anomaly (indoor unit).| 55| Inverter anomaly.
14| Heat exchange piping temperature sensor anomaly (indoor unit).| 57| Activation of fan controller protective device (outdoor unit).
19| Activation of Fan motor protection (indoor unit).| 59| Inverter radiator sensor anomaly.
20| Anti-frost temperature sensor anomaly (outdoor unit).| b1| Coolant system setting error.
22| Outlet temperature sensor anomaly (outdoor unit).| EE| Compressor protection error.
24| Piping temperature sensor anomaly.|  |

Warranty

Warranty and After-Sales Service

• Warranty
  There is a warranty card on the unit. Please show the warranty card to the service personnel when there is a fault during the warranty period. Customers can enjoy free repair or discount for materials based on the warranty terms.

• After Sales Service
  When an abnormality in the product occurs, please check according to the instructions in this manual. If failed to improve, contact your dealer immediately.

Emergency Treatment
Shut down the air-conditioner and turn off the breaker for the air-conditioner immediately under any of the following situations: overheat, surface insulation damage, or melting of the power cable; the fuse is blown or the breaker trips; or the unit does not respond properly to run/stop commands. Do not attempt to replace parts by yourself. Contact the local dealer for service.

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