PANASONIC CU-XZ12AKUAC (01) PDF Document

To insert the batteries into the remote control for your PANASONIC CU-XZ12AKUAC, follow these steps:

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

2. Insert AAA or R03 batteries according to the polarity shown.

3. Close the cover.

To set the clock on the remote control for your PANASONIC CU-XZ12AKUAC, follow these steps:

1. Press the CLOCK button.

2. Press the up or down arrow buttons to set the time.

3. Press the SET button to confirm.

Additionally, you can press and hold the CLOCK button for approximately 5 seconds to switch the time display between 12-hour (am/pm) and 24-hour format.

To perform basic operations with your PANASONIC CU-XZ12AKUAC, follow these steps on the remote control:

1. **Start/Stop the operation:** Press the OFF/ON button. When the unit is ON, the “OFF” text disappears from the remote control display.

2. **Select the desired mode:** Press the MODE button to cycle through the available 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 to 86 °F (16.0 °C to 30.0 °C). To switch between Fahrenheit (°F) and Celsius (°C), press and hold the down arrow in the SELECT section for approximately 10 seconds.

To adjust the airflow direction on your PANASONIC CU-XZ12AKUAC, use 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 left and right or set it to swing automatically.

Important: Do not adjust the flap by hand.

Press the “FAN SPEED/QUIET” button on the remote control to cycle through the options.

FAN SPEED:

• When FAN AUTO is selected, the fan speed is adjusted automatically according to the operation mode.

• You can manually select different fan speeds. Select the lowest fan speed for a low noise operation.

QUIET:

• This operation reduces airflow noise.

• For Multi Split systems, Quiet mode only activates when the Quiet mode button is pressed for all indoor units that are switched ON.

To quickly reach the desired temperature, press the POWERFUL button on the remote control. This operation will continue until it is canceled. To cancel, press the POWERFUL button again or turn the unit OFF.

To reduce power consumption for better energy saving without sacrificing comfort, press the ECO button on the remote control. To cancel this operation, press the ECO button again. Please note that this operation cannot be used in FAN mode.

Room Freeze Protection (RFP) is a function used in unoccupied spaces during the winter to protect equipment or appliances from being damaged by freezing temperatures. This function is not applicable if your indoor unit is connected to a multi-split outdoor unit.

How it works:

When you press the RFP button, the unit will operate in Heat mode with high fan speed for proper room temperature monitoring. If the room temperature drops below the set temperature (50°F or 46°F), the compressor starts. When the temperature rises above the set temperature, the compressor stops. This cycle repeats continuously.

To operate:

Press the RFP button to select. The target temperature can be set to 50°F or 46°F. This operation overwrites the current operation mode and can be cancelled by pressing the MODE button.

Disclaimer:

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

You can set up to two different preset ON and OFF timers. The timer operation follows the clock setting on the remote control and will repeat daily once set.

To set the timer:

1. Press TIMER ON or TIMER OFF to select timer 1 or 2.

2. Press the up or down arrow buttons in the SELECT section to set the desired time.

3. Press SET to confirm the setting.

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:

If a timer was cancelled manually or due to a power failure, you can restore it. Press TIMER ON or TIMER OFF to select the setting, then press SET.

The nearest timer setting is displayed and will activate in sequence.

The FIREPLACE function helps distribute heat equally from an external heat source (like a fireplace) throughout the room. It does this by continuously blowing air from the indoor unit, even when the unit’s compressor is off. This function is not available if the unit is connected to a multi-split outdoor unit.

How to use:

• Press the FIREPLACE button to activate this function during Heat mode operation only.

• The fan speed is adjusted automatically based on the difference between the set temperature and the room temperature. A larger difference results in a higher fan speed.

• This operation can be changed by pressing the MODE or FIREPLACE buttons.

• The setting is memorized after the unit is turned off and on again.

• Press the button again to cancel.

Yes, some modes can be selected simultaneously, while others cannot.

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

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

The PANASONIC CU-XZ12AKUAC has the following operation modes:

• **AUTO:** The unit automatically selects an operation mode depending on the setting and room temperature. The POWER indicator blinks at the initial stage.

• **HEAT:** Provides heating. The POWER indicator blinks at the initial stage as the unit takes some time to warm up.

• **COOL:** Provides efficient comfort cooling to suit your needs.

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

• **FAN:** Circulates air in the room.

You may save energy by operating the unit within the recommended temperature ranges:

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

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

The airflow direction varies based on the mode and whether you have selected AUTO swing or manual swing.

When AUTO swing is selected:

• **In COOL/DRY mode:** The horizontal flap swings up/down automatically. Once the target temperature is achieved, the flap is fixed at the upper position.

• **In HEAT mode:** The horizontal flap is fixed at a predetermined position. The vertical flap swings left/right when the temperature rises.

When manual swing is selected:

• **In COOL/DRY mode:** The horizontal flap swings up/down automatically.

• **In HEAT mode:** The horizontal flap is fixed to the upper position when the discharge air is cold. It swings up-down automatically when the discharge air is warm.

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

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

The power supply requirements for the PANASONIC CU-XZ12AKUAC (model CS-Z12AKUAW / CU-XZ12AKUAC) are a 20 Amps Time Delay Circuit Breaker and a Rated Voltage of 208/230V.

Cleaning should be done at regular intervals to ensure optimal performance. A dirty unit may cause malfunction and you may retrieve a “H 99” error code.

• Before cleaning, always switch off the power at the circuit breaker.

• Do not touch the aluminium fin as the sharp parts may cause injury.

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

• Only use soap (around pH 7) or a neutral household detergent.

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

Indoor Unit:

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

Outdoor Unit:

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

Front Panel:

1. To remove: Raise the panel up, then slide it to the right and pull out.

2. Wash it gently and dry it.

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

Air Filters (Once every 2 weeks):

1. **Remove:** Open the front panel and pull out the air filters.

2. **Clean:** Wash/rinse the filters gently with water to avoid damaging the surface.

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

4. **Attach:** Insert the filters back into the unit and close the front panel.

Replace any damaged filters.

If your PANASONIC CU-XZ12AKUAC is not working efficiently, check the following:

• Ensure the temperature is set correctly.

• Close all doors and windows.

• Clean or replace the filters.

• Clear any obstruction at the air inlet and air outlet vents.

If the remote control is not working or the unit is not receiving the signal, please check the following:

• If the remote display is dim or the transmission signal is weak, insert the batteries correctly or replace weak batteries.

• Make sure the receiver on the indoor unit is not obstructed.

• Certain fluorescent lights may interfere with the signal transmitter. Consult an authorized dealer if the problem persists.

If your PANASONIC CU-XZ12AKUAC is not working, please check the following before calling for service:

• Check if the circuit breaker has tripped.

• Check if any timers have been set that might be preventing operation.

You can use the AUTO OFF/ON button on the indoor unit itself:

1. Raise the front panel to access the button.

2. **Press once:** The unit will operate in AUTO mode.

3. **Press and hold until 1 beep:** Release to use in forced COOL mode.

4. **Repeat step 3 (press and hold until 2 beeps):** Release to use in normal COOL mode.

5. **Repeat step 4 (press and hold until 3 beeps):** Release to use in forced HEAT mode.

6. **Press again:** This will turn the unit off.

To dim or restore the brightness of the indicators on the unit, press and hold the up arrow button in the SELECT section of the remote for 5 seconds.

After an extended period of non-use, perform the following checks:

• Check the batteries in the remote control.

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

• Use the AUTO OFF/ON button on the unit to select COOL or HEAT mode and run it for 15 minutes. 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

If you will not be using the unit for a long time, follow these steps:

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

2. Turn off the power supply at the circuit breaker and unplug the unit.

3. Remove the batteries from the remote control.

Switch off the power at the circuit breaker and consult an authorized dealer if you experience any of the following non-serviceable criteria:

• Abnormal noise during operation.

• Water or foreign particles have entered the remote control.

• Water leaks from the indoor unit.

• The circuit breaker switches off frequently.

• The 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 down arrow in the CHECK section for 5 seconds.

2. Press and hold the same button until you hear a beep sound, then write down the error code displayed on the remote.

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

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

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

These symptoms are often normal and do not indicate a malfunction:

• **Peculiar odour:** This may be due to a damp smell from walls, carpet, furniture, or clothing.

• **Cracking sound:** Changes in temperature can cause the unit to expand and contract, resulting in a cracking sound.

• **Water flowing sound:** This is the sound of refrigerant flowing inside the unit.

• **Mist from indoor unit:** During cooling, discharged cold air may condense into water vapour, appearing as mist.

• **Water/steam from outdoor unit:** During cooling, condensation can form on cold pipes and drip. During heating, frost that forms on the outdoor unit melts during the de-ice cycle and is discharged as water or steam.

The following are normal operational characteristics:

• **POWER indicator blinks before unit starts:** This is a preliminary step to prepare for a TIMER operation, allowing the unit to start early to achieve the desired temperature on time.

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

• **TIMER indicator is always ON:** When a timer has been set, it repeats daily.

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

• **Reduced capacity at lowest fan speed:** The lowest fan speed is for low noise operation; capacity may be reduced. Increase fan speed to increase capacity.

• **Indoor fan stops occasionally during heating:** This is to avoid an unintended cooling effect.

• **Airflow continues after operation stops:** This is to extract remaining heat from the indoor unit (for a maximum of 30 seconds).

To meet ENERGY STAR® criteria for energy efficiency, your PANASONIC CU-XZ12AKUAC must be matched with appropriate coil components. However, a proper refrigerant charge and proper airflow are critical to achieving the rated capacity and efficiency. The installation of this product should follow the manufacturer’s refrigerant charging and airflow instructions. Failure to confirm proper charge and airflow may reduce energy efficiency and shorten the equipment’s life.