PANASONIC CU-2Z18ABUC (01) PDF Document

Inserting the batteries:

1. Pull out the back cover of the remote control.

2. Insert AAA or R03 batteries.

3. Close the cover.

Setting the clock:

1. Press CLOCK, then press the up or down arrows to set the time.

2. Press SET to confirm.

To switch between 12-hour (am/pm) and 24-hour time formats, press and hold CLOCK for approximately 5 seconds.

1. Start/Stop the operation:

Press the OFF/ON button. When the unit is ON, “OFF” disappears from the remote control display.

2. Select the desired mode:

Press the MODE button to cycle through the modes: AUTO -> HEAT -> FAN -> DRY -> COOL.

3. Select the desired temperature:

Press the TEMP UP or TEMP DOWN buttons. The selection range is 60 °F – 86 °F (16.0 °C – 30.0 °C).

To switch the temperature display between °F and °C, press and hold the down arrow in the SELECT section for approximately 10 seconds.

You can adjust the airflow direction using the AIR SWING buttons on the remote control.

Upper/Lower direction: Press the vertical AIR SWING button to adjust the flap up and down or set it to swing automatically.

Lateral direction: Press the horizontal AIR SWING button (<>) to adjust the airflow side to side or set it to swing automatically.

Important: Do not adjust the flap by hand.

Press the FAN SPEED/QUIET button to cycle through the options.

FAN SPEED:

You can select different fan speeds. When FAN AUTO is selected, the fan speed is adjusted automatically according to the operation mode. Select the lowest fan speed setting for low noise operation.

QUIET:

This operation reduces airflow noise. For a Multi Split system, Quiet mode only activates when the Quiet mode button is pressed for all indoor units that are switched ON.

To reach the desired temperature quickly (POWERFUL mode):

Press the POWERFUL button. This operation continues until it is cancelled. To cancel, press the POWERFUL button again or turn OFF the unit.

To reduce power consumption (ECO mode):

Press the ECO button. This mode helps save energy without sacrificing comfort. To cancel, press the ECO button again. This operation cannot be used in FAN mode.

You can set the timer to turn the unit on and off at 2 different preset times.

1. Select TIMER ON or TIMER OFF by pressing the respective buttons. Each press cycles through timer 1 -> timer 2 -> exit setting.

2. Set the desired time using the up and down arrows in the SELECT section.

3. Confirm the setting by pressing SET.

To cancel the timer: Press TIMER ON or TIMER OFF to select the respective setting (1 or 2), then press CANCEL.

To restore a cancelled timer: Press TIMER ON or TIMER OFF to select the setting, then press SET.

The timer operation follows the clock setting on the remote control and will repeat daily once set.

ECO and FAN SPEED/QUIET can be selected at the same time.

POWERFUL, FAN SPEED and QUIET cannot be selected at the same time.

AUTO: The unit will select an operation mode every 3 hours depending on the setting, room, and outdoor temperature. The POWER indicator blinks at the initial stage.

HEAT: The POWER indicator blinks at the initial stage. The unit will take some time to warm up.

COOL: Provides efficient comfort cooling to suit your needs.

DRY: Operates at low fan speed for a gentle cooling operation. When FAN AUTO is selected, DRY mode will operate with humidity control.

FAN: To circulate air in the room.

For Multi Split Systems: It is possible to operate indoor units individually or simultaneously, with priority given to the first unit turned on. HEAT and COOL/DRY/FAN modes cannot activate at the same time for different indoor units. The non-priority unit will stop and its POWER indicator will blink in standby condition.

You may save energy when operating the unit within the recommended temperature range:

HEAT: 68 °F ~ 75 °F / 20.0 °C ~ 24.0 °C.

COOL: 79 °F ~ 82 °F / 26.0 °C ~ 28.0 °C.

When power is resumed after a power failure, the operation will restart automatically with the last operation mode and airflow direction. This control is not applicable when the TIMER is set.

Room Freeze Protection (RFP) is used in unoccupied spaces during the winter to protect equipment or appliances from being destroyed by freezing temperatures.

When RFP is selected, the unit will operate in Heat mode and high fan speed for proper room temperature monitoring. When the sensor detects the room temperature drops below the set temperature, the compressor operation begins. When the temperature is reached, the compressor stops. This cycle repeats continuously. When connected to a Multi Split outdoor unit, the unit will run a heating operation with a target room temperature set at 60°F.

Disclaimer: This function may not be performed if the unit is not energized or is in a protection mode. In the event of a power failure, this mode will not function. During RFP mode, POWERFUL, QUIET, and FAN SPEED selections are all disabled.

Use this air conditioner in the temperature range indicated in the table. DBT: Dry bulb temperature, WBT: Wet bulb temperature.

Cleaning should be done at regular intervals. A dirty unit may cause malfunction and display a “H 99” error code.

Before cleaning:

1. Switch off the power at the circuit breaker.

2. Do not touch the aluminum fin, as sharp parts may cause injury.

3. Do not use benzine, thinner, or scouring powder.

4. Use only soap (pH 7) or neutral household detergent.

5. Do not use water hotter than 104 °F / 40 °C.

Indoor unit:

Wipe the unit gently with a soft damp cloth to avoid scratches. The coils and fans should be cleaned periodically by an authorized dealer.

Outdoor unit:

Clean debris that surrounds the unit and clear any blockage from the drain pipe.

Front Panel:

1. To remove: Raise the panel up, slide it to the right (A), and pull it out (B).

2. Wash gently and dry.

3. To re-attach: Hold the panel horizontally, match and push it in, close it down, then press both ends and the center to secure it.

Air filters (Once every 2 weeks):

1. Remove the air filters from the unit.

2. Wash/rinse the filters gently with water.

3. Dry the filters thoroughly in a shaded area, away from fire or direct sunlight.

4. Re-insert the filters into the unit. Replace any damaged filters.

These symptoms do not necessarily indicate a malfunction:

POWER indicator blinks before the unit is switched on: This is a preliminary step to prepare for a TIMER operation. The unit may start up to 35 minutes before the set time to achieve the desired temperature.

POWER indicator blinks during HEAT mode with no warm air: The unit is in defrost mode.

TIMER indicator is always ON: When the Timer has been set, the setting repeats daily.

These symptoms do not necessarily indicate a malfunction:

Operation is delayed a few minutes after restarting: This delay is a protection for the unit’s compressor.

Cooling/heating capacity is reduced during lowest fan speed setting: This is to ensure low noise operation. To increase capacity, increase the fan speed.

In COOL mode, the indoor unit fan speed reduces when the room temperature is near the set temperature: This is to prevent room humidity from rising. The fan will resume its set speed when the room temperature increases.

The following do not indicate a malfunction:

Indoor fan stops occasionally during heating: To avoid an unintended cooling effect.

Indoor fan stops occasionally during automatic fan speed setting: This helps to remove surrounding odor.

Airflow continues for up to 30 seconds after operation has stopped: To extract remaining heat from the indoor unit.

The room has a peculiar odor: This may be due to a damp smell from the wall, carpet, furniture, or clothing.

Cracking sound during operation: Caused by the unit expanding and contracting due to temperature changes.

Water flowing sound during operation: This is the sound of refrigerant flowing inside the unit.

Mist emerges from the indoor unit: During cooling, discharged cold air may condense into water vapor.

Outdoor unit emits water or steam: During cooling, condensation on cold pipes may drip. During heating, frost from the deice cycle melts and is discharged as water or steam.

Discoloration of some plastic parts: This is subjected to the types of materials used and is accelerated by exposure to heat, sunlight, UV light, or other environmental factors.

You can operate the unit from the indoor unit’s control button.

1. Raise the front panel.

2. Press the AUTO OFF/ON button once to use in AUTO mode.

3. Press and hold the button until you hear 1 beep, then release to use in forced COOL mode.

4. Press and hold again until you hear 2 beeps, then release to use in normal COOL mode.

5. Press and hold again until you hear 3 beeps, then release to use in forced HEAT mode.

6. Press the button again to turn the unit off.

Conducting a seasonal inspection after extended non-use:

1. Check the batteries in the remote control.

2. Check that there is no obstruction around the air inlets and outlet vents.

3. Use the AUTO OFF/ON button on the unit to select COOL or HEAT mode. After 15 minutes of operation, it is normal to have the following temperature difference between the air inlet and outlet vents:

COOL: ≥ 14.4 °F / 8 °C

HEAT: ≥ 25.2 °F / 14 °C

Preparing for an extended period of non-use:

1. Activate HEAT mode for 2-3 hours to remove any moisture left in the internal parts to prevent mold growth.

2. Turn off the power supply and unplug the unit.

3. Remove the batteries from the remote control.

SWITCH OFF POWER AT THE CIRCUIT BREAKER and consult an authorized dealer in the following conditions:

• Abnormal noise during operation.

• Water/foreign particles have entered the remote control.

• Water leaks from the indoor unit.

• Circuit breaker switches off frequently.

• Power cord becomes unnaturally warm.

• Switches or buttons are not functioning properly.

If the unit stops and the TIMER indicator blinks, use the remote control to retrieve the error code.

1. Press and hold the CHECK button on the bottom of the remote for 5 seconds.

2. Press the up or down arrows in the SELECT section until you hear a beep sound, then write down the error code displayed.

3. Press and hold the CHECK button for 5 seconds to quit checking.

4. Turn the unit off and inform an authorized dealer of the error code.

For certain errors, you may restart the unit for limited operation if there are 4 beeps when operation starts.

* Some error codes may not be applicable to your model. Consult an authorised dealer for clarification.