PKA-A-KA4 - Air-conditioner MITSUBISHI - Free user manual and instructions

USER MANUAL PKA-A-KA4 MITSUBISHI

Air-Conditioners Indoor unit

OPERATION MANUAL FOR USER For safe and correct use, please read this operation manual thoroughly before operating the air-conditioner unit.

MANUEL D’UTILISATION POUR L’UTILISATEUR

1. Safety Precautions

► Before installing the unit, make sure you read all the

“Safety Precautions”.

► The “Safety Precautions” provide very important points regarding safety. Make sure you follow them. ► Please report to or take consent by the supply authority before connection to the system.

Symbols used in the text

Warning: Describes precautions that should be observed to prevent danger of injury or death to the user. Caution: Describes precautions that should be observed to prevent damage to the unit.

Symbols used in the illustrations

: Indicates a part which must be grounded. Warning: • For appliances not accessible to the general public. • The unit must not be installed by the user. Ask the dealer or an authorized company to install the unit. If the unit is installed improperly, water leakage, electric shock or fire may result. • Do not stand on, or place any items on the unit. • Do not splash water over the unit and do not touch the unit with wet hands. An electric shock may result. • Do not spray combustible gas close to the unit. Fire may result. • Do not place a gas heater or any other open-flame appliance where it will be exposed to the air discharged from the unit. Incomplete combustion may result. • Do not remove the front panel or the fan guard from the outdoor unit when it is running. Caution: • Do not use any sharp object to push the buttons, as this may damage the remote controller. • Never block or cover the indoor or outdoor unit’s air inlets or outlets.

• When you notice exceptionally abnormal noise or vibration, stop operation, turn off the power switch, and contact your dealer.

• Never insert fingers, sticks etc. into the air inlets or outlets. • If you detect odd smells, stop using the unit, turn off the power switch and consult your dealer. Otherwise, a breakdown, electric shock or fire may result. • This air conditioner is NOT intended for use by children or infirm persons without supervision. • Young children must be supervised to ensure that they do not play with the air conditioner. • If the refrigeration gas blows out or leaks, stop the operation of the air conditioner, thoroughly ventilate the room, and contact your dealer.

Disposing of the unit

When you need to dispose of the unit, consult your dealer.

Indoor Unit Fan speed Vane Louver Filter Filter cleaning indication

PKA-A·KA4 3 speeds (with auto) Auto with swing Manual Normal 100 hr

Emergency operation switch Louver Vane

Remote controller (Optional parts) Radio frequency interface

Wired remote controller

IR wireless remote controller

ON/OFF Note: (Only for IR wireless remote controller)

When using the IR wireless remote controller, point it towards the receiver on the indoor unit.

If the IR wireless remote controller is operated within approximately two minutes after power is supplied to the indoor unit, the indoor unit may beep twice as the unit is performing the initial automatic check. The indoor unit beeps to confirm that the signal transmitted from the IR wireless remote controller has been received. Signals can be received up to approximately 7 meters, 275 19/32 inch in a direct line from the indoor unit in an area 45° to the left and right of the unit. However, illumination such as fluorescent lights and strong light can affect the ability of the indoor unit to receive signals. If the operation lamp near the receiver on the indoor unit is flashing, the unit needs to be inspected. Consult your dealer for service. Handle the IR wireless remote controller carefully! Do not drop the IR wireless remote controller or subject it to strong shocks. In addition, do not get the IR wireless remote controller wet or leave it in a location with high humidity. To avoid misplacing the IR wireless remote controller, install the holder included with the IR wireless remote controller on a wall and be sure to always place the IR wireless remote controller in the holder after use. Outdoor unit

Indoor-Outdoor Connection wire Earth

About the operation method, refer to the operation manual that comes with each remote controller.

3.1. Turning ON/OFF Note:

Even if you press the ON/OFF button immediately after shutting down the operation is progress, the air conditioner will not start for about three minutes. This is to prevent the internal components from being damaged.

3.2. Operation mode select

Cool/Dry/Fan/Heat/Automatic (cool/heat)/Ventilation modes are available. Note: Heat and Automatic mode can not be available for cooling only units. Ventilation mode: only indicated on the following condition. Wired remote controller is used and LOSSNAY is connected. Automatic mode

According to a set temperature, cooling operation starts if the room temperature is too hot and heating operation starts if the room temperature is too cold.

During automatic operation, if the room temperature changes and remains 2 °C or more above the set temperature for 15 minutes, the air conditioner switches to cool mode. In the same way, if the room temperature remains 2 °C or more below the set temperature for 15 minutes, the air conditioner switches to heat mode. Cool mode

15 minutes (switches from heating to cooling)

Set temperature +2°C, +4°F

3.3. Fan speed setting

Note: The number of available fan speeds depends on the type of unit connected. In the following cases, the actual fan speed generated by the unit will differ from the speed shown the remote controller display. 1. When the unit is in “STAND BY” or “DEFROST” states. 2. When the temperature of the heat exchanger is low in the heat mode. (e.g. immediately after heat operation starts) 3. In HEAT mode, when room temperature is higher than the temperature setting. 4. When the unit is in DRY mode.

3.4. Airflow up/down direction setting

Note: During swing operation, the directional indication on the screen does not change in sync with the directional vanes on the unit. Available directions depend on the type of unit connected. In the following cases, the actual air direction will differ from the direction indicated on the remote controller display. 1. When the unit is in “STAND BY” or “DEFROST” states. 2. Immediately after starting heater mode (while the system is waiting for the operation mode change to take effect). 3. In heat mode, when room temperature is higher than the temperature setting.

<[Manual] To Change the Airflow’s Left/Right Direction>

* The louver button cannot be used. Model PKA-A·KA4 • Stop the unit operation, hold the lever of the louver airflow vanes, and adjust to the desired direction. * Do not set to the inside direction when the unit is in the cooling or drying mode because there is a risk of condensation and water dripping.

To prevent falls, maintain a stable footing when operating the unit.

15 minutes (switches from cooling to heating )

Because the room temperature is automatically adjusted in order to maintain a fixed effective temperature, cooling operation is performed a few degrees warmer and heating operation is performed a few degrees cooler than the set room temperature once the temperature is reached (automatic energy-saving operation).

► For LOSSNAY combination The following 2 patterns of operation is available. • Run the ventilator together with the indoor unit. • Run the ventilator independently. Note: (for IR wireless remote controller and RF thermostat) Running the ventilator independently is not available. No indication on the remote controller.

Timer functions are different by each remote controller. For details on how to operate the remote controller, refer to the appropriate operation manual included with each remote controller.

5. Emergency Operation for IR Wireless Remote Controller

[Combination Cooling and Heating Models] Cooling Heating Stop

[Cooling Only Models]

Operation Monitor Display

GREEN ORANGE The display will appear orange for 5 seconds following the switch operation as indicated at the left, and then it will return to the regular display.

STOP When the IR wireless remote controller cannot be used

When the batteries of the IR wireless remote controller run out or the IR wireless remote controller malfunctions, the emergency operation can be done using the emergency buttons on the grille. DEFROST/STAND BY lamp (Orange) Operation lamp (Green) Emergency operation switch (cooling/heating) Receiver • Each press of the emergency operation switch will toggle the operation mode. • Check “COOL/HEAT” with the operation monitor display. (The display will appear orange for 5 seconds after the switch operation.)

COOL HEAT Turning off

Lighting * Operation details at the time of emergency operation are as shown below. Note that over the first 30 minutes or so, the temperature adjustment will not function and the unit will be in continuous operation with the fan on high. Operation Mode Set Temperature Fan Speed Airflow Direction Up and Down

24°C, 75°F High Setting 1

24°C, 75°F High Setting 4 (5)

6. Care and Cleaning

Following indication shows that the filter needs cleaning. • Wired remote controller : “FILTER” • RF thermostat: “Clean Filter” • ASK authorized people to clean the filter. When resetting “FILTER” or “Clean Filter” display. Resetting the indication, refer to the operation manual of each remote controller.

Caution: • In removing the filter, precautions must be taken to protect your eyes from dust. Also, if you have to climb up on a stool to do the job, be careful not to fall. • When the filter is removed, do not touch the metallic parts inside the indoor unit, otherwise injury may result.

When two or more different types of indoor unit are controlled, the cleaning period differs with the type of filter. When the master unit cleaning period arrives, “FILTER” is displayed. When the filter display goes off, the cumulative time is reset. (only for wird remote controller) “FILTER” or “Clean Filter” indicates the cleaning period when the air conditioner was used under general indoor air conditions by criteria time. Since the degree of dirtiness depends on the environmental conditions, clean the filter accordingly. The filter cleaning period cumulative time differs with the model. This indication is not available for IR wireless remote controller.

► Cleaning the filters

• Clean the filters using a vacuum cleaner. If you do not have a vacuum cleaner, tap the filters against a solid object to knock off dirt and dust. • If the filters are especially dirty, wash them in lukewarm water. Take care to rinse off any detergent thoroughly and allow the filters to dry completely before putting them back into the unit. Caution: • Do not dry the filters in direct sunlight or by using a heat source, such as an electric heater: this may warp them. • Do not wash the filters in hot water (above 50°C), as this may warp them. • Make sure that the air filters are always installed. Operating the unit without air filters can cause malfunction.

A B Using both hands, pull both the bottom corners of the inlet grille to open the grille, then lift the filter until it clicks at the stop position.

Hold the knobs on the filter and pull the filter up, then pull it out downward. (Located in two places, on the left and right.) Front grille Filter

• Before you start cleaning, stop operation and turn OFF the power supply. • Indoor units are equipped with filters to remove the dust of suckedin air. Clean the filters using the methods shown in the following sketches.

Having trouble? Air conditioner does not heat or cool well.

When heating operation starts, warm air does not blow from the indoor unit soon.

During heat mode, the air conditioner stops before the set room temperature is reached.

Airflow up/down direction changes during operation or airflow up/down direction cannot be set.

When the airflow up/down direction is changed, the vanes always move up and down past the set position before finally stopping at the position.

A flowing water sound or occasional hissing sound is heard. A cracking or creaking sound is heard. The room has an unpleasant odor.

A white mist or vapor is emitted from the indoor unit.

Water or vapor is emitted from the outdoor unit.

The operation indicator does not appear in the wired remote controller display. (*1)

” appears in the wired remote controller display. (*1)

When restarting the air conditioner soon after stopping it, it does not operate even though the ON/OFF button is pressed.

Air conditioner operates without the ON/OFF button being pressed. (*1)

Air conditioner stops without the ON/OFF button being pressed. (*1)

Wired remote controller timer operation cannot be set. (*1)

“PLEASE WAIT” appears in the wired remote controller display. (*1)

An error code appears in the remote controller display.

Draining water or motor rotation sound is heard.

When dry mode starts, the set temperature changes.

Here is the solution. (Unit is operating normally.)

Clean the filter. (Airflow is reduced when the filter is dirty or clogged.) Check the temperature adjustment and adjust the set temperature. Make sure that there is plenty of space around the outdoor unit. Is the indoor unit air inlet or outlet blocked? Has a door or window been left open? Warm air does not blow until the indoor unit has sufficiently warmed up. When the outdoor temperature is low and the humidity is high, frost may form on the outdoor unit. If this occurs, the outdoor unit performs a defrosting operation. Normal operation should begin after approximately 10 minutes. During cool mode, the vanes automatically move to the horizontal (down) position after 1 hour when the down (horizontal) airflow up/ down direction is selected. This is to prevent water from forming and dripping from the vanes. During heat mode, the vanes automatically move to the horizontal airflow up/down direction when the airflow temperature is low or during defrosting mode. When the airflow up/down direction is changed, the vanes move to the set position after detecting the base position. These sounds can be heard when refrigerant is flowing in the air conditioner or when the refrigerant flow is changing. These sounds can be heard when parts rub against each due to expansion and contraction from temperature changes. The indoor unit draws in air that contains gases produced from the walls, carpeting, and furniture as well as odors trapped in clothing, and then blows this air back into the room. If the indoor temperature and the humidity are high, this condition may occur when operation starts. During defrosting mode, cool airflow may blow down and appear like a mist. During cool mode, water may form and drip from the cool pipes and joints. During heat mode, water may form and drip from the heat exchanger. During defrosting mode, water on the heat exchanger evaporates and water vapor may be emitted. Turn on the power switch. “ ” will appear in the wired remote controller display. During central control, “ ” appears in the wired remote controller display and air conditioner operation cannot be started or stopped using the wired remote controller. Wait approximately three minutes. (Operation has stopped to protect the air conditioner.) Is the on timer set? Press the ON/OFF button to stop operation. Is the air conditioner connected to a central wired remote controller? Consult the concerned people who control the air conditioner. Does “ ” appear in the wired remote controller display? Consult the concerned people who control the air conditioner. Has the auto recovery feature from power failures been set? Press the ON/OFF button to stop operation. Is the off timer set? Press the ON/OFF button to restart operation. Is the air conditioner connected to a central wired remote controller? Consult the concerned people who control the air conditioner. Does “ ” appear in the wired remote controller display? Consult the concerned people who control the air conditioner. Are timer settings invalid? If the timer can be set, WEEKLY , SIMPLE , or AUTO OFF appears in the wired remote controller display. The initial settings are being performed. Wait approximately 3 minutes. The protection devices have operated to protect the air conditioner. Do not attempt to repair this equipment by yourself. Turn off the power switch immediately and consult your dealer. Be sure to provide the dealer with the model name and information that appeared in the remote controller display. When cooling operation stops, the drain pump operates and then stops. Wait approximately 3 minutes. When Dry mode starts, the set temperature automatically changes to the optimum initial set temperature.

Having trouble? Noise is louder than specifications.

Here is the solution. (Unit is operating normally.)

The indoor operation sound level is affected by the acoustics of the particular room as shown in the following table and will be higher than the noise specification, which was measured in an echo-free room. High soundNormal rooms Low soundabsorbing rooms absorbing rooms Location Broadcasting Reception room, Office, hotel examples studio, music hotel lobby, etc. room room, etc. Noise levels 3 to 7 dB 6 to 10 dB

9 to 13 dB Nothing appears in the IR wireless remote controller display, the display is faint, or signals are not received by the indoor unit unless the IR wireless remote controller is close. (*2)

The batteries are low.

Replace the batteries and press the Reset button. If nothing appears even after the batteries are replaced, make sure that the batteries are installed in the correct directions (+, –). The self diagnosis function has operated to protect the air conditioner. Do not attempt to repair this equipment by yourself. Turn off the power switch immediately and consult your dealer. Be sure to provide the dealer with the model name.

The operation lamp near the receiver for the IR wireless remote controller on the indoor unit is flashing. (*2)

*1: Only for wired remote controller.

*2: Only for IR wireless remote controller.

Model Power source (voltage <V>/Frequency <Hz>) Rated Input (Indoor only) Rated Current (Indoor only) Heater Dimension (Height) Dimension (Width) Dimension (Depth) Fan airflow volume (Low-Middle-High) Noise level (Low-Middle-High) Net weight

Please be sure to put the contact address/telephone number on this manual before handing it to the customer.