Panasonic S-18PU3HB Indoor Unit Air Conditioner Instruction Manual

Panasonic S-18PU3HB Indoor Unit Air Conditioner

Product Information

Specifications

• Model No. Indoor Unit: S-18PU3HB, S-2124PU3HB, S-3448PU3HB
• Model No. Outdoor Unit : U-18PZ3H5, U-21PZ3H5, U-24PZ3H5, U-34PZ3H5, U-43PZ3H5, U-48PZ3H5, U-43PZ3H8, U-48PZ3H8
• Temperature Range: 3 2°F (89.6°C) to 18°F (64.4°C)
• Cooling Capacity: 30,000 BTU/hr
• Heating Capacity: 43,000 BTU/hr

Product Usage Instructions

• Installation
  Before operating the unit, please read these operating instructions thoroughly and keep them for future reference. Before installation, the installer should read the Installation Instructions and request the customer to keep them for future reference.

• Remote Control Usage
  Use the remote control within 8 meters from the remote control receiver on the indoor unit.

Inserting Batteries into the Remote Control

1. Pull out the back cover of the remote control.
2. Insert AAA or R03 batteries.
3. Close the cover.

Basic Operation
To start/stop the operation

• Press the OFF/ON button.

Setting the Clock

1. Press the CLOCK button, then press UP or DOWN to set the time. Press and hold for approximately 5 seconds to switch between 12-hour (am/pm) or 24-hour format.
2. Press the SET button to confirm.

Selecting Mode
Press the MODE button to select the desired mode

• FAN – Fan mode
• AUTO – Automatic mode
• HEAT – Heating mode
• DRY – Dehumidifying mode
• COOL – Cooling mode

Adjusting Temperature
To adjust the desired temperature

1. Press the TEMP UP or TEMP DOWN button to select the desired temperature. The selection range may vary depending on the mode selected (not applicable to FAN mode).

Frequently Asked Questions (FAQ)

1. Q: How far can I use the remote control from the indoor unit?
   A: You can use the remote control within 8 meters from the remote control receiver on the indoor unit.

2. Q: What are the available modes?
   A: The available modes are FAN, AUTO, HEAT, DRY, and COOL.

3. Q: How do I set the clock?
   A: To set the clock, press the CLOCK button on the remote control, then use the UP or DOWN button to adjust the time. Press and hold for approximately 5 seconds to switch between 12-hour (am/pm) or 24-hour format. Press the SET button to confirm.

4. Q: How do I adjust the temperature?
   A: To adjust the temperature, press the TEMP UP or TEMP DOWN button on the remote control to select the desired temperature. The selection range may vary depending on the mode selected (not applicable to FAN mode).

Operating Instructions 14-Air Conditioner

• Before operating the unit, please read these operating instructions thoroughly and keep them for future reference. Before installation, the installer should: Read the Installation Instructions, then request the customer keep them for future reference.

Quick Guide

Inserting the batteries

1. Pull out the back cover of  remote control.
2. Insert AAA or R03 batteries.
3. Close the cover.

A Clock setting

1. Press  , then press  to set the time.
   • Press  for approximately 5 seconds to show the time as 12-hour (am/pm) or 24-hour.
2. Press  to confirm.

B Basic operation

1. Press to start/ stop the operation.
   When the unit is ON , disappears from the remote control display.

2. Press  to select the desired mode.

3. Press TEMP UP, TEMP DOWN to select the desired temperature.
   Selection range:

   • 16.0 °C ~ 30.0 °C / 60 °F ~ 86 °F.(Vary depending to Mode selection. Not applicable to FAN mode)
   • Press    for approximately 10 seconds to show the temperature as °C or °F.

Accessories Included

• Remote control
• AAA or R03 batteries × 2
• Remote control holder
• Screws for remote control holder × 2
• To be purchased separately: Timer Remote Controller
  • (Part no.: CZ-RTC4)
  • High-spec Wired Remote Controller
  • (Part no.: CZ-RTC5B)
  • Wired Remote Controller
  • (Part no.: CZ-RTC6 series)
• Panel
  • (Part no.: CZ-KPU3H)

The illustrations in this manual are for explanation purposes only and may differ from the actual unit. They are subject to change without notice.

Optional (For all indoor units)

• Timer Remote Controller
  • (Part no.: CZ-RTC4)
• High-spec Wired Remote Controller
  • (Part no.: CZ-RTC5B)
• Wired Remote Controller
  • (Part no.: CZ-RTC6 series)

Please read these remote controller Operating Instructions packed with the Remote Controller unit.

How to Use

• Note: When the LED indicator blinks, the “System Auto Configuration” is in progress. The process requires approx. 5 mins for new product first time start up and 15 sec for subsequent operation start up.

• To adjust fan speed

•  The fan speed can be adjusted as desired by using remote control.

• Keeps the room ventilated.

• The air is discharge evenly through 4 output vents.

• The fl aps swings up and down automatically.

• Do not adjust the fl aps by hand.

• There are 5 options for manual airflow direction.

• The airflow direction can be adjusted as desired by using remote control.

To enjoy fresher and cleaner environment

•  nanoe™X automatically starts when the unit is turned on.
• Press to turn OFF this operation manually.
• This operation can be activated even when the unit is OFF. Note that the fl ap and fan speed will operate according to the remote control setting.
• If a power failure occurs during this operation, this operation resumes immediately when power resumes.

To set the timer

•  To turn ON or OFF the unit at a preset time.

•  When ON timer is set, the unit may start early before the actual set time in order to achieve the desired temperature on time.

• If the timer has been cancelled manually, you can restore the previous setting by pressing .

• If power failure, you can restore the timer again by pressing .

•  The timer operation follows the clock setting on the remote control and will repeat daily when timer has been set. For clock setting, refer to Quick Guide.

To Learn More…

Operation mode

• FAN : To enables air circulation in the room.
• AUTO : Unit selects operation mode according to setting temperature, outdoor temperature and room temperature.
• HEAT : The unit will take some time to warm up.
• COOL : Provides efficient comfort cooling to suit your needs.
• DBRY : When the room temperature is more likely to reach the level that was set, the fan  speed is set to ‘‘breeze’’ (light wind) automatically.

Energy saving temperature setting

• You may save energy when operating the unit within the recommended temperature range.
• HEAT : 20.0 °C ~ 24.0 °C / 68 °F ~ 75 °F.
• COOL: 26.0 °C ~ 28.0 °C / 79 °F ~ 82 °F.

Airflow direction

• In COOL/DRY mode
  • If AUTO is set, the flap swings up/down automatically.
• In HEAT mode
  • If AUTO is set, the horizontal flap is fixed at the predetermined position.

Auto restart control

• When power is resumed after a power failure, the operation will restart automatically with the last operation mode and airflow direction.

Operating conditions

• Use this air conditioner in the temperature range indicated in the table.

Cleaning the Air Conditioner

Cleaning has to be carried out at regular intervals to ensure the unit is at optimal performance. A dirty unit may cause malfunction. Consult an authorised dealer.

• Before cleaning, switch off the power supply and unplug the unit.
• Do not touch the aluminium fi n as the sharp parts may cause injury.
• Do not use benzine, thinner or scouring powder.
• Use soap ( pH 7) or neutral household detergent only.
• Do not use water hotter than 40 °C / 104 °F.

Air Filter Removal

Air Filter Installation

1. Insert the air filter to the tabs of the intake grille.
2. Slowly bring up the intake grille.
3. Firmly press the latches to lock the intake grille.

Air filter maintenance
Cleaning is needed when: “FILTER” lights up on the indicator display at the panel.

•  lt is recommended to clean the air filter every 6 weeks.
• After the air filter is cleaned, press to reset.

Optional (For all indoor units)

• Do not operate without an air filter.
• Vacuum, wash/rinse the air filter gently with water to avoid damage to the air filter surface.
• Do not dry the part with a hair dryer or a stove.
• Replace any damaged filter.

Internal Cleaning Function

• Internal Cleaning Operation
  During Cool or Dry Mode operation with nanoeX function ON, when the unit operation is turned OFF, the unit will operate internal drying and activate nanoe™X. This is to suppress mold proliferation inside the unit
  (airflow passage, fan and heat exchanger). Mold proliferation suppression effect may changed depending on the unit’s installation environment and operation time.

• “nanoe™X” lights up on the indicator display at the panel during internal cleaning operation.

• This function will be operate when the unit was in Cool or Dry Mode operation with nanoeX function ON before the unit is turn off for more than 5 minutes.

• If the air conditioner operate less than 5 minutes, the internal cleaning operation will not perform.

• While the internal cleaning operation is running, the indoor temperature may increase occasionally.

• The internal cleaning operates approximate for 75 minutes.

• If you wish to start air conditioner operation during internal cleaning,

• press (wireless remote controller)

• press (CZ-RTC5B)

• press (CZ-RTC6 series

• If you wish to stop the internal cleaning operation,

• press twice    (wireless remote controller)

• press (CZ-RTC5B)

• press  (CZ-RTC6 series)

• When the internal cleaning operation completed, the remote controller displayed as shown.

NOTES

• Internal cleaning functions can be operated only with the indoor unit equip with nanoe ™X feature.
• The internal cleaning function is set to operate automatically by default. If you wish to set to OFF, refer to the operating instructions of the remote controller which is adaptable to the nanoe™X function.
• If you wish to set the internal cleaning function to OFF with CZ-RTC6 series remote controller, use Panasonic H&C Control App. This app is compatible with remote controller  model CZ-RTC6L and CZ-RTC6BLW (CZ-RTC6 is incompatible with this app).
• If you wish to set the internal cleaning function to OFF using wireless remote controller, consult an authorized dealer for setting.

Troubleshooting

The following symptoms do not indicate malfunction.

• The indicator LED blinks and the system is not turn on or respond to remote controller immediately after power on.
• Please wait a moment (5min/15sec) after power on the system.

|

• For new product first time power on after installation, the system requires approximately 5 minutes for “System Auto configuration Process”.
• For subsequent operation start up by power switch, the system requires 15secs for “Program Initialization”.

TIMER indicator is always ON.| When Timer has been set, the Timer setting repeats daily.
Operation is delayed a few minutes after restarting.| The delay is a protection to the unit’s compressor.
Indoor fan stops occasionally during heating operation.| To avoid unintended cooling effect.
Fan operation continues after unit is turn off.| It is normal when the internal cleaning is in operation for approximately 75 minutes.
Operation starts after power resumes.|  Auto restart is in function and operates under previous setting.
Airflow continues even after operation has stopped.| To extract the remaining heat from the indoor unit (maximum 30 seconds).
The room has a peculiar odor.| This may be due to damp smell emitted by the wall, carpet, furniture or clothing.
Cracking sound during operation.| Changes in temperature caused the unit to expand and contract.
Water flowing sound during operation.| Refrigerant flow inside the unit.
Mist emerges from indoor unit.| During cooling operation, the discharged cold air may condense to water vapour.
 Outdoor unit emits water or steam.|

• During cooling operation, condensation occurs on cold pipes and the condensed water may drip from the outdoor unit.
• During heating operation, frost formed on the outdoor unit during deice cycle melts and is discharged as water or steam.

Unit switch to FAN operation and air become humid.| This happens when the room temperature reaches the set temperature, operation switches to FAN mode and the humidity increase.
During dry mode, cold air blow out.| The unit is running cooling operation with low fan speed to dehumidify the room.
Discoloration of some plastic parts.| Discoloration is subjected to the types of materials used in plastic parts. It is accelerated when exposed to heat, sun light, UV light or environmental factors.
Soft buzzing sound from indoor unit during nanoe™X operation.| It is normal when the nanoe™X generator is working. If you are concerned about the sound, cancel the nanoe™X operation.

Check the following before calling for servicing.

• 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.

Noisy during operation.|

• Check if the unit has been installed at an incline.

• Close the intake grille properly.

• Remote control does not work.

• (Display is dim or transmission signal is weak.)

|

• Insert the batteries correctly.
• Replace weak batteries.

The unit does not work.|

• Check if the circuit breaker is tripped.
• Check if timers have been set.

The unit does not receive the signal from the remote control.|

• Make sure the receiver is not obstructed.
• Make sure the address is set correctly.
• Make sure the remote control signal transmission is within the range.
• Certain fluorescent lights may interfere with the signal transmitter. Consult an authorised dealer.

How to retrieve error codes

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

| Diagnostic display| Abnormality/Protection control
---|---|---
Outdoor| E06| Outdoor Unit Error In Receiving Signal from Indoor Unit
E12| Automatic Address Setting Start Prohibition
E14| Duplication of Main Unit in Group Control
E15| The Total Capacity of Indoor Units is Too Low
E16| The Total Capacity of Indoor Units is Too High
E20| Indoor/Outdoor Communication Wire Connection Abnormal
E24| Outdoor unit communication error
E29| Outdoor unit communication error
F04| Outdoor Compressor Discharge Temperature Sensor (TD) Abnormal
F06| Outdoor Heat Exchanger (Liquid) Temperature Sensor (C1) Abnormal
F07| Outdoor Heat Exchanger (Center) Temperature Sensor (C2) Abnormal
F08| Outdoor Air Temperature Sensor (TO) Abnormal
F12| Outdoor Compressor Suction Temperature Sensor (TS) Abnormal
F23| Outdoor gas pipe temperature sensor trouble
F24| Outdoor liquid pipe temperature sensor trouble
F31| Outdoor Unit PCB EEPROM Abnormal
H01| Compressor Over Current Detected
H02| PAM/PFC Abnormal
H03| Primary Current CT Sensor Abnormal
H31| HIC Abnormal, DC Voltage Not Detected
L04| Duplication of Outdoor Unit Address
L10| Outdoor Unit Capacity Is Not Set Or Wrong Setting
L13| Indoor Unit Type Is Not Set Or Wrong Setting
L18| 4-Way Valve Operation Abnormal
P03| Compressor Discharge Temperature Abnormal
P04| High Pressure Switch Is Activated
P05| AC Power Supply Abnormal
P07| HIC (IPM) Temperature Abnormal
P13| Refrigerant Valve Abnormal
P15| Insufficient Refrigerant or Valve Closed
P16| Outdoor Compressor Over Current
P22| Outdoor Fan Motor Abnormal
P29| Outdoor Compressor Start-up Abnormal
P31| Indoor Unit Group Control Abnormal

TRPOUBLESHOOTING

| Diagnostic display| Abnormality/Protection control
---|---|---
Indoor| E01| Remote Controller Error In Receiving Signal from Indoor Unit
E02| Remote Controller Error In Transmitting Signal To Indoor Unit
E03| Indoor Unit Error In Receiving Signal from Remote Controller
E04| Indoor unit not receiving signal from the outdoor unit
E08| Duplication of Indoor Unit Address Setting
E09| Duplication of Main Remote Controller Setting
E18| Group Control Main Indoor Unit Error In Receiving Signal From Sub Indoor Unit
F01| Indoor Heat Exchanger Temp. sensor (E1) trouble
F02| Indoor Heat Exchanger Temp. sensor (E2) trouble
F10| Indoor Air temperature sensor (TA) trouble
F29| Indoor Unit PCB EEPROM Abnormal
L02| Indoor & Outdoor Unit Type Mismatch
L03| Duplication of Main Indoor Unit Address Setting in Group Control
L07| Group Control Wiring is Connected to Individual Control Indoor Unit
L08| Indoor Unit Address is Not Set
L09| Indoor Unit Capacity is Not Set
P01 or P12| Indoor fan motor abnormality
P09| Faulty wiring connections of indoor unit panel (cassette)
P10| Indoor Float switch abnormal
P11| Indoor Drain pump abnormal

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

When…

• The remote control is missing or a malfunction has occurred
• Press AUTO OFF/ON once.
• The LED indicator is lit.
• Auto operation starts. If Auto operation is not possible, the unit starts Cooling if the room temperature at the time is 24 °C or higher; otherwise, the unit starts Heating.
• Press AUTO OFF/ON again to turn off the unit.

Conducting a seasonal inspection after extended period of non-use

• Check the batteries.
• Check that there is no obstruction around the air inlets and outlet vents.
• After 15 minutes of operation, it is normal to have the following temperature difference between the air inlet and outlet vents:

The units will not be used for an extended period

• Activate HEAT mode for 2~3 hours to remove any moisture left in the internal parts thoroughly. This is to prevent moulid growth.
• Turn off the power supply and unplug the unit.
• Remove the batteries from the remote control.

NON SERVICEABLE CRITERIAS
TURN OFF THE POWER SUPPLY AND UNPLUG THE UNIT. Then consult an authorized dealer in the following conditions:

• Abnormal noise during operation.
• Water/foreign particles have entered the remote control.
• Water is leaking from the indoor unit.
• The circuit breaker switches off frequently.
• The power cord becomes unnaturally warm.
• The switches or buttons are not functioning properly.

Panasonic Corporation

• Website: http://www.panasonic.com
• © Panasonic Corporation 2022
• Printed in Malaysia

References

• Panasonic North America | Create Today, Enrich Tomorrow

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