Mitsubishi Heavy Industries Air Conditioner User Manual

Introduction

Thank you for choosing a Mitsubishi Heavy Industries air conditioner. This user manual provides essential information for safe and efficient operation. Please read it carefully before use and keep it for future reference.

Safety Precautions

[Warning] Indicates a potentially hazardous situation that, if not avoided, could result in death or serious injury.

[Caution] Indicates a potentially hazardous situation that, if not avoided, may result in minor or moderate injury or property damage.

• Always follow safety instructions to prevent accidents.
• Do not allow children to play with the unit or the remote control.
• Avoid prolonged exposure to cold airflow.
• Never insert objects into air outlets or vents.
• Ensure proper grounding of the unit.
• Do not use the unit near flammable gases or in environments with high oil content.
• Do not attempt to repair or modify the unit yourself; contact authorized service personnel.
• In case of unusual smells or sounds, turn off the unit and contact service.
• Proper disposal of batteries is required according to local regulations.
• The unit uses refrigerants R32 and R410A, which are greenhouse gases. Do not release them into the atmosphere.

Operation Modes

The air conditioner offers various operating modes:

• Cooling (COOL): For reducing room temperature.
• Heating (HEAT): For increasing room temperature.
• Fan (FAN): Circulates air without heating or cooling.
• Dry (DRY): Dehumidifies the air.
• Auto (AUTO): Automatically selects the operating mode (Cool, Heat, Fan) based on room temperature.
• High Power (HI): Provides maximum cooling or heating for 15 minutes for rapid temperature adjustment.
• Economy (ECO): Operates at reduced power consumption for energy saving, potentially adjusting settings based on detected room occupancy.
• Silent: Reduces operational noise from the outdoor unit.
• Sleep Timer: Gradually adjusts temperature for comfortable sleep and turns off the unit after a set time.
• ON Timer: Turns the unit on at a preset time.
• OFF Timer: Turns the unit off at a preset time.
• Weekly Timer: Allows programming of ON/OFF times for each day of the week, up to 4 programs per day.
• 3D Auto: Automatically adjusts airflow direction (vertical and horizontal) for optimal room coverage.
• Allergen Clear: Uses enzymes to remove allergens from the air filter.
• Self Clean: Dries the indoor unit to prevent mold and bacteria growth after cooling or dry operation.
• Preset: Stores preferred settings (mode, temperature, fan speed, airflow) for quick recall.

Remote Control

The remote control allows users to operate all functions of the air conditioner. Key components include:

• Display Screen: Shows current settings, mode, timer status, and error indicators.
• Operation Buttons:
• ON/OFF: Starts or stops the unit.
• MODE: Selects operating mode (Cool, Heat, Fan, Dry, Auto).
• TEMP (Up/Down): Adjusts the target temperature.
• FAN SPEED: Adjusts fan speed (Auto, Low, Medium, High, ULo).
• AIR FLOW (U/D, L/R): Adjusts vertical and horizontal airflow direction.
• HI/ECO: Selects High Power or Economy mode.
• SILENT: Activates silent operation.
• NIGHT SETBACK: Maintains a minimum temperature (approx. 10°C) during heating in cold weather to prevent excessive cooling.
• TIMER (ON, OFF, SLEEP, WEEKLY): Sets various timer functions.
• SET/CANCEL: Confirms settings or cancels timer functions.
• MENU: Accesses advanced settings like Self Clean, Auto Off, Preset, and Allergen Clear.
• ACL: Resets the remote control.
• Battery Compartment: Holds two AAA batteries.
• Remote Control Holder: For wall mounting.

[Information] The remote control requires line-of-sight to the indoor unit's sensor. Ensure no obstructions.

Maintenance

Regular cleaning of the air filters is recommended every two weeks for optimal performance and energy efficiency.

• Air Filter Cleaning: Remove filters, wash with mild detergent and lukewarm water (approx. 30°C), rinse, and dry completely before reinstalling.
• Allergen Filter: Clean with a vacuum cleaner. Replace if heavily soiled or after one year of use.
• Deodorant Filter: Can be washed with water and dried in the sun to restore its effectiveness.
• Unit Cleaning: Wipe the indoor unit with a soft, dry cloth or vacuum cleaner. For stubborn dirt, use a cloth dampened with lukewarm water.

[Caution] Do not use hot water (over 40°C), gasoline, thinner, or polishing powder, as these can damage the unit. Do not wash the front panel or air intake grille with water.

Troubleshooting

Before contacting service, check the following:

• Unit not operating: Check power supply, circuit breaker, and timer settings. Ensure the main power switch is on.
• Insufficient cooling/heating: Ensure filters are clean, doors/windows are closed, no direct sunlight, and temperature settings are appropriate. Check for obstructions around the unit's air inlets/outlets.
• Unusual noises: Refer to the manual for descriptions of normal operating sounds (e.g., refrigerant flow, expansion/contraction, compressor operation).
• Remote control issues: Check batteries, ensure clear line-of-sight, and try resetting the remote.
• Error Codes: The unit may display error codes indicated by blinking RUN/TIMER lights. Consult the manual for specific error code meanings (e.g., sensor errors, fan motor issues, refrigerant problems).

Contact Information

For service, support, or replacement parts, please contact:

• MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
  16-5 Konan 2-chome, Minato-ku, Tokyo, 108-8215, Japan
  http://www.mhi-mth.co.jp/en/
• MITSUBISHI HEAVY INDUSTRIES AIR-CONDITIONING EUROPE, LTD.
  7 Roundwood Avenue, Stockley Park, Uxbridge, Middlesex, UB11 1AX, United Kingdom
  Tel: +44-20-7025-2750
  Fax: +44-20-7025-2751
  http://www.mhiae.com/
• MITSUBISHI HEAVY INDUSTRIES AIR-CONDITIONERS AUSTRALIA, PTY. LTD.
  9C Commercial Road Kingsgrove NSW 2208 PO BOX 318 Kingsgrove NSW 1480
  Tel: +61-2-8571-7977
  Fax: +61-2-8571-7992
  https://www.mhiaa.com.au/

EU Declaration of Conformity

MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD. declares that the apparatus referred to in this declaration conforms with the following directives: Machinery 2006/42/EC and applied standards/regulations EN 378-2, EN 60335-1, EN 60335-2-40.

This declaration applies to the Split Type Air Conditioner, including indoor units (SRK Series: SRK20ZSX-W, SRK25ZSX-W, SRK35ZSX-W, SRK50ZSX-W, SRK60ZSX-W) and outdoor units (SRC Series: SRC20ZSX-W, SRC25ZSX-W, SRC35ZSX-W, SRC50ZSX-W, SRC60ZSX-W, SRC20ZSX-WA, SRC25ZSX-WA, SRC35ZSX-WA).

Authorised Representative in the EU: MITSUBISHI HEAVY INDUSTRIES AIR-CONDITIONING EUROPE, LTD.