PANASONIC CU-3Z22ABUC (01) PDF Document

The following accessories are included with your PANASONIC CU-3Z22ABUC air conditioner:

• Remote control

• AAA or R03 batteries x 2

• Remote control holder

• Screws for remote control holder x 2

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

2. Insert AAA or R03 batteries.

3. Close the cover.

1. Press the CLOCK button, then press the arrow buttons to set the time.

2. Press the SET button to confirm.

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

1. Press the OFF/ON button to start or stop the operation. When the unit is ON, “OFF” disappears from the remote control display.

2. Press the MODE button to select the desired mode (AUTO, HEAT, FAN, DRY, COOL).

3. Press TEMP UP or TEMP DOWN to select the desired temperature. The selection range is 60 °F to 86 °F (16.0 °C to 30.0 °C).

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

Use the AIR SWING buttons on your remote control:

• Press the vertical AIR SWING button to adjust the Upper/Lower direction. This will make the flap swing up and down.

• Press the horizontal AIR SWING button to adjust the Lateral direction. This will make the louvers swing left and right.

Do not attempt to adjust the flap by hand.

Press the FAN SPEED/QUIET button 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 a Multi Split system, Quiet mode only activates when the Quiet mode button is pressed for all indoor units that are switched ON.

Press the POWERFUL button. This operation will continue until it is canceled. To cancel, press the POWERFUL button again or turn the unit OFF.

Press the ECO button. This reduces power consumption for better energy saving 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 button.

2. Set the desired time using the arrow buttons.

3. Press the SET button to confirm the setting.

• To cancel a timer, press TIMER ON or TIMER OFF to select the respective setting (e.g., ① or ②), then press CANCEL.

• If a timer was canceled 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 timer operation follows the remote control’s clock setting and will repeat daily once set.

No, POWERFUL, FAN SPEED, and QUIET modes cannot be selected at the same time. However, ECO mode can be selected at the same time as FAN SPEED/QUIET mode.

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

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, but HEAT and COOL/DRY/FAN modes cannot activate at the same time for different indoor units. The unit that is turned on first gets priority.

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 settings. This control is not applicable when the TIMER is set.

Room Freeze Protection function (RFP) is used in spaces that are unoccupied during the winter to protect any equipment or appliances which may be destroyed as a result of freezing temperature. When RFP is selected, the unit will operate in Heat mode with high fan speed for proper room temperature monitoring. When the sensor detects the room temperature dropping below the set temperature, the compressor operation begins. When the temperature is reached, the compressor stops. This cycle repeats continuously.

Disclaimer: This function may not be performed if the unit is not energized or is in protection mode. It cannot be used unless the unit is energized and set into RFP mode, and it will not function in the event of a power failure. During RFP mode, POWERFUL OPERATION, QUIET OPERATION, and FAN SPEED selection are all disabled.

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

The required Time Delay Circuit Breaker and Rated Volts for the PANASONIC CU-3Z22ABUC and associated indoor units are listed below.

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

• Switch off the power at the circuit breaker before cleaning.

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

• Do not use benzine, thinner or scouring powder.

• Use only soap (pH 7) or 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: Wash gently and dry.

Air filters (Once every 2 weeks):

• Wash/rinse the filters gently with water to avoid damaging the surface.

• Dry the filters thoroughly under a shade, away from fire or direct sunlight.

• Replace any damaged filters.

To remove the front panel:

1. Raise the panel up.

2. Slide the front panel to the right and pull it out.

To attach the front panel securely:

1. Hold the panel horizontally.

2. Match and push it in.

3. Close the panel down.

4. Press both ends and the center of the front panel to secure it.

Remove air filter: Open the front panel and pull the air filters out from the unit.

Attach air filter: Insert the filters back into the unit, ensuring they are correctly placed before closing the front panel.

This is a preliminary step to prepare for a TIMER operation that has been set. When the timer is set to ON, the unit may start earlier (up to 35 minutes) before the actual set time to achieve the desired temperature on time.

The unit is in defrost mode. This is normal operation to remove frost from the outdoor unit.

When a timer has been set, the timer setting repeats daily, so the indicator remains on to show that a timer is active.

The delay is a protection measure for the unit’s compressor. This is normal.

This is to avoid an unintended cooling effect. The fan will pause to prevent blowing cool air while the unit prepares to heat.

Changes in temperature cause the plastic parts of the unit to expand and contract slightly, which can produce a cracking sound. This is normal.

During cooling operation, the discharged cold air may cool the moisture in the room air rapidly, causing it to condense into a fine mist or water vapor. This is a normal phenomenon.

Please check the following:

• Set the temperature correctly.

• Close all doors and windows.

• Clean or replace the filters.

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

First, check if the batteries are inserted correctly. If they are, the batteries may be weak and need to be replaced.

Check if the circuit breaker is tripped. Also, check if any timers have been set that may be preventing operation.

Make sure the receiver on the indoor unit is not obstructed. Be aware that certain fluorescent lights may interfere with the signal transmitter; if this is the case, consult an authorized dealer.

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

1. Raise the front panel.

2. Press the 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. Repeat step 3. Press and hold the button until you hear 2 beeps, then release to use in normal COOL mode.

5. Repeat step 4. Press and hold the button until you hear 3 beeps, then release to use in forced HEAT mode.

6. Press the button again to turn off.

To dim or restore the brightness of the indicators on the unit, press the SELECT down arrow button on the remote for 5 seconds.

• 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. 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

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

• Turn off the power supply and unplug the unit.

• Remove the batteries from the remote control.

SWITCH OFF POWER AT THE CIRCUIT BREAKER then please consult an authorized dealer when the following conditions occur:

• 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 the CHECK button for 5 seconds.

2. Press the arrow buttons until you hear a beep sound, then write down the error code displayed.

3. Press 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.

The following table lists the diagnostic display codes and their corresponding meanings. Note that some error codes may not be applicable to your model.