Daikin Operation Manual

Introduction

Thank you for purchasing this Daikin air conditioner. Please read this operation manual carefully before using the unit. It provides guidance on proper usage and troubleshooting. After reading, keep the manual for future reference. For details on the remote controller's switches and displays, refer to its dedicated operation manual.

This manual primarily describes the indoor unit. Use it in conjunction with the outdoor unit's operation manual.

System Types

• Heat Pump Type: Provides cooling, heating, automatic, program dry, and fan operation modes.
• Cooling Only Type: Provides cooling, program dry, and fan operation modes.

Group Control or Two Remote Controller Systems

This system supports alternative control methods besides individual control:

• Group Control System: One remote controller manages up to 16 indoor units, all set identically.
• Two Remote Controller Control System: Two remote controllers can operate a single indoor unit (or a group of indoor units in group control). The unit operates individually.

Note: Consult your Daikin dealer for assistance with changing combinations or settings for these advanced control systems.

Names and Functions of Parts

Refer to the system diagram for part identification:

• a: Indoor unit
• b: Outdoor unit
• c: Remote controller
• d: Inlet air (to the indoor unit)
• e: Discharged air (from the indoor unit)
• f: Air outlet (of the indoor unit)
• g: Air flow flap (at the air outlet)
• h: Refrigerant piping and electrical connection wires
• i: Drain pipe (for condensate removal)
• j: Air inlet (to the outdoor unit)
• k: Ground wire (connecting the outdoor unit to earth for electrical shock prevention)

The built-in air filter removes dust and dirt.

Safety Considerations

Read this manual carefully before use to ensure proper operation and avoid malfunctions due to mishandling. This air conditioner is classified as "appliances not accessible to the general public".

WARNING: These indicate potential serious consequences, including death or severe injury, from incorrect handling.

CAUTION: These indicate potential injury or material damage from incorrect handling, possibly leading to serious consequences.

• Keep this manual accessible for all users.
• Avoid prolonged direct exposure to cold air, which can negatively affect health.
• If the unit emits a burning smell, immediately unplug the power cord and contact your dealer. Continued operation can lead to failure, electric shock, or fire.
• Do not attempt installation yourself; contact your dealer. Improper installation can cause water leakage, electric shock, or fire.
• Do not attempt unauthorized repairs or maintenance. This can lead to water leakage, electric shock, or fire.
• Never insert fingers, sticks, or other objects into the air inlet, outlet, or fan blades, as the high-speed fan can cause injury.
• For refrigerant leaks, consult your dealer.
• In small rooms, ensure adequate ventilation to prevent refrigerant concentration from reaching hazardous levels, which could cause oxygen deficiency.
• For installation of separately sold components, use only designated parts and consult a specialist.
• Do not use fuses with improper capacity; this can cause failure or fire.
• Refrigerant is normally safe, but if it leaks, contact with flames (burners, heaters) can produce harmful gas. Do not operate until a service person confirms repairs are complete.
• Ensure proper earthing. Do not earth to utility pipes or telephone lines.
• Install an earth leakage breaker to prevent electric shock or fire, especially from power surges due to lightning.
• If the unit submerges due to natural disaster (flood, typhoon), consult your dealer and do not operate it to avoid malfunction, electric shock, or fire.
• Do not use the air conditioner for purposes other than its intended use, as this may degrade quality.
• Do not remove the outdoor unit's air outlet cover, as the exposed fan can cause injury.
• Ensure sufficient ventilation when using the unit with burners or heaters to prevent oxygen deficiency.
• Periodically check foundation blocks for damage; damaged blocks can cause the unit to fall and result in injury.
• Keep flammable spray cans away from the unit to prevent fire.
• To clean, stop operation and unplug the power cord to avoid electric shock.
• Do not operate with wet hands to prevent electric shock.
• Place items that could be damaged by water away from the indoor unit, as condensation may drip.
• Do not place burners or heaters where they are exposed to the unit's airflow, as this may cause incomplete combustion.
• Do not allow children to climb on or place objects on the outdoor unit.
• Do not expose animals and plants directly to the airflow, as it may be adverse.
• Do not wash the unit with water, as this may cause electric shock or fire.
• Do not install where flammable gas may leak, as this could cause a fire.
• Ensure proper drain piping for drainage. Incomplete piping can cause water leakage.
• This appliance is not intended for use by young children or infirm persons without supervision. Supervise children to ensure they do not play with the appliance.
• Consult an installation contractor for cleaning the indoor unit. Improper cleaning can damage parts or cause electric shock.
• Do not touch the air inlet or aluminum fins, as this may cause injury.
• Do not start or stop operation using the main power supply breaker. This can cause fire or water leakage. The fan may rotate abruptly if power failure compensation is enabled, posing an injury risk.
• Keep the area around the outdoor unit clear of objects, leaves, and debris. Leaves can attract small animals that may cause malfunctions or fire.
• Never touch internal parts of the remote controller.
• Do not remove the front panel; internal parts can be dangerous. Contact your dealer for internal adjustments.
• Avoid placing the remote controller where it can get wet, as water ingress can cause electric leaks or damage.
• Exercise caution when cleaning or inspecting the air filter, especially when working at heights. Ensure stability to prevent falls.

Operation Range

Operating outside the specified temperature and humidity ranges may cause safety devices to activate, prevent operation, or lead to water dripping from the indoor unit.

Cooling Operation Ranges:

• RZQ100: Indoor: DB 18-37°C, Humidity 80% or below; Outdoor: DB -15 to 50°C.
• RQ100: Indoor: DB 18-37°C, Humidity 80% or below; Outdoor: DB -5 to 46°C.
• RR100: Indoor: DB 18-37°C, Humidity 80% or below; Outdoor: DB -15 to 46°C.

Heating Operation Ranges:

• RZQ100: Indoor: DB 10-27°C; Outdoor: DB -19.5 to 21°C, WB -20 to 15.5°C.
• RQ100: Indoor: DB 10-27°C; Outdoor: DB -9 to 21°C, WB -10 to 15°C.

Cooling Operation Ranges (Australia Model Only):

• RZQ100: Indoor: DB 20-37°C, Humidity 80% or below; Outdoor: DB -5 to 46°C.

Heating Operation Ranges (Australia Model Only):

• RZQ100: Indoor: DB 10-27°C; Outdoor: DB -14 to 21°C, WB 15 to 15.5°C.

Note: DB = Dry bulb temperature, WB = Wet bulb temperature.

The remote controller's temperature setting range is 16°C to 32°C.

Installation Site

Choose a well-ventilated location without obstructions.

Avoid installation in:

• Areas with high mineral oil (e.g., cutting oil).
• Salty environments (e.g., beach areas).
• Areas with sulfurous gas (e.g., hot-spring resorts).
• Locations with significant voltage fluctuations (e.g., factories).
• Vehicles and vessels.
• Areas with oil or vapor spray (e.g., kitchens).
• Locations with machines generating electromagnetic waves.
• Areas with acid or alkaline steam or vapor.

Ensure snow protection measures are in place if applicable; consult your dealer for details.

Wiring

• All wiring must be performed by an authorized electrician. Consult your dealer; do not attempt wiring yourself.
• Use a separate power supply circuit for the air conditioner. Ensure all electrical work complies with local laws and regulations.

Noise and Vibration

• Select a location that can support the unit's weight and minimize running noises and vibrations.
• Ensure the outdoor unit's airflow is not obstructed, as this can reduce performance and increase noise.
• If abnormal noises occur during operation, consult your dealer.

Drain Piping

• Proper drain piping is essential for complete drainage. Clogged pipes can lead to water leakage from the indoor unit. If leakage occurs, stop operation and consult your dealer or service station.

Operation Procedure

Refer to the remote controller's operation manual for specific instructions.

Heating Operation Explanation:

• Defrost Operation: When frost builds up on the outdoor unit coil, heating efficiency decreases, and the system enters defrost mode. The indoor fan stops, and the remote controller may display a specific symbol. Defrost operation typically lasts 6-8 minutes (maximum 10 minutes) before returning to heating.
• Heating Capacity and Outside Air Temperature: Heating capacity decreases in colder temperatures. Consider using auxiliary heating systems. The system uses a warm air circulation method, which may take time to warm the entire room. An indoor fan may run at low speed until the unit reaches operating temperature.
• Air Flow Direction Adjustment: The air flow direction can be adjusted vertically and horizontally. Use the "AIR FLOW DIRECTION ADJUST" button. The flap display will show the current setting (swinging or fixed).

Movement of the Air Flow Flap:

• Automatic Swing: The flap swings continuously, varying the air direction.
• Fixed Direction: Press the button to stop swinging and fix the air direction.

The microcomputer may control airflow direction differently from the display under certain conditions (e.g., room temperature lower than setpoint for cooling, higher for heating, or during defrost operation).

Recommended Flap Positions:

• Cooling: Set flap parallel for optimal air distribution.
• Heating: Set flap downwards to direct warm air towards the floor.

Note: Make adjustments only when the flap is not swinging. Be cautious to avoid pinching fingers.

To protect the unit, turn on the main power switch 6 hours before operation. If the power is interrupted during operation, the system will restart automatically when power is restored.

Optimum Operation

To ensure optimal system performance:

• Set room temperature appropriately for comfort; avoid extreme heating or cooling.
• Use curtains or blinds to prevent direct sunlight during cooling to reduce heat gain.
• Ventilate the room regularly, especially during prolonged use.
• Keep doors and windows closed to maintain indoor air temperature and efficiency.
• Do not place other heaters directly below the indoor unit, as heat may deform plastic parts.
• Keep the area around the air inlet and outlet of the unit clear to prevent reduced performance or operation stoppage.
• Turn off the main power supply switch when the unit is not used for extended periods to save energy. Note that some power is consumed even when the system is on standby. Turn the main power supply switch on 6 hours before restarting for smooth operation.
• If the display shows a filter cleaning indicator, contact a qualified service person for filter cleaning.
• Utilize the air flow direction adjustment feature. Cold air settles low, and warm air rises. Adjust the flap parallel during cooling/dry modes and downwards during heating. Avoid directing airflow directly at people.

Maintenance (For Service Personnel)

Only qualified service personnel should perform maintenance.

Important Safety Precautions:

• Before accessing terminal devices, ensure all power supply circuits are interrupted.
• To clean, stop operation and turn off the power switch to prevent electric shock or injury.
• Do not wash the unit with water, as this may cause electric shock.
• Exercise caution when working at heights (e.g., using scaffolds).

How to Clean the Air Filter:

Clean the filter when the display shows a specific indicator. Increase cleaning frequency in highly contaminated environments (recommendation: every two weeks).

1. Remove Air Filters: Pull the handle in the indicated direction.
2. Clean Air Filter: Use a vacuum cleaner or wash with water. For very dirty filters, use a soft brush and neutral detergent. Rinse and dry in the shade.
3. Reset Air Filter: Ensure the filter is correctly reinstalled.
4. Reset Indicator: After turning on the power, press the "AIR FILTER CLEANING TIME ICON RESET BUTTON". The indicator should vanish.

Note: Do not use hot water above 50°C or expose filters to fire, as this may cause discoloration, deformation, or burning.

How to Clean Air Outlet and Outside Panels:

• Clean with a soft cloth. For stubborn stains, use water or neutral detergent.
• Note: Do not use gasoline, benzene, thinner, polishing powder, or liquid insecticide, as these can cause discoloration or warping. Avoid using water or air at 50°C or higher for cleaning.

Start Up After a Long Stop:

• Confirm air inlets and outlets are clear of obstructions.
• Check earth connection. Contact your dealer if any wiring issues are found.
• Clean the air filter and outside panels. Ensure the filter is properly attached.
• Turn on the main power supply switch. The remote controller display should appear.
• To protect the unit, turn on the main power supply switch at least 6 hours before operation.

Stopping the System for a Long Period:

• Run FAN OPERATION for half a day to dry the unit.
• Read the remote controller manual.
• Cut off the power supply. Turn off the main power supply switch to save energy. The remote controller display will turn off.
• Clean the air filter and exterior. Ensure the filter is replaced correctly.

Not Malfunction of the Air Conditioner

The following symptoms do not indicate a malfunction:

• System Does Not Restart Immediately: After pressing ON/OFF or adjusting temperature, a safety device may prevent immediate restart to protect the system. The unit will restart automatically after approximately 3 minutes if the OPERATION lamp is lit.
• System Does Not Start (Centralized Control): If the display shows a specific symbol and flashes, it indicates centralized control, and the unit cannot be controlled by the remote controller.
• System Does Not Start Immediately After Power On: Allow about one minute for the microcomputer to prepare for operation.
• White Mist from Unit: This can occur in high humidity during cooling, especially in dusty or oily environments, or when switching from defrost to heating operation.
• Air Conditioner Noises:
• A ringing sound upon startup is the temperature regulator working and usually quiets down.
• A continuous "Shuh" sound during cooling or defrost operation is the sound of refrigerant flow.
• A "Shuh" sound at start/stop or during defrost is due to refrigerant flow changes.
• A continuous low "Shah" sound during cooling or at stop may indicate the drain pump is operating.
• A "Pishi-pishi" squeaking sound is due to the expansion and contraction of plastic parts from temperature changes.
• Dust from Units: Dust may be blown out after a long period of inactivity as it is expelled from the unit.
• Unit Odors: The unit may absorb and emit room odors (furniture, cigarettes, etc.).
• Remote Controller Display " ": This temporary display immediately after power-on indicates the remote controller is functioning normally.

Trouble Shooting

If malfunctions occur, take the following measures and contact your Daikin dealer. Repairs must be performed by qualified service personnel.

WARNING: If the air conditioner exhibits abnormal conditions (e.g., burning smell), unplug the power cord and contact your dealer. Continued operation may lead to failure, electric shock, or fire.

• Frequent Safety Device Activation (Fuse, Breaker, Earth Leakage Breaker): Do not turn on the main power switch. Contact your dealer.
• ON/OFF Switch Not Working Properly: Turn off the main power switch and contact your dealer.
• Water Leaks from Unit: Stop operation and contact your dealer.
• Display Flashing with "UNIT No." and "MALFUNCTION CODE": Notify your Daikin dealer with the specific display information.

If the System Does Not Operate Properly (General Checks):

1. System Does Not Operate at All:
   • Check for power failure; wait for restoration. The system should restart automatically.
   • Check if fuses have blown. Turn off power supply.
   • Check if the breaker is tripped. Do not turn power on if the breaker is in the "Trip position"; contact your dealer.
2. System Stops Operating After Running:
   • Check if the air inlet or outlet of the indoor or outdoor unit is blocked. Remove obstructions and ensure ventilation.
   • Check if the air filter is clogged. Consult a qualified service person for cleaning (refer to MAINTENANCE).
3. System Operates but Insufficiently Cools or Heats:
   • Ensure air inlets/outlets are not blocked. Remove obstructions.
   • Check if the air filter is clogged. Consult a qualified service person for cleaning.
   • Verify the set temperature is appropriate.
   • Ensure the FAN SPEED is not set to LOW.
   • Check if the air flow angle is set correctly.
   • Ensure doors and windows are closed to prevent air leakage.
   • Use curtains or blinds to block direct sunlight during cooling.
   • Reduce the number of occupants or heat sources in the room, as excessive heat gain reduces cooling effectiveness.

Company Information

DAIKIN INDUSTRIES, LTD.

Head office: Umeda Center Bldg., 2-4-12, Nakazaki-Nishi, Kita-ku, Osaka, 530-8323 Japan

Tokyo office: JR Shinagawa East Bldg., 2-18-1, Konan, Minato-ku, Tokyo, 108-0075 Japan

DAIKIN EUROPE NV

Zandvoordestraat 300, B-8400 Oostende, Belgium